Leek, also known as lazy vegetables, can be harvested continuously for many years when planted once, and is rich in nutrients, has very high edible value and medicinal value, and is deeply loved by consumers on the dining table. Many people like to plant leeks, but many people will grow and weaken after harvesting when planting leeks, resulting in a serious reduction in the yield and quality of leeks.
So how to grow green and thick leeks, I have a lot of experience in the cultivation of leeks, and I will teach you 5 tips to help you grow high-quality leeks. You can collect it for later use, and it's all a practical and real technology.
Leeks have strong fertilizer tolerance, only sufficient nutrients ** can meet the continuous growth of leeks stems and leaves, if the soil nutrients are scarce, then leeks will grow very weak. Therefore, when we plant leeks, it is best to do "knife top dressing", that is, every time the leeks are harvested, top dressing is carried out once.
We try not to apply chemical fertilizer when planting leeks, the nutrients of chemical fertilizer are single, and the taste of leeks grown with chemical fertilizer is relatively poor, while the nutrients of farmhouse fertilizer are complete, the fertilizer effect is long-lasting, and the taste of leeks grown with farmhouse fertilizer will be better.
So which kind of farmhouse fertilizer is the best to grow leeks?The best farmhouse fertilizer for planting leeks is sheep manure, the organic matter of sheep manure is as high as about 24%, and the effect of sheep manure to prevent soil compaction is very good, using sheep manure to plant leeks can promote the development of root system, and leeks will grow green and stout;When topdressing leeks with sheep manure, we can ditch between two rows of leeks to improve nutrient utilization.
Leeks are perennial root plants, and theoretically can be harvested for seven or eight years in a row when planted once, but generally speaking, leeks are planted.
After four or five years, there will be a serious decline in yield and quality, which is caused by the aging of the root system of the leeks and the reduction of the nutrient absorption capacity caused by the entanglement of the root system of the leeksAt this time, we only need to dig out the roots of the old leeks and transplant them again, so that the leeks with aging roots and poor growth can be rejuvenated.
Specific operation method: the root system of leeks can be transplanted all year round when the soil is not frozen, and we must choose the soil that has never been planted with leeks when transplanting, so as to reduce the harm of leek maggots;Before transplanting the old leek roots, we need to cut the ends of the fibrous roots of the leeks short, which can not only prevent the nest roots of the leeks, but also promote the regeneration of the leek root system.
Leeks can be transplanted after sowing (mid-March to mid-April, mid-June to early July), or directly from leek roots.
We try not to harvest the transplanted leeks that year, so as to promote the accumulation of nutrients to the roots, which can play the role of "raising roots and protecting the roots", and raise the root system of the leeks well, so the leeks will grow more vigorously in the next year.
Special attention: leeks will be pumped in summer to bloom and set seeds, for leaf leeks we should remove leek flowers in time, which can reduce the waste of nutrients and promote the vigorous growth of leeks after autumn.
Leek maggot is the main pest that harms the growth of leeks, it will bite the bulb of leeks, which will