Velayutham, K.S. <br/><br/>
Some studies on determination of available phosphorus in Papua New Guinea soils / 
K.S.Velayutham, K.S. Pandrilei and K.Thiagalingam. 
 -  1981. 
 - p. 203-210. 
<br/><br/> Photocopy from : Phosphorus and potassium in the tropics : proceedings of the International Conference in Kuala Lumpur, 17-19th August 1981. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Phosphorus content.--Papua New Guinea