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http://dx.doi.org/10.17137/korrae.2017.25.4.15

Effect of Crop Yield and Soil Physical Properties to Application of Organic Resources in Upland  

Han, Kyunghwa (National Institute of Agricultural Sciences, Rural Development Administration)
Jung, Kangho (National Institute of Agricultural Sciences, Rural Development Administration)
Cho, Heerae (National Institute of Agricultural Sciences, Rural Development Administration)
Lee, Hyubsung (National Institute of Agricultural Sciences, Rural Development Administration)
Ok, Junghun (National Institute of Agricultural Sciences, Rural Development Administration)
Zhang, Yongseon (National Institute of Agricultural Sciences, Rural Development Administration)
Kim, Gisun (National Institute of Agricultural Sciences, Rural Development Administration)
Seo, Youngho (Gangwon Agricultural Research & Extension Services)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.25, no.4, 2017 , pp. 15-22 More about this Journal
Abstract
Application of organic resources to agricultural land can increase crop yield by improving soil characteristics. The objective of this study was to evaluate effect of crop yield and soil physical properties including aggregate stability to application of organic resources in upland. The soybean was cultivated in a sandy loam field and a clay loam field located at Suwon and a sandy loam field located at Pyeongchang. The organic resources used in this study were rice straw compost (RSC), composted pig manure with sawdust (CPIG), composted poultry manure with sawdust (CPM), and cocopeat applied before sowing crop. Application rate of organic resources was determined based on carbon content and water content. The inorganic fertilizers were applied based on soil testing. In addition, the decomposition of RSC, CPIG, and cocopeat was characterized by isothermal incubation with sandy loam soil. The decomposition rate was highest for RSC followed by CPIG and cocopeat. Organic resource application increased yield of soybean, which effect was greater in clay loam than in sandy loam. In addition, increase in gas phase proportion by organic resource application was distinct in clay loam soil compared with sandy loam soil. In terms of aggregate stability, increasing effect was more obvious in sandy loam soils than in a clay loam soil. The highest yield was observed in RSC treatment plots for all the fields. Improvement of soybean yield and soil physical characteristics by cocopeat was not as much as that of the other organic resources. The results implied that RSC could be recommended for promoting aggregate stability and crop yield in upland cultivation.
Keywords
Animal manure compost; Cocopeat; Organic resources; Rice straw compost; Soil physical characteristics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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