Koyama, Takeo <br/><br/>
Varietal differences of Thai rice in the resistance to phosphorus dificiency 
Takeo Koyama, Chittana Chemmek and Patoom Snitwongse 
 - Tokyo  Tropical Agriculture Research Centre  1973 
 - 32p.: ill.; 26cm.- 
 - Technical bulletin; no.4 .
<br/><br/><label>Dewey Class. No.: </label>581.632  / KOY