Vol. 12, Issue 2 (2023)

Author(s):
Pragya Tiwari, Dinesh Pandey and RKS Tiwari

Abstract:
A field experiment was conducted at Instructional cum Research Farm, Barrister Thakur Chhedilal College of Agriculture and Research Station, IGKV, Bilaspur, (C.G.). During Kharif 2020 with a view to study the “Effect of organic manures and fertilizer on available NPK of scented rice (Oryza sativa L.)”. The rice variety Vishnubhog was used to grown and treatment was replicated three times in randomized block design (RBD). The soil of experimental field was clay loam soil. There were fertilizer application nitrogen, phosphorus and potassium and Manures application Recommended amount of compost, cow dunk, green leaf manure (GLM) and rock phosphate were applied at different concentrations in rice in nine treatment viz., T₁: -100% RDN through Compost, T₂:- 100% RDN through Green leaf manure, T₃:- Decomposed cow dung enriched with rock phosphate amendment (7.59 q/ha), T₄:- 100% RDN through Compost + Decomposed cow dung enriched with rock phosphate amendment (7.59 q/ha^-1), T₅:- 100% RDN through green leaf manure + Decomposed cow dung enriched with rock phosphate amendment (7.59 q/ha^-1), T₆:- 100% RDN through FYM enriched with consortia, T₇:- Decomposed cow dung enriched with rock phosphate @ (12 q/ha^-1), T₈:- 100% RDF 60:40:30 kg NPK ha^-1 and T₉:- Control (No NPK). Inorganic fertilizer level of 100% RDF (60:40:30) kg NPK ha^-1 was found to be equally effective for available N, P and K status in soil. The available P and K under these treatments were at par to that of inorganic fertilizer level of 100% RDN through green leaf manure + Decomposed cow dung enriched with rock phosphate amendment (7.59q ha^-1) (T₅). Blending of fertilizer with organics improved or sustained the soil PH, organic carbon (C) and available N, P and K of the soil.