Vol. 19 No. 1
Effect of organic manure and neemastra on growth and yield of Indian mustard varieties in lower gangetic plains of West Bengal
Author(s): S. PATI, S. BANERJEE, M. GHOSH, P. DEBNATH AND S. DOLUI
Abstract: A field experiment was conducted in split split-plot design replicated thrice during rabi season of 2017-2018 to study the effect of organic manure and neemastra on growth and yield of Indian mustard varieties. The application of bulky organic manures [FYM @ 6 t ha-1 (N2), Vermicompost @ 2 t ha-1 (N3), and FYM @ 3 t ha-1 + Vermicompost @ 1 t ha-1(N4)] with foliar spray of Panchagavya recorded significantly higher growth attributes viz. plant height, dry matter yield and CGR over liquid manure only (3% Panchagavya) [N1]. Based on seed yield, the nutritional treatments could be arranged as: N2 (11.19 q ha-1) > N4 (10.62 q ha-1) > N3 (9.92 q ha-1) > N1 (8.90 q ha-1). Sarama produced higher seed yield (10.57 q ha-1) due to significant improvement in number of siliquae plant-1 (116.9) and number of seeds siliqua-1 (13.8) compared to Bhagirathi (9.79 q ha-1). The combined application of FYM and Panchagavya led to the highest oil content (35.3%) and net income (₹ 19,676 ha-1) compared to other nutritional treatments. Neemastra as botanical insecticide was found effective to control aphid upto 1 week after respective three foliar sprays at 3, 6 and 9 WAS, in the study.
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