TY - BOOK ID - 145375924 TI - Nutrient management for food crop production in tropical farming systems : Proceedings of the symposium held at Universitas Brawijaya, Malang, Indonesia, October 19-24, 1987 PY - 1989 PB - Haren : Malang : Institute for Soil Fertility ; Universitas Brawijaya, DB - UniCat KW - Tropical zones KW - cropping systems KW - soil fertility KW - Fertilizer application KW - Application methods KW - Production KW - Tropics KW - Farming system KW - Indonesia UR - https://www.unicat.be/uniCat?func=search&query=sysid:145375924 AB - ER -