Author(s):

V Kumar, S Prasad, A Kumar, JC Chandola, J Kumar, SK Singh, M Kumar and B Shahi

Abstract: A field experiment was established at Saran district of Bihar to evaluate the effect of different sources of sulphur (i.e., Phosphogypsum: T₁, Bentonite: T₂ & Control: T₃) on yield and economics of mustard. The experiment comprised three treatments and seven replication performed under Randomised Block Design during rabi season (2018-19). Results revealed that application of bentonite and phosphogypsum improved the seed yields of mustard by 35.7 &15.6%, respectively over control. Similarly, number of seeds/siliqua & stover yields were recorded the highest in bentonite application which was followed by phosphogypsum and control. With the application of bentonote the highest restoration of available sulphur in soil followed by phosphogypsum whereas, availability of sulphur was lowered by 1.6 times as compared to initial value of soil. A satisfactory seed yields in treatment T₂ reflected to the highest net return (Rs. 42994.0/ha) & cost benefit ratio (1:3.4). In conclusion the bentonite sulphur source was performed better for mustard cultivation in middle gangetic plains of Bihar.

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