Vol. 7, Special Issue 6 (2019)
Influence of weed management practices on dry matter accumulation and crop growth rate of transplanted rice (Oryza sativa)
Author(s): Sunita Kumari and Deeba Hassan
Abstract: An OFT (on farm trial) entitled “Influence of weed management practices on dry matter accumulation and crop growth rate of transplanted rice (Oryza stiva)†was conducted on KVK, Vaishali, Dr.RPCAU, Pusa, Samstipur in two consecutive kharif seasons of years 2015 and 2016 on selected five farmers’ field with 6 treatments. The soil was sandy loam to loam, young alluvial calcarious in nature with mean pH 8.16, mean EC 0.11, low in available N (mean value 177.01 kg/ha), medium in P (mean value 13.80 kg/ha) & K (mean value 137.28kg/ha) and low in organic carbon (mean value 0.47%). The experiment was conducted in Randomized Block Design (RBD). Mean data of two years experimentation indicated that the application of various weed management practices significantly increased dry matter accumulation on 30 DAT, 60 DAT, 90 DAT and at maturity as well as its crop growth rate of rice at different stages. Among all treatments, application of bispyribac- sodium @ 25 g ai/ha resulted in higher dry matter accumulation on 30 DAT (237.85 g/m 2), 60 DAT (494.35 g/m 2), 90 DAT (897.25 g/m 2) and at maturity (1076.95 g/m 2) which was superior to rest of the treatments. The highest crop growth rate during 30-60 DAT, 60-90 DAT and 90 DAT–Maturity was recorded with bispyribac- sodium and minimum with weedy check. Two year study indicates that the application of bispyribac- sodium 25 g ai/ha was the best for higher crop growth rate and yield from rice
Pages: 316-318 | 429 Views 42 Downloads
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How to cite this article:
Sunita Kumari and Deeba Hassan. Influence of weed management practices on dry matter accumulation and crop growth rate of transplanted rice (Oryza sativa). International Journal of Chemical Studies. 2019; 7(6): 316-318.
