A no-tillage wheat planter with adjustable straw coverage

Abstract

The invention relates to wheat seeders in agricultural machinery, and discloses a non-tillage wheat seeder with an adjustable straw mulching quantity for full-straw mulched lands. The non-tillage wheat seeder is characterized in that a rotary arbor (7) of a straw smashing cleaning machine is connected with a power output shaft of a tractor, and a transverse auger (2) is arranged behind straw smashing cutters; adjusting gaps are transversely formed in an upper cover face plate (7a) among the straw smashing cutters and the transverse auger (2), an adjusting seat strip (1a) is fixed to a side of each adjusting gap, and rectangular adjusting plates (1) are inserted into the adjusting gaps and are fixed onto the adjusting seat strips (1a) by the aid of bolts; a plurality of screw holes are formed in the adjusting plates (1), and the bolts are connected with the screw holes in different positions, so that the insertion depths of the adjusting plates (1) can be changed, smashed straw which is fed into the transverse auger (2) can be stopped, and the quantity of the smashed straw can be adjusted; fans are configured at an output end of the transverse auger (2), the straw can be rearwards conveyed to the upper side of a wheat fertilization seeder (4) via a pipeline (3), and the wheat fertilization seeder (4) is configured behind the transverse auger (2). The non-tillage wheat seeder has the advantages that a proportion of the quantity of straw returning to fields to the mulching quantity can be changed, and problems in the aspects such as completely returning straw to fields or completely mulching the straw on lands can be solved.

Description

technical field [0001] The invention relates to a seeder in agricultural machinery, in particular to an improved mechanism of an operation machine suitable for no-tillage sowing of wheat after harvesting previous crops of corn, rice and cotton. Background technique [0002] In my country's corn-wheat, rice-wheat, and cotton-wheat rotation areas, it is necessary to sow wheat in time after the previous crops of corn, rice, and cotton are harvested. Since there are a large amount of corn, rice, and cotton straw left in the field after mechanized harvesting, it is necessary for the next crop of wheat to be mechanized. Sowing brings greater difficulty. [0003] Patent No. 201210397462.2 "A Multifunctional Unit for Shredded Straw, Straw Clearing, Fertilization, Sowing, and Straw Covering" is disclosed. When the previous stubble is corn, rice and other crops with a large amount of straw, the seeds are sown and the crushed straw is covered, which solves the current problem. There ar...

AI Technical Summary

Problems solved by technology

[0004] 1. After all the straw is returned to the field, the nitrogen in the soil is insufficient, which makes the microorganisms compete with the crops for nitrogen. As a result, the straw decomposes slowly, and the wheat seedlings turn yellow due to nitrogen deficiency, the seedlings are weak, and the growth is poor; the soil becomes too loose and the large pores are too large. If there are too many, it will cause the wind to lose moisture, affect the germination and growth of seeds, and make the roots of wheat not firmly rooted and hang roots

[0005] 2. Excessive straw coverage can easily lead to low low temperature in the early stage, which affects the supply of nutrients; when the fertility is low or no fertilization is applied, the seedlings will not grow well, resulting in yellow and weak seedlings, delaying the growth and development of seedlings, and even dead seedlings

Images