Vol. 10, Issue 6 (2021)

Author(s):
VV Patil, AV Solanke, YM Gagare and RV Tayade

Abstract:
A field investigation on “Nutrient management for organic cotton (Gossypium arboreum L.) Production” was carried out at All India Coordinated Research Project, Cotton Improvement Project, Research Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar, Maharashtra (India) during kharif season of 2017 and 2018. The experiment was carried on the same site and same randomization of treatments during both the years. The result indicated that the important morphological traits of desi cotton such as plant height (cm), number of leaves plant^-1, leaf area plant^-1 (dm²), number of monopodial branches plant^-1, number of sympodial branches plant^-1, number of squares plant^-1, dry matter plant^-1 (g) were recorded significantly higher with application of fertilizer through inorganic 80:40:40 N, P and K kg ha^-1 to cotton. Whereas, among the organic nutrient sources application of nutrient through FYM based on P equivalent basis recorded maximum growth attributes followed by seed treatment with Azotobactor + PSB + soil application of Azotobactor and PSB + foliar application of PPFM (1% Spray) + seed treatment with (Azotobactor + PSB) + soil application of Azotobactor + PSB) and foliar application of PPFM (1% spray at 45 and 65 DAS) + neemcake 250 kg ha^-1 + raising of sunnhemp between two rows (1:1) and incorporation in soil at flowering stage during both the years. Significantly lower all the growth parameters were recorded in absolute control during both the years.