Influence of integrated nutrient management on the growth, yield and economics of sweet corn (Zea mays saccharata) in spring seasonPantnagar Journal of Research, Volume - 17, Issue - 3 ( September-December, 2019)
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A field experiment was conducted at G.B. Pant University of Agriculture and Technology, Pantnagar to study the response of sweet corn (Zea mays L. saccharata) to different levels of FYM and nutrients. The experiment consisting of 4 levels of FYM (0, 5, 10 and 15 t/ha) and 4 doses of nutrients (50, 75, 100 and 125% recommended NPK) was laid out in factorial RBD with three replications. Results revealed that plant growth in terms of height, leaf area and shoot dry matter accumulation increased significantly with increase in FYM and nutrient levels. Crop nourished with FYM showed significant improvement in yield attributes viz. cob length and cob girth, cob yield and net return but did not respond beyond 5 t/ha. The increase in husked and dehusked cob yields under 5t/ha FYM was 13.5 and 17.6%, respectively over no use of FYM. An increase in nutrient level from 50 to 125% resulted into significant improvement in cob yield up to 100% recommended dose of nutrients. The yield advantage under 100 % NPK over 50 and 75% was 35.8 and 8.4% for husked and 36.4 and 11.0% for dehusked cob yields, respectively. Application of 5 t FYM/ha and 100% recommended dose of nutrients was economically viable as these recorded significantly more net return.
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