Development of plant production system using sea water

利用海水的植物生产系统的开发

• 批准号: 08456011
• 负责人: INANAGA Shinobu
• 金额: $ 4.29万
• 依托单位: Arid Land Research Center, Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08456011/
• 关键词: salt water; desalinization; solar energy; plant cultivation; water bath; culture pot; mulch; temperature difference; 塩類土壌; 持続的作物栽培システム; 除塩膜; カルシウム塩施用

We established a novel simple system for plant cultivation using salt water. The system comprised of a flat plastic container, filled with salt water, and a plastic pot with a hole in the bottom. The bottom hole in the plastic pot was covered with a nylon net. Stones and glasswool were placed as a bottom layr and the rest of the pot was filled with vermiculite. The pot was placed on top of the plastic container.During the daytime, water absorbs solar energy and evaporates. However, because of high pot temperature, no water is retained by vermiculite. During the night, temperature of the pot drops below that of the bath and accordingly evaporating water is trapped as pure water by vermiculite in the culture pot. This system depends completely on solar energy. The latter is free, limitless and dose not require sophisticated or costly equipment or facilities.We investigated several cultural conditions with the prime objective of increasing water supply and retention by the vermiculite. Mulching with vinyl sheets on both the bath and the pot increased water evaporation from the bath and water retention by vermiculite. Increasing the bottom area of the pot as well as amount of vermiculite promotes capturing of water vapor and water supply and net retention by vermiculite.Rapessed and Chingensai plants were grown in this system using salt water as only water source.

我们建立了一个新的简单的系统，植物栽培使用盐水。该系统由一个装满盐水的扁平塑料容器和一个底部有孔的塑料罐组成。塑料罐底部的洞用尼龙网盖住。将石头和玻璃棉作为底层放置，并将该罐的其余部分用蛭石填充。在白天，水吸收太阳能并蒸发。然而，由于锅温高，蛭石不会保留水分。在夜间，罐的温度下降到低于浴的温度，因此蒸发的水被培养罐中的蛭石捕获为纯水。这个系统完全依赖太阳能。后者是免费的，无限制的，不需要复杂或昂贵的设备或facility.We调查了几个文化条件的主要目标是增加水分供应和保持蛭石。在浴槽和盆上覆盖乙烯基片材增加了浴槽的水蒸发和蛭石的保水性。增加盆底面积和蛭石用量可促进蛭石对水蒸气的捕获和水分供应以及净持水量。