不同负压给水对小白菜生长及土壤水分的影响
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摘要
为筛选出南方冬季蔬菜小白菜(brassica)主动式供水灌溉(负压灌溉)最适宜的土壤水分条件,采用盆栽试验,研究了南方地区2种典型蔬菜土壤—红菜园土和潮菜园土,3个不同负压给水(-5.0、-7.5、-10.0 k Pa)对土壤含水率、小白菜生长情况、耗水特性及其水分利用效率等的影响。结果表明,红菜园土种植冬季小白菜,最适宜的负压灌溉值为-10.0 k Pa,土壤质量含水率为18.7%,潮菜园土最适宜的负压灌溉值为-5.0 k Pa,土壤质量含水率为25.3%。
Using pot experiments, we investigated the impact of irrigation under negative pressure on growth of Chinese cabbage and winter vegetable brassica in attempts to select an irrigation method which could provide the most suitable moisture content for the two vegetables to grow in red-garden and alluvial soils in Southern China.Three water pressures,-5.0,-7.5 and-10.0 k Pa were examined, and the results showed that for the red-garden soil the most suitable water pressure was-10.0 k Pa with an associated soil moisture content of 18.7%, while for the alluvial garden soil, the most suitable water pressure was-5.0 k Pa with an associated moisture content of 25.3%.
Using pot experiments, we investigated the impact of irrigation under negative pressure on growth of Chinese cabbage and winter vegetable brassica in attempts to select an irrigation method which could provide the most suitable moisture content for the two vegetables to grow in red-garden and alluvial soils in Southern China.Three water pressures,-5.0,-7.5 and-10.0 k Pa were examined, and the results showed that for the red-garden soil the most suitable water pressure was-10.0 k Pa with an associated soil moisture content of 18.7%, while for the alluvial garden soil, the most suitable water pressure was-5.0 k Pa with an associated moisture content of 25.3%.
引文
[1]2014年中国水资源公报[EB/OL].http://www.mwr.gov.cn/zwzc/hygb/szygb/qgszygb/201508/t20150828_719423.html
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[4]杜园园,王同朝,刘永忠,等.交替灌溉方式土壤水分运移及垄体参数初探[J].山西农业科学,2012,40(7):738-741.
[5]孙景生,康绍忠,蔡焕杰.控制性交替灌溉技术的研究进展[J].农业工程学报,2001,17(4):1-5.
[6]CLINTON C S,ERIK B G F,LAMONT D S.Center for Irrigation Technology,California State University,Fresno.Annual Report,Malheur Experiment Station(M).Oregon State University.
[7]段福义,黄修桥,范永申,等.负压给水技术研究初探[J].中国农村水利水电,2011(2):59-61.
[8]李邵,薛绪掌,郭文善,等.负水头灌溉对温室番茄生长、产量及品质的影响[J].农业工程学报,2008,24(S2):225-229.
[9]李邵,薛绪掌,郭文善,等.供水吸力对温室黄瓜产量与水分利用效率的影响[J].中国农业科学,2010,43(2):337-345.
[10]肖海强,刘学勇,龙怀玉,等.土壤水势对烤烟生长及其耗水特性的影响[J].中国烟草科学,2015,36(1):35-41.
[11]龙怀玉,雷秋良,张认连.应用于农业灌溉的恒负压灌水系统[P].北京:CN103548645A,2014-02-05.
[12]龙怀玉,刘振华,肖海强,等.应用于农业灌溉的负压调节装置[P].北京:CN103583315A,2014-02-19.
[2]张丽君,时述凤,杨天礼.我国农业灌溉用水定额编制和应用现状[J].中国水利,2014(9):10-12.
[3]曹国玺.我国的水利节水灌溉工程策略分析[J].河南水利与南水北调,2014(9):50,55.
[4]杜园园,王同朝,刘永忠,等.交替灌溉方式土壤水分运移及垄体参数初探[J].山西农业科学,2012,40(7):738-741.
[5]孙景生,康绍忠,蔡焕杰.控制性交替灌溉技术的研究进展[J].农业工程学报,2001,17(4):1-5.
[6]CLINTON C S,ERIK B G F,LAMONT D S.Center for Irrigation Technology,California State University,Fresno.Annual Report,Malheur Experiment Station(M).Oregon State University.
[7]段福义,黄修桥,范永申,等.负压给水技术研究初探[J].中国农村水利水电,2011(2):59-61.
[8]李邵,薛绪掌,郭文善,等.负水头灌溉对温室番茄生长、产量及品质的影响[J].农业工程学报,2008,24(S2):225-229.
[9]李邵,薛绪掌,郭文善,等.供水吸力对温室黄瓜产量与水分利用效率的影响[J].中国农业科学,2010,43(2):337-345.
[10]肖海强,刘学勇,龙怀玉,等.土壤水势对烤烟生长及其耗水特性的影响[J].中国烟草科学,2015,36(1):35-41.
[11]龙怀玉,雷秋良,张认连.应用于农业灌溉的恒负压灌水系统[P].北京:CN103548645A,2014-02-05.
[12]龙怀玉,刘振华,肖海强,等.应用于农业灌溉的负压调节装置[P].北京:CN103583315A,2014-02-19.