Author(s):

Suvra Pattanaik, Ram Pyare and Uday Pratap Singh

Abstract: An experiment was carried out at the Student’s Instructional Farm (SIF) of Chandra Sekhar Azad University of Agriculture and Technology, Kanpur during kharif season of 2019 to find out “Effect of in-situ green manuring and nitrogen levels on growth and yield of maize (Zea mays L.)” The experiment comprises of twelve treatments i.e. control (No green manure and no nitrogen), no green manure+ 100kg N/ha, no green manure+ 150kg N/ha, no green manure+ 225kg N/ha, maize sown after in situ green manuring + 0 kg N/ha, maize sown after in situ green manuring + 100 kg N/ha, maize sown after in situ green manuring + 150 kg N/ha & maize sown after in situ green manuring + 225 kg N/ha, maize sown into standing dhaincha + 0kg N/ha, maize sown into standing dhaincha + 100kg N/ha, maize sown into standing dhaincha +150kg N/ha & maize sown into standing dhaincha + 225kg N/ha and laid out in a Randomized Block Design with three replications. The soil of the experimental plot was sandy loam in texture with Ph 7.7 & EC of 0.30 ds/m at 25°C. It contained 0.47% organic carbon. Result showed that the plots where maize was sown after incorporation of green manure and with the supply of 150 kg N/ha promoted significantly the growth and yield attributes of the maize crop compared to all remaining treatments. The treatment of maize sown after in-situ green manuring has done and at a dose of 150 kg N/ha observed significantly higher plant height (289.30 cm), accumulation of plant dry matter significantly higher at 150kg N/ha (17774.94kg/ha) and at 225kg/ha, an yield of 82.54 q/ha which is non significantly higher than 150kg N/ha (81.92q/ha) over other treatments.

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