CHINESE AGRICULTURAL BULLETIN DESCRIBES MAKING GRANULAR FERTILIZER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700190114-3
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: August 24, 2011
• Sequence Number: 114
• Publication Date: June 22, 1954
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190114-3
Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190114-3
 Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190
CHINESE AGRICULTURAL, BULLETIN DESCRIBES
MAKING GRANULAR FERTILIZER
(Comment and Summary: This report is extracted from an article
in Chi Nung Tung-pao (Mechanized Agriculture Bulletin), No 47,
16 February 1953? It describes the manufacture of fertilizer from
waste vegetable matter and ammonium sulfate or lime superphosphate.
The process includes the use of simple machinery. The manufacture
and use of this fertilizer is rec amended for state farms in the
Northeast.)
Raw Materials
Organic raw materials: According to the report of the Northeast Agricultural
Science Research Institute, partially decomposed cattails or other plants gathered
from wasteland were used.
Inorganic materials: pt present, the only inorganic materials used by the
Agricultural Production Office of the Northeast Agriculture Department are
ammonium sulfate and lime superphosphate. The stickiness cF the lime super-
phosphate.cnused some difficulties in making the fertilizer.
bfachinery
At present, no special machinery is used, since only remodeled old equip-
ment is available. The folloxing are now being used: a shredder, formerly used
to prepare fodder; a mixer,formerly used to prepare large quantities of sauce,
and a gzsuu]atnr macT~of a metal plate xi~h holes drilled in the center Fnd a
wooden rim. The granulator is mounte n a Kooden frame so that it can be
shaken back and forth by nn electric motor .t
Capacity of Machinery ~ i
The shredder can handle 1.5-2.,,tons per day. The mixer can mix 1.5 tons
per day if ammonium sulfate is used and 400 to 450 lcilogrnms per day if super-
phosphate is used.
Procedure
The cattails shou2:7 have a moisture content of not more than 50 percent.
If other plant materials are used, experiments should be conducted to determine
the most suitable moisture content.
After the cattails have been thoroughly chopped, a certain amount of the
plant material .is spread on the flood and an appropriate amount of the inor-
ganic material is added. The relative proportion is determined by the use to
which t~ fertilizer i.s to be put. The Northeast Agriculture Department makes
the fcl~ ing three types:
Organi materiel, one part; lime superphosphate, one part. '
~. ~~
Organic material, one part; ammonium sulfate, on part.
Organic material, one part; iime superphosphate, one part; anmonium
sulfate, ene part.
Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190
 Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190114-3 ~
The organic and inorganic materials should be completely mixed so that
the moisture in the organic material can partially dissolve the inorganic
material an3 cause it to be adsorbed.
The thoroughly mixed fertilizer is then slowly fed into the mixer.
The fertilizer is taken from the mixer when finished and placed in the
granulator for three to five minutes. It is sifted to obtain a uniform grain
size and the unsuitable portion returned to the machine until it is of the
proper size.
The finished fertilizer is spread out to dry and is then ready to be
packed or used.
Rice husks or wheat chaff may be used as the organic material in making
a granular fertilizer but moisture must be added. Decomposed vegetable matter
or animal manure may also be used ea the organic material and wood or straw
ashes may be used as a substitute for the superphosphate.
Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700190114-3