Effect of resource conservation technologies on growth and yield of rice under transplanted condition

Abstract

The present study entitled “Effect of resource conservation technologies (RCTs) on growth and yield of rice under transplanted condition” was conducted during Kharif season in 2018-19 at the research farm of National Rice Research Institute, Cuttack, Odisha with rice variety Pooja. The experiment was laid out in Randomized complete block design (RBD) with seven treatments and three replications in transplanted condition of rice (TPR). The treatments under TPR followed: T1- control (no N), T2- conventional transplanting (CT)+100% RDF-N, T3- residue incorporation (RI)+75% RDF-N, T4- green manuring (GM) +75% RDF-N, T5- zero tillage transplanting (ZT)+100% RDF-N, T6- mechanical transplanting (McT)+100% RDF-N, T7- McT+ 100% RDF-N+ Customized leaf colour chart (CLCC). Results indicated a significant effect of different RCTs on growth and yield parameters of TPR. Effect of ZT+100% RDF-N was found significantly higher on plant height (cm) and leaf chlorophyll content (SPAD value) than other treatments in TPR. Effect of McT+100% RDF-N+CLCC in TPR was found significantly higher on number of tillers per hill, number of leaves per hill, dry root weight (g) per hill and leaf area index (LAI). Dry matter accumulation (g m-2) was influenced significantly by GM+75% RDF-N in TPR, as compared to other treatments. Yield attributing characters and grain and straw yield was recorded highest in McT+100% RDF-N+CLCC in TPR.