Farm Planning & Mechanisation Farm Planning & Mechanisation NQF Level 4 The TVET FIRST NC(V) series helps students, colleges and lecturers to meet the challenges and opportunities presented by the National Certificate (Vocational) curricula. The Student’s Books : •cover all the Subject Outcomes of the subject •contain appropriate weighting of topics •provide clearly defined key concepts •provide comprehensive, current and easy-to-follow content, at the appropriate language level, in a logical sequence and at a suitable pace •present students with a wide variety of learning and assessment activities. Farm Planning & Mechanisation NQF Level 4 NQF Level 4 Student’s Book ISBN 978 177030 472 7 W Burger & P Jones STUDENT’S BOOK TVET First Farm Planning and Mechanisation Student’s Book TVET FIRST Level 4 FirstFarmPlanAndMechLevel4 16/9/08, 9:53 am TVET FIRST Farm Planning and Mechanisation NQF Level 4 Student’s Book © W Burger and P Jones 2008 © Illustrations and design Macmillan South Africa (Pty) Ltd 2008 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, photocopying, recording, or otherwise, without the prior written permission of the copyright holder or in accordance with the provisions of the Copyright Act, 1978 (as amended). Any person who does any unauthorised act in relation to this publication may be liable for criminal prosecution and civil claims for damages. First published 2008 15 17 19 20 18 16 3 5 7 9 10 8 6 4 2 Published by Macmillan South Africa (Pty) Ltd Private Bag X19 2096 Northlands, 2116 Gauteng South Africa Text design by Heather Brooksbank Cover design by Deevine Design Artwork by Mike Parkin and Ian Greenop ISBN-13: 978 177030 472 7 WIP: 2117M000 e-ISBN: 978 143102 068 3 It is illegal to photocopy any page of this book without written permission from the publishers. The publisher would like to thank the following for permission to use photographs in this book: Natal Mechanised Farming Pietermaritzburg www.nmf.co.za While every effort has been made to trace the copyright holders and obtain copyright permission from them, in some cases this has proved impossible due to logistic and time constraints. Any copyright holder who becomes aware of infringement on our side is invited to contact the publisher. Note: Any reference to Further Education and Training (FET) in this book should be taken to mean Technical and Vocational Education and Training (TVET). To order any of these books, contact Macmillan Customer Services at: Tel: (011) 731 3300 Fax: (011) 731 3535 E-mail: [email protected] FirstFarmPlanAndMechLevel4 2 16/9/08, 9:53 am Contents Topic 1: Planning an agricultural enterprise......................................................... 1 Module 1: Natural resources and socio-economic components in sustainable farming................................................................................................2 Unit 1.1: Influence of abiotic resources on an agricultural enterprise.................................................................................... 3 Unit 1.2: Influence of biotic resources on an agricultural enterprise.....................................................................................11 Unit 1.3: Influence of socio-economics on an agricultural enterprise .................................................................................. 16 Module 2: Requirements for an agricultural enterprise ........................................................... 22 Unit 2.1: Setting up an agri-enterprise within the natural environment ............................................................................. 23 Unit 2.2: Setting up an agri-enterprise within the socio-economic environment .............................................................. 32 Module 3: Infrastructural requirements of an agri-enterprise ................................................. 40 Unit 3.1: Infrastructural requirements of a farming layout.................................................................................................... 42 Unit 3.2: Infrastructural requirements of farming facilities ................................................................................................... 48 Module 4: Choosing appropriate livestock and crops ................................................................ 62 Unit 4.1: Measuring what it is possible to produce................................................................................................................. 63 Unit 4.2: Placing crops and animals into the local context..................................................................................................... 69 Module 5: Agricultural production procedures.......................................................................... 76 Unit 5.1: Planning a crop production enterprise...................................................................................................................... 77 Unit 5.2: Planning a livestock production enterprise.............................................................................................................. 85 Unit 5.3: Harvest and post-harvest procedures ....................................................................................................................... 90 Module 6: Monitor and evaluate the progress of the agri-enterprise ....................................... 97 Unit 6.1: Monitoring production progress ............................................................................................................................... 98 Unit 6.2: Review and modify production plans..................................................................................................................... 