Nitrogen content and accumulation of greenmanures
Local name
N (%)
N accumulation
Biomass
Sithagathi Dhaincha Manila agathi Sunnhemp Pillipesara Wild Indigo
2.29-3.10 2.55-3.21 3.20-3.37 2.80-3.15 2.16-2.77 2.90-3.22
115-160 kg/ha 130-185 170-220 80-130 85-125 70-115
20.2 t/ha 26.3 24.9 16.8 17.6 16.8
Nutrient content of non-conventional green manure
| Green manures | Total (N %) | C:N Ratio | Total P (%) | Total K (%) |
| Trees (leaves or twigs) | ||||
| Neem Delonix elata Delonix regia Peltophorumferrugenum Cassia nigricans | 2.83 3.51 2.76 2.63 2.73 | 70:1 27:1 32:1 34:1 - | 0.28 0.31 0.46 0.37 0.18 | 0.35 0.13 0.50 0.50 0.50 |
| Weeds | ||||
| Adathoda vesica Parthenium hysterophorus Eicchornia crassipes T portulacastrum Ipomoea cornea Calotropis gigantea Cassia pistula | 1.32 2.68 3.01 2.64 2.01 2.06 1.60 | 60:1 30:1 29:1 32:1 43:1 64:1 120:1 | 0.38 0.68 0.90 0.43 0.33 0.54 0.24 | 0.15 1.45 0.15 1.30 0.40 0.31 1.20 |
Total (N %)
C:N Ratio
Total P (%)
Total K (%)
Trees (leaves or twigs)
Neem Delonix elata Delonix regia Peltophorumferrugenum Cassia nigricans
2.83 3.51 2.76 2.63 2.73
70:1 27:1 32:1 34:1 -
0.28 0.31 0.46 0.37 0.18
0.35 0.13 0.50 0.50 0.50
Weeds
Adathoda vesica Parthenium hysterophorus Eicchornia crassipes T portulacastrum Ipomoea cornea Calotropis gigantea Cassia pistula
1.32 2.68 3.01 2.64 2.01 2.06 1.60
60:1 30:1 29:1 32:1 43:1 64:1 120:1
0.38 0.68 0.90 0.43 0.33 0.54 0.24
0.15 1.45 0.15 1.30 0.40 0.31 1.20