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G. NARAYANA SWAMY*, A.V. NAGAVANI, K. BHARGAVI, B. SAHADEVA REDDY, M.V. VIJAY SANKAR BABU AND V. UMAMAHESH
Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Anantapur – 515 001, Andhra Pradesh.
A field experiments were conducted at Agricultural Research Station, Ananthapuramu during 2014 and 2015 kharif seasons to compare the yield and yield attributes under organics in conjunction with inorganics in rainfed alfisols with and without protective irrigations during long dry spells. The experiment was laid out in Randomized block design in two separate blocks with same treatments, one block is under purely rainfed and another block was given protective irrigation. The comparison was made among the supply of 100 per cent nitrogen through organics, 100 per cent through inorganics, 50 per cent organic and 50 per cent inorganic and with predominant sheep penning practice in the region under both rainfed and protective irrigated condi-tions. The results revealed that the crop yields increased from the 2014 to 2015 kharif under both the rainfed and protective irrigation conditions. But the magnitude of increase in the yield was more in protective irrigation as compared to the rainfed conditions. The study revealed that the organics in conjunction with inorganics significantly influenced the yield of groundnut under rainfed and protective irrigation conditions in alfisols of Andhra Pradesh. The greater response was observed for the application of organic manures and sheep penning under both rainfed and protective irrigation situations.
Organic, inorganic, sheep penning, rainfed, protective irrigation, groundnut yield.