102 Topic 2: Agricultural mechanisation .................................................................. 110 Module 7: Choosing between manual labour, draught animals and machines as power sources.............................................................................. 111 Unit 7.1: Using manual labour, draught animals and machines..........................................................................................113 Module 8: Tractors, their components and maintenance......................................................... 125 Unit 8.1: Construction of tractor’s engine............................................................................................................................... 126 Unit 8.2: Components of the tractor ....................................................................................................................................... 137 Unit 8.3: Lubrication and simple maintenance of a tractor.................................................................................................. 146 Module 9: Farm implements in operation................................................................................ 154 Unit 9.1: Cultivation equipment ............................................................................................................................................... 155 Unit 9.2: Other farm machines and equipment...................................................................................................................... 167 FirstFarmPlanAndMechLevel4 3 16/9/08, 9:53 am Module 10: Calibration of farm implements ............................................................................ 182 Unit 10.1: Calibration of crop sprayers.................................................................................................................................... 183 Unit 10.2: Calibration of seed and fertiliser distribution ..................................................................................................... 189 Module 11: Erect and maintain fences..................................................................................... 197 Unit 11.1: Different fences ......................................................................................................................................................... 198 Unit 11.2: Construction of corner posts, straining posts and gate posts ............................................................................ 205 Module 12: Safety precautions on the farm ............................................................................ 211 Unit 12.1: Safety when operating farm machinery ............................................................................................................... 212 Unit 12.2: Safety when handling farm chemicals ................................................................................................................. 219 Index ....................................................................................................................................... 226 Portfolio ................................................................................................................................ 227 FirstFarmPlanAndMechLevel4 4 16/9/08, 9:53 am Topic 1 Planning an agricultural enterprise 1 FirstFarmPlanAndMechLevel4 1 16/9/08, 9:53 am Module 1 Natural resources and socio-economic components in sustainable farming Overview In this module you will … • recognise the natural resources required for an agricultural enterprise • recognise other components of sustainable farming. 2 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 2 16/9/08, 9:53 am Introduction Words & Terms When you plan an agricultural enterprise, you must take into account the natural resources that are available, as well as the socio-economic components. In open fields and on natural pastures, the farmer has to rely on and work with the natural resources such as water, soil, plants, air and sunlight. Under controlled production conditions like tunnel and nursery production – the farmer has more control over production factors. Any agricultural enterprise, however, is influenced by the socio-economic components within a community, such as people, markets, etc. We will examine all of these factors in this module. Abiotic: th e non-livin g factors in the envi ronment, e.g. water, temperatu re Biotic: the living facto rs in the environm ent, e.g. p lants and animals Ecosystem : a comm unity of living o rganisms (biotic environm ent) supp orted by the non -living (ab iotic) environm ent Unit 1.1: Influence of abiotic resources on an agricultural enterprise 1.1.1 Introduction The abiotic factors, which are the non-living factors in the environment, influence the biotic (living) elements of a particular ecosystem. Life on Earth is controlled mainly by three abiotic factors: • water, the medium of all life processes • energy that is needed for these processes • the availability of chemical nutrients. Each living organism is adapted to a certain set of abiotic factors that exist in its environment. In this unit you will find out how abiotic factors affect living organisms in an environment. You will study the influence of the following abiotic factors: • temperature • water • sunlight • soil • wind. 1.1.2 Temperature The temperature of the environment has a great effect on the living things that exist in it. Most life is possible between temperatures of 1°C and 50°C. On land, temperatures vary according to: • height above sea level (altitude) • seasonal