Wick Material and Media for Capillary Wick Based Irrigation System in Kenya
Wick Material and Media for Capillary Wick Based Irrigation System in Kenya
复制标题
肯尼亚毛细管芯灌溉系统的芯材料和介质
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
P. Home
中科院分区：
文献类型：
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作者：
J. Wesonga;C. Wainaina;F. K. Ombwara;P. Masinde;P. Home
肯尼亚每年的水补给量为640立方米，被列为缺水国家，因此需要确定和采用节水灌溉和水管理战略。毛细芯是一种创新的灌溉技术，使用最少量的水。五种灯芯材料，即：对毛毯材料（BM）、棉织物（CW）、棉无纺布（CNW）、100%聚酯布材料（CL）和进口吸液芯材料（IWM）作为冲洗系统吸液芯材料的适用性进行了测试。根据其持水量（WHC）、吸水模式（WAP）和最大毛细管高度（MCH）选择芯材料。此外，四种介质类型，即：土壤+砂+粪肥（SSM），土壤+椰子油+粪肥+砂（SCMS），土壤+椰子油+粪肥+浮石（SCMP）和椰子油+粪肥+浮石（CMP）进行了测试，用于毛细芯灌溉系统（CWS）。测试了介质的持水量、吸水模式、体积密度和水分释放特性（MRC）。在所测试的五种芯材料中，布材料在WAP和MCH方面具有最好的性能，但具有略低的WHC。因此，布材料被选为最好的当地可用的芯材料用于CWS。在测试的四种媒体类型中，SCMP和SSM媒体在WAP和MRC方面的表现最好。需要对作物的材料和培养基进行评估，并确定适合在系统中生长的作物。
With 640m3 annual water recharge, Kenya is classified as a water deficit country hence the need to identify and adopt water saving irrigation and water management strategies. Capillary wick is an innovative technique of irrigation that uses minimal amount of water. Five wick materials namely: Blanket material (BM), Cotton Woven (CW), Cotton Non-woven (CNW), 100% Polyester Cloth Material (CL) and Imported Wick Material (IWM) were tested for suitability as wick material for the irrigation system. Wick materials were selected based on their water holding capacity (WHC), water absorption pattern (WAP) and maximum capillary height (MCH). In addition, four media types namely: Soil + Sand + Manure (SSM), Soil + Cocopeat + Manure + Sand (SCMS), Soil + Cocopeat + manure + Pumice (SCMP) and Cocopeat + manure + Pumice (CMP) were tested for use in the Capillary Wick Irrigation System (CWS). The media were tested for water holding capacity, water absorption pattern, bulk density and moisture release characteristics (MRC). Of the five wick materials tested, cloth material had the best performance in terms of WAP and MCH but had slightly lower WHC. Therefore cloth material was selected as the best locally available wick material for use in CWS. Of the four media types tested, media SCMP and SSM had the highest performance in terms of WAP and MRC. Evaluation of the materials and media with crops need to be carried out and suitable crops identified for growing in the system.