磁处理水灌溉卷心莴苣的开发与生产

IF 1 4区 环境科学与生态学 Q4 WATER RESOURCES
Lis Tavares Ordones Lemos, Fábio Ponciano de Deus, Valter Carvalho de Andrade Júnior, Michael Silveira Thebaldi, Marcio Mesquita, Rodrigo César de Almeida
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引用次数: 1

摘要

考虑到淡水的稀缺,灌溉农业已成为一个令人担忧的问题。为了减少水的消耗,提出了新的工艺和技术。在此基础上,本研究的目的是评估磁化水灌溉开始时不同土壤水分张力对“冰山”莴苣露西·布朗(lacuca Sativa L.)发育和生产的影响。本试验采用完全随机因子设计,在温室中对2种水类型(MW磁处理水和OW普通水)和灌溉开始时4种土壤水张力(T1 ~ 15kpa、T2 ~ 25kpa、T3 ~ 40kpa和T4 ~ 70kpa)进行了3个重复评价。使用张力计来估计土壤水张力。评价参数为:空中部分鲜干总质量;商品头鲜干质量、根鲜干质量;茎鲜干团;茎长和直径;叶尖燃烧的百分比,总产量和商业产量;与总产量和商业产量相关的用水效率;厂房暴露面积;干物质含量。尽管实现了更高的水分利用效率,但磁处理可能阻碍了作物从土壤中去除水分,特别是在灌溉开始时土壤水分张力增加的情况下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development and production of iceberg lettuce irrigated with magnetically treated water
Irrigated agriculture has become a concern, given the scarcity of freshwater. To reduce its water consumption, new techniques and technologies have been proposed. Based on this, the objective of this work was to evaluate the influence of different soil water tensions at initiation of irrigation with magnetically treated water, on ‘iceberg’ lettuce Lucy Brown (Lactuca Sativa L.) development and production. The experiment was conducted in a greenhouse, using a completely randomized factorial design, to evaluate two water types (magnetically treated water – MW and ordinary water – OW) and four soil water tensions at initiation of irrigation (T1 – 15 kPa, T2 – 25 kPa, T3 – 40 kPa and T4 – 70 kPa), with three replicates. Tensiometers were used to estimate soil water tension. The evaluated parameters were: aerial part fresh and dry total mass; commercial head fresh and dry mass, root fresh and dry mass; stem fresh and dry mass; stem length and diameter; percentage of leaves with tip burn, total and commercial yield; water use efficiency related to total and commercial yield; plant exposed area; and dry matter content. Despite achieving greater water use efficiency, the magnetic treatment may have hindered the removal of water from the soil by the crop, especially at increased soil water tension at initiation of irrigation.
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来源期刊
Water SA
Water SA 环境科学-水资源
CiteScore
2.80
自引率
6.70%
发文量
46
审稿时长
18-36 weeks
期刊介绍: WaterSA publishes refereed, original work in all branches of water science, technology and engineering. This includes water resources development; the hydrological cycle; surface hydrology; geohydrology and hydrometeorology; limnology; salinisation; treatment and management of municipal and industrial water and wastewater; treatment and disposal of sewage sludge; environmental pollution control; water quality and treatment; aquaculture in terms of its impact on the water resource; agricultural water science; etc. Water SA is the WRC’s accredited scientific journal which contains original research articles and review articles on all aspects of water science, technology, engineering and policy. Water SA has been in publication since 1975 and includes articles from both local and international authors. The journal is issued quarterly (4 editions per year).
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