Crop residue management systems :  proceeding of a symposium sponsored by Divsions C- 3, S- 3, S- 4 and S- 6... / 
editor W. R. Oschwald 
 - Madison, Wis. :  American Society of Agronomy,  1978 
 - 248 p. :  ill. ;  23 cm. 
 - ASA special publication ;  no.31 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0891189508 
<br/><br/><label>LCCN: </label>78-56644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stubble mulching--Congresses<br/>Tillage--Congresses<br/>Soil conservation--Congresses