Summary
A field experiment was conducted during 1982–83 on the Gangetic alluvial soil (Typic Ustochrept) of Pura, Kanpur to study the effectiveness of iron pyrites and of gypsum as a sulfur fertilizer for three cultivars of mustard (Brassica juncea). Increasing the supply of sulfur through either pyrites or gypsum significantly increased the grain and straw yields and the concentration and uptake of sulfur in the three cultivars of mustard. The effectiveness of pyrites was very similar to that of gypsum.
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Tiwari, K., Dwivedi, B. & Pathak, A. Relative effectiveness of iron pyrites and gypsum as sulfur fertilizer for different cultivars of mustard (Brassica juncea). Fertilizer Research 8, 279–282 (1986). https://doi.org/10.1007/BF01048630
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DOI: https://doi.org/10.1007/BF01048630