Effects of Integrated Soil Fertility Management on Sustainable Crop Production

Maintenance of soil fertility at the economically optimal level with appropriate source of fertilizers combination is essential for sustainable crop production. Hence, different soil fertility amendment options have been done with different fertilizers sources. Application of biogas and NP fertilizer rate ware among the amendment practices considered for both sole and inter cropping system. Application of biogas slurry significantly increased mean grain yield of maize. Sole application of biogas slurry at higher rate improved soil structure, maintained and increased the nutrient reserves of the soil .Grain yield of maize –haricot been inter cropping system were significantly increased with application of each and integrated use of NP fertilizers and farm yard manure. Integrated application had a significant change in ameliorating soil fertility. Interaction of N-P and FYM fertilizers significantly increased grain yield components of the crops. Higher grain yields of maize and climbing been was obtained from sole cropping compared to inter cropping. Integrated use of N-P and farm yard manure fertilizers was offer sustainable production of maize climbing been inter cropping system. Higher mean grain yield of fababean and field pean were from none rhizobium strain treated compared to the treated one indicating presence effective strains in soils of the area both legumes produces for many years. Keywords: Biogas slurry, NP fertilizer, FYM