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http://dx.doi.org/10.5338/KJEA.2005.24.4.364

Changes of Humus Types Affected by Application of Animal Manures Compostin Jeju Upland Soil  

Hwang, Ki-Sung (National Horticultural Research Institute (NHRI))
Yoo, Bong-Sik (National Horticultural Research Institute (NHRI))
Publication Information
Korean Journal of Environmental Agriculture / v.24, no.4, 2005 , pp. 364-369 More about this Journal
Abstract
In Jeju island, the southernmost island of Korea, the field soils are mostly consisted of volcanic and non-volcanic soils. Animal manures of 0, 50, 100, and 150 MT/ha were treated to analyse the humus content changes by application amounts and the soil types. The results are as follows; Humus distribution type was A in the most of the volcanic soils while a few soils was type B, and it was possible to confirm that the humus process has occurred in the soils. Most of the non-volcanic soils was Rp and B type, therefore, the humus content change pattern was different from the volcanic soils. The nitrate-nitrogen content and the humus content showed positive correlation of $R^2=0.5263$ in the volcanic soils, while that of non-volcanic soils was $R^2=0.524$. The carbon content and the humus content showed positive correlation of $R^2=0.469$ in the volcanic soils, while that of non-volcanic soils was $R^2=0.550$.
Keywords
Humus analyse; Animal manures; Jeju upland soil;
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