Feasibility of Introducing Rice Based Four Crops Pattern in Rangpur Region of Bangladesh

The Agriculturists Pub Date : 2017-08-04 DOI:10.3329/AGRIC.V15I1.33435

M. Islam, Zakia Yesmin, M. Badshah, Mohammad Ali

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Abstract

An experiment was conducted at Bangladesh Rice Research Institute (BRRI) Farm at Rangpur during July 2014 - June 2016 to introduce a 4-crops pattern with the aim of increasing cropping intensity, productivity, income and soil fertility. The experimental design was RCB with 3 replications. Four cropping patterns were tested which were: CP 1 = T. Aman (BRRI dhan62)-Potato (Cardinal)-Mungbean (BARI Mung-6)-T. Aus (BRRI dhan48), CP 2 = T. Aman (BRRI dhan62)-Mustard (BARI Sorisha-14)-Mungbean (BARI Mung-6)-T. Aus (BRRI dhan48), Farmers improved practice (FIP) = T. Aman (BR11)-Potato (Cardinal)-Maize (NK 40) and Farmers general practice (FP) = T. Aman (BR11)-Boro (BRRI dhan28)- Fallow. In T. Aman 2014, BRRI dhan62 produced 3.87 and 3.85 t ha -1 grain yields under CP 1 & CP 2 (4 crops systems), respectively; BR11 gave grain yield of 4.62 and 4.36 t ha -1 in FIP and FP (3 and 2 crop system), respectively. In T. Aman 2015, BRRI dhan62 produced grain yield of 4.23 and 4.19 t ha -1 in CP 1 and CP 2 , and BR11 gave grain yield of 5.95 and 5.92 t ha -1 in FIP and FP, respectively. After T. Aman, potato yield was 24.66 t ha -1 in CP 1 and 24.17 t ha -1 in FIP during 2014-15. In CP 2, 2 nd crop mustard yield was 1.16 t ha -1 and3r d crop mungbean yield was only 0.98 t ha -1 .In CP 1 , 3r d crop mungbean yield was only 0.83 t ha -1 . After potato in FIP, maize yield was 8.38 t ha -1 . After T. Aman (BR11) in FP, grain yield of BRRI dhan28 was 5.42 t ha -1 . The yield of BRRI dhan48 in CP 1 and CP 2 (as 4 th crop) was 4.5 t ha -1 . Similar results of different crops were obtained in 2015-16. The rice equivalent yield (REY) was found to be 30.05 & 35.95 t ha -1 yr -1 in CP 1 during 1 st and 2 nd yearfollowed by FIP (23.92 & 29.82 t ha -1 yr -1 , respectively). The REY was higher in 2 nd year compared to 1 st year. In 2014-15 the highest net return of Tk.2,42,560 ha -1 was observed in CP 1 followed by FIP(Tk.1,58,380 ha -1 ); in 2015-16, the highest net return was in CP 1 (Tk.2,16,960 ha -1 ) followed by FIP(Tk.1,24,620 ha -1 ). Potato based cropping pattern was thus, the most suitable and profitable pattern in this area. T. Aman (BRRI dhan62)-Potato (Cardinal)-Mungbean (BARI Mung-6)-T. Aus (BRRI dhan48) may, therefore, be the most suitable and profitable cropping pattern in medium high lands of Rangpur region. The Agriculturists 2017; 15(1) 116-126

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孟加拉国Rangpur地区引进水稻为主的四种作物模式的可行性

2014年7月至2016年6月，在孟加拉国水稻研究所(BRRI)位于Rangpur的农场进行了一项试验，旨在引入4种作物模式，以提高种植强度、生产力、收入和土壤肥力。试验设计为RCB, 3个重复。试验四种种植模式为:CP 1 = T.阿曼(BRRI dhan62)-马铃薯(Cardinal)-绿豆(BARI Mung-6)-T。澳大利亚(BRRI dhan48)， CP 2 = T.阿曼(BRRI dhan62)-芥菜(BARI Sorisha-14)-绿豆(BARI Mung-6)-T。农民改良做法(FIP) = T. Aman (BR11)-马铃薯(Cardinal)-玉米(NK 40)和农民一般做法(FP) = T. Aman (BR11)- boro (BRRI dhan28)-休耕地。2014年，BRRI dhan62在CP 1和CP 2(4种作物制度)下的粮食产量分别为3.87和3.85吨/公顷;BR11在FIP和FP(3种和2种作物制)中的产量分别为4.62和4.36 t / h1。2015年，BRRI dhan62在CP 1和CP 2上的产量分别为4.23和4.19 t ha -1, BR11在FIP和FP上的产量分别为5.95和5.92 t ha -1。在t . Aman之后，2014-15年CP 1和FIP的马铃薯产量分别为24.66 t / hm2和24.17 t / hm2。cp2第2期芥菜产量为1.16 t / ha -1，第3期绿豆产量仅为0.98 t / ha -1, cp1第3期绿豆产量仅为0.83 t / ha -1。马铃薯在FIP后，玉米产量为8.38吨/公顷。经FP处理的t . Aman (BR11)后，BRRI dhan28的产量为5.42 t / h。BRRI dhan48在CP 1和CP 2(作为第4个作物)的产量为4.5 t / h。2015-16年不同作物的结果相似。CP 1和2年的水稻当量产量(REY)分别为30.05和35.95 t / h -1年-1，其次是FIP(23.92和29.82 t / h -1年-1)。第2年的REY高于第1年。2014- 2015年，CP 1的净收益最高，为42,560公顷，其次是FIP(Tk)。1,58380公顷(1);2015-16年度，净收益最高的是CP 1 (Tk.2,16,960 ha -1)，其次是FIP(Tk. 2,16,960 ha -1)。1,24,620公顷(1)。因此，以马铃薯为基础的种植模式是该地区最适合和最有利的种植模式。T.阿曼(BRRI dhan62)-土豆(Cardinal)-绿豆(BARI Mung-6)-T。因此，Aus (BRRI dhan48)可能是Rangpur地区中高地最适宜和最有利的种植模式。农学家2017;15 (1) 116 - 126

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