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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