Vol. 10, Issue 4 (2022)
Residual effect of integrated weed and nutrient management on the growth and yield of zero tilled rapeseed in rice-rice-rapeseed cropping system
Author(s): Yendrembam Bebila Chanu, K Nandini Devi, Tensubam Basanta Singh, Meghna Gogoi, Y Sanatombi Devi and Priyanka Irungbam
Abstract: A field experiment was conducted during the pre-kharif, kharif and rabi season of 2017-18 and 2018-19 in the Research Farm of College of Agriculture, Central Agriculture University, Imphal in entitled, “to study the residual effect of integrated weed and nutrient management on the growth and yield of zero tilled rapeseed in rice-rice-rapeseed cropping system”. The experiment was laid out in split plot design with replicated thrice. The treatments comprised with five weed management practices in the main plot viz., (W1) pre-emergence Pyrazosulfuron ethyl 10% W.P. @ 0.025 kg a.i haˉ¹, (W2) post-emergence Bispyribac-sodium 10SC 9.5% w/w @ 0.025 kg a.i haˉ¹, (W3) pre-emergence Pyrazosulfuron ethyl 10% W.P. @ 0.025 kg a.i haˉ¹ + post-emergence Bispyribac-sodium 10SC 9.5% w/w @ 0.025 kg a.i haˉ¹, (W4) 2 Hand weeding at 25 & 45 DAS and (W5) Weedy check and four nutrient management in the sub plot viz., (N1) 100% RDF Nitrogen as urea, (N2) 75% RDF Nitrogen as urea + 25% RDF Nitrogen as Loktakphumdi compost, (N3) 50% RDF Nitrogen as urea + 50% RDF Nitrogen as Loktakphumdi compost and (N4) 100% RDF Nitrogen as Loktakphumdi compost. The pooled data revealed that among the weed management practices, application of pre-emergence (Pyrazosulfuron ethyl 10% W.P. @ 0.025 kg a.i/ha) at 5 DAS + post-emergence (Bispyribac-sodium 10SC 9.5% w/w @ 0.025 kg a.i/ha) at 20 DAS (W3) in preceding kharif rice gave the highest growth and yield attributes of rapeseed. Among the nutrient management practices, highest growth and yield of rapeseed were obtained in the application of 75% RDF nitrogen as urea + 25% RDF nitrogen as loktakphumdi compost (N2). The interaction between the integrated weed and nutrient management practices had significantly effect on the growth and yield attributes.
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How to cite this article:
Yendrembam Bebila Chanu, K Nandini Devi, Tensubam Basanta Singh, Meghna Gogoi, Y Sanatombi Devi, Priyanka Irungbam. Residual effect of integrated weed and nutrient management on the growth and yield of zero tilled rapeseed in rice-rice-rapeseed cropping system. Int J Chem Stud 2022;10(4):12-17.
