Mechanical no-tillage sowing technology in ridge area of Northeast China

Abstract: In order to establish the Northeast ridge patterns of conservation tillage technology and provide theoretical guidance for optimal design of its ancillary equipment, this paper details the status of ridge tillage development in China and some other countries to achieve conservation tillage for northeast ridge area of China. A new ridge shape was put forward based on survey and statistic analysis and the seed bed tillage geometric models and related dimensions of no-tillage sowing was set up. According to results of field surveys and test, the experiment, analysis and evaluation of two forms of no-tillage corn ridge seeder (rolling disc and strip rotary cultivation) were conducted based on the geometric models, and the results showed that the stubble cutting and clearing of rolling disc seeder can meet the requirements of ridge geometric model in corn production, but new disc coulter need to be developed to reduce working resistance and loading techniques need to be explored to ensure the demand of down pressure of the machine. This study may provide a basis and method for innovative design, improvement and evaluation of ridge no-tillage seeder.