Table 1.2-8. Nitrogen removal by legumes.
| Legume crop (no nitrogen application recommended) |
Pounds of N removed/unit of yield |
Pounds of N removed/A |
Comments |
|---|---|---|---|
| Alfalfa (5 tons/A) | 50 | 250 | Although legumes will use N from manure and other sources, applying N may increase the competition from weeds and grasses. If you apply manure, limit it to an application rate that balances the crop’s P requirement. |
| Soybeans (40 bu/A) | 3.2 | 130 | Although legumes will use N from manure and other sources, applying N may increase the competition from weeds and grasses. If you apply manure, limit it to an application rate that balances the crop’s P requirement. |
| Trefoil (3.5 tons/A) | 50 | 175 | Although legumes will use N from manure and other sources, applying N may increase the competition from weeds and grasses. If you apply manure, limit it to an application rate that balances the crop’s P requirement. |
| Clover (3.5 tons/A) | 40 | 140 | Although legumes will use N from manure and other sources, applying N may increase the competition from weeds and grasses. If you apply manure, limit it to an application rate that balances the crop’s P requirement. |