Title: Spatial Distribution of Soil Nutrients in Soil Profile under Different Fertility of a Rubber Plantation
Abstract: The growth and tapping quality of rubber trees are directly affected by soil fertility. Soil fertility has decreased dramatically in the 20 years since the stimulating-tapping system was practiced. In a study reported in this paper,a preliminary analysis was made of the spatial distribution of soil nutrients in different soil profiles at a rubber plantation. The result showed that organic matter,total N and available N declined with increasing depth,while P and K had no obvious regularity in the soil profile. The content of organic matter,total N and available N were remarkably higher in the high fertility soil profile. It is concluded that N is the main factor restricting rubber yield. The distribution of organic matter,total N and available N in the soil profile reflects soil potential fertility to some extent.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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