한국초지조사료학회지 (Journal of The Korean Society of Grassland and Forage Science)
- 제9권3호
- /
- Pages.168-173
- /
- 1989
- /
- 2287-5824(pISSN)
- /
- 2287-5832(eISSN)
초지토양에서의 칼리 용탈
Potassium Leaching from Grassland Soil
- Sangdeog A. Kim (Department of Dairy Science, Chung Boo Socio-Industrial College) ;
- Shigekata Yoshida (Faculty of Agriculture, Nagoya University) ;
- Ryosei Kayama (Faculty of Agriculture, Nagoya University)
- 발행 : 1989.09.01
초록
草地生態系에 있어서 칼리(K)動態에 關한 연구의 한 部分으로서, 草地士壞으로 부터의 칼리성분의 溶脫을 알아보기 위해 두가지 實驗을 수행했는데, 하나는 오차드그라스 採훨地의 토양증별 置換性칼리의 수직분포를 조사했으며 다른 한가지는 라이시메터를 이용하여 초지토양으로 부터의 칼리溶脫을 1년간 조사했다... 오차드그라tm 최초지안에서 土層間의 置換性칼리 함량의 차는 칼리 無施用區에서는 아주 작았으나 칼리 多施用區에서는 그 차이가 顯著했다(實驗 1). 라이시에터를 통해 1 년간 나온 溶脫水의 量은 月別 降雨量에 의해 큰 影響을 받았는데 그 양은
In this report two experiments were carried out. Vertical distribution of exchangeable potassium(K) of soil in the orchardgrass meadow was investigated‘ a and K leaching from soil was monitored under lysimeter condition throughout one year. The results obtained a are as follows; The difference in the exchangeable soil K content b between the soil layers was very small in K-zero plot of the orchard grass meadow, but it was significant in K¬h high plot (Experiment 1). T The volume of leached water from the Iysime ter was a about 471 liters/m2 during a year and the amount of leached water was influenced by the precipitation. D During the investigation the quantity of leached K was 2 22.3 g/
키워드