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KMID : 1024520200290121239
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Journal of the Environmental Sciences
2020 Volume.29 No. 12 p.1239 ~ p.1248
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The Effect of Organic Materials Application on Soil Chemical Properties and Yield of Corn in Organic Upland Soil
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Kong Min-Jae
An Phil-Gyun
Jung Jung-A
Lee Cho-Rong
Lee Sang-Min
An Nan-Hee
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Abstract
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This study performed to conduct a test to increase the amount of appropriate organic matter input to organic upland soil, soil fertility, and its effect on the chemical changes and yield of corn in soil due to organic use. The pH level of the T1, T5, and T6 treatment zones where livestock excreta was used was raised to 6.0-6.5, the optimal range of the soil in Korea, and it was confirmed that the pH value was appropriate. Electrical Conductivity (EC), organic content (OM), and total nitrogen (T-N) were also identified as a trend of continuous increase. The quantity of corn gradually increased from 74.1% to 96.4% over the four-year period with the use of organic materials compared to the beginning of the test, and the utilization efficiency of nitrogen has also increased. The results of the study were found to have been able to examine the increase in quantity and changes in soil chemistry through crop cultivation using organic materials such as natural materials, green manure crops , and livestock manure compost, and it is also believed that the changes due to various factors such as soil environment, soil microbes, and climate conditions need to be made through continuous research.
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KEYWORD
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Organic, Organic-matter, Soil chemical properties, upland soil
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