Economics of bio, organic and inorganic sources of nutrient in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system

Abstract

A field experiment was conducted during in the second week of December @ 100 kg 1987-88 and 198839 on farmers field to seedlha at a row spacing of 20 c n ~without evaluate the economic feasibility of different disturbing the 1By out in no fertilizer. All sources of nutrient in rice (Oryza sativa other recommended agronomic practices L.)-wheat (Triticum aestivum) cropping were followed. Economic analysis was done system at Bilaspur campus of the IGKVV. after taking the market values for grain and The experimental soil was neutral in re- straw of rice and wheat. Cost incurred and action (pH 6.8), low in available nitrogen net profit obtained were used to calculate (233 kgha) and phosphorus (8.8 kgha) and benefit : cost ratio. rich in available potassium (418 kglha). The higher net return of Rs. 935-1,3881 Thirteen treatment combinations of blue ha in BGA and Rs 692 I ,O59/ha in FYM green alage (BGA), farmyard manure was obtained compared with the control (FYM) and chemical fertilizers (Table 1) (Table 1). The lower cost of applied BGA were laid out in randomized block design (Rs 50lha) and FYM (Rs 230/ha) and sig- with 4 replications. Seedlings of IR, 36 nificantly higher yield of rice than in the rice, @ 2-3 were transplanted at the age of control (Rathore et al. 1995) contributed to- 26 days in the last week of July during both wards higher net profit from these inputs the years at a spacing of 20 cm x 10 cm. (Table 2). Increased net returns were ob- The FYM contained 0.6% N, 0.2% P20, tained with increasing Iertilizer levels in and 0.5% K20 on dry-weight basis was in- BGA- and FYM-treated plots because of in- corporated. 10 days before transplanting in crease in the crop yields which more than respective plots @ 5 tonneslha. Full amount compensate the cost of fertilizer. The maxi- of P and K was given during transplanting mum net return was obtained from FYMF5, in different trectments. Nitrogen was ap- followed by BGAF5, BGAF4, FYMF4 and plied in 3 equal splits, viz. at transplanting, BGAF3 treatments during 1987 -88, where- tillering - and panicle-initiation stages. as the same was recorded in BGAF4 fol- Mixed culture of BGA was applied @ 10 kg lowed by BGAF5, BGAF3, BGAF4, and crustlha, .7 days after transplanting in re- FYMF5 treatments during 1988 -89. On an spective plots. Sonalika wheat was sown average the treatments of BGAF4, BGAFS, -.:- - Present address: Department of Land and Water Management, IGKVV, Raipur, Madhya - / Pradesh 492 01 2 A part bf Ph. D. Thesis of the author Submitted to Guru Ghasi Das University, 13il;tspur. Mildhya Pradesh