Effect of phosphorus management on growth, yield attributes and yields of basmati rice (Oryza sativa L.)

Abstract

A field experiment was conducted Crop Research Centre of S.V.P. University of Agriculture and Technology, Meerut (U.P.) to Effect of phosphorus management on growth and yield attributes characters of basmati rice (Oryza sativa L.) during kharif season of 2022. The soil of the experimental field was well drained sandy loam in texture. The tested in completely Randomized Block Design (CRBD) with three replications. The rice variety Pusa basmati 1121. Results obtained from the study growth parameter revealed that plant height (cm), numbers of tillers (m-2), leaf area index, dry matter accumulation (g m-2), relative growth rate (g/g/day), Effective tillers m-2, Panicle length (cm), Test weight (g), grain yield (q ha-1) and straw yield (q ha-1) in rice were significantly superior with the application of N100P30K40 + Root dipping with 2% DAP + Foliar application of 2% Nano DAP at MT & PI stage as compared to T1 of the treatments. However, the grain yield under T10 was 44.1% higher than T3 (N100P0K40). The application of N100P30K40 + Root dipping with 2% DAP + Foliar application of 2% Nano DAP at MT & PI stage (T10) incurred highest gross return (Rs-116584) and net returns 60588 ha-1 gross respectively. Besides, the highest B:C ratio (2.08) was also recorded with the application of N100P30K40 + Root dipping with 2% DAP + Foliar application of 2% Nano DAP at MT & PI stage. Nano urea fertilizers significantly improved the plant growth performance and imparted sustainability to crop production with comprising the crop yield