Influence of Long-term Application of Fertilizers and Manure on Growth, Yield Attributes and Yield of Wheat

Abstract

A fertilizer experiment was conducted on wheat (GW 366) during Rabi session 2020-21 and 2021-22 under all India Coordinative Research Project on Long Term Fertilizer Experiment at College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, to study the effect of long-term application of fertilizers and manure on growth, yield attributes and yield of wheat. Eight treatments comprised of T1 (50% NPK), T2 (100% NPK), T3 (150% NPK), T4 (100% NP), T5 (100% N), T6 (100% NPK + FYM), T7 (100% NPK - S) and T8 (Control) were replicated four times in a randomized block design. The application of 50% NPK, 100% NPK and 150% NPK successively and significantly increased plant height, number of tillers plant-1, number of effective tillers plant-1, number of grains spike-1 and grain yield. While the test weight and straw yield at 150% NPK was found significantly superior to 50% NPK but it was found at par with 100% NPK in both the cases. The application of 100% NPK was found significant over 100% NPK - S for grain yield. The application of 100% NPK + FYM significantly increased the plant height, number of tillers plant-1, number of effective tillers plant-1, number of grains spike-1, test weight, grain and straw yield over 100% NPK, 100% NPK - S, 100% NP and 100% N, but it was found at par with 150% NPK for all the growth and yield attributes. Growth and yield attributes were found significantly and positively correlated with grain and straw yield of wheat.