Liu, Xiaobing <br/><br/>
[Ecological effects of cover crops].  [electronic resource] 

 -  Ying yong sheng tai xue bao = The journal of applied ecology  Mar 2002 
 - 365-8 p.  digital 
<br/><br/> Publication Type: Journal Article; Review 
<br/><br/><label>ISSN: </label>1001-9332 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Availability<br/>Conservation of Natural Resources<br/>Crops, Agricultural--growth & development<br/>Ecosystem<br/>Fertilizers<br/>Nitrates--chemistry<br/>Pest Control<br/>Plant Diseases<br/>Soil