Symposium on Potential productivity of field crops under different environments. 

 - Los Baņos, Laguna, Philippines :  International Rice Research Institute,  c1983. 
 - 526 pages :  Illustrations ;  23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>9711041146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop yields--Congresses.<br/>Cropping systems--Congresses.<br/>Crops and climate--Congresses.<br/>Field crops--Congresses.<br/>Soil productivity--Congresses.