Vol. 10, Issue 1 (2021)

Author(s):
Sudarshan M Shende, Nanasaheb S Ghule, Asha V Satpute and Tejashree S Shinde

Abstract:
The agronomic investigation was undertaken at Post Graduate Research Farm, Agronomy Section of Rajarshee Chhatrapati Shahu Maharaj College of Agriculture, Kolhapur (M.S.), India during kharif, 2019. The experiment was laid out in a split plot design with four replications and nine treatment combinations comprising of three varieties of rice V₁- Indrayani, V₂- Phule Radha and V₃- Bhogawati as main plot treatments and three fertilizer levels F₁- 75% RDF, F₂- 100% RDF and F₃- 125% RDF as sub plot treatments on sandy clay loam soil. The variety Indrayani had the higher grain yield (59.50 q ha^-1), straw yield (86.75 q ha^-1) and harvest index (40.62%) which were statistically at par with Bhogawati and superior over Phule Radha. Grain yield (58.83 q ha^-1), straw yield (87.73 q ha^-1) and harvest index (40.06%) were also significantly maximum with the application of 125% RDF ha^-1 which was at par with application of 100% RDF ha^-1 and significantly superior over 75% RDF ha^-1. The effect of interaction between rice varieties and fertilizer levels were significantly influenced the yield attributing characters. The rice variety Indrayani when applied with 125% RDF ha^-1 exhibited significantly superior grain yield (64.62 q ha^-1), straw yield (92.25 q ha^-1) and harvest index (41.18%) over rest of all the remaining interaction combinations. The content of N, P and K in grain were (1.24%, 0.31% & 0.14%) and straw (0.78%, 0.19% & 1.49%) respectively, total uptake of nutrients were (142.66, 35.85 & 138.56 NPK kg ha^-1) respectively by rice crop were found significantly maximum with the variety Indrayani followed by Bhogawati and which was superior over Phule Radha. Available N, P and K were (268.09, 36.42 & 277.17 NPK kg ha^-1) respectively in soil after harvest was found significantly maximum with the variety Phule Radha followed by Bhogawati which was superior over Indrayani. The content of N, P and K in grain were (1.29%, 0.31% & 0.14%) and straw (0.79%, 0.20% & 1.49%) respectively, total uptake of nutrients were (146.35, 36.85 & 140.19 NPK kg ha^-1) respectively by rice crop and available N, P and K were (267.24, 37.22 & 289.91 NPK kg ha^-1) respectively in soil after harvest were found significantly maximum with the application of 125% RDF ha^-1 which was at par with application of 100% RDF ha^-1 and significantly superior over 75% RDF ha^-1.