Phosphorus requirements for sustainable agriculture in Asia and Oceania :   proceedings of a symposium 6-10 march 1989. 

 - Manila :  International Rice Research Institute (IRRI) ,  1990 
 - xvi, 478p. :  ill. ;   23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9712200027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Phosphorus content--Asia--Oceania<br/>Plants--Effect of phosphorus on--Asia--Oceania<br/>Phosphorus in agriculture--Asia--Oceania<br/>Sustainable agriculture--Asia--Oceania
<br/><br/><label>Gov. Doc. Class. No.: </label>XZ IRRI Conf. 89 Pho