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Effect of Dolomite Levels in Various Root Media Containing Micronutrient Mixes on Growth of Marigold Plug Seedlings  

Choi Jong-Myung (Division of Hort. & Landscape Architecture, Paichai Univ.)
Publication Information
Journal of Bio-Environment Control / v.15, no.3, 2006 , pp. 217-224 More about this Journal
Abstract
Objective of this research was to determine the effect of application rate of dolomite in root media containing micronutrient mixes on growth of marigold 'Orange boy' in plug trays. To achieve this, three granular micronutrient mixes such as HF 1, MF 2, and MF 3 were produced and incorporated into three root media, peatmoss+composted pine bark (1:1, v/v, PB), peatmoss+composted rice-hull (1:1, v/v, PR), and peatmoss+composted saw-dust (1:1, v/v, PS), with a rate of $0.3g{\cdot}L^{-1}$. Elevated application rate of dolomite in PB medium containing MF 1 decreased crop growth at 35 days after sowing with the highest fresh and dry weight in the control treatment of dolomite. The treatments of 3.0 and $6.0g{\cdot}L^{-1}$ of dolomite in PB medium containing MF 2 produced 0.133g of dry weight and 0.686g of fresh weight, respectively, which were the highest among treatments of dolomite. But the treatments of 3.0 and $6.0g{\cdot}L^{-1}$ of dolomite in PB medium containing MF 3 produced the highest fresh and dry weight, respectively. Elevated application rate of dolomite in PR medium containing MF 1, 2, and 3 resulted in decrease of fresh an dry weight. The relative growth suppression induced by elevated application rate of dolomite was more severe when MF 3 were incorporated than MF 1 and 2. The treatments of 3.0 and $6.0g{\cdot}L^{-1}$ of dolomite in PS medium containing MF 1 and 3 showed good growth, but elevated application rate of dolomite in PS medium containing MF 2 and control resulted in increase of dry and fresh weight. These results indicated that the application rate of dolomite should be adjusted by kinds of root media and micronutrient mixes.
Keywords
dolomite; micronutrient mix; plug culture; root media;
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  • Reference
1 Argo, W.R. 1998. Root medium chemical properties. HortTechnology 8:486-494
2 Hanan, J.J. 1998. Greenhouses: Advanced technology for protected horticulture. Prentice Hall, Upper Saddle River, NJ
3 Lindsay, W.L. 1979. Chemical equilibra in soils. John Wiley & Sons, New York
4 Marschner, H. 1995. Mineral nutrition of higher plants. 2nd ed. Academic Press Inc., San Diego, USA
5 Bunt, A.C. 1988. Media and mixes for container grown plants. Unwin Hyman, London
6 Nelson, P.V. 2003. Greenhouse operation and management. 6th ed. Prentice Hall, NJ
7 Choi, J.M. and C.S. Kang. 2005b. Nutrient contents and elution characteristics of slow release micronutrient fertilizers as affected by chemical composition in manufacturing. Kor. J. Hort. Sci. Technol. 23:110-115
8 Mengel, K. and E.A. Kirkby. 1987. Principles of plant nutrition. 4th ed. Intl. Potash Inst., Bern, Switzerland
9 Choi, J.M., H.J. Chung, and J.S. Choi. 2000. Physico-Chemical properties of organic and inorganic materials used as container media. Kor. J. Hort. Sci. Technol. 18:529-535
10 Choi, J.M. and C.S. Kang. 2005a. Effect of incorporation of micronutrient mixes on growth and nutrient uptake of marigold and changes of soil nutrient concentrations in plug system. Kor. J. Hort. Sci. Technol. 23:104-109