http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102850132-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e182da5b41a26a2216f7df72e73c5760 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-90 |
| filingDate | 2012-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bec6acbcfe1d8c7c3e3656ce29b7495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9cbb0c0650f91bab868fc4c20005a53d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8dc14853de517038ebd374cc80c4724b |
| publicationDate | 2014-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102850132-B |
| titleOfInvention | Preparation method of mechanically fertilized controlled-release fertilizer special for winter wheat |
| abstract | The invention relates to a preparation method of mechanically fertilized controlled-release fertilizer special for winter wheat. The preparation method comprises the following steps: taking urea, monoammonium phosphate, potassium chloride and zinc sulfate according to the proportion, granulating by a high tower to obtain granular core fertilizer; spraying urea solution onto the core fertilizer to form a urea film to obtain urea-coated fertilizer; taking epoxy resin and polyurethane, and adding curing agent T31, diluting agent benzyl glycidyl ether and talcum powder, mixing uniformly to obtain an outer film coating agent; spraying the outer film coating agent onto the urea-coated fertilizer to obtain three double-layer coated controlled-release fertilizer varieties I, II and III with the dosage of the outer film coating agent respectively occupying 3%, 5% and 7% of the urea-coated fertilizer; and further compounding according to the proportion to obtain the controlled-release fertilizer. The preparation method provided by the invention prepares the core fertilizer special for the wheat according to absorption requirements of the winter wheat on nutrition such as nitrogen, phosphorus, potassium and zinc; and then the double-layer coating is adopted, wherein an inner film improves surface characteristics of the fertilizer granules, and an outer film controls the nutrition release, so that controlled-release fertilizer is suitable for the nutrition absorption of the winter wheat and is suitable for mechanical fertilization. |
| priorityDate | 2012-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.