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Name: Kimeng
Status: other
Grade: 12+
Location: Outside U.S.
Country: Cambodia
Date: Summer 2011


Question:
How many types of soil for growing rubber tree?



Replies:
Rubber trees grow in most tropical soils: http://www.socfinal.lu/Public/Page.php?ID=1530&ancestor1=1079 but not wet, boggy, peaty, or rocky soils.

Sincerely, Anthony R. Brach, PhD Missouri Botanical Garden Harvard University Herbaria


The following website provides a good synopsis of the soil types suitable for rubber tree cultivation in Cambodia:

http://www.utafoundation.org/utacambod/msc99thes/meanlitr.htm

Any given soil is comprised of three fractions: sand, silt, and clay. The relative proportions of these three (in % terms) indicate the soil texture. Soil texture describes the overall properties of the soil, such as water retention/drainage, nutrient holding capacity, and tendency to compact, etc.

The term “loam” indicates a relatively equal proportion of sand, silt, and clay. A clay loam would denote a slight clay bias.

Note that it is very beneficial to intercrop with starchy vegetables and legumes during the "lag phase", the time it takes rubber trees to reach maturation. During this phase, rubber trees provide no economic return (~8 years). Intercropping can enhance fertility and provide a useful alternative income stream.

Dr. Tim Durham Instructor, Office of Curriculum and Instruction University Colloquium Department of Biological Sciences Florida Gulf Coast University



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