Yield easily leads to weak growth of leeks and lower quality. This is because leek is a perennial herb, and the nutritional status of the rhizome is the basis for its healthy growth and sustained high yield. Reaping the leeks reasonably can improve the nutritional status of the roots and stems of the leeks and ensure the high quality and stable yield of the leeks.
Time should be right
In early spring, the optimal harvesting interval of leeks in the greenhouse is 30-40 days. At this time, the height of the leeks plant is generally 30-40 cm, the number of leaves reaches 5-7, and the maximum nutrient content in the plant is also relatively high. , The quality and yield of leeks are in the optimal state.
Harvesting too early, the overall height of the plant and the accumulation of nutrients are not sufficient, the yield is low, and the flavor is weak; the harvest is too late, the plant is prone to lodging, the old leaves are prone to yellowing, the risk of infection and disease increases, and the taste of leeks tends to decrease.
It is advisable to use a sharp and clean sickle when harvesting. It is done in the morning or evening on a sunny day. It is best to harvest in the morning after the shed is dehumidified. It is not suitable to harvest leeks in low temperature and poor weather, because the sheds are often high humidity and low temperature in such weather, and the growth of leeks is slow and weak, and the wounds produced after harvest are susceptible to disease.
The stubble height should be moderate
The stubble height refers to the distance between the harvesting position and the upper end of the leek bulb (gourd head). The stubble height should be moderate, neither too high nor too low, 3 to 4 cm is ideal. Judging from the color of the knife edge, the section should be light yellow. If the color is green, it means that the stubble is too high, and if it is white, it means that the stubble is too low. If the stubble of leeks is too high, it will affect the yield and quality of the current leeks; if the stubble is too low, it is easy to damage the tissues of the sheath base, which will delay the harvest time of the next stubble, affect the yield of the next stubble, and reduce the total annual yield. It will lead to premature plant senescence and decreased disease resistance.
The number of harvests should be appropriate
The number of harvesting of the greenhouse leeks should be determined according to the growth of the plants, the water and fertilizer in the field, the occurrence of diseases and insect pests, and the market demand. The best harvest is 3 times throughout the winter and spring, and the maximum should not exceed 4 times, which is conducive to enhancing the stress resistance of the plants.
Greenhouse leek should avoid watering and fertilization within one week before harvesting, and strengthen ventilation and dehumidification; after harvesting, heat preservation should be strengthened in the shed, and it is not suitable to water and fertilize before the new leaves grow to 4 to 5 cm. These measures are very conducive to avoiding the occurrence of leek gray mold, conducive to the healthy growth of leek, and promoting stable and high yield.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
9371 Green Tea,Chunmee Tea Fannings,Mint Green Tea,Super Chunmee Tea
DIYAS DEVELOPMENT LIMITED , https://www.diyastea.com