Pethiyagoda, U. Use of potash fertilizer in agriculture in Sri Lanka : a report based on studies under a CIDA - funded research programme 1984-1992 - Colombo : Natural Resources, Energy & Science Authority of Sri Lanka , 1995 - 40p. ; 29cm Nat. Bib. No.: NA73 Subjects--Topical Terms: Agriculture;Fertilizer Subjects--Index Terms: Soil ; Potassium ; Soil Moisture ; Drought ; Crop responses ; Non-conventional techniques ; Tea ; Rubber ; Paddy ; Chillies ; Ground nut Universal Decimal Class. No.: 631.8(548.7) / USE