http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109574748-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_959f3ec03275d6f5898760aa96a40c9a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05C3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05C9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-80 |
| filingDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_666ab9087cb1c8d3a96ed0a941692728 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d715c283efb28f1b34f2890add6f820 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e27d8c23dabceca1ae72e6f728bfd6b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0eafbcaf899d3af6531559276121011 |
| publicationDate | 2019-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109574748-A |
| titleOfInvention | A kind of synergistic slow-release coated fertilizer and preparation method thereof |
| abstract | The invention relates to a method for preparing a synergistic slow-release coated fertilizer, which comprises: S1: preparing a first coating material: stirring urea and 20%-40% formaldehyde solution in a reaction tank until the urea is completely dissolved, Adjust the pH of the solution to 8~9 with triethanolamine, react at room temperature for 1~2h, adjust the pH to 5~6.5, heat to 60~80°C under stirring, continue stirring, and stop heating when the reaction system is close to a gel state , prepare the first coating material; S2: prepare the second coating material: 70~99% of humic acid, 0.5~1% of activator and 0.5~29% of polynucleic acid powder are uniformly mixed according to the weight percentage to obtain The second coating material; S3: in the rotary drum, the urea master batch of particle size range 2.0mm～5.0mm is heated to 60-80 ℃, the first coating material is sprayed on the surface of the urea master batch by spraying device, Ventilation and drying to complete the first layer of coating; S4: preheating the fertilizer that has completed the first layer of coating, preheating to 40-50 ° C, and spraying the adhesive (alginic acid dissolved in an alkaline solution) onto the fluidized The surface of the fertilizer, and then the second coating material is dispersed on the surface of the fertilizer, that is, the synergistic slow-release coated fertilizer is prepared. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115180990-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111454107-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111454107-A |
| priorityDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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