1. No cutting
From late June to early August should stop harvesting to facilitate plant growth. Due to the high temperature in summer, nutritional accumulation is less, consumption is large, affecting the plant is slow, and the leaf tissue fiber increases, rough texture, growth shows the phenomenon of hiatus. Therefore, generally no longer harvest. Otherwise, it will affect the fall growth and yield, but also affect the life of leeks, you should strengthen the plant culture.
2. Weeding
High temperature and rainy in summer, weeds grow and affect the growth of leeks, which should be pulled out in time, or spray the ground between the rows with 25% herbicidal ether.
3. Fertilizer
Should focus on the application of bio-organic fertilizers leeks do not tolerate high temperatures, in the high temperature, dry season, leeks leaf meat tissue coarse and hard, quality deterioration, low food value. Usually this is the time to stop harvesting, and should be timely fertilizer, in preparation for autumn production. In general, summer rain is more, should not be overwatering. Fertilizer is suitable for flushing seaweed essence, which is conducive to enhancing the resilience of leeks, promoting rooting, strong plants, can be flushed 2 times throughout the summer.
4. Spreading
Because leeks will consume a lot of nutrients when flowering and fruiting, so in addition to picking seed fields, leek shoots should also be removed in a timely manner when young and tender, to cultivate high-yield plants.
5. Control wilt disease
The disease is most likely to occur in the summer high temperature season, especially after heavy rain, in the case of hot sun exposure, in close proximity to the ground, resulting in disease, and in severe cases, the whole plant withered. Management should pay attention to drainage and flood prevention, and remove yellow leaves, keep the rows well ventilated, can reduce the disease damage.
6. Leek maggot control
Summer leek maggot occurrence is more serious, pay attention to advance irrigation root control.