Method of drip irrigation under plastic film for rice cropping
US10278341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jan 4, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for rice cultivation via drip irrigation under a plastic film, comprising seed preparation, land preparation, sowing, seedling management, irrigation management, fertilization management, pest control and other steps, wherein seeding density of the sowing is 33300-36000 holes/mu, preferably 33300 holes/mu, or the seeding density is 30500-32600 holes/mu, preferably 30500 holes/mu. Previously, the conventional film with width of 105 cm or 145 cm is adopted for cotton culture stage in Xinjiang, but these films have following disadvantages: lower land utilization rate, resulting in relatively low seeding density, and difficulty in the process of adjusting row spacing and increasing seeding density, lower ground coverage rate, larger area of open ground, causing more weed relatively. Therefore, using wide film cultivation obtains relatively high yield if other planting conditions are the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.