Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bangal-741252
1Present address: Regional Research Station, OUAT, Chiplima 768 025.
2Agricultural Research Station, OUAT, Berhampur 761 001.
A field experiment with post-flowering spraying of nutrient solutions (KNO3 0.5% Ca (NO3)2 0.5% and urea 2.0%) at 50% flowering and 20 days thereafter was conducted on three groundnut (Arachis hypogaea L) varieties during 1992 and 1993 rainy seasons at Kalyani in West Bengal. The results revealed that spraying of nutrient solutions increased LAI, CGR, pods/plant, shelling (%) and 100-kerael weight. The increase in pod yields due to spraying of KNO3, Ca (NO3)2 and urea over control (water spray) was 28.0, 24.9 and 7.8% and increase in oil yields was 27.0, 24.8 and 7.6% respectively. The economic analysis showed that spraying KN03 solution gave highest net return @ Rs 10, 117.00/ha with an additional net return @ Rs 5069.00/ha over control. ICGS 44 and JL 24 were high yielders as compared to ICGV 86015.
