Amarasiri, S.L.2014-12-162014-12-161985-86Journal of the Soil Science Society of Sri Lanka, 4:p.30-34https://dl.nsf.gov.lk/handle/1/16315AgricultureFertilizer recommendationsAnnual cropsCropping systemsSoil fertilitySoil organic matterIrrigation waterSome considerations in arriving at fertilizer recommendations for annual cropsArticle