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首页> 外文期刊>Scientia horticulturae >Application of a modified irrigation method using compensated radiation integral, substrate moisture content, and electrical conductivity for soilless cultures of paprika
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Application of a modified irrigation method using compensated radiation integral, substrate moisture content, and electrical conductivity for soilless cultures of paprika

机译：使用补偿辐射积分，基质含水量和电导率的改良灌溉方法在辣椒粉无土栽培中的应用

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摘要

Irrigation strategy has a direct influence on the productivity and the production cost of soilless cultures of paprika, and thus more efficient irrigation methods are required. The objective of this study was to compare water use efficiency and crop productivity between a conventional irrigation method and a modified irrigation method using a precise irrigation control system. Accumulated radiation was used as an irrigation index for the conventional method as a control, whereas the compensated value of accumulated radiation as well as the substrate moisture content and electrical conductivity was used as irrigation. indices for the modified one. Plant growth and water use efficiency were compared between both irrigation systems. The experiment was performed in a commercial farm cultivating paprika in Hwasung, Korea. For the modified method, the substrate moisture content was well-controlled in the range of 69-85% and showed a narrow fluctuation compared to the control. Additionally, the substrate electrical conductivity was maintained within 2.4-4.6 dS m(-1) during the growth period, whereas the substrate electrical conductivity increased up to 7.9 dS m(-1) for the control. Water consumption and water-use efficiency of the shoots and fruits were 6.6% and 3.7% higher, respectively, with the modified method compared to the control. Overall plant growth was better with the modified method. Based on these results, it could be concluded that the modified irrigation method improved the productivity of paprika in soilless cultures. (C) 2015 Elsevier B.V. All rights reserved.
机译：灌溉策略直接影响辣椒粉无土栽培的生产力和生产成本，因此需要更有效的灌溉方法。这项研究的目的是比较传统灌溉方法和使用精确灌溉控制系统的改良灌溉方法之间的水分利用效率和农作物生产力。对于常规方法，将累积辐射用作灌溉指数作为对照，而将累积辐射的补偿值以及基材的水分含量和电导率用作灌溉。修改后的索引。比较了两种灌溉系统的植物生长和水分利用效率。该实验是在韩国华城的一家商业农场种植辣椒粉的。对于改进的方法，将基材的水分含量控制在69-85％的范围内，并且与对照相比显示出较小的波动。此外，在生长期间，基材电导率保持在2.4-4.6 dS m（-1）之内，而对照的基材电导率增加至7.9 dS m（-1）。与对照相比，改良方法的芽和果实的耗水量和水分利用效率分别提高了6.6％和3.7％。改良的方法使植物总生长更好。根据这些结果，可以得出结论，改良的灌溉方法提高了无土栽培辣椒粉的生产率。 （C）2015 Elsevier B.V.保留所有权利。

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