引言看到农村中有些叶子碧绿、硕果累累、生势非常好的椰子树时,往往使人有些惊奇。不难了解:这些椰子树是生长在有机质极丰富的土壤上,因为农民已习于把食物残渣、农家垃圾和木灰等施在椰子树下。在湿热的赤道地带,有机质分解迅速,土壤一般贫瘠,植物经常缺乏养分,施有机肥主 Introduction It is often surprising to see some of the green leaves in rural areas, fruitful, very good coconut palm. It is not difficult to understand that these coconut trees are grown on extremely organic soils, as farmers have been accustomed to applying food debris, farm trash and ash to coconut trees. In the hot and humid equatorial zone, decomposition of organic matter quickly, the soil is generally poor, plants often lack nutrients, organic manure