Vol. 7, Issue 4 (2019)
Response of cotton to site specific nutrient management (SSNM) in Vertisols of TBP command of Karnataka
Author(s): PS Pyati, BM Chittapur, AS Halepyati, UK Shanwad, SN Bhat and MR Umesh
Abstract: A field study was conducted to identify critical nutrient and realization of target yield through site specific nutrient management (SSNM) comprising of five treatments viz., SSNM for target yield of 4 t ha-1, N-omission, P-omission, K-omission and farmers’ practice was carried out at farmers’ fields on participatory mode during 2015-16. Results of the study revealed that yield target 4384 kg ha-1 was comfortably achieved with SSNM (332.8-78.4-106.4 kg N-P2O5-K2O kg ha-1, respectively while N omission followed (3597 kg ha-1) by K omission (3655 kg ha-1) had significantly lower yields among all due to reduced major nutrient uptake than with SSNM. Likely, SSNM had favorable residual soil fertility than with nutrient omission. Significantly higher N, P and K uptake (284, 26 and 222 kg ha-1 respectively) was observed in SSNM (4 t ha-1) treatment which was supplied with NPK. N is the most critical element followed by K for higher and sustainable cotton production and soil productivity.
Pages: 1460-1463 | 257 Views 45 Downloads
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How to cite this article:
PS Pyati, BM Chittapur, AS Halepyati, UK Shanwad, SN Bhat, MR Umesh. Response of cotton to site specific nutrient management (SSNM) in Vertisols of TBP command of Karnataka. Int J Chem Stud 2019;7(4):1460-1463.