differences • distance from the sea Unit 1.1: Influence of abiotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 3 16/9/08, 9:53 am 3 • gradient (slope) of the land • distance from the equator. Words & Terms organic – living or d ead part o an anima f l or plant, containing carbon in its molecu les carbohyd rate – ene rgyproducing organic co mpounds of carbon (C), hydro gen (H) an oxygen (O d ), e.g. sug ars and starch Hill lipids – fa E Fig. 1.1: The direction of a slope affects the amount of sunlight it receives Temperature determines where living organisms will thrive, or grow best. For example, animals must be adapted to their surroundings in order to survive. Temperature influences the survival of animals directly, because different animals survive best in a specific temperature range. Temperature also influences animals indirectly, because it affects plant growth, and plants form the first link in the food chain that animals are part of. ts proteins – a group o f organic compound s containin g carbon, hydrogen , oxygen, nitrogen (N and some ) tim phosphoru es sulphur (S) and s (P) enzyme – a compou nd facilitates or speeds that up chemical reactions mineralis ation – ch ang organic su bstance in ing an to a nonorganic su bstance The average temperature of a region is less important for the survival of a living organism than how much the temperature changes from season to season or within a single day. So it is the minimum and maximum temperatures per day that are important for life, rather than the average temperatures of an area. South-facing slope North-facing slope Fig. 1.2: Plant growth is affected by the amount of sunlight that reaches the slope 4 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 4 16/9/08, 9:53 am 1.1.3 Water Water is an important inorganic nutrient and is essential for plant and animal life. Water reaches the ground as rain, hail or snow. The rainfall of a particular region is determined mainly by the geography of that region. The type and quantity of flora (plants) and fauna (animals) in a region are determined by the following: • the intensity of wet and dry seasons, and how long the wet and dry seasons last – this is more important than the total annual rainfall • the distribution of rain over a year – in some years there may be an exceptionally long dry season, and living organisms must be able to survive these long periods of drought • the relationship between rainfall and the amount of evaporation of water from soil and plant surfaces (transpiration) – the intensity of evaporation will determine whether a region will develop into grassland, a desert or a forest. The type of soil also plays a role in the availability of water for living organisms. The degree to which the soil can hold water – that is, the water capacity of the soil, is important. It will determine the quantity of water available for a growing plant. The amount of water vapour in the air (humidity) is also an abiotic factor in the ecosystem. Information about the temperature of a region is of little value if it is not linked to the humidity of the atmosphere. Temperature affects living organisms when there is either very high humidity (dampness) or very low humidity (dry conditions). Under dry conditions the water loss from plants is very high and they wilt (droop). Animals are in danger of dehydrating. In contrast, high humidity will disrupt the cooling systems of some animals, e.g. people cool down when their perspiration evaporates, which is not possible if the air is very humid. Animals such as poultry can become over-heated in hot, humid conditions and they can even die in such circumstances. ?? ? Did you know? Both plants and animals adapt in various ways to conserve water or to limit water losses. Words & Terms Flora: all types of p lants types of a nimals Water cap acity: the degree to which the soil can h old water Dehydrati on: water in th lack of sufficient e body for normal functionin g Fauna: all 1.1.4 Sunlight Sunlight – that is, the rays of the sun, is the primary source of energy on Earth. However, sunlight can be a problem when there is either too much or too little. Both scorching sunlight and too little light (for example, short days or overshadowing by other plants) can harm growth. Ecologically, the intensity or strength of sunlight and the duration of light (that is, the length of a day) are important to both plants and animals, and influence their behaviour. Unit 1.1: Influence of abiotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 5 16/9/08, 9:53 am 5 Early morning sun Midday sun Late afternoon sun Fig. 1.3: The effect of the sun’s intensity at different times of day The daily rhythm of light and dark controls the movements of animals as well as plants. Light intensity and the length of the day influence such things as reproduction cycles, animals’ migration and changes in the fur or feather cover of animals. Length of day has an important influence on plant growth. The rays of the sun are directly responsible for photosynthesis, the process through which glucose is formed in the green leaves of plants. Photosynthesis takes place when carbon dioxide from the atmosphere combines with water from the soil. 1.1.5 Soil Soil is the growth medium for plants. Plants are the first link in most food chains. Soil is made up of soil particles, air, water, and organic and inorganic material. The characteristics of a particular soil are important for healthy plant growth: • Soils with a medium to fine texture (feel and structure) are more productive than coarse soils. • Soils with a more crumbly structure are more productive