http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112763427-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-1797 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-25 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-25 |
| filingDate | 2020-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112763427-B |
| titleOfInvention | Crop growth and fertilization diagnosis simulation method coupled with remote sensing nitrogen information |
| abstract | The invention belongs to the technical field of remote sensing agricultural monitoring, and relates to a crop growth and fertilization diagnosis simulation method coupling remote sensing nitrogen information. Firstly, constructing a time sequence smoothing curve of the nitrogen content of the canopy in the crop growth period, and then filtering and smoothing the time sequence curve by adopting a Savitzky-Golay filter; based on the nitrogen vertical distribution model, reducing the total amount of canopy nitrogen inverted by remote sensing to the content of leaf nitrogen; coupling the nitrogen content of the leaves to a leaf photosynthesis mechanism model, wherein in the crop model, a Farquhar photosynthesis mechanism model is mostly adopted by a photosynthesis productivity simulation module; calculating to obtain the critical nitrogen content under the current crop growth condition, and further calculating the nitrogen nutrition index by using a formula 2: the method provides a coupling way of remote sensing canopy nitrogen content and a photosynthesis model, so that the actual effects of original soil fertility and farmer fertilization on crop growth are reflected in the model, the calculation bottleneck that the data are difficult to obtain in a regional scale is avoided, the model precision is improved, and the application environment is friendly. |
| priorityDate | 2020-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID947 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419556970 |
Total number of triples: 13.