Lal, R

"Tillage and Crop Production in the Tropics" 'Source Title' Proceedings of the International Symposium on Applied Soil Physics in Stress Environment, January 22-26, 1989, Islamabad Lal, R 1990 Global climate change and pedogenic carbonates edited by Rattan Lal ... [et al.] 1999 Soil conservation and management in the humid tropics edited by D. J. Greenland and R. Lal 1977 Soil erosion in the tropics Lal, R. 1990 Soil physical properties and crop production in the tropics Lal, R 1979 SOIL PROCESSES AND WATER QUALITY LAL R. 1994 Tropical Agricultural Hydrology Watershed Management and Land Use Lal, R 1981