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Optimum Condition of Peatmoss-Based Substrate for Growth of Red Pepper (Capsicum annuum L.) Plug Seedlings  

Lee, Hyun-Haeng (National Institute of Agricultural Science Technology)
Ha, Sang-Keon (National Institute of Agricultural Science Technology)
Kim, Ho-Jin (Dept. of Environmental Horticulture, The University of Seoul)
Kim, Kye-Hoon (National Institute of Agricultural Science Technology)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.40, no.5, 2007 , pp. 392-399 More about this Journal
Abstract
This study was carried out to assess optimum conditions of peatmoss-based substrates for red pepper plug seedlings. Peatmoss-based substrates prepared by mixing of peatmoss with vermiculite, perlite, rice hull and zeolite at various mixing ratios were used for growing pepper plug seedlings. The physical and chemical properties of the peatmoss substrate were analyzed by the CEN(European committee for standardization) method. Fresh and dry weights (shoot, root), leaf area, root length and T/R ratio (dry shoot weight/dry root weight) were determined at 55 days after sowing. The results showed that the growing media PVSZ 6 (peatmoss:silver vermiculite: zeolite=6:3.9:0.1) and PVGZ 6 (peatmoss:gold vermiculite: zeolite=6:3.9:0.1) can successfully be used for red pepper plug seedlings judging from dry weight and T/R ratio of the plug seedlings. The optimal ranges of total pore space, water volume, air volume, easily available water content and water buffering capacity of the peatmoss based growing media for pepper plug seedlings were 87~93%, 52~71%, 20~41%, 10~37% and 0.6~10%, respectively.
Keywords
Red pepper (Capsicum annuum L.); Plug seedlings; Peatmoss; Growing substrates;
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