TY - THES ID - 8239484 TI - Effectiveness of phosphate rock on ferralsols in Tanzania and the influence of within-field variability. PY - 2000 SN - 9058082571 PB - Wageningen : Wageningen University, DB - UniCat KW - Engrais phosphaté KW - Phosphate fertilizers KW - Fertilité du sol KW - soil fertility KW - Ferralsol KW - Ferralsols KW - Engrais organique KW - Organic fertilizers KW - Système de culture KW - cropping systems KW - Zea mays KW - Légumineuse à grains KW - Grain legumes KW - République-Unie de Tanzanie KW - United Republic of Tanzania KW - Theses UR - https://www.unicat.be/uniCat?func=search&query=sysid:8239484 AB - ER -