Effect of Nitrogen, Phosphorous, Potassium (NPK) Levels and Spacing on Growth and Yield of Rice (Oryza sativa L.)

Abstract

The field experiment was conducted in Khairf 2022 at the Crop Research Farm of the Department of Agronomy, SHUATS, Prayagraj (U.P.). A sandy loam texture, a pH of 7.1 that was directly neutral, a low quantity of organic carbon (0.36%), and poor availability of the nutrients n, p, and k (171.48 kg ha-1, 15.2 kg ha-1, and 232.5 kg ha-1 respectively) were every feature of the soil in the experimental plot. Over the course of a one-year trial, nine treatments including a control were evaluated. Each was reproduced three times. The findings proved that application of NPK 120:60:60 Kgha-1 + 25 × 10 cm was recorded significantly higher plant height (105.00 cm), Number of tillers/plant (18.90), Plant dry weight (38.99 g/plant), Panicles/hills (14.00), grains/Panicle (195.00), Test weight (18.32g), Panicle length (30.11), Grain yield (5.96 t ha-1), Straw yield (11.12 t ha-1), Harvest index (44.67%).