A field experiment was conducted during the rainy (kharif) seasons of 2020 and 2021 at the Research Farm of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, Uttar Pradesh, to evaluate integrated nutrient management in transplanted basmati rice. Ten treatments comprising graded levels of the recommended dose of NPK fertiliser, pressmud, vermicompost, and NPK-solubilising microbial consortia were evaluated in a split-plot design with three replications. Plant height, tiller number, dry matter accumulation, yield attributes, grain and straw yields, biological yield, and harvest index were recorded. The application of 125% of the recommended NPK dose produced the highest plant height at harvest (116.2 cm), number of tillers at harvest (262 m⁻²), dry matter accumulation at harvest (1,101.4 g m⁻²), panicle length (26.5 cm), filled grains per panicle (84), grain yield (46.1 q ha⁻¹), straw yield (63.8 q ha⁻¹), biological yield (109.9 q ha⁻¹), and harvest index (41.9%). The control recorded the lowest grain yield (22.4 q ha⁻¹) and biological yield (69.8 q ha⁻¹). However, 75% NPK + pressmud at 1.5 t ha⁻¹ + NPK consortia and 100% NPK + NPK consortia produced statistically comparable values to 125% NPK for most growth and yield parameters. These findings indicate that combining mineral fertiliser with organic and microbial inputs can maintain competitive crop performance while reducing reliance on fertiliser application above the recommended dose.
A. Raj, Vivek, Ankita Gautam et al.· Journal of Experimental Agri...· 0 citations
A field experiment was conducted during the kharif seasons of 2024 and 2025 at the Experimental Farm, Department of Agronomy, School of Agricultural Sciences, Hapur, Uttar Pradesh, to evaluate the effects of different nitrogen and silicon levels on the yield attributes and yield of rice (Oryza sativa L.). The experiment was laid out in a Randomised Block Design with three replications and comprised nine treatment combinations involving the recommended dose of fertilisers (RDF) and varying levels of silicon applied through broadcasting and foliar application. The results showed that silicon application significantly influenced the yield attributes and yield of rice. Among the treatments, RDF combined with 120 kg Si ha⁻¹ through broadcasting (T₅) recorded the highest number of panicles (286.78 m⁻²), panicle length (26.08 cm), grains per panicle (83.06), and test weight (26.18 g). The same treatment also produced the maximum grain yield (5365.44 kg ha⁻¹), straw yield (7759.62 kg ha⁻¹), and harvest index (42.76%), which were significantly superior to the other treatments. The improvement in yield and yield attributes may be attributed to enhanced nutrient uptake, increased photosynthetic efficiency, better grain filling, and improved assimilate translocation under silicon application. The study indicated that the combined application of RDF and 120 kg Si ha⁻¹ through broadcasting is an effective nutrient management strategy for maximising rice productivity under the agro-climatic conditions of western Uttar Pradesh.
Katharotiya Kevin Kishorbhai, Chandan Kumar, R. Singh et al.· Asian Research Journal of Ag...· 0 citations
