Effect of integrated nutrient-management practices on improvement in grain quality of soybean (Glycine max), sorghum (Sorghum bicolor) and wheat (Triticum aestivum) in multiple cropping systems in Vertisol

2003

A:PS

A field experiment was conducted during 2000 and 2001 in Bhopal, Madhya Pradesh, India, to explore the possibility of increasing oil yield and nutritionally superior quality grains as affected by integrated nutrient management under 3 cropping systems, i.e. soyabean (G. max)-wheat (T. aestivum), sorghum (S. bicolor)-wheat and soyabean-sorghum-wheat. Six nutrient management treatments were applied to each cropping system: 0 (control), 75% recommended NPK, 100% NPK, 75% NPK+farmyard manure (FYM) at 5 tonnes/ha, 75% NPK+phosphocompost (PC) at 5 tonnes/ha, and 75% NPK+poultry manure (PM) at 1.5 tonnes/ha. Among different combinations of organic and inorganic, application of 75% NPK+5 tonnes FYM/ha recorded the highest protein (34.93%), oil yield (17.87%) and mineral content (4.93%) in soyabean, and the highest protein (9.90%) and mineral (1.66%) contents were obtained in sorghum, both in intercropping as well as in sole cropping, though these were at par with other organically treated plots and 100% NPK-treated plot. Intercropping system as such had no effect on nutritional quality in both soyabean and sorghum. However, wheat grains produced under legume-cereal cropping system (soyabean-wheat) accumulated higher carbohydrates (71.8%), proteins (12.2%), methionine (1.48 g/16 gN) and tryptophan (1.37 g/16 gN) compared to grains produced under cereal-cereal cropping system (sorghum-wheat).

v.73(2):65-68, INDIAN JOURNAL OF AGRICULTURAL SCIENCES

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