Team: Action Sofia
Ivan Banko
Lucia Ličková
Michaela Srnková
Jakub Potančok
Adam Stražovec
SLOVAKIA
Secondary Grammar School of Ján Chalupka Brezno
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The aim of research
Theory
◦ Nitrogen
◦ Fertilizers- return of nitrogen into the soil
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Research – laboratory work
Results
Discussion
Conclusion
Future plans
Bibliography
illustrative image
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to investigate the necessity of nitrogen for
the plant growth
to compare the effect of various fertilizer
concentrations (NH4NO3) on plant growth
Author of photo: Lucia Ličková
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Production of ammonium nitrate in two ways.
Germination of bean seeds.
Growing bean in fertilizer solution, blind
sample (distilled water).
Analysis of results.
Production of posters and presentations.
Author of photo: Klaudia Kvaková
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Nitrogen
essential element for the life of living organisms
important part of proteins and nucleic acids
human body is not able to produce nitrogen
nitrogen is absorbed through plant roots and
bacteria living nearby
◦ plants convert nitrogen into inorganic compounds
◦ result – increasing quality of yield crops containing
nutrients
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Author of photo: Klaudia Kvaková
Pict.1 – Nitrogen cycle in nature
FERTILIZERS – return of nitrogen into the soil
 organic fertilizers
 synthetic fertilizers – nitrogen based
fertilizers with ammonium
 Haber-Bosch ammonium synthesis
 production of ammonium nitrate
◦ using titration of ammonium with nitric acid
◦ based on determination of pH and adding
ammonium or nitric acid
Pict.2: Scheme of ammonium production - Haber₋Bosch method
Discussion with
Mgr. Martina Holečkova
about Africa
• Poverty
• Houses without electricity
• Schools without computers
Fertile soil in Rwanda, Kongo
Pictures 3, 4: Discussion
about life in Africa
Author of photos: Klaudia Kvaková
Discussion with
Dr. Šimon Budzák
Pictures 5,6: Lecture – effect
of nitrogen on plants and
importance of nitrogen
based fertilizers
Author of photos: Klaudia Kvaková
Pict.9: Checking pH
Pict.7: Preparation
of NH4NO3 by titration
Pict.8: Preparation of
NH4NO3 by mixing
NH3 and HNO3
Pict.10: NH4NO3
Author of photos: Klaudia Kvaková
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Study of literature about bean cultivation
Laboratory preparation of fertilizers
Germination of bean seeds
Growing in solutions – unsuccessful
Growing in three types of substrates
Observation
Documentation
Processing
Results
Pict. 21: Plants – water solutions
Author of photo: Klaudia Kvaková
Pict. 11: Laboratory work
Pict. 12: Searching for information
Pict. 13: Germination of bean seeds
Pict. 14: Planting beans
Author of photos: Klaudia Kvaková
SOIL
w(%)
NH4NO3
Fertilizer solution / distilled water (ml)
15.2.
17.2.
19.2.
21.2.
23.2.
25.2.
27.2.
1.3.
Janka
1
20
20
10
10
10
10
10
10
Danka
2
20
20
10
10
10
10
10
10
Števko
4
20
10
10
10
Ferko
0
20
20
20
10
10
10
10
10
Tab No.1: Volume of ammonium nitrate solution and distilled water
used for growing bean in the soil
OBSERVATION
PERLITE
w(%)
NH4NO3
Fertilizer solution/ distilled water (ml)
15.2.
17.2.
19.2.
21.2.
23.2.
25.2.
27.2.
1.3.
Evička
1
20
20
20
20
20
10
10
10
Didka
2
20
20
10
10
10
10
10
10
Zuzka
4
20
20
20
20
20
10
10
-
Filipko
0
20
20
20
20
20
10
10
20
Tab No.2: Volume of ammonium nitrate solution and distilled water
used for growing bean in perlite
OBSERVATION
SAND
w(%)
NH4NO3
Fertilizer solution / distilled water (ml)
15.2.
17.2.
19.2.
21.2.
23.2.
