Effect of Surfactant Addition in Nutrient Solution on Mineral Nutrient Uptake and Growth of Lettuce in DFT Culture
2004
Choi, K.Y. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea) | Moon, B.W. (KOF Co., Ltd., Youngcheon, Republic of Korea) | Yang, E.Y. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea) | Seo, T.C. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea)
This study was conducted to evaluate the effect of different surfactants on the fertilizer reduction and increase of the mineral nutrients uptake of lettuce (Latuca sativa L. 'Hanbatchungchima') in deep flow technique culture. The measured items from lettuce leaves expanded fully were growth, photosynthetic and transpiration rate, and mineral nutrient content K, Ca and Mg, respectively. The highest growth were observed at 0.3 mgㆍL-¹polyvinyl alcohol (PVA-95) treatment, including lettuce grown in the half strength of nutrient solution.
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