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Water Saving Irrigation Standard of Tomato in Greenhouse
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 Title & Authors
Water Saving Irrigation Standard of Tomato in Greenhouse
Eom, Ki-Cheol; Lee, Byung-Kook; Koh, Mun-Hwan; Eom, Ho-Yong; Sonn, Yeun-Kyu;
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The Average daily PET (Potential evapotranspiration), evaluated based on the last 30 years meteorological data and the lysimeter experiment carried out by RDA during 11 years, of 9 regions in Korea for the tomato cultivated in greenhouse, was . Two kinds of water saving irrigation standard (WSIS), deficit irrigation standard (DIS) and partial root-zone drying irrigation standard (PRDIS) that include the irrigation interval and the amount of irrigation water according to the region, soil texture and growing stage, were established. According to the DIS and PRDIS, the cultivator can save water up to 29.2% and 53.7%, respectively, for tomato cultivation in greenhouse compared to the full irrigation standard (FIS) which established in 1999. WSIS can be used easily by the cultivator without complicate procedures such as soil sampling and measurement of soil water status by expensive sensors. But the cultivator should care about irrigation method such as PRDI (partial root-zone drying irrigation) without yield decrease.
Irrigation Standard;Full Irrigation;Water Saving Irrigation;Deficit Irrigation;Partial Root-zone Drying Irrigation;
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