Rosegrant, Mark W. <br/><br/>
Biological technology and agricultural policy: an assessment of azola in Philippine rice production. 

 - Washington :  IFPRI,  1985. 
<br/><br/> This paper examines the economic feasibility of azolla as a source of nitrogen in Philippine rice production. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Policy.<br/>Philippines.