期刊名称:Journal of Environmental Science and Natural Resources
印刷版ISSN:2408-8633
出版年度:2015
卷号:6
期号:2
页码:55-59
语种:English
出版社:Bangladesh Society for Conservation of Environment and Natural Resources
摘要:The economic rate of nutrients was determined with eight different fertilizer treatment applied on T. aman rice (var. Binadhan-7) in Old Brahmaputra Floodplain Soils (AEZ-9) during 2012 and 2013 at Trisal, Mymensingh. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The treatment combinations were: T 1 (N 64 P 14 K 28 S 6 Zn 1 ), T 2 (N 80 P 14 K 28 S 6 Zn 1 ), T 3 (N 80 P 17.5 K 28 S 6 Zn 1 ), T 4 (N 80 P 14 K 35 S 6 Zn 1 ), T 5 (N 64 P 17.5 K 35 S 6 Zn 1 ), T 6 (N 80 P 17.5 K 35 S 6 Zn 1 ), T 7 (N 48 P 10.5 K 21 S 4.5 Zn 0.75 ), and T 8 (control). Grain and straw yields were significantly affected by the application of fertilizers at different rates. Results revealed that the average highest grain (4.86 t ha -1 ) was recorded in T 6 (N 80 P 17.5 K 35 S 6 Zn 1 ) treatment and straw yield (5.34 t ha -1 ) was recorded in treatment T 3 (N 80 P 17.5 K 28 S 6 Zn 1 ) which is 132.54% and 86.06% respectively higher over control treatment. The second highest grain yield (4.77 t ha -1 ) was obtained in T 3 treatment and straw (5.18 t ha -1 ) was recorded in T 6 treatment. Average (2012 & 2013) nutrient uptake (grain and straw) was the highest in T 3 treatment. Partial budget analysis demonstrated the highest net benefit of Tk. 69,673 ha -1 in T 6 followed by Tk. 68,833 ha -1 in T 3 and the highest MBCR (4.29) was obtained in T 3 treatment. The present investigation suggests that treatment T 3 (N 80 P 18 K 28 S 6 Zn 1 ) might be the best profitable fertilizers dose to sustain Binadhan-7 rice production in Old Brahmaputra Floodplain Soils. DOI: http://dx.doi.org/10.3329/jesnr.v6i2.22096 J. Environ. Sci. & Natural Resources, 6(2): 55-59 2013
关键词:AEZ-9;Binadhan-7;Fertilizers;T. aman season and Yield