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I
General Conditions I
Biological Conditions I

Soil
Type of the soil is based on a map of Tanah Tinjau Propinsi Jawa
Timur of 1966 is regosol and litosol. Matters of the kind of province
are volcanic ash and fromintermediary to basic with strict permeability
and the upper layer is very corrosive. its colors are from gray,
brown, yellowish brown to white, with soil texture commonly from
sand to ashy clay with an indenpendent structure or single fined
and an indenpendent consistency or firm tough.
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