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Effect of sources and levels of phosphorus on growth and yield of no-till sorghum in rice-sorghum sequence

An investigation was carried out in no-till sorghum to assess the direct and residual effect of phosphorus management of sorghum in rice-sorghum sequence during rabi, 2016-17 and 2017-18 on clay loam soils of Agricultural College Farm, Bapatla. All treatments are randomly allocated in three replications in a split plot design for kharif season and splitsplit plot design for rabi season in both the years of study. The most popular sorghum hybrid CSH-16 was used for experimental purpose. Results showed that a significant increase in plant height, drymatter accumulation, yield attributes and grain yield of sorghum were observed with green manuring insitu with dhaincha + PSB applied to rice on succeeding no-till sorghum and 50 % RDP given to sorghum. There was no significant difference was observed on growth and yield parameters of sorghum where 50 % RDP given to rice on sorghum. | Effect of sources and levels of phosphorus on growth and yield of no-till sorghum in rice-sorghum sequence