Abstract:

In order to widely promote and optimize the rice straw mulching technology of peach orchards in Ningbo City, and improve the economic benefits of planting peaches, rice straw mulching experiments were conducted. Four different rice straw mulching modes: thin mulching, thick mulching, thick mulching+ripening agent+urea, and no mulching control group were set up. The changes in soil physicochemical properties and fruit yield and quality of peach trees after straw mulching were analyzed and tested, and the benefits were evaluated based on technical costs and output values. The results showed that the high-quality fruit rate, fruit quality, and yield of the thick mulching group were improved, with an increase of 692 yuan per 667 m² compared with the control group, making it the optimal straw mulching mode. Although the benefits of thin mulching treatment have slightly decreased, there has been a significant improvement in important fruit quality indicators, which is also a good mulching mode. Rice straw mulching in peach orchards not only improves soil conditions, but also has a positive impact on the quality and yield of peach trees. It is a highly promotable peach tree planting and management technology. The results of this study can provide reference for further research and technical promotion of straw mulching models in peach orchards.

Key words: peach, rice straw, soil improvement, increase production and improve quality