Koyama, Takeo,  <br/><br/>
Nitrogen application technology for tropical rice as determined by field expermineds using 15N tracer technique / 
Takeo Koyama, Chittana Chammek and Natee Niamsrichand 
 - Tokyo :  Tropical Agriculture Research Center,  1973 
 - 79 pages :  illustration ;  26 cm 
<br/><br/> Includes table 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice --Fertilizers<br/>Rice --Soils<br/>Nitrogen fertilizers
<br/><br/><label>LC Class. No.: </label>SB191.R5 K69