Weeraratne, C.S.
Use of Chemical and organic fertilizer in Sri Lanka (in Sinhala)
- NARESA Colombo 1982
- 56 lk
- Sri Lanka Manure
- Science Education Series No.11 .
http://thakshana.nsf.ac.lk/slstic/NA-104/NA_104.pdf
NA-104
NA-104
Education
Agriculture
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