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Effects of Condensed Molasses Soluble on Chemical and Biological Properties of Soil, and Nitrogen Mineralization  

Kang, Gwan-Ho (Division of Environmental and Agricultural Science, Sunchon National University)
Kang, Byung-Hwa (Division of Environmental and Agricultural Science, Sunchon National University)
Park, Ki-Do (National Yeongnam Agricultural Experiment Station, RDA)
Chung, Keun-Yook (Department of Agricultural Chemistry)
Sohn, Bo-Kyoon (Division of Environmental and Agricultural Science, Sunchon National University)
Ha, Ho-Sung (Department of Agricultural chemistry, Gyoungsang National University)
Heo, Jong-Soo (Department of Agricultural chemistry, Gyoungsang National University)
Cho, Ju-Sik (Division of Environmental and Agricultural Science, Sunchon National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.37, no.2, 2004 , pp. 124-130 More about this Journal
Abstract
This study was carried out to evaluate the effects of condensed molasses soluble (CMS) treatment on the mineralization of N, chemical properties and soil microbial population under the incubation condition with unsaturated water content during the 7 weeks at $25^{\circ}C$ in the different levels of CMS application. The results indicated that the total nitrogen content of soil was increased with increasing application rate of CMS and this trend was maintained up to 7 weeks. With CMS treatment content of $NH_4-N$ was gradually decreased. However, the content of $NO_3-N$ in the soil was gradually increased with incubation time due to the nitrification under the unsturated water condition. The CMS treatment increased the microbial populations such as bacteria, actinomycetes and fungi, which may be due to the availability of more nutrients such as amino acids, sugars and other minor elements from CMS. The pH of soil was found to be reduced by the addition of CMS, Whereas, electrical conduvtivity of soil was correspondingly increased with increasing application rate of CMS.
Keywords
Condensed molasses soluble; CMS; Mineralization; Microbial population; Organic Fertilizer;
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