Weerakoon, W.L. <br/><br/>
Conservation farming activities 1987 to 1989 

 - Mahailluppallama  Agricultural research station   1989 
 - 289p., ill.,  22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture <br/>Plant <br/>Lowland
<br/><br/><label>Universal Decimal Class. No.: </label>631.171  / CON