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YIELD RESPONSE OF BORO AND T. AMAN RICE TO NPKS FERTILIZERS IN HIGH GANGES RIVER FLOODPLAIN SOIL (Pages : 18 - 22)

S. M. ZAMAN, M. R. AMIN, D. A. CHOUDHURY, R. U. CHOUDHURY and M. I. HOSSAIN

The experiment was conducted at farmer's field of Kalaroa under Satkhira district, during three consecutive years of Boro and T. Aman season of 2001 to 2003 to determine the response and to find out the optimum rate of nutrients (NPKS) for Boro (Brri dhan-28) and T. aman ( Brri dhan-30) rice to NPKS on the yield under AEZ 11. Four different levels of NPKS were assigned in RCB design with 4 dispersed replications. Average of three years study reveals that a considerable response of Boro and T. aman rice to NPKS was observed. However, the response to N and P was more distinct in comparison to K and S. Similarly, the response was more evident in Boro rice compared with T. aman rice. Yield of Boro rice increased upto the application of 140, 35, 20 and 20 kg/ha of NPK and S, respectively. But in T. aman yield was increased upto the application of 95, 20, 20 and 15 kg/ha of NPK and S, respectively. From the regression analysis it was found that the relationship was almost quadratic in nature. The optimum rate of NPKS for Boro rice was 130-25-20-15 kg/ha, respectively whereas for T. aman rice it was 90-15-15-10 kg/ha of NPKS, respectively. Download


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