than soil with a less crumbly structure. • Soils with a pH close to neutral (7) are more productive than soil with an acidic or alkaline pH. • The deeper the soil, the more productive it is. • The higher the water capacity of a soil type, the more productive it is. 6 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 6 16/9/08, 9:53 am 1.1.6 Wind Wind is moving air. The strength of the wind is greatly influenced by the shape or topography of the land and the presence or absence of mountains, valleys and bodies of water such as seas and lakes. For example, in valleys, rapid heating and cooling of the land cause winds. Cooler air is heavier and flows downhill in the valleys. Light, local winds may blow up the valley during the day. Ridges and mountains cause wind speeds to increase. Look at Fig. 1.4 – you will notice that the wind speed increases on the windward side but decreases on the leeward side. Words & Terms Topograp hy: the la nd forms surface fe and atures of an area Leeward: the opposite to sheltered side, the windw ard side Slow Slow Fast Fast rd dwa Le ew a e sid rd s ide Win Fast Slow Fast Slow Fig. 1.4: Ridges and mountains cause wind speed and direction to change ?? ? Did you know? The more productive the soil is, the better it will be as a growth medium for plants. The better the vegetation, the more pastures will be available for wild and domestic animals in a region. Unit 1.1: Influence of abiotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 7 16/9/08, 9:53 am 7 Bodies of water also influence the wind. The temperatures of large bodies of water and the land surface are different. During the day, warm air rises over the land and heavier, cooler air blows in from the sea. At night, as the land cools, the process is reversed and the wind blows from the land out to the sea. This is explained in Fig. 1.5. SEA BREEZE LAND BREEZE DAY NIGHT Fig. 1.5: The wind direction at the coast changes from day to night Wind can have a negative effect on the efficiency of a region’s rainfall. Winds, especially hot winds, increase the speed at which water is lost from the soil and plants. Wind also has a direct influence on day and night temperature. On a cold day, wind will lower the temperature even further. On a hot day, berg winds can result in temperature increases. ?? Wind that blows over hot land surfaces – for example, a desert – will be a hot wind when it reaches the region next to the desert. In the following activity, you will observe how abiotic factors influence local ecosystems. It is obviously not possible to observe these factors all over the world. However, observing their effect on a habitat in your region will give you a good idea of how they influence the ecosystems of the world. ? Did you know? A berg wind is a hot, dry wind blowing over the mountains in the interior plateau of South Africa towards the coast. The wind blows over a mountain and increases in temperature as it falls over the mountain on the lee side. Words & Terms Habitat: th e place or growth conditions that are m ost suitable fo r a specif ic plant or animal 8 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 8 16/9/08, 9:54 am Assessment activity 1 Study the effects of abiotic factors in the ecosystem Work in a group to obtain information about the abiotic factors in your environment. Then work on your own to interpret the data you have obtained. 1. Find seven suitable sites for a veld survey. Choosing a different site for each of the seven factors below will ensure that you observe the separate effects of each of these factors on animal and plant life at the site. Look at Figures 1.6 and 1.7 to help you. Fig. 1.6: Possible sites for a veld survey Note: This type of survey should be done in an undisturbed natural habitat where the effect of the physical factors on the vegetation and animal life has not been influenced by the activities of humans. Find seven suitable sites that have the following physical factors: A – On top of a hill or ridge B – In a valley C – On the northern slope of a hill or mountain D – On the southern slope of a hill or mountain E – On the eastern slope of a hill or mountain F – On the western slope of a hill or mountain G – On flat land Fig. 1.7: A survey site in a valley Unit 1.1: Influence of abiotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 9 16/9/08, 9:54 am 9 2. Use a piece of rope 4 m long to mark out an area 1 m × 1 m (1 m2) on each survey site. Peg the rope at each corner of your site. This sample area is called a quadrant. Fig. 1.8: Survey quadrant 3. Obtain the following information on each one of the 1m2 plots: Observation A B C D E F G Number of plants Average height of plants Plant adaptations Presence of layer of dead plant matter on soil surface Presence of (soil) organisms: • ants • grasshoppers • earthworms • crickets • dung beetles, etc. 4. Use the results of your survey to write a report about the differences between the various habitats in your environment. (Note: Consider the influence of the following abiotic factors on life in the different habitats: temperature, water in the soil and air, sunlight, soil and wind.) 10 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 10 16/9/08, 9:54 am Assess yourself Assess your performance in the following activities: 1 2 3 4 5 Study the effects of abiotic factors in the ecosystem 1 = not achieved, 2 = not yet competent, 3 = competent, 4 = highly competent, 5 = outstanding Summary In this unit the influence of the non-living factors (the abiotic factors) on the environment is discussed. The discussion is followed by a survey of different habitats by the students, who