Share This Article:

Rice Yield Gap Minimization in Central Bangladesh: Using and Adapting Existing Technologies

Abstract Full-Text HTML XML Download Download as PDF (Size:1052KB) PP. 1-13
DOI: 10.4236/oalib.1101641    633 Downloads   1,077 Views  

ABSTRACT

Rice (Oryza sativa L.) in the dry season (Boro) followed by rice in the wet season (Aman) is the major cereal cropping system in Bangladesh. The average productivity (7 Mg·ha﹣1) of this system is far below attainable yields (14 Mg·ha﹣1) in farmers’ fields, resulting in a large yield gap mainly due to farmers’ traditional management practices. Narrowing yield gap is a vital complementary strategy in improving rice yield and consequently enhancing food security. We evaluated BRRI recommended management practices, BRRI recommended management practices along with two N management options (leaf color chart and Urea Super Granule) and farmers’ crop management practices integrated with quality seed, leaf color chart (LCC) and Urea Super Granule (USG) in farmers’ fields of Kapasia, Gazipur over 6 contiguous seasons during 2009-2012. Across years, all the management options increased grain yields compared with the farmers’ practice (FP) by 1.12 Mg·ha﹣1 in Aman and 0.84 Mg·ha﹣1 in Boro season. The higher yield response (43%) occurred with BRRI recommended management practices followed by BRRI recommended management practices in combination with Urea Super Granule (42%) as N source (BRRI-USG). Yield advantage of 41% could be attained by BRRI recommended management practices with leaf color chart (LCC) aided N management (BRRI-LCC) while this was 22%, 13% and 13% higher than FP (farmer’s practice) when only quality seeds, USG and LCC were used with farmers’ management practice. BRRI Rec., BRRI-LCC and BRRI-USG·management options reduce the yield gap of FP by 41%, with an average of 2.87 Mg·ha﹣1. When farmers adopted FP-QS, FP-USG and FP-LCC management options, they reduced the yield gap of FP by 21%, 13% and 12%, with an average of 1.49, 0.88 and 0.81 Mg·ha﹣1, respectively. The average added net returns with BRRI Rec., BRRI-LCC and BRRI-USG·management options were US$175 to US$362 ha﹣1 in the wet season and US $158 to US $263 ha﹣1 in the dry season. BRRI management practices and BRRI management practices integrated with two N management options, either LCC or USG has the potential to boost rice yield and consequently total rice production in Bangladesh.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Quais, M. , Dewan, M. , Khatun, A. and Sultana, H. (2015) Rice Yield Gap Minimization in Central Bangladesh: Using and Adapting Existing Technologies. Open Access Library Journal, 2, 1-13. doi: 10.4236/oalib.1101641.

