Vol. 8 No. 2
Irrigation and nutrient management for yield augmentation of summer sesame (Sesamum indicum L.)
Abstract: A field experiment was conducted during summer seasons of 2010 and 2011 at Bhubaneswar in a sandy loam soil to study the response of sesame to irrigation and nutrient management practices. Four levels of irrigation viz., IW/CPE - 0.6, 0.8, 1.0 and 1.2 were allotted to the main plots and four fertility levels viz., 60+13.2+25 kg N+P+K ha-1 (RDF), 30+6.6+12.5 Kg N+P+K ha-1 (50% RDF), 30+6.6+12.5 kg N+P+K ha-1 with 5 t ha-1 FYM, and 5 t FYM ha-1 alone to the sub plots in a split plot design with three replications. Yield attributes were higher for IW/CPE of 1.0 resulting in higher seed (808 kg ha-1) and oil (407 kg ha-1) yields and net returns (Rs.4258 ha-1) with consumptive use of 51.8 cm and water use efficiency of 15.7 kg/ha-cm. Integrated nutrition i.e. 50% RDF+5 t FYM ha-1 expressed better growth and yield attributes with the highest seed (874 kg ha-1) and oil (437 kg ha-1) yields, net return (Rs.4659 ha-1), consumptive use (53.6 cm) and water use efficiency (16.3 kg/ha-cm) and nutrient uptake (29.6 kg N, 11.2 kg P and 29.9 kg K ha-1). The crop irrigated at IW/CPE of 1.0 and supplied with 50% RDF+5 t FYM ha-1 produced maximum seed
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