SOIL IMPROVING MATERIAL AND CULTURE SOIL CONTAINING SAME
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United States of America Patent
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Issued Date -
Oct 22, 2015
app pub date -
Nov 6, 2013
filing date -
Nov 8, 2012
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Abandoned
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Abstract
To solve problems of perlite, zeolite and vermiculite which have been conventionally used as soil improving materials, and to provide a soil improving material which has excellent water retaining properties and is well-drained to retain air in a soil to thus make a soil suitable for plant growth, and a culture soil containing the soil improving material. The soil improving material of the invention includes porous ceramic particles having a moisture content of 5 vol % or greater at a pF value of not more than 2.7. The particles preferably have a water retaining ratio of 15% or greater. The particles preferably have a saturated hydraulic conductivity of 0.1 cm/s or greater.
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