Title:
SLOW-RELEASE FERTILIZER COMPOSITION AND SOIL
Document Type and Number:
WIPO Patent Application WO/2017/175549
Kind Code:
A1
Abstract:
Provided are a slow-release fertilizer composition which is less likely to disintegrate when absorbing water to form aggregates, can retain water and a water-soluble fertilizer active component for a long period of time, and can gradually release the water-soluble fertilizer active component; and a soil which can retain water and a water-soluble fertilizer active component for a long period of time, and can gradually release the water-soluble fertilizer active component. The slow-release fertilizer composition contains a water-retaining material consisting of an acrylic amide homopolymer having an average particle size within the range of 1 μm to 2 mm, and a water-soluble fertilizer active component which can be retained in the water-retaining material. The soil contains, in an amount within the range of 0.1-10 mass% with respect to the soil, a water-retaining material consisting of an acrylic amide homopolymer having an average particle size within the range of 1 μm to 2 mm.
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Inventors:
SHIMIZU MASAAKI (JP)
Application Number:
PCT/JP2017/010197
Publication Date:
October 12, 2017
Filing Date:
March 14, 2017
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD (JP)
International Classes:
A01G1/00; C05G3/80; C09K17/20
Foreign References:
| JPH02158686A | 1990-06-19 | |||
| US20090242833A1 | 2009-10-01 | |||
| JPH10191777A | 1998-07-28 | |||
| JP2003292957A | 2003-10-15 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
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