This method of growing plants involves rooting them in sand instead of soil and providing them with the inorganic nutrients they need to grow in the form of water. It is also called sand cultivation and is a type of hydroponic culture. Vegetables and other crops are sometimes grown using sand cultivation in deserts and coastal dunes. Abu Dhabi in the United Arab Emirates is particularly well known for building polyethylene greenhouses on the coast and cultivating a variety of vegetables in sand using desalinated seawater. The facilities required for sand cultivation are only a bed of well-drained sand and an automatic irrigation system, and compared to other hydroponic methods, the cost of construction is lower. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
土壌の代りに砂に根を張らせ,生育に必要な無機養分を水に溶かした形で与えて植物を栽培する方法で,砂栽培ともいい,水耕の一方式である。砂漠や海岸の砂丘地などでは,砂耕によって野菜などの栽培が行われることがある。とくにアラブ首長国連邦のアブ・ダビーでは,海岸にポリエチレンハウスを建て,脱塩した海水を用いて種々の野菜を砂耕していることで有名である。砂耕の施設は排水のよい砂のベッドと自動灌水装置だけで,他の水耕方式に比べて,施設費は安くてすむ。
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