Long-term use of potassium fertilizer for vegetable crops in the upcountry intermediate zone

Wijewardena, J.D.H.Amarasiri, S.L.2010-07-062010-07-061997Journal of the National Science Council of Sri Lanka, 25(1):p.59-68https://dl.nsf.gov.lk/handle/1/6516Cropping sequenceVegetablesAgricultureLong-term use of potassium fertilizer for vegetable crops in the upcountry intermediate zoneArticle