새만금 간척지에서 석고, 팽화왕겨 및 제올라이트 처리가 토양 중 양이온 함량에 미치는 영향
nfluence of Gypsum, Popped Rice Hulls and Zeolite on Contents of Cation in Reclaimed Tideland Soils in Mangyeong
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다운로드
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참고문헌
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초록
Soil conditioner, such as CaSO4･2H2O (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+, Mg2+, and Ca2+, 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+, Mg2+ 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<PRH<PRH with zeolite each year. Na+ content was high in the order of gypsum<PRH<PRH with zeolite regardless of the sorts and levels treatment of soil conditioners each year. Particularly Treatments of PRH and PRH with zeolite was made to increase Na+ content in soil as compared with fine sandy loam soil. Mg2+ content in soil was increased in the order of gypsum<PRH with zeolite<PRH along with continuous using soil conditioner. Ca2+ content in soil was remarkably increased with continuous treatment of gypsum, and its level was in the order of 2004<2005<2006.
Abstract
Soil conditioner, such as CaSO4･2H2O (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+, Mg2+, and Ca2+, 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+, Mg2+ 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<PRH<PRH with zeolite each year. Na+ content was high in the order of gypsum<PRH<PRH with zeolite regardless of the sorts and levels treatment of soil conditioners each year. Particularly Treatments of PRH and PRH with zeolite was made to increase Na+ content in soil as compared with fine sandy loam soil. Mg2+ content in soil was increased in the order of gypsum<PRH with zeolite<PRH along with continuous using soil conditioner. Ca2+ content in soil was remarkably increased with continuous treatment of gypsum, and its level was in the order of 2004<2005<2006.
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