1. Tillage management changes, size distribution of aggregates and microstructure of soil used for irrigated row crops;Adem;Soil Tillage Res.,1984
2. Weeds in cropping systems as affected by hydrology and weeding regime with emphasis on dry seeded rice;Ahmed,1979
3. Past research in weeds and weed control in Bangladesh and future directions;Ahmed,1982
4. Weeds in rainfed rice cropping systems as affected by landscape position;Ahmed,1982
5. Ecological studies of weeds on arable land. IV. On the types produced by the adaption of soil water to weeds;Arai;J. Kanto-Tosan Agric. Exp. Sta.,1955