Iron-ion supply material

Patent metadata

Field	Value
Publication number	US-10526254-B2
Application number	US-201415106429-A
Country	US
Kind code	B2
Filing date	Nov 14, 2014
Priority date	Dec 24, 2013
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

An iron-ion supply material capable of efficiently supplying iron ions to plants is provided. An iron-ion supply material that acts as an iron-ion supply source for supplying iron ions contributing to plant growth comprises an iron powder having an iron content of 80% by mass or more, wherein 50% by mass or more of the whole iron powder has a particle size of 100 μm or more and 10 mm or less.

First claim

The invention claimed is:

1. An iron-ion supply material that acts as an iron-ion supply source for supplying iron ions contributing to plant growth, the iron-ion supply material comprising
an iron powder having an iron content of 80% by mass or more,
wherein 50% by mass or more of the whole iron powder has a particle size of 100 μm or more and 10 mm or less, and
wherein the iron powder has an oxygen content of 0.4% by mass or more and 1.5% by mass or less.

2. The iron-ion supply material according to claim 1 ,
wherein the iron powder is an atomized iron powder.

3. The iron-ion supply material according to claim 1 ,
wherein the iron powder has an oxygen content of 0.6% by mass or more and 1.2% by mass or less.

4. The iron-ion supply material according to claim 2 ,
wherein the iron powder has an oxygen content of 0.6% by mass or more and 1.2% by mass or less.

Assignees

• Jfe Steel Corp

Inventors

• Enokido Hirofumi
• Sonobe Akio
• Sugihara Hiroshi

Classifications

• C05G3/70

  for affecting wettability, e.g. drying agents · CPC title

• C01G49/08

  Ferroso-ferric oxide [Fe3O4] · CPC title

• C01G49/02

  Oxides; Hydroxides {(C01G49/0018 takes precedence)} · CPC title

• C05D9/02 Primary

  containing trace elements · CPC title

• A01G22/22

  Rice · CPC title