Two identical field experiments were conducted in the farmers field at Dinajpur and Rangpur with a view to investigate the requirement of secondary (Ca, Mg and S) and micronutrients (Zn, Cu, B and Mo) for the cultivation of BRRI Dhan-32. There were 12 treatments, Grain and straw yields were significantly reduced by the omission of secondary (Ca, Mg and S) and micronutrients (Zn, Cu, B and Mo) from the complete treatment in both the locations. The treatment comprising secondary and micronutrients gave the highest yield of 4913 and 4732 kg ha‾1 at Dinajpur and Rangpur locations, respectively while the absolute control produce the minimum yield ((2743 and 2627 kg ha‾1). Amongst secondary nutrients, omission of S (T5) from the complete treatment showed lower yield compared to Ca and Mg missing treatments. Boron and Zn missing plots showed lower yield compared to those of Cu and Mo missing plots. Application of secondary and micronutrients revealed a beneficial effect on yield contributing characters, which in turns resulted in higher grain yield of BRRI Dhan 32
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Baktear Hossain, S. Ahmed, A. K. M. M. Hossain, M. S. H. Khan and T. N. Kumar, 2001. Effect of Secondary and Micronutrients on the Yield and Nutrient Uptake by BRRI Dhan 32 in the Old Himalayan Piedmont Plain and Tista Meander Floodplain Soil. Journal of Biological Sciences, 1: 1051-1055.
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