Vol. 12 No. 1
Response on yield and protein content of fine aromatic rice varieties to integrated use of cowdung and inorganic fertilizers 
Author(s): S. PAL, S. K. PAUL, M. A. R. SARKAR AND D. R. GUPTA
Abstract: An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from June to December 2014-2015 to evaluate the effect of integrated use of inorganic fertilizers with cowdung on the yield and quality of fine aromatic rice. The experiment consisted of three varieties of aromatic fine rice viz. Kalizira, Binadhan-13 and BRRI dhan38 and six nutrient management viz. Control (F0), BINA recommended inorganic fertilizer dose 150-120-80-60-10 kg ha-1of Urea-TSP-MOP-Gypsum-ZnSO4, respectively (F1), 75% inorganic fertilizers + cowdung 5 t ha- 1 (F2), 75% inorganic fertilizers + cowdung 10 t ha-1 (F3), 50% inorganic fertilizers + cowdung 5 t ha-1 (F4), and 50% inorganic fertilizers + cowdung 10 t ha-1 (F5). The experiment was laid out in a randomized complete block design with three replications. The effect of interaction between variety and nutrient management showed significant variation on grain yield and quality. The highest grain yield (3.92 t ha-1) and grain protein content (9.88%) were obtained from Binadhan-13 fertilized with 75% inorganic fertilizers + cowdung 10 t ha-1 while the lowest grain yield (1.52 t ha-1) and grain protein content (6.42%) was found in control treatment (no manures and no fertilizers) in Kalizira. Maximum benefit cost ratio (1.94) was found from Binadhan-13 with the combination of 75% inorganic fertilizers + cowdung 5 t ha-1, which was similar (1.93) to the treatment combination of 75% inorganic fertilizers + cowdung 10 t ha-1.
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