Sulfur nutrition for enhancing rainfed groundnut productivity in typical alfisol of semi-arid regions in India |
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| Authors: | P Kannan C Swaminathan S Ponmani |
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| Institution: | 1. Soil Science and Agricultural Chemistry, Dryland Agricultural Research Station, Tamil Nadu Agricultural University, Chettinad, Karaikudi, Sivaganga, India;2. Agronomy, Dryland Agricultural Research Station, Tamil Nadu Agricultural University, Karaikudi, India;3. Environmental Science, Dryland Agricultural Research Station, Tamil Nadu Agricultural University, Karaikudi, India |
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| Abstract: | The field experiments were conducted for three consecutive years from 2011 to 2014 to evaluate the influence of graded levels of gypsum as a source of sulfur and different times of application on soil fertility and yield parameters and yield of groundnut (TMV 7) under rainfed condition at Dryland Agricultural Research Station, Chettinad, Tamil Nadu, India. It is observed that sulfur nutrition significantly influenced growth, yield attributing characters and yield over control. Sulfur nutrition through gypsum as a source 400 kg ha?1 in split mode viz., 200 kg as basal and 200 kg as top dressing during receipt of rains recorded highest plant height, more number of filled pods per plant, higher values for 100 pod weight, 100 kernel weight, pod yield and haulm yield. Split application of gypsum 400 kg ha?1 has increased pod yield to the tune of 31, 21 and 36 percent during 2011, 2012 and 2013 respectively. |
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| Keywords: | Sulfur gypsum groundnut alfisol rainfed |
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