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Effect of Root Medium Formulations on Growth and Nutrient Uptake of Hot Pepper Plug Seedlings  

Choi, Jong-Myung (Division of Hort. & Landscape Architecture, Paichai Univ.)
Ahn, Joo-Won (Dept. of Horticulture, Chungnam Nat'l Univ.)
Ku, Ja-Hyeong (Dept. of Horticulture, Chungnam Nat'l Univ.)
Publication Information
Journal of Bio-Environment Control / v.15, no.4, 2006 , pp. 369-376 More about this Journal
Abstract
This research was conducted to evaluate the effect of root medium formulations on growth and nutrient uptake of hot pepper 'Knockgwang' in 72-cell plug trays. To achieve this, the nine root media were formulated by adjusting blending rate of perlite (PL) to coir (CO), peatmoss (PM) or coir+peatmoss (5:5, v/v, COPM). Then, the growth characteristics and tissue nutrient contents were determined at 35 and 70 days after sowing. The elevated blending rate of PL to CO increased fresh and dry weight of hot pepper at 35 days after sowing. The treatments of 20% in blending rate of PL to PM or that of 0% to COPM produced the highest fresh and dry weight among perlite treatments of PM or COPM. The results of crop growth at 70 days after sowing also showed similar trends to those of 35 days after sowing. The elevated blending rate of PL to CO or PM decreased tissue $P_2O_5$ and K contents and increased Ca and Mg contents at 35 days after sowing, With the equal blending rate of perlite, the plant tissue grown in CO had higher K contents and lower N, Ca and Mg contents than those in PM and COPM. The elevated blending rate of perlite in three organic matter also decreased tissue $P_2O_5$ and K contents at 70 days after sowing, but Ca and Mg contents were the highest in the treatment of 20% PL in CO, 40% PL in PM and 40% PL in COPM among perlite treatments in each organic matter.
Keywords
soil nutrient concentrations; tissue nutrient contents; tomato plug seedlings;
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