Scientific harvesting method of leek

The harvest time of leek should be suitable, generally 4-5 times a year and 2-3 crops before June in spring. Summer cultivation of leek to high yield is mainly to raise roots, so that plants produce more tillers, so generally do not harvest, to lay the foundation for high yield in autumn. Generally, 2-3 crops can be harvested in autumn. if there are too many harvests, it will lead to premature senescence and reduce the yield and quality of leek. In winter, the harvest of leek was stopped 30-40 days before wilting, so that the rhizome could accumulate more nutrients and create conditions for plant overwintering and growth in the coming year. When harvesting leek, the height of the stubble should be appropriate, and the stubble should not be too low. Generally, it should be harvested about 4 cm from the ground at the rhizome, and the knife edge should be yellow. After each harvest, the knife edge should be slightly raised. It is not suitable to fertilize and water within 2 days after harvest, lest the knife edge infect germs in the air and cause diseases and insect pests, resulting in rotten roots.