What are the main problems in the process of implementing conservation tillage?

Whether the concept and propaganda of (1) conservation tillage is suitable for China's national conditions has been controversial. Some people think that conservation tillage is not suitable for popularization in China, and that conservation tillage reduces the yield and is not suitable for China's national conditions with a large population and little land. Only intensive cultivation, continuous deep cultivation, deep loosening and intertillage; Conservation tillage needs a lot of herbicides, which farmers can't afford and pollute the environment; The traditional ideas in the minds of managers, scientific and technological workers and farmers in China, coupled with the lack of scientific guidance and insufficient experimental demonstration and publicity, have seriously affected and restricted the popularization and application of conservation tillage.

(2) The area and scale of promotion have not been determined, which will affect the corresponding financial and technical support and policy formulation. When planning the regional scope of conservation tillage, priority should be given to areas with serious soil erosion, areas with significant increase in production and efficiency, and areas that are easy to achieve large-scale management.

(3) Supporting machinery problems Conservation tillage technology relies more on agricultural machinery than traditional tillage, and conservation tillage requires higher quality and use technology of agricultural machinery. The matching machines and tools used abroad are not suitable for the national conditions of small plots in China. However, the corresponding research on conservation tillage machinery in China has made a small breakthrough, and there are some problems such as unsuitable conservation tillage machinery, lack of special supporting machinery for different crops, low sowing accuracy and poor sowing quality of existing machinery, which lead to uneven emergence of seedlings, which affects the application and popularization of conservation tillage.