Dryland agriculture. 

 - Madison, WI :  American Society of Agronomy :  Crop Science Society of America :  Soil Science Society of America,  1983 
 - Agronomy ;  23 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivo de secano<br/>Ecología vegetal<br/>Suelo
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Texto