Vol. 6, Special Issue 1 (2017)
Synchronizing nitrogen and potassium supply with crop demand to augment growth, productivity and economics of Bt. Cotton hybrid (NSPL-999)
Author(s): MS Shah, Nidhi Verma, ML Kewat and Anjum Ahmad
Abstract: A field experiment was conducted to assess N and NK split application synchronize with crop demand. Eight timings of application and two different dose of N and NK both were taken as different treatments. Timings were planned to supply the fertilizer at different crop growth stages i e., at 10, 30, 45, 60 and 75 DAS. Split application of N and NK did not have any significant effect on plant height, monopodia per plant, sympodia per plant, boll per plant, boll weight, and Ginning Percentage. Bolls per plant was significantly increased with N120K40 Rs/ha. Split application as well as, 03 split application (10, 30 & 60 DAS). The seed cotton yield did not deviate significantly due to split-cum-basal fertilizer application; however timings of 03 split application of fertilizers(10, 30 & 60 DAS) resulted in significant changes in this productivity parameter. Significantly more, net income from N120K40 was only Rs. 2884/ha. Over N120 split application. Amongst the timing of split application, three splits application either 10, 30 and 60 or 10, 45 & 60 DAS proved significantly superior than remaining treatments, Seed cotton yield ranged from 21.15 to 21.19 q/ha with extra net income from Rs. 6109 to Rs. 6205 / ha under 03 split (either 10, 45 & 60 or 10, 30 & 60 DAS) over 2 split application (10 & 45 DAS).
How to cite this article:
MS Shah, Nidhi Verma, ML Kewat and Anjum Ahmad. Synchronizing nitrogen and potassium supply with crop demand to augment growth, productivity and economics of Bt. Cotton hybrid (NSPL-999). 2017; 6(6S): 634-637.