Nitrogen use efficiency in corn cropping system under Savannah conditions: effects...
Recovery of nitrogen in leguminous inoculated with rhizosphere organisms (arbuscul...
Use of nitrogen (15N) of green manure and urea and phosphorus (32P) from mineral f...
Nitrogen management in cowpea bean, wheat and corn: effects on plant nutrition, gr...
Long-term cover-cropping systems: 15N-fertilizer recovery and soil organic matter ...
Evaluation of the transfer of the residual nitrogen in intercropping tomato with g...