Bhavanandan, V.P.Fernando, V.2015-06-192015-06-191970Tea Quarterly41(2-4)pp.94-106https://dl-tri.nsf.gov.lk/handle/1/401AgricultureUrease activityTea soilFertilizerFumigation,Studies on the use of urea as a fertilizer for tea in Ceylon 2: urease activity in tea soilsArticle