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Abstract
The Journal of the National Science Foundation of Sri Lanka publishes the results of research in all aspects of Science and Technology. The journal also has a website at http://www.nsf.gov.lk/. 2020 Impact Factor: 0.515The JNSF provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Highlights
Preliminary investigations to increase the availability of phosphorus in Eppawala apatite were carried out
Apatite is an important phosphate rock of igneous origin and deposits of this material in various forms occur. in a number of countries." In Sri Lanka, large deposits of apatite are known to occur in Eppawala in Anuradhapura District
As availability of P in apatite is usually greater in acidic soils,' studies were carried out to examine the influence of mixing Eppawala apatite with acidifying materials on P availability under upland and lowland conditions
Summary
Preliminary investigations to increase the availability of phosphorus in Eppawala apatite were carried out. Samples of Reddish Brown Latasolic (RBL) and Reddish Brown Earth (RBE) were mixed separately with dried animal manure (cattle dung), dried straw or powdered sulphur at 2%. The apatite material was incorporated with these mixtures at the same rate and incubated at room temperature and at 50%field capacity over a period of 12weeks.
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