Effect of organic manures, biofertilizers and biopesticides on productivity of summer groundnut (Arachis hypogeae L.) in red and laterite zone of west bengal
2012
Gunri, S.K. | Nath, R.
A field experiment was conducted during summer season of 2006 and 2007 at All India Co-ordinated Research Project on Groundnut, Bidhan Chandra Krishi Viswavidyalaya, Regional Research Station, Jhargram, Paschim Medinipur to find out the effect of organic manures, biofertilizers and biopesticides on productivity of summer groundnut in red and laterite zone of West Bengal. The plant nodule number and nodule weight increased with the age of the crop and highest was recorded at 60 DAS when biofertilizer consortium was used with 10 t/ha of FYM (28.9 and 36.4 mg respectively). The significantly higher pod/plant and shelling out turn was recorded when recommended dose of fertilizer was applied along with 10t/ha of FYM or 5t/ha of poultry manure as compared to other treatments. The hundred kernel weight did not exhibit any significant differences among the treatments. The application of bio-fertilizer and or bio-pesticide along with organic manure to groundnut had the significant influence to increase the groundnut yield. The significantly highest pod yield (3272kg/ha) were obtained when farm yard manure @ 10t/ha (T9) or poultry manure @ 5t/ha in treatment T8 (3251 kg/ha) along with recommended dose of fertilizer was applied to groundnut. The maximum gross return (Rs.66494/ha) and net return (Rs.46356/ha) was recorded when farm yard manure@10t/ha along with recommended dose of inorganic fertilizer was applied. The highest B:C ratio (3.50) was recorded in inorganic fertilizer treated control.
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