CHINESE AGRICULTURAL BULLETIN DESCRIBES MAKING GRANULAR FERTILIZER

Document Type: 
Collection: 
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
Case Number: 
Publication Date: 
June 22, 1954
Content Type: 
REPORT
File: 
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PDF icon CIA-RDP80-00809A000700190114-3.pdf88.21 KB
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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