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：115-120
语种：English
出版社：Bangladesh Society for Conservation of Environment and Natural Resources
摘要：Four field experiments were carried out with Binadhan 7 at Birgonj, Dinajpur; Debigonj, Panchagarh; Kaligonj, Lalmonirhat and Pirgonj, Rangpur during T.aman (kharif II) season of 2011 in the Old Himalalayan Piedmont Plain (AEZ 1) and Tista Meander Floodplain Soils of North-West Bangladesh. The experiments were designed with eight treatments and laid out in randomized complete block design (RCBD) with three replications. The treatment combinations were: T 1 (100%STB), T 2 (T 1 + 25% N), T 3 (T 1 + 25% NP), T 4 (T 1 + 25% NK), T 5 (T 1 + 25% PK), T 6 (T 1 + 25% NPK), T 7 (75% of T 1 ) and T 8 (Control). Results indicated that application of different fertilizers significantly affected the grain yield at all of the four locations. The highest grain yield was found in treatment T 6 (T 1 + 25% NPK). Statistically identical yield was observed in treatments T 3 , T 4 and T 5 at Dinajpur; T 3 at Panchagar; T 2 , T 3 , and T 4 at Lalmonirhat and T 2 at Rangpur. All the treatment combinations gave significantly higher grain yield over the control at all of the locations. The highest straw yield was found in treatment T 6 (T 1 + 25% NPK). Statistically identical straw yield was found in T 3 and T 4 at Dinajpur; T 1 , T 4 and T 5 at Panchagar; T 2 , T 4 , T 5 and T 7 Lalmonirhat and all treatments except T 7 and T 8 at Rangpur. Significantly the lowest yield was obtained in the control treatment (T 8 ) in all of the locations. The highest total N uptake was observed in treatment T 6 at all of the four locations. For total P uptake, the similar trend of total N uptake was observed for all the locations. Treatment T 6 showed the highest uptake of total K at all locations. The highest uptake of total S was observed in treatment T 6 at Dinajpur, Panchagarh and Lalmonirhat. But the highest uptake of total S was observed in treatment T 3 at Rangpur. However, the lowest total N, P, K and S uptake was observed in control treatment (T 8 ) at all locations. The partial budget analysis of T.aman rice demonstrated the highest net benefit of tkha-1 85,598/-, 78,619/-, 58,308/- and 72,532/- in T 6 treatment followed by tkha-1 76,348/- in T 4 treatment, 71,100/- in T 3 treatment, 54,192/- in T 3 treatment and 68,247/- in T 2 treatment where the highest MBCR of 5.40, 3.75, 2.20 and 3.84 was also observed in T 6 treatment at Dinajpur, Panchagarh, Lalmonirhat and Rangpur, respectively. Based on most profitable treatments, fertilizer doses of N 80 P 8 K 40 S 8 Zn 1 in Birgonj, Dinajpur; N 84 P 8 K 40 S 6 Zn 1 in Debigonj, Panchagarh; N 80 P 8 K 40 S 6 Zn 1 in Kaligonj, Lalmonirhat and N 81 P 8 K 35 S 8 Zn 1 in Pirgonj, Rangpur could be recommended for higher yield of Binadhan-7 rice in North-West Bangladesh. DOI: http://dx.doi.org/10.3329/jesnr.v6i2.22106 J. Environ. Sci. & Natural Resources, 6(2): 115-120 2013
关键词：Fertilizers;Binadhan-7;Yield;Kharif II season and North-West Bangladesh
