文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
O. Hansen
发表
Field measurements of soil pH and lime requirement using an on-the-go soil pH and lime requirement measurement system.
J. V. Stafford, Alex B. McBratney, R. A. Viscarra Rossel, 2005 .