Agriculture Reference
In-Depth Information
Table 2.3 (continued)
Nano-content
Claim
a
Patent title
Ref
Novel sustained-release
nanosized fertilizer and pro-
duction method thereof
A nanofertilizer is produced
by microemulsification,
high-speed shearing, and
“particle-guiding and vari-
able speed technique” and is
covered in a “release-sus-
taining nano-film” of cellu-
lose by cementation. The
release rate and time of the
nanofertilizer can be altered
based on the growth cycle of
the crop
Lin (
2008
)
Nanocomposite
superabsorbent containing
fertilizer nutrients used in
agriculture
Using granularization,
extrusion, and pelletization,
“nanocomposite
superabsorbent polymer”
particles containing fertil-
izer can be isolated. This
fertilizer helps with slow
release and water retention.
(Cross-listed with Category
3 zeolites)
Barati (
2010
)
Si
Special rapeseed fertilizer
and preparation method of
special rapeseed fertilizer
Quartz sand was sintered
after adding oil of winter-
green, ground into
nanopowder, and then mixed
with ash to form a fertilizer
carrier. No size information
given. Claims of improved
efficiency
Liu and
Wangquan
(
2012
)
Ximaxi (Chi-
nese clay)
Preparation of Ximaxi
controlled-release fertilizer
A composite fertilizer is
granulated to form spheres
and is coated with a nano-
scale clay film to improve
fertilizer efficiency
Li
et al. (
2002
)
Zeolites
Long-acting additive for
composite fertilizer
When urease inhibitors and
nitrification inhibitors
adsorbed onto nano-zeolite
are used as a fertilizer addi-
tive, nutrient loss is
minimized
Guo (
2007
)
Complete plant growth
medium comprised of natu-
rally occurring zeolite
coated with nanophase iron
oxide and dosed with
nutrients
Cross-listed to Category
2Fe
Vempati
(
2008
)
Nano-diatomite and zeolite
ceramic crystal powder
Cross-listed to Category
3 diatomite
Yu (
2005a
)
(continued)
