Abstract
Minimum or no-till seeding technology is the core of conservation tillage, which can effectively reduce soil degradation by water and wind erosion. It is an essential part of agricultural modernization. The anti-blocking technology is the key to realize minimum or no-till seeding technology. According to the principle, it can be divided into three types: straw-flowing type, gravity-cutting stubble type, and power-driven type. Emphasis is placed on the anti-blocking principle, technical characteristics, and development trends of minimum or no till seeders based on three different anti-blocking principles. In view of analyzing and summarizing the advantages and disadvantages of three technologies and typical machines, the future development trends of minimum or no-till seeders were prospected as follows: (1) strengthening research on basic theories and integration mechanisms; (2) building a big data-sharing platform for seeding operations; (3) establishing and improving specific systems of minimum and no-till seeders with China character.
Highlights
The fundamental difference between conservation tillage and conventional tillage is that the soil surface is not plowed and covered with many residues, and seeding operations are carried out on the residue-covered land [1]
Minimum or no-till seeding technology is the key to the implementation of conservation tillage technology
According to the mechanical strucanti-blocking devices, the machines are divided into straw-flowing type, gravity-cutting ture characteristics and the anti-blocking principle of seeders, and the classification of type, and power-driven type
Summary
The fundamental difference between conservation tillage and conventional tillage is that the soil surface is not plowed and covered with many residues, and seeding operations are carried out on the residue-covered land [1]. The research on the minimum or no-till seeding in China has mainly focused on anti-blocking technology and developed a series of anti-blocking devices with environmental adaptability. On this basis, theoretical innovation and structural optimization are carried out. Under the development of technology and machines, the minimum minimum or no-till seeders, gravity-cutting stubble type of minimum or no-till seeders, or no-till seeders are summarized analyzed. This reviewand points out the devel- are listed.
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