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Effects of Mixing Ratio of Substrates and Concentration of Fertigation in Nutrient Solutions on the Early Growth of Cucumber Plug Seedlings  

Kim, Hong-Gi (Callus Inc.)
Cho, Ja-Yong (Dept. of Medicinal Resources & Horticulture Development, Namdo Provincial College of Jeonnam)
Bae, Jong-Hyang (Division of Horticulture and Pet Animal-Plant Science, Wonkwang Univ.)
Yang, Seung-Yul (Division of Plant Science and Production, Suncheon Nat'l. Univ.)
Heo, Buk-Gu (Naju Foundation of Natural Dyeing Culture)
Publication Information
Journal of Bio-Environment Control / v.16, no.2, 2007 , pp. 101-107 More about this Journal
Abstract
This experiment was carried out to develop the substrate mixtures for the production of high quality plug seedlings of cucumber. Peatmoss based substrates, rice hull, carbonized rice hull, decomposed sawdust, perlite and granular rockwool were mixed by five different mixing ratioes (M1, M2, M3, M4 and M5). The cultivars used were cucumber (Cucumis sativus L. cv. Janghyung heukjinju) plants. The higher the content of peatmoss added, the higher the plant growth in terms of plant height, leaf area and total dry weight, which leading to the production of high quality plug seedlings. Seedlings growth of cucumber were greater in M5 mixtures [peatmoss:rice hull:decomposed sawdust=40:40:20(v/v)], M4 mixtures [peatmoss:rice hull:decomposed sawdust:granular rockwool=30:25:20:25(v/v)] and M2 mixtures [peatmoss:rice hull:decomposed sawdust:granular rockwool=20:20:15:25:20(v/v)] The concentrations of nutrient solution (EC) had a great influence on plant height, leaf area, total fresh and dry weight of cucumber seedlings growth. As the concentration of nutrient solution increased from 0.1 to $1.5dS{\cdot}m^{-1}$, the growth and seedling quality of cucumber in plant height, leaf area and dry weight were significantly improved.
Keywords
cucumber; nutrient solution; plug seedling; substrate mixtures;
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