Studies on integrated nutrients, water and weed management in cereals, pulses, oilseeds, vegetables and spices based cropping system; investigations on bio-mass production, use of bio-fertilizers and agro-energetics with emphasis on recycling of crop plants, shrubs, tree residues and effective utilization of agricultural wastes; studies on integrated approach for efficient utilization of rainwater and nutrients, and contingent crop planning for rainfed areas; investigations on biological and non-chemical methods of weed control, weeds shifts in cropped and non-cropped areas, weed biology and control of obnoxious, parasitic, perennial and aquatic weeds; investigations on weather based crop management using medium range weather forecasts; assessment of soil, water, climate and crop resources using remote sensing, GIS, nuclear and other allied techniques for generation of database and resources inventories; development of soil health index and restoration of soil health for sustainable crop production; development of criteria for optimizing the use of fertilizers and water in crops and cropping systems; development and refinement of bio-fertilizer applications and management practices; identification and utilization of efficient strains of nitrogen fixing and phosphate solubilising microorganisms in relation to soil fertility and crop productivity; design and development of multi-operational powered equipment for enhancing the productivity and cost returns on small and medium farms; development of suitable environmental control systems for polyhouses in different regions of India; impact assessment of increased CO2 and temperature on crop productivity, and flora and fauna; development and refinement of crop growth simulation models for important crops; management of land and water resources and evaluation of irrigation system; technologies for watershed development; development of on-farm water management technologies. Following are the divisions under this school: