Abstract
Background: The productivity of greengram (Vigna radiata L.) is not adequate to meet the growing global population since mostly all the leguminous crop grown under rainfed condition. In this regard, a research experiment was conducted to investigate the effect of bio fermented products with drip fertigation under aerobic rice (Oryza sativa L.) - greengram (Vigna radiata L.) cropping system. Methods: A field experiment was conducted at Wetland farms of Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore during 2019-21. For greengram Thirteen treatments with Randomized complete block design were imposed in which fermented fish waste and fermented egg product were applied through drip at vegetative stage and peak flowering stage. Surface irrigation was scheduled based on IW/CPE ratio of 0.5 with conventional application of fertilizers. Result: The experiment results revealed that application of drip fertigation @ 125% RDF+100% PE with FFW registered higher growth parameters (plant height, drymatter production, 50% flowering, LAI), physiological parameters (Crop growth rate, Relative growth rate, SPAD values), yield attributes, yield and cropping system analysis. The results of correlation analysis also showed that the grain yield was positively impacted by the yield parameters.
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