00000cam a22000004a 4500 UP-1685594773861372876 Buklod 20250127093934.0 g||| | || || ta 050705s1996 xx a rb |000 0|eng d (iLib)UPBAG-00000021818 BAG rda eng SB 191 M2 E76 Erosion / productivity modelling of maize farming in the Philippine uplands by R.A. Nelson ... [et. al.]. Los Baños, Laguna SEAMEO Regional Center for Graduate Study and Research in Agriculture 1996. v. ill. 28 cm Working paper/SEARCA-VQ Uplands Research Project no. 12, 13, 14, 15 "October 1996" Includes bibliographical references. pt. 1. Simple description of agricultural production systems simulator. -- pt. 2. Parameterising the agricultural production systems simulator. -- pt. 3. Simulation of alternative farming methods. -- pt. 4. Economic analysis of alternative farming methods. Corn Philippines. Soil conservation Philippines. Nelson, R.A. FI UPBAG UPBAG-MAIN SB 191 M2 E76 Book