have to observe and report on their observations. Unit 1.2: Influence of biotic resources on an agricultural enterprise 1.2.1 Introduction The abiotic resources inside an ecosystem determine the types of organisms living there. A living community is a combination of different species that form an ecological unit (for example, the savannah or grassland region). The different species inside this ecological unit are connected in some way with one another. These units can be very big – for example, a forest that stretches over thousands of kilometres – or they can be very small, like a community of fungi living in and on a rotten tree trunk. When plants and animals share the same habitat, they interact with one another and form a biotic community. Unit 1.2: Influence of biotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 11 16/9/08, 9:54 am 11 Energy from the sun SUN Green plants use carbon dioxide and energy Energy stored in plant Carbon dioxide in the air Animals breathe out carbon dioxide Rat eats plant Cat eats rat Oxygen produced by green plants Animals breathe in oxygen Goat’s droppings fertilise grass Goat eats grass (acacia sapling) Fig. 1.9: A biotic community An environment with a great variety of abiotic factors will attract a greater number of different species. This is because it will have more micro-habitats suitable for a greater variety of species. The farmer has to recognise all the natural resources – abiotic and biotic – to ensure that the farming system is sustainable. Words & Terms Micro-hab ita inside a la t: a tiny habitat rger habit at capable o f supportin that is g flora an fauna d 1.2.2 The role of plants (or vegetation) in the ecosystem Plants provide food for macro-organisms (e.g. animals) and for micro-organisms (e.g. soil bacteria) that break down dead plant material to feed themselves. This dependence of living organisms on one another forms a food chain in nature. The feeding relationship between plants and animals gives rise to the carbon cycle. Fig. 1.10 illustrates how the carbon in carbon dioxide in the air is cycled through a food chain. ?? ? Did you know? In a forest you will find different species of trees growing at different heights in order to catch the sunlight (for photosynthesis). Below the trees, near to the ground, the conditions are totally different from those that tall trees have to cope with. The low-growing plant species are adapted for growing in shade. This abiotic variety results in different plant species. 12 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 12 16/9/08, 9:54 am carbon dioxide is taken up by leaves for photosynthesis photosynthesis in green leaves and stems forms organic matter carbon dioxide is released into the atmosphere animals feed on plants decomposition in the soil releases carbon dioxide old leaves and stems die and fall to the ground. They are decomposed by micro-organisms minerals from the humus are taken up by the roots of plants organic matter decomposes further to form humus decomposed plants and animal matter form part of the soil Fig. 1.10: The carbon cycle The role of plants in the ecosystem can be summarised as follows: • Plants (trees, shrubs, grasses, etc.) grow, using nutrients from the soil. When plants die, their remains decompose and the nutrients return to the soil. • These decomposed plant remains form organic material (also called humus) that improves the soil’s capacity to hold water. • Plants and plant remains cover and stabilise soil and prevent wind and water erosion. • Higher-growing plants prevent the rays of the sun from reaching the lower-growing plants and animals that live on and in the soil. • Foliage (all the leaves of a plant) captures the water that escapes from the soil in the form of vapour. This creates a micro-climate with a higher humidity than the surrounding atmosphere. • In a plant community, there is usually a single species that dominates in number and size. When this dominant (strongest) species is removed, a non-dominant species like grass will then become dominant. • Plants always compete with one another, either among members of the same species or among different species. • The different plant species compete for underground water and sunlight. This results in natural selection, also referred to as the ‘survival of the fittest’ (or strongest). When the natural vegetation is allowed to develop under specific physical conditions (rain, Unit 1.2: Influence of biotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 13 16/9/08, 9:54 am 13 sunlight, humidity, etc.), some of the species in the community will adapt and others will die out and disappear. An example of this adaptation to changing natural conditions is found where xerophytic plants (succulents) become the dominant species in a community of short bushveld plants during continuous drought. Words & Terms 1.2.3 The role of animals in the ecosystem In their natural environment, animals have a close relationship with one another and with the vegetation. They live in equilibrium (balance) with the ecosystem. Animals obtain their food from plants in the veld. When there is a shortage of plants, wild animals will either migrate to better veld or their numbers will drop, because some animals will die as a result of the lack of food. Xerophyti c: describ es plants that have adapted to living in d conditions ry , e.g. by s toring wa in their le ter aves, as in the cactus As soon as humans interfere, the natural balance changes. The natural interaction between plants and animals becomes an artificial situation. For example, humans bring domesticated animals, such as sheep and cattle, into an area. These animals are foreign to the ecosystem. The humans then arrange for forced grazing through camp systems. 