Agriculture Reference
In-Depth Information
Table 2.2 Patents on inputs that fall into Category 2 (nanoscale additives)
Nano-
content
Claim
a
Patent title
Ref.
Ag
Liquid complex fertilizer
which contains nanosilver
and allicin and preparation
method thereof to provide
antibacterial effects thus to
increase crop production
Incorporating nanosilver with
a fertilizer increases crop
yields by reducing loss
Kim (
2005
)
Nontoxic pesticides for crops
containing nanosilver and
growth-promoting material
and use thereof
Nanosilver mixed with
growth promoters and plant
nutrient materials can be used
as a fertilizer
Yoon (
2005
)
Method for preparing silver
nanoparticle and method for
promoting seed germination
and growth and development
of seedling of cucumber with
the silver nanoparticle
Biocompatible silver
nanoparticles (20 nm) are
prepared by using amino
acids as reducing agents dur-
ing synthesis. Claims that
exposure to these silver
nanoparticles improved
cucumber seedling
germination
Xia et al. (
2013
)
Au
Method for cultivating grape
containing gold nanoparticles
Aqueous fertilizer containing
gold nanoparticles and sulfur
produces grapes containing
gold nanoparticles. Claims of
human health benefits
Um and Jong
Tae (
2010
)
Al
Production process for
mixing polymer of nano-
subnano grade marsh dregs-
gangue compound
Composite nanoparticles
(50-200 nm) of kaolin, fer-
mentation residue, Al
2
O
3
,
and SiO
2
are prepared by acid
digestion of the mixtures. The
particles can be used as a
water-retaining additive or as
a controlled-release coating.
Cross-listed in Category 2 Si
and Category 3 kaolin
Zhang
et al. (
2005b
)
Bentonite
clay
Nanoscale biological/
organic/inorganic compound
fertilizer
A nanogranular bentonite
clay binder material mixed
with a compound fertilizer
and nitrogen-fixing bacteria
imparts improved stress
resistance and higher fertility.
Could potentially be cross-
listed under Category 3
Tan et al. (
2008
)
(continued)
