Evaluate the effect of SSNM on yield and yield attributing parameters of rice in vertisol

Abstract

A field experiment was carried out during the kharif season (June–October) of 2016 at the Research Farm of the Indira Gandhi Agricultural University, Raipur (C.G.), India to study the “Evaluate the effect of SSNM on yield and yield attributing parameters of rice in vertisol”. The experiment was laid out in a Randomized block design with three replications and eight treatments namely i.e. RDF(100:60:40:5 NPK and Zn kg ha-1), SSNM based on nutrient expert (120:60:60:5, NPK &Zn kg ha-1), SSNM based on leaf color chart (60:60:60:5, NPK& Zn kg ha-1, rest 50% N based on LCC), SSNM-N, SSNM-P, SSNM-K, Control (N0, P0, K0) and Farmer Fertilizer Practices (N80, P40, K0). The results obtained in this study showed that the T2-SSNM based on nutrient expert performed significantly better than the other treatments for yield attributing characters viz. number of tillers 400, number of panicle 350, panicle length 24.30 cm, filled grain per panicle 145, test weight of 1000 seeds of rice 28.8gm, grain yield 50.2q ha-1 and straw yield 82.8q ha-1 and lowest was found under control treatments at harvest stage of rice. SSNM Treatment based on nutrient expert (NE) recommendations proved superiority over applied different treatments on yield involved balance removal as required by rice as well sustaining soil available nutrient status.