1.2.4 Ecological succession In nature there is an orderly succession of communities that follow one another over time. This means that communities of plant and animal species follow after each other in an orderly way. A community can establish itself for the first time on a newly formed piece of land, like a new island formed through the volcanic flow of lava. This is called primary succession. The first community of plants and animals on this newly developed piece of land is called a pioneer community. As the community establishes itself, the abiotic factors start to change. The changed circumstances create different habitats. These become more suitable for another combination of organisms. A new community then establishes itself. This is called secondary succession. As the physical environment becomes more habitable, follow-up species such as new plants will take root and animals will migrate into the habitat. The physical environment of a region is, however, restricted (as a result of the abiotic factors) to a certain community of species. These species form the ceiling of succession for that region, which means that no more species can join that community. This ceiling (or limit) of succession in community development in a certain ecological region is called the climax community. A good example of ecological succession is found in plant communities, such as grasses, shrubs and trees. The climax plant community in a habitat is stable and in balance with that particular physical environment. However, when humans bring domestic animals into the environment for livestock farming, this balance (or equilibrium) may be disturbed. This happens, for example, when too many animals are kept on natural veld and exceed the carrying 14 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 14 16/9/08, 9:54 am capacity of that veld. The animals eat the veld faster than it can replace itself. The climax plant community will then quickly weaken and be replaced by a new pioneer community. The new pioneer community of plants is usually made up of tougher, more hardy plants that are less nutritional for livestock and less pleasant to the taste (i.e. less palatable). In other words, when people disturb the plant community by exploiting the natural resources, it leads to the formation of a denuded or bare environment such as a desert. 1.2.5 Influence of humans As soon as humans interfere, the following situations occur: • Domestic herbivores like sheep, cattle and goats feed on plants (leaves, seed and fruit). When too many of them live in a campedoff area, they can disturb the balance in nature by overgrazing. • These herbivores may select only certain plant species to eat. This will have a negative influence on the interaction between plant species. For example, the less palatable, less edible plant species are left undisturbed by the livestock and become the dominant species. • Carnivores directly control the numbers of the herbivores – until humans interfere. • As soon as humans interfere, the herbivores are protected against the carnivores. This situation artificially increases the number of herbivores. Example: Farmers protect their sheep against jackals by killing the jackals on their farms. Rodent populations then increase, because jackals eat mostly rodents. Assessment activity 1 Influence of humans on the natural balance in nature Work in a group or with a partner and study the influence of humans on the natural balance (equilibrium) in nature. 1. In your study group, discuss the influence of human interference on an ecosystem. Give more examples of interference to add to those already mentioned in the paragraphs above. 2. Write an essay of about 30 lines (about 250 words) on the impact that livestock farming in your area has on the equilibrium between the abiotic and biotic factors. The title of your essay may be: Sound agricultural production practices ensure enough food AND survival of the planet. You should refer to the following key words and concepts: • controlled grazing through a system of camps • introduction of new animal breeds • control of game through hunting or fenced game parks • fertilising soil • use of pesticides • growing artificial pastures • air pollution through fuel burning • using land for urbanisation • turning natural pastures into crop production fields. Unit 1.2: Influence of biotic resources on an agricultural enterprise FirstFarmPlanAndMechLevel4 15 16/9/08, 9:54 am 15 Assess yourself Assess your performance in the following activities: 1 2 3 4 5 Influence of humans on the natural balance in nature 1 = not achieved, 2 = not yet competent, 3 = competent, 4 = highly competent, 5 = outstanding Summary This unit deals with the influence of biotic resources on an agricultural enterprise. The emphasis is on the harmony among the different biotic resources – referred to as ‘the equilibrium in nature’ – and the influence of this equilibrium on a sustainable farming system. Unit 1.3: Influence of socioeconomics on an agricultural enterprise Words & Terms 1.3.1 Introduction Working on the land to produce a crop is an economic act because it brings in food, money, or both. The way that farmers operate (individually or in a group) and whether men or women work in the lands are social issues. The economic activities in a farming community therefore involve more than just working on a piece of land to produce a crop. Other economic aspects of farming include: • the quantity and quality of crops and livestock that are produced • the availability of natural resources and other factors of production, as discussed in Units 1 and 2 • the demand for agricultural produce – that is, what products consumers want and are prepared to buy. Economic and social forces at work in a specific community will determine demand. Some examples of demand include: • In poorer communities the demand will be mostly for basic food products. As people earn more, they demand luxury goods in addition to basic food stuffs. • In certain communities people prefer red meat products, while other communities may prefer chicken. We will now look more closely at socio-economic components that have a direct or indirect influence on a sustainable farming system. 