Improvement and experiment on the device for separate application of fertilizer and seed for no-till wheat drill

There is an extremely important problem that too much maize stubble when no-till planting wheat under the bestrow of the whole standing maize stubble and maize stubble shattered in the wheat-maize double cropping situation of North China. To overcome the problem, the new combine device for separate application of fertilizer and seed narrow tone opener and double discs was designed by China Agricultural University. Field performance test of the device was done in the corn stalk standing and shattered field. The result showed that the seeding depth of each row can be controlled separately because the seeding part of the device achieved profile modeling, and improved the planted quality, meanwhile it resolved the problem of anti-blocking between planting unit. Therefore, the combine device provides good technical support for the no-till wheat planter in double cropping areas.