Salt Removal in a Reclaimed Tidal Land Soil with Gypsum, Compost, and Phosphate Amendment
기관명 | NDSL |
---|---|
저널명 | Korean journal of Soil Science and Fertilizer |
ISSN | 0367-6315,2288-2162 |
ISBN |
저자(한글) | Lee, Jeong-Eun,Seo, Dong-Hyuk,Yun, Seok-In |
---|---|
저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2015-01-01 |
초록 | High salinity and sodicity of soils play a negative role in producing crops in reclaimed tidal lands. To evaluate the effects of soil ameliorants on salt removal in a highly saline and sodic soil of reclaimed tidal land, we conducted a column experiment with treating gypsum, compost, and phosphate at 0-2 cm depth and measured the salt concentration of leachate and soil. Electrical conductivity of leachate was $45-48dSm^{-1}$ at 1 pore volume (PV) of water and decreased to less than $3dSm^{-1}$ at 3 PV of water. Gypsum significantly decreased SAR (sodium adsorption ratio) of leachate below 3 at 3 PV of water and soil ESP (exchangeable sodium percentage) below 3% for the whole profile of soil column. Compost significantly decreased ESP of soil at 0-5 cm depth to 5% compared with the control (20%). However, compost affected little the composition of cations below a depth of 5 cm and in leachate compared with control treatment. It was concluded that gypsum was effective in ameliorating reclaimed tidal lands at and below a soil layer receiving gypsum while compost worked only at a soil layer where compost was treated. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201534165173579 |
첨부파일 |
과학기술표준분류 | |
---|---|
ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | Exchangeable sodium percentage,Salinity,Salt leaching,Sodicity,Sodium adsorption ratio |