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Effect of nitrogen, phosphorus and sulphur on the micronutrient content of blackgram


Crop Research (Hisar) 9(1): 54-58
Effect of nitrogen, phosphorus and sulphur on the micronutrient content of blackgram
Field experiments were conducted to assess the effect of N, P and S on micronutrient content in blackgram and soil. Application of N and P, either singly or in combination with S significantly increased the Mn, Zn, Cu and Fe content in grain and straw and also increased the available Mn and Zn content in soil. Available Cu content in soil significantly decreased with increasing dose of nitrogen and phosphorus but it increased with S application, while available Fe content in soil increased with increasing dose of nitrogen and phosphorus and decreasing dose of sulphur. The best treatment combination for micronutrient content in blackgram and available Mn and Zn content in soil was found to be 30 kg N, 60 kg P-2O-5 and 60 kg S/ha. For availability of Cu and Fe in soil, application of S and P with nitrogen, respectively, was beneficial.

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Accession: 002815427



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