Schroth, G. .
Trees, crops and soil fertility concepts and research methods / edited by G. Schroth and F.L. Sinclair. - Cambridge : CABI , 2003 - xii, 437p :
0-85199-593-4
Soil fertility-Research
J:1 / P3;1
Trees, crops and soil fertility concepts and research methods / edited by G. Schroth and F.L. Sinclair. - Cambridge : CABI , 2003 - xii, 437p :
0-85199-593-4
Soil fertility-Research
J:1 / P3;1