|
Vermicompost
Commonly available and applied farm yard manure (FYM) and vermicompost etc. are generally low in nutrient content, so high application rates are needed to meet crop nutrient requirement. However, in many developing countries including India, the availability of organic manures is not sufficient for crop requirements, partly due to its extensive use fo cattle dung is energy production. Under these limitations, organic manures like FYM and vermicompost may be used in combination with other inputs for organic production.
Composition of FYM
|
Nutrient
|
Vermicompost
|
|
N (%)
|
1.65
|
|
P2O5
|
0.50
|
|
K2O
|
0.80
|
|
Calcium (%)
|
0.44
|
|
Magnesium (%)
|
0.15
|
|
Iron (ppm)
|
175.2
|
|
Manganese (ppm)
|
96.51
|
|
Zinc (ppm)
|
24.43
|
|
Copper (ppm)
|
4.89
|
|
C: N Ratio
|
15.50
|
|
