What is the approximate dry matter content of my cattle slurry?
Cattle slurry
2% Dry Matter (thin soup)
Total Nitrogen (kg N/m3 slurry)
1.6
Readily available Nitrogen (kg N/m3 slurry)
0.9
Total Phosphate (kg P205/m3 slurry)
0.6
Available Phosphate (kg P205/m3 slurry)
0.3
Total Potash (kg K20/m3 slurry)
2.4
Available Potash (kg K20/m3 slurry)
2.2
Total Nitrogen (kg N/m3 slurry)
2.6
Readily available Nitrogen (kg N/m3 slurry)
1.2
Total Phosphate (kg P205/m3 slurry)
1.2
Available Phosphate (kg P205/m3 slurry)
0.6
Total Potash (kg K20/m3 slurry)
3.2
Available Potash (kg K20/m3 slurry)
2.9
6% Dry Matter (medium soup)
10% Dry Matter (porridge)
Total Nitrogen (kg N/m3 slurry)
3.6
Readily available Nitrogen (kg N/m3 slurry)
1.3
Total Phosphate (kg P205/m3 slurry)
1.8
Available Phosphate (kg P205/m3 slurry)
0.9
3
Total Potash (kg K20/m slurry)
Available Potash (kg K20/m3 slurry)
4
3.6
The tables show the total and available nutrient content for the different dry matter contents of cattle
slurry. When planning nutrient applications, use the available figures when looking at crop requirements.
Source: RB209, The Fertiliser Manual, Defra; Images reproduced by permission of the Environment Agency, from Think Manures.