| 扶埂开沟膜下灌对土壤水分分布的影响 |
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| 引用本文： | 詹汉,白清俊,董正阳,袁莹,张明智,袁宁宁.扶埂开沟膜下灌对土壤水分分布的影响[J].排灌机械工程学报,2020,38(5):511-516. |
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| 作者姓名： | 詹汉 白清俊 董正阳 袁莹 张明智 袁宁宁 |
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| 作者单位： | 西安理工大学西北旱区生态水利工程国家重点实验室,陕西 西安710048;安徽省广德县水务局,安徽 广德242200 |
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| 基金项目： | 国家重点研发计划项目(2016YFC0400203);陕西省水利科技项目(2015s1kj-07)。 |
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| 摘 要： | 为探明扶埂开沟膜下灌条件对作物土壤水分分布以及经济效益的影响,以温室番茄为研究对象,采用完全随机试验设计方法,通过时域反射仪进行水分观测,研究扶埂开沟膜下灌条件下土壤水分分布规律,以及该灌溉方式对温室番茄经济效益的影响.结果表明:扶埂开沟膜下灌,垄背的土壤剖面达到最大含水量时间迟于垄沟以及垄坡,垄背剖面观测点在灌水后184 h;在扶埂开沟膜下灌条件下,温室番茄在苗期内进行缺水灌溉的IWUE最大达到34.925 kg/(hm2·mm-1), 产量与商果率均较高,综合产生的净收入最高,经济效益达到最大值.
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| 关 键 词： | 温室番茄 扶埂开沟膜下灌 水分分布 经济效益 |
| 收稿时间： | 2018-07-05 |
Effects of film-mulched ditch-on-ridge irrigationon soil moisture distribution |
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| ZHAN Han,BAI Qingjun,DONG Zhengyang,YUAN Ying,ZHANG Mingzhi,YUAN Ningning.Effects of film-mulched ditch-on-ridge irrigationon soil moisture distribution[J].Journal of Drainage and Irrigation Machinery Engineering,2020,38(5):511-516. |
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| Authors: | ZHAN Han BAI Qingjun DONG Zhengyang YUAN Ying ZHANG Mingzhi YUAN Ningning |
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| Institution: | 1. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi′an University of Technology, Xi′an, Shaanxi 710048, China; 2. Water Affairs Bureau of Guangde County, Anhui Province, Guangde, Anhui 242200, China. |
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| Abstract: | In order to find out effects of film-mulched ditch-on-ridge irrigation on soil moisture distribution and economic benefit,greenhouse tomato was used as experimental plant.Using a completely randomized experimental design method,the soil moisture distribution was observed by time domain reflectometry(TDR).The effect of irrigation methods,such as film-mulched ditch-on-ridge irrigation and conventional furrow irrigation,on the economic benefit of greenhouse tomato was investigated.The results show that the soil moisture profile in the back of ridge reaches the maximum later than that in the furrow irrigation,and the profile observation point at the back is 184 h after the irrigation.The water content is increased by 0.63%compared with the conventional furrow irrigation.For the film-mulched ditch-on-ridge irrigation,the maximum IWUE of greenhouse tomato reaches 34.925 kg/(hm 2·mm^-1)under water shortage irrigation,both yield and fruit yield are higher,the combined net income is the highest,and the economic benefit is maximum. |
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| Keywords: | greenhouse tomato film-mulch ditch-on-ridge irrigation moisture distribution economic benefit |
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