Productivity gradients on sloping tea land in ceylon

Hasselo, H.N.2015-06-192015-06-191964Tea Quarterly35(4)pp.207-216https://dl-tri.nsf.gov.lk/handle/1/144AgricultureSoil erosionProductivityTea gradingExperimentation techniquesSloping tea landProductivity gradients on sloping tea land in ceylonArticle