Author: G. Poovizhi Sindhu*, D. Jawahar, T. Chitdeshwari, P. Jeyakumar and D. Jeya Sundara Sharmila
Rice is one of the leading food crops in the world and the main staple food in India that plays important role in agricultural and economic level. Silicon (Si) is the most abundant element in the earth's crust and improves the erectness of leaves and allows higher light transmittance in and above plant canopies and thus improves photosynthesis. The present study is conducted with interaction of N × Si to increase the productivity potentials in rice genotype. A pot experiment was conducted at glasshouse, TNAU, Coimbatore to assess the response of nitrogen and silica on growth and yield traits of paddy. The treatments comprised of the two factors, Nitrogen and Silica with three replications. The growth parameter likes plant height, number of tillers per plant and total dry matter production were recorded at various stages and yield traits were recorded at harvest stage. Plant height, number of tillers and total dry matter production were higher in N2S2. The highest grain and straw yield
Nitrogen, urea, silica, calcium silicate, grain yield and straw yield.
The findings suggested that 150 kg ha-1 of Urea and 200 kg ha-1 of calcium silicate boosted rice yield and yield attributes in this study. Urea and calcium silicate showed substantial increment in grain and straw yield over the control. Grain and straw yield were positively correlated with plant height, number of tillers per plant and total dry matter production in paddy. From this study, it can be concluded that the combined fertilization of different levels of urea and silicon significantly improved the rice productivity through improved growth attributes.
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Sindhu, G. P.; Jawahar, D.; Chidteshwari, T.; Jeyakumar, P. and Sharmila, D. J. S. (2022). Response of Nitrogen and Silica on Growth and Yield of Paddy (Oryza sativa L.) Variety Improved White Ponni. Biological Forum – An International Journal, 14(1):