Studies on integrated nutrient management on growth and productivity of Indian mustard (Brassica juncea) in high altitude range of Himalaya
STUDIES ON INM ON GROWTH AND PRODUCTIVITY OF INDIAN MUSTARD
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Authors
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DHIMAN MUKHERJEE
Regional Research Station, Uttar Banga Krishi Viswavidyalaya, Darjeeling-734301, West Bengal
Keywords:
Economics, Farm Yard Manure, Mustard, PhosphorousAbstract
Field investigations were carried out during the winter season of 2010-11 and 2011-12 at Lava (1850 m asl), under the aegis of Uttar Banga Krishi Viswavidayalaya, to evaluate the effect of different FYM and phosphorous levels on growth, yield and economics of Indian mustard [Brassica juncea (L.) Czern & Coss.] at high altitude. The field experiment consisted of four FYM levels (0, 10, 20 and 30 t/ha) in main plot and four phosphorous levels (0, 20, 40 and 60 kg P2O5 /ha) in subplot. Higher plant height and other growth parameters were registered with FYM @ 20t/ha, and was followed by FYM @10 t/ha. Amongst different levels of phosphorus, application of 60 kg P2O5 /ha registered significantly higher growth parameters and was at par with 40 kg/ha at 60 DAS and statically superior to other levels of P application. All the yield attributing characters were statistically influenced by different treatment combinations. Significantly higher seed yield was obtained with FYM @ 20t/ha (2.0 and 1.9 t/ha) and was statisticallyat par with FYM @ 10t/ha (1.8 and 1.9 t/ha) during 2010-11 and 2011-12, respectively. Amongst various subplot treatment highest seed yield during the first year was associated with the application of P2O5 @ 40 kg/ha (2.1 t/ha) and significantly better to other level of phosphorous. However during the second year higher seed yield was registered with 40 kg P2O5 /ha (1.9 t/ha), and was statistically similar with 60 kg P2O5/ha (1.8 t/ha) and 20 kg/ha (1.7 t/ha). Application of P2O5 @ 40 kg/ha resulted in 140.7% higher seed yield over no phosphorous application. Incorporation of FYM @ 20 t/ha registered 74.0% more stover yield compared to no FYM application. With various phosphorous doses, higher yield was registered with the application of 40 kg P2O5 /ha which was at par with 60 kg P2O5 /ha during both the year of experimentation. Application of FYM @ 20 t/ha gave maximum gross returns (` 19380/ha) and higher benefit: cost ratio (1.9). Higher benefit: cost ratio (1.90) was recorded with the application of P2O5 @ 60 kg/ha with net return of ` 18470/ha.
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References
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