Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2016.04.026 |
Alternate furrow irrigation can radically improve water productivity of okra | |
Siyal, A. A.1; Mashori, A. S.2; Bristow, K. L.3,4; van Genuchten, M. Th5 | |
通讯作者 | Siyal, A. A. |
来源期刊 | AGRICULTURAL WATER MANAGEMENT
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ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2016 |
卷号 | 173页码:55-60 |
英文摘要 | Alternate furrow irrigation (AFI) is gaining interest as a means of saving water while minimising loss in crop production. Given the potential water savings of AFI, a field experiment was conducted in the Tandojam region of Pakistan by growing okra with AFI and conventional furrow irrigation (CFI) in which every furrow is irrigated. Our results show that total irrigation water applied in the AFI treatment was roughly half (248 +/- 2.9 mm) that applied to the CFI treatment (497 +/- 1.7 mm). Despite the very significant reduction in irrigation water used with AFI there was a non-significant (p > 0.05) reduction (7.3%) in okra yield. As a result, we also obtained a significantly (p < 0.001) higher crop water productivity (CWP) of 5.29 +/- 0.1 kg m(-3) with AFI, which was nearly double the 2.78 +/- 0.04 kg m(-3) obtained with CFI. While this reduction in yield and/or potential income may appear small, it could be critical to the welfare of individual farmers, who may as a result hesitate to make changes from CFI to AFI if they are worse off than farmers who do not adopt AFI. This situation exists because current water charges are based on crop and land area rather than the volume of water being accessed for irrigation. Transitioning from the current crop and land area based method of charging for water to a volumetric method may require investment in irrigation system changes and may take time to accomplish. These are important lessons for other countries, and particularly developing countries who are trying to improve the environmental, social and economic performance of their irrigated systems. We recommend that further studies be carried out using AFI to determine whether similar water savings and flow-on benefits can be achieved across a wide range of cropping systems in arid and semi-arid environments. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Irrigation efficiency Water use efficiency Water savings Deficit irrigation |
类型 | Article |
语种 | 英语 |
国家 | Pakistan ; Australia ; South Africa ; Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000378465300006 |
WOS关键词 | EFFICIENCY ; CONSERVATION ; UNIFORMITY ; YIELDS |
WOS类目 | Agronomy ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
来源机构 | Commonwealth Scientific and Industrial Research Organisation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191130 |
作者单位 | 1.Mehran Univ Engn & Technol, US Pakistan Ctr Adv Studies Water, Jamshoro, Sindh, Pakistan; 2.Sindh Agr Univ Tandojam, Dept Farm Power & Machinery, Fac Agr Engn, Tandojam, Pakistan; 3.CSIRO Agr, PMB Aitkenvale, Townsville, Qld 4814, Australia; 4.Univ Pretoria, Water Inst, Dept Plant Prod & Soil Sci, Private Bag X20, ZA-0028 Hatfield, South Africa; 5.Univ Fed Rio de Janeiro, Dept Mech Engn, BR-21945970 Rio De Janeiro, RJ, Brazil |
推荐引用方式 GB/T 7714 | Siyal, A. A.,Mashori, A. S.,Bristow, K. L.,et al. Alternate furrow irrigation can radically improve water productivity of okra[J]. Commonwealth Scientific and Industrial Research Organisation,2016,173:55-60. |
APA | Siyal, A. A.,Mashori, A. S.,Bristow, K. L.,&van Genuchten, M. Th.(2016).Alternate furrow irrigation can radically improve water productivity of okra.AGRICULTURAL WATER MANAGEMENT,173,55-60. |
MLA | Siyal, A. A.,et al."Alternate furrow irrigation can radically improve water productivity of okra".AGRICULTURAL WATER MANAGEMENT 173(2016):55-60. |
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