16 Economic : to do wit h the productio n, consum ption and marketing of goods – in this case, agri cultural g oods Social: de scribes th e structure of commu nities and how the members of commu nities relate to o ne anothe r. Examples of social m atters are the ro les women, re of men and lationship sb old and yo ung people etween , family relationsh ips and fr iendships Topic 1: Module 1 FirstFarmPlanAndMechLevel4 16 16/9/08, 9:54 am Think about it The demand for a product is affected by the social behaviour and attitudes of people as well as by economic factors such as the income of households. 1.3.2 Land ownership and industrialisation The increasing human population has caused land to become something of value that can be sold. As land becomes scarce (in short supply) it gains value as a source of wealth in itself. Because land now has value, the tendency during the last century has been for land ownership to change from communal to individual ownership. The system of individual land ownership has had certain negative results: • In many cases, land that belonged to a single household has to provide for the livelihood of more than one child when the owner dies. As a result, the land is divided into smaller and sometimes unproductive units so that each child gets a portion. • A private owner of land can misuse his or her land. • Land can be used for speculation purposes. This means that someone can buy land to simply sell it again later at a higher price. • Poor people can be excluded from land ownership because they cannot afford to buy it. Words & Terms Primary a gri of agricult culture: production ural produ cts from the land Secondary agricultu re: processin g of agric ultural products Individual land ownership leads to industrialisation Industrialisation means that modern technology is used in farming activities (primary agriculture). Modern technology is also used to process agricultural products into canned, frozen and other forms of final products (secondary agriculture). Study Table 1, which shows the relationship between primary agriculture and secondary agriculture. The development of secondary agriculture has helped to industrialise agriculture in both the primary and secondary sectors. Table 1: Primary and secondary agriculture Primary agriculture Secondary agriculture Inputs (resources) Processes (technology used for ploughing, harvesting, etc.) Outputs (products) Inputs (resources) Processing (technology used for processing and manufacture) Outputs (products) Soil, water, maize seeds Tractors, ploughs Maize crops Maize Milling machines Maize meal Soil, water, cotton seeds Tractors, harvesting machines Cotton Cotton Spinning and weaving machines Cotton fabric and garments Soil, water, seedlings Tractors, harvesting machines, irrigation pipes Fruit Fruit Processing machines Fruit juice, canned fruit Unit 1.3: Influence of socio-economics on an agricultural enterprise FirstFarmPlanAndMechLevel4 17 16/9/08, 9:54 am 17 Beef cattle Kraal Beef Meat Processing machines Canned meat, frozen products, sausages Dairy cattle Milking machines Milk Milk Processing machines Ice-cream, yoghurt Outputs of primary agriculture serve as inputs to secondary agriculture. In the next activity you will obtain a better understanding of the agricultural industrialisation that has been taking place in South Africa. Assessment activity 1 Link primary and secondary agriculture Work on your own to describe the link between primary agriculture (production) and secondary agriculture (processing) by studying Table 1 and answering these questions: 1. Is it possible for a secondary industry to develop in a country without a productive primary sector? Give reasons for your answer. 2. How can secondary agriculture encourage the use of modern technology in the primary sector? 3. Name ten products of the primary agricultural industry that can be used as raw material in the secondary industry. Do not use the examples given above. 4. Compare the skills needed by employees in the primary and secondary sectors. 5. What manufactured goods (outputs) are used as inputs by the primary sector? 1.3.3 Storage facilities The economy of the region determines whether there are storage facilities, and how much food and fibre the facilities can store. In communities where commercial farming takes place, there are usually adequate storage facilities, such as silos for grain and cold storage for perishable products. In communities where subsistence farming and cash crop farming take place, storage facilities may be smaller or not available at all. In such cases, products may perish or become contaminated (spoilt) if they are not used soon enough. In the workplace The farmer is not able to control or change the local social and economic environment. Instead the farmer has to adapt his or her farming venture to the socio-economic forces that exist in that area. Farmers’ associations The structure of organised agriculture depends on the farmer. Without the farmer’s efforts, there can be no farmers’ organisation. The individual farmer joins his or her local association, where farming 18 Topic 1: Module 1 FirstFarmPlanAndMechLevel4 18 16/9/08, 9:54 am problems can be discussed and dealt with. In other words, the local association consists of farmers working to protect their own interests. These associations provide a meeting place where farmers can identify problems. They can arrange for farmers to get legal and political representation. The association keeps every farmer informed about what the organisation is doing on behalf of the members. A farmers’ association can only operate as an organised industry if every farmer makes a contribution to the activities of that organisation. 