Sofia
1
40
40
30
10+10
20
10-20
Borka
2
40
40
30
10+10
20
10-20
Dorka
4
40
40
30
10+15
20
Kubko
0
40
40
30
20
20
25.2.
27.2.
10
1.3.
-
10-20
Tab No.3: Volume of ammonium nitrate solution and distilled water
used for growing bean in the sand
RESULTS
PLANTS GROWING IN PERLITE
w (%)
NH4NO3
Height of plants in cm
7th day
14th day
21st day
28th day
Evička
1
7
23
47
74
Didka
2
9
24
45
70
Zuzka
4
7
16
-
-
Filipko
0
10
25
44
68
Tab No.4: Plants growing in perlite.
PLANTS GROWING IN PERLITE
Pict. 15: Plants – perlite day No.1
Author of photos: Lucia Ličková
Pict. 16: Plants – perlite day No. 28
PLANTS GROWING IN SOIL
w (%)
NH4NO3
Height of plants in cm
7th day
14th day
21st day
28th day
Janka
1
7
19
41
62
Danka
2
7
20
43
56
Števko
4
8
16
-
-
Ferko
0
6
14
35
42
Tab n.5: Plants growing in soil
PLANTS GROWING IN SOIL
Pict. 17: Plants – soil day n.1
Pict. 18: Plants – soil day n. 28
Author of photos: Ivan Banko
PLANTS GROWING IN SAND
w (%)
NH4NO3
Height of plants in cm
7th day
14th day
21st day
28th day
Sofia
1
10
27
48
68
Borka
2
12
27
47
63
Dorka
4
7
15
-
-
Kubko
0
6
20
36
51
Tab. No. 6: Plants growing in sand
PLANTS GROWING IN SAND
Pict. 19: Plants- sand day No.1
Pict. 20: Plants – sand day No.28
Author of photos: Lucia Ličková
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growing in solutions
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growing in 3 substrates
◦ unsuccessful
◦ inhalation through a straw- deficient
◦ decay process
◦ sand, perlite, soil – do not contain nitrogen
◦ fertilization with various concentration of NH4NO3
plants planted in perlite grow better
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4 % solution
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1 % solution
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different conditions for growing
◦ high content of NH4NO3
◦ ideal content of NH4NO3 for healthy growth
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NH4NO3
◦ high content of nitrogen
◦ in the right concentration – suitable for fertilization
 healthy growth of plants, higher yield crops
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to increase the number of measurements
to grow plants under the same conditions
(temperature, humidity)
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new skills, knowledge, experience
team work
working with literature
future use
Pict. 22: Team work
Author of photos:
PaedDr. Jana Chlebušová
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Scheme- ammonium production. Available on the Internet:
http://www.osel.cz/popisek.php?popisek=17938&img=1315
827704.jpg
Scheme- nitrogen cycle in the nature: HANTABÁLOVÁ, I.
a kol.: Prírodopis pre 9. ročník základných škôl. Bratislava:
EXPOL Pedagogika, 2003. ISBN 80-89003-71-0
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BURNIE, D.: Malá encyklopédia prírody. Londýn: Dorling
Kindersley Book, 1994. ISBN 978-80-88979-30-2
ROGERS, K. a kol.: Školská encyklopédia – Čo by som mal
vedieť o svete okolo nás. Londýn: Usborne Publishing, 2000.
ISBN 80-89065-32-5
JONIAKOVÁ, D.: Chémia pre základné školy. Bratislava: SPN,
1997. ISBN 80-08-02568-9
ŠALING, S. a kol.: Veľký slovník cudzích slov. Prešov: SAMO,
2006. ISBN 80-89123-05-8
Materials used in the project available on the Internet:
http://www.chemgeneration.com/sk/milestones/fix%C3%A1ci
a-dus%C3%ADka.html
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Experience, skills and knowledge we achieved
in this project, moved us forward. We learnt
to share the duties in the team. We improved
our work with literature and we managed to
choose the important facts we would like to
present in the project. We will be able to
apply the experience and skills in the future
study of science and humanities, in writing
thesis or team work problem solving.