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http://dx.doi.org/10.5338/KJEA.2008.27.4.321

Influence of Gypsum, Popped Rice Hulls and Zeolite on Contents of Cation in Reclaimed Tideland Soils in Mangyeong  

Baek, Seung-Hwa (Dept. of Biofood Science and Biotechnology, Chungbuk Provincial University of Science & Technology)
Lee, Sang-Uk (Div. of Life-Environment, College of Life Science and Natural Resources, Wonkwang University)
Kim, Dae-Geun (Div. of Life-Environment, College of Life Science and Natural Resources, Wonkwang University)
Heo, Jong-Wook (Div. of Life-Environment, College of Life Science and Natural Resources, Wonkwang University)
Kim, Seong-Jo (Div. of Life-Environment, College of Life Science and Natural Resources, Wonkwang University)
Publication Information
Korean Journal of Environmental Agriculture / v.27, no.4, 2008 , pp. 321-327 More about this Journal
Abstract
Soil conditioner, such as $CaSO_4{\cdot}2H_2O$ (gypsum), popped rice hulls (PRH), and PRH with zeolite, were treated to the silt loam of Mangyeong in Saemangeum tideland reclaimed as 1550 (G1), 3100 (G2) and 6200 (G3) of gypsum kg/10 a, 1000(H1), 2000(H2), and 3000 (H3) of PRH kg/10 a, and 200 (HZ1), 400 (HZ2), 800 (HZ3) of zeolite kg/10 a added to 1500 PRH kg/10 a, respectively, each year until 2006 from 2004 for soil aggregation. Under these conditions with growing bermuda grass (Cynodon dactylon) it was analyzed cations in soil, such as $K^+$, $Na^+$, $Mg^{2+}$, and $Ca^{2+}$, at 60, 90, and 120 days after treatment (DAT) to research how soil conditioners influenced to change those contents in soils, respectively. The change of cations in soil was almost the same things as fine sandy loam that gypsum treated decreased remarkably contents of $K^+$, $Na^+$, $Mg^{2+}$ in soil. The change of $K^+$ content in soil by continuous using soil conditioners was gradually decreased in the order of 2004>2005>2006, regardless of the sorts and levels of soil treated conditioners, and $K^+$ content was high in the order of gypsum content was high in the order of gypsum content in soil was increased in the order of gypsum content in soil was remarkably increased with continuous treatment of gypsum, and its level was in the order of 2004<2005<2006.
Keywords
Gypsum; Popped rice hulls; Zeolite; Aggregates; Soil Aggregation; Fine sandy loam; Silt loam; Cations;
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