Gopalasundar, P.Yusuf, Y.2014-07-022014-07-022007-02Fertilizer News 1989 v-34 i-4 p-61-66http://hdl.handle.net/123456789/3600Available information on the effect of long term application of manures and fertilisers on the productivity of plantation crops like coconut, coffee, tea and rubber grown in the coastal humid soils of South India and the influence of manuring on soil characteristics and leaf nutrient contents are reviewed in this paper. The crops respond very well to fertiliser application, but the importance of a particular nutrient element varies from crop to crop. Fertiliser application, in general enhanced soil available P and K contents, but available N was seldom affected.enArticle