Phosphorus requirements for sustainable agriculture in Asia and Oceania :  proceedings of a symposium, 6-10 March 1989 / 

 - [Manila? Philippines] :  International Rice Research Institute,  1990. 
 - xvi, 478 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>9712200027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphorus in agriculture<br/>Phosphorus in agriculture<br/>Soils<br/>Soils<br/>Plants<br/>Plants<br/>Sustainable agriculture<br/>Sustainable agriculture
<br/><br/><label>Dewey Class. No.: </label>631 INT 1990 A049 Or.