Carryover Effect of Green Manure, FYM and N-Fertilization on the Succeeding Wheat in Rice-wheat Cropping System
Harpreet Singh
Punjab Agricultural University, Regional Research Station, Gurdaspur, Punjab, India.
Singh R.
Punjab Agricultural University, Regional Research Station, Gurdaspur, Punjab, India.
Manhas S. S. *
Punjab Agricultural University, Regional Research Station, Gurdaspur, Punjab, India.
*Author to whom correspondence should be addressed.
Abstract
The present study was carried out Punjab Agricultural University, Regional Research Station, Gurdaspur, Punjab (India) during 2020-21 and 2021-22. The experiment was laid out in split-split plot design with three factors. Main plots contain three organic fertilizers treatments, sub plot contains three nitrogen levels and sub-sub plots contain three nitrogen application stage. Plant height of succeeding wheat crop grown after basmati rice was affected non-significantly by organic fertilizers and chemical fertilizers applied to basmati rice during both the years. The number of tillers and dry matter accumulation significant affected during both the years. Greater values were obtained with FYM application @ 15 t ha-1 which was significantly similar to green manuring but significantly higher than control during both the years. The various nitrogen doses and nitrogen application stages failed to significantly influence number of tillers and dry matter accumulation of succeeding wheat crop. In case of number of effective tillers and grains per spike, the maximum values were obtained with FYM. It was at par with green manuring but significantly higher than. The nitrogen doses and nitrogen application stages had non-significant effect on both these parameters. The organic fertilizers had statistical significant effect on straw and grain yield of wheat crop. The highest straw and grain yields were obtained with application of FYM @ 15 t ha-1 which was significantly higher than control but statistically at par with green manuring during both the years. The harvest index was non-significant for all the treatments. The total NPK uptake in wheat was significantly affected by the organic fertilizers. Highest uptake of NPK in grain and straw was observed with FYM application which was at par with green manuring but significantly higher than control during both the years.
Keywords: Sunnhemp, FYM @15 t ha-1, nitrogen, succeeding, wheat
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References
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