Method for recommending rice panicle fertilizer nitrogen based on crop model and remote sensing coupling
US12229840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2024 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Feb 20, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C21/007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rice nitrogen of panicle fertilizer accurate recommendation method based on crop model and remote sensing coupling includes the following steps: S1. constructing a basic database; S2. agricultural parameter inversion modeling based on the remote sensing vegetation index; S3. rice nitrogen nutrition diagnosis based on the nitrogen nutrition index NNI; and S4. accurately recommending panicle fertilizer nitrogen based on a crop growth model and remote sensing nitrogen nutrition diagnosis. According to the method, the rice growth trend and nitrogen nutrition estimation in the key growth period is achieved through a remote sensing inversion technology, a multi-source remote sensing inversion spatial dataset based on the rice growth trend is taken as a combination point coupling crop growth model to simulate the rice yield in real time, the rice nitrogen nutrition condition and the nitrogen demand are further combined, and the plots-level nitrogen of panicle fertilizer accurate recommendation is finally achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.