1.3.4 Agricultural co-operatives Farming in South Africa has developed – as it has all over the world – into a big industry. Like any big industry, agriculture needs to be run according to sound management principles. Because the farmer is occupied in the production phase of the agricultural process, he or she may not have the time or skill to market and sell the agricultural products. To solve this problem, farmers have established a body or organisation that functions as a co-operative structure – generally known as the farmers’ co-op. Farmers hold ownership in this co-op in the form of shares. Profits from the co-op are distributed according to this shareholding, i.e. if the farmer owns 5% of the shares, he or she will get 5% of the profits. ?? ? Did you know? Recently farmers’ cooperatives have been transferred into companies. In brief, a co-op is owned by the farmers of a region and it manages the marketing and selling of their produce. In many cases the co-op will also become involved in the buying of equipment for farmers, or the financing of new projects. 1.3.5 Other socio-economic factors Other socio-economic factors that influence the success of an agricultural enterprise include: • marketing and distribution of agricultural products. There must be marketplaces where farmers can sell their products. In order to distribute produce to consumers, marketing can be done by farmers themselves or by traders, agents or co-operatives. • the supply of production factors such as fertilisers, pesticides, seeds and appropriate technology. These products make farming activities more productive. Therefore this economic factor will determine the success of farming ventures in an area. Their supply is influenced by the buying power of the farmer in that area. Unit 1.3: Influence of socio-economics on an agricultural enterprise FirstFarmPlanAndMechLevel4 19 16/9/08, 9:54 am 19 • transport facilities to and from an agricultural region. Farmers need transport to get the produce to the market. Therefore transport is necessary to manage the agricultural venture properly. Assessment activity 2 The social and economic environment in your area 1. Working individually, describe the socio-economic environment in your area, using the table below to guide you. The left-hand column contains social or economic factors that may be part of the local environment. The right-hand column contains key words to serve as clues for your description. Social and economic factors Influence on the socio-economic environment in your area Quantity of agricultural produce Quality of production of agricultural produce Subsistence/cash/commercial farming The abiotic environment as influenced by physical factors Good/bad/average farming area Demand for agricultural produce Strong/weak/average economical forces Storage facilities Adequate/inadequate (give reasons) Supply of production factors Adequate/inadequate (give reasons) Transport facilities Adequate/inadequate (give reasons) Traditions of the community Adequate/inadequate (give reasons) Preference for certain products 2. Work in groups to discuss possible solutions to problems that may result from the socioeconomic environment in your area. A list of such problems (unfavourable environments) is given in the table below with a clue to solving the problem(s): 20 Unfavourable socio-economic environment Clue to solving the problem caused by the unfavourable condition The quality of agricultural produce is not satisfactory Technical advice The quantity of agricultural produce is low Economic support Physical factors are unfavourable Technical and economic support Demand is inadequate for cash or commercial production Advertising/information campaigns Storage facilities are inadequate Solar drying and cooking equipment Transport infrastructure is inadequate Drying facilities Marketing and distribution channels to get products to the consumer are inadequate Air-sealed packing Supply of production factors such as fertilisers and pesticides is inadequate Road stalls and/or marketing through farmers’ cooperation Provision through farmers’ co-operative Topic 1: Module 1 FirstFarmPlanAndMechLevel4 20 16/9/08, 9:54 am Assess yourself Assess your performance in the following activities: 1 2 3 4 5 Link primary and secondary agriculture The social and economic environment in your area 1 = not achieved, 2 = not yet competent, 3 = competent, 4 = highly competent, 5 = outstanding Summary The unit gives a description of the South African socio-economic environment for an agricultural enterprise. It refers to land ownership and industrialisation resulting from private enterprise. It touches on provision of services in a modern farming industry. Unit 1.3: Influence of socio-economics on an agricultural enterprise FirstFarmPlanAndMechLevel4 21 16/9/08, 9:54 am 21
© Copyright 2026 Paperzz