A report for optimal use of Eppawala rock phosphate in Sri Lankan agriculture 

 - Colombo  NSF  1999 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>AGRICULTURE<br/>EPPAWALA ROCK PHOSPHATE<br/>FERTILIZERS<br/>PHOSPHORUS FERTILIZERS<br/>ROCK PHOSPHATE<br/>SOIL SCIENCE<br/>SRI LANKA
<br/><br/><label>Dewey Class. No.: </label>631.85  / REP