Growth parameters and yield of groundnut as influenced by integrated nutrient management at coastal zone of Karnataka

Abstract

A field experiment was conducted to study the of integrated nutrient management in groundnut during Rabi 2015 at Zonal Agricultural and Horticultural Research Station, Brahmavar, Udupi district, Karnataka. The results of the experiment revealed that at 80 DAS recommended nutrient practice + 50 per cent RDN through vermicompost applied treatment resulted in significantly higher number of nodules (61.13) followed by POP + 50 per cent RDN through poultry manure (60.37). At 90 DAS, POP + 50 per cent RDN through poultry manure recorded significantly higher leaf area per plant (2089 cm2) followed by POP + 50 per cent RDN through vermicompost (1921 cm2) as compared to other treatments. Recommended nutrient practice + 50 per cent RDN through poultry manure recorded significantly higher dry matter production (88.36, g plant-1), followed by POP + 50 per cent RDN through vermicompost (85.88, g plant-1). During 90 DAS to at harvest, treatments of POP + 50 per cent RDN through poultry manure recorded significantly higher values of CGR viz., 0.0057 g cm-2 day -1 and followed by POP + 50 per cent RDN through vermicompost (0.0056 g cm-2 day -1). Whereas, at 90 DAS to harvest higher NAR values of 0.00239 and 0.00226 g cm-2 day -1 were registered in POP + 50 per cent RDN through vermicompost and poultry manure treatments, respectively.