Influence of different source of organic manure on microbial activity nutrient uptake and yield of rice

Abstract

Present experiment entitled “Influence of Different Source of Organic Manure on Soil Quality and Production of Rice’’ was carried out during Kharif season of 2017 at the Instructional Farm of Indira Gandhi Krishi Vishwavidyalaya (IGKV), Raipur. The experiment was carried out in RBD design with treatment effect within crop (season) with 4 replications having treatments: T1- 100% N through city compost, T2- 75% N through city compost, T3- 100% N through vermicompost, T4- 75% N through vermicompost, T5- 100% N through Industrial waste-1, T-6 75% N through Industrial waste-1, T-7 100% N through Industrial waste-2, T-8 75% N through Industrial waste-2, T-9 100% N through FYM and T-10 75% N through FYM. A medium duration scented rice variety “Tarun Bhog” was taken as test crops. Microbial activity in Dehydrogenase (TPF/g soil/24hr), Urease (ug NH4+/g soil/hr) and SMBC (soil microbial biomass carbon),(mg Kg-1) in soil were noticed markedly highest in soil applied with T5- 100% N through Industrial waste-1. The test weight of 1000 grain (13.5 g) and rice grain yield (4293 kg/ha) and straw yield (6075 Kg/ha) was found highest in T5- 100% N through Industrial waste-1. Nutrient uptake in grain, straw and total nitrogen was noticed significantly higher with treatment T5- 100% N through Industrial waste-1. Aroma was found medium in all the treatments.