TY - BOOK AU - Syarifuddin,A. AU - Zandstra,Hubert G. ED - International Rice Research Institute. TI - Soil fertility, tillage, and mulching effects on rainfed maize grown after rice PY - 1981/// CY - Manila PB - International Rice Research Institute KW - Corn KW - Soils KW - Rice KW - Crop rotation ER -