Design of Corn Precision Seeder under Film Based on Combination of Agricultural Machinery and Agronomy

Aiming at problems of traditional mulch film covering，such as manual seedling release，emergence dislocation，easy compaction，and low emergence rate，an agricultural machinery and agronomg combined under film sowing machine was developed.Corn planting experiments were carried out using three planting modes：drum planting on the film，sowing and spreading film without perforation，and sowing and spreading the film.Results showed that relative emergence rate of corn planted by film spreading and film breaking after planting was the highest，which was more than 90%.Among the experimental factors，the thickness of soil under film and thickness of soil on film have the greatest influence on emergence rate.The best effect of corn emergence was when the thickness of soil under membrane was 2cm and the thickness of soil above membrane was 2cm.Combined with the local rainfall，a spray test was conducted，under the same rainfall，the anti-consolidation ability of seeding under film far exceeded that of traditional mulching.