Response of maize Zea mays L and chichpea Cicer arietinum L to site specific nutrient management SSNM through targeted yield approach

Abstract

Field experiments were conducted at A. R. S. Belvatagi, University of Agricultural newlineSciences, Dharwad during kharif and rabi 2008-09 to study the Response of Maize (Zea newlinemays L.) and Chickpea (Cicer arietinum L) to Site Specific Nutrient Management (SSNM) newlineThrough Targeted Yield Approach under irrigated conditions in Malaprabaha Command area newlineof zone III of Karnataka. The treatments comprise of two hybrids/varieties (Cargil 900 M and newlineEH-434042 of maize hybrids and JG-11 and A-1 of chickpea varieties) with four targeted yield newlinelevels (60, 75, 90 q ha-1 with RDF for maize and 20, 30 and 40 q ha-1 with RDF for chickpea). newlineAmong the maize hybrids, Cargil 900 M recorded significantly higher grain yield newline(88.86 q ha -1) over EH-434042 (712.62 q ha-1) in mother trial. Similar increase in yield also newlineobserved in baby trial. Higher fertilizer dose (216:216:322 NPK kg ha-1) for 90 q ha-1 targeted newlineyield recorded significantly higher grain yield (94.59 q ha-1) over RDF (70.05 q ha-1). newlineInteraction effect revealed that Cargil 900-M with 90 q ha-1 targeted yield levels recorded newline105.39 q ha-1 of grain yield which was 38.45% higher than RDF with the same hybrid. The newlinegrowth, yield components, NPK uptake and soil status after harvest of the crops increased newlinesignificantly with both the hybrids with 90 q ha-1 targeted yield level as compared to RDF and newlinelower targeted yield levels. newlineBoth the chickpea varieties responded significantly to the application of higher dose newlineof fertilizers (220:199:260 kg NPK for 40 q ha-1). The JG-11 and A-1 with 40 q ha-1 targeted newlineyield levels increased the grain yield by 61.14 and 77.70% with an additional income of Rs. newline25,745 ha-1 and Rs 29356 ha-1 over RDF. The growth, yield components and uptake of NPK newlinewere also higher with both the varieties at higher targeted yield levels. newline