1. Effect of winter sown Chinese vetch on soil enzyme activity in calcarious dirt soil is studied.
研究在石灰性烂田中冬种紫云英对土壤酶活性的效应。

来自互联网

2. Effect of winter sown Chinese vetch on soil enzyme activity in calcarious dirt soil is studied.
研究在石灰性烂田中冬种紫云英对土壤酶活性的效应。

来自互联网