Cutting leeks with exquisite
2022-11-08 13:06:41
The leek grows continuously in the greenhouse, so the vegetable growers generally adopt more ways to increase the harvest rate to obtain more output. However, this practice tends to weaken the growth of the leek, reduce the quality, and even cause the disease to increase. Reasonable harvesting of leeks can improve the nutritional status of leeks and roots, promote the stable and healthy growth of leeks, and ensure the quality and stability of leeks.
Harvest time Optimum harvest time interval for greenhouse leek is 30 to 40 days. At this time, the height of leek plants is generally 30 to 40 cm, and the number of leaves reaches 5 to 7 pieces. The content of various nutrients in the plant body is also relatively high. And the output is in the best condition. Harvesting is too early, the plant height and nutrient accumulation are still insufficient, and the yield is low. When the harvest is too late, the plants are easy to fall down, the old leaves are easily yellowed, and the risk of infection increases. In the case of diseases such as gray mold in the field, if the plant height has exceeded 25 cm, comprehensive consideration of various factors can lead to early harvest, which is conducive to the prevention and control of diseases and the relative stability of the overall yield.
When harvesting, sharp and clean trowels should be used. It should be done in the morning or in the evening on sunny days. It is best to harvest in the morning in the shed. In the early morning, the leek is rich in water, erect and straight, and the leek is fresh and crisp after harvesting. The flavor is rich, the storage and transportation time is short, and the yield and quality are relatively good, which is conducive to sales. Low temperature and low temperature should not be harvested, because the weather in the shed is often high humidity and low temperature, the production of leeks is slow, growth is weak, and wounds produced after harvest are susceptible to diseases.
The height of stubble should be moderate. The stubble height is the distance between the harvesting position and the upper end of the leek bulb (height head), and the height is preferably 3 to 4 cm. Judging from the color of the knife edge, it is appropriate to have a light yellow section. If the color is green, it means the stay is too high. If it is white, it means that the stay is too low. If the leeks remain too high, the yield and quality of the leeks will be affected. If the pods are too low, they may damage the tissues of the sclerophyllous base. This will delay the harvest time, affect the production of diarrhea, and reduce the total output of the whole year. It will lead to premature aging of the plant and its disease resistance will decline.
The number of harvests to be properly harvested should be based on plant growth, field water and fertilizer, occurrence of pests and diseases, and market demand. It is best to harvest 3 times in the entire winter and spring season, and it should not exceed 4 times at most.
Post-cut management should be appropriate to the greenhouse before the harvest of leek should avoid watering and fertilizing, strengthen ventilation and dehumidification; harvest, the shed should be strengthened insulation, the new leaves grow to 4 to 5 cm before the water should not be fertilized.
Harvest time Optimum harvest time interval for greenhouse leek is 30 to 40 days. At this time, the height of leek plants is generally 30 to 40 cm, and the number of leaves reaches 5 to 7 pieces. The content of various nutrients in the plant body is also relatively high. And the output is in the best condition. Harvesting is too early, the plant height and nutrient accumulation are still insufficient, and the yield is low. When the harvest is too late, the plants are easy to fall down, the old leaves are easily yellowed, and the risk of infection increases. In the case of diseases such as gray mold in the field, if the plant height has exceeded 25 cm, comprehensive consideration of various factors can lead to early harvest, which is conducive to the prevention and control of diseases and the relative stability of the overall yield.
When harvesting, sharp and clean trowels should be used. It should be done in the morning or in the evening on sunny days. It is best to harvest in the morning in the shed. In the early morning, the leek is rich in water, erect and straight, and the leek is fresh and crisp after harvesting. The flavor is rich, the storage and transportation time is short, and the yield and quality are relatively good, which is conducive to sales. Low temperature and low temperature should not be harvested, because the weather in the shed is often high humidity and low temperature, the production of leeks is slow, growth is weak, and wounds produced after harvest are susceptible to diseases.
The height of stubble should be moderate. The stubble height is the distance between the harvesting position and the upper end of the leek bulb (height head), and the height is preferably 3 to 4 cm. Judging from the color of the knife edge, it is appropriate to have a light yellow section. If the color is green, it means the stay is too high. If it is white, it means that the stay is too low. If the leeks remain too high, the yield and quality of the leeks will be affected. If the pods are too low, they may damage the tissues of the sclerophyllous base. This will delay the harvest time, affect the production of diarrhea, and reduce the total output of the whole year. It will lead to premature aging of the plant and its disease resistance will decline.
The number of harvests to be properly harvested should be based on plant growth, field water and fertilizer, occurrence of pests and diseases, and market demand. It is best to harvest 3 times in the entire winter and spring season, and it should not exceed 4 times at most.
Post-cut management should be appropriate to the greenhouse before the harvest of leek should avoid watering and fertilizing, strengthen ventilation and dehumidification; harvest, the shed should be strengthened insulation, the new leaves grow to 4 to 5 cm before the water should not be fertilized.
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