Assessment of long term fertilization and manuring on rice productivity in Vertisol

Abstract

The present experiment was conducted during kharif season 2017 at the Instructional Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh. The experiment was laid out in RBD plot design with 10 treatments. Long-term fertilization experiment with a no fertilizer control, 50% NPK, 100% NPK, 150% NPK, 100% NPK+Zn, 100% NP, 100% N, 100% NPK+FYM, 50% NPK+BGA and 50% NPK+GM. Treatments were replicated thrice. The different integrated nutrient management treatments, application of 150 % NPK showed significantly higher plant height and number of leaves as compared to rest of the treatments at 30, 60 and 90 DAT and at harvest. Panicle length, number of grain, test weight, grain and straw yield significantly higher under 150% NPK treatment and number of tillers and number of effective tillers higher in 100% NPK +FYM treatment, sterility was higher under 100 % alone N treatment.