References

[1] Young, A. (1999) Is There Really Spare Land? A Critique of Estimates of Available Cultivable Land in Developing Countries. Environment, Development and Sustainability, 1, 3-18.
http://dx.doi.org/10.1023/A:1010055012699
[2] IRRI (2008) I.R.R.I. Responding to the Rice Crisis: How IRRI Can Work with Its Partners. IRRI, Los Baños, 1-14.
[3] Aureus, M. (2011) The Rise of Rice. Rice Today, Jan-Mar, IRRI, Los Baños, 16.
[4] Bangladesh Economic Review (2009) Government of the People’s Republic of Bangladesh Ministry of Finance, Dhaka.
[5] FAO (2012) FAOSTAT. Food and Agriculture Organization of the United Nations—For a World without Hunger, Statistics Division.
http://faostat.fao.org/
[6] Mukherjee, N., Choudhury, G.A., Khan, M.F.A. and Islam, A.K.M.S. (2011) Implication of Changing Consumption Pattern on Food Security and Water Resources in Bangladesh. Proceedings of the 3rd International Conference on Water and Flood Management (ICWFM 2011), Dhaka, 8-10 January 2011, 731-738. (ISBN: 978-984-33-2298-2)
[7] Ladha, J.K., Pathak, H., Padre, A.T., Dawe, D. and Gupta, R.K. (2003) Productivity Trends in Intensive Rice-Wheat Cropping Systems in Asia. In: Ladha, J.K., Hill, J., Gupta, R.K., Duxbury, J. and Buresh, R.J., Eds., Improving the Productivity and Sustainability of Rice-Wheat Systems: Issues and Impacts, ASA Special Publication 65, American Society of Agronomy, Madison, 45-76.
http://dx.doi.org/10.2134/asaspecpub65.c3
[8] Pathak, H., Ladha, J.K., Aggarwal, P.K., Peng, S., Das, S., Singh, Y., Singh, B., Kamara, S.K., Mishra, B., Sastri, A.S.R.A.S., Aggarwal, H.P., Das, D.K. and Gupta, R.K. (2003) Climatic Potential and On-Farm Yield Trends of Rice and Wheat in the Indo-Gangetic Plains. Field Crops Research, 80, 223-234.
http://dx.doi.org/10.1016/S0378-4290(02)00194-6
[9] Ladha, J.K., Kumar, V., Alam, M.M., Sharma, S., Gathala, M.K., Chandna, P., Saharawat, Y.P. and Balasubramanian, V. (2009) Integrating Crop and Resource Management Technologies for Enhanced Productivity, Profitability and Sustainability of the Rice-Wheat System in South Asia. In: Ladha, J.K., Yadvinder, S., Erenstein, O. and Hardy, B., Eds., Integrated Crop and Resource Management in the Rice-Wheat System of South Asia, International Rice Research Institute, Los Baños, 69-108.
[10] BRRI (2007) BRRI Annual Internal Review Report for 2006-07. Bangladesh Rice Research Institute, Gazipur.
[11] BRRI (2008) BRRI Annual Internal Review Report for 2007-08. Bangladesh Rice Research Institute, Gazipur.
[12] BRRI (2009) BRRI Annual Internal Review Report for 2008-09. Bangladesh Rice Research Institute, Gazipur.
[13] BRRI (2010) BRRI Annual Internal Review Report for 2009-10. Bangladesh Rice Research Institute, Gazipur.
[14] Fertilizer Recommendation Guide (2005) Bangladesh Agricultural Research Council (BARC), Dhaka.
[15] Alam, M.M., Buresh, R.J., Ladha, J.K. and Khan, A.H. (2004) Site-Specific Nutrient Management (SSNM) for Rice. Bangladesh Rice Research Institute, Gazipur, 13-17.
[16] BRRI (2008) Adhunik Daner Chas (A Bangali Publication). Bangladesh Rice Research Institute, Gazipur.
[17] Gomez, K.A. and Gomez, A.A. (1984) Statistical Procedure for Agricultural Research. 2nd Edition, John Willey and Sons, Singapore City, 28-192.
[18] Regmi, A.P., Tripathi, J., Giri, G.S., Bhatta, M.R., Sherchan, D.P., Karki, K.B., Tripathi, B.P., Kumar, V. and Ladha, J.K. (2009) Improving Food Security through Integrated Crop and Resource Management in the Rice-Wheat System. In: Ladha, J.K., Yadvinder-Singh, Erenstein, O. and Hardy, B., Eds., Integrated Crop and Resource Management in the Rice-Wheat System of South Asia, International Rice Research Institute, Los Baños, 69-108.
[19] Alam, M.M., Ladha, J.K., Khan, S.R., Rashid, H.F., Khan, A.H. and Buresh, R.J. (2005) Leaf Color Chart for Managing Nitrogen Fertilizer in Lowland Rice in Bangladesh. Agronomy Journal, 97, 949-959.
http://dx.doi.org/10.2134/agronj2004.0206
[20] Alam, M.M., Ladha, J.K., Rahman, Z.F., Khan, S.R., Rashid, H., Khan, A.H. and Buresh, R.J. (2006) Nutrient Management for Increased Productivity of Rice-Wheat Cropping System in Bangladesh. Field Crops Research, 96, 374-386.
http://dx.doi.org/10.1016/j.fcr.2005.08.010
[21] Sarker, M.A.R., Alam, K. and Gow, J. (2012) Exploring the Relationship between Climate Change and Rice Yield in Bangladesh: An Analysis of Time Series Data. Agricultural Systems, 112, 11-16.
http://dx.doi.org/10.1016/j.agsy.2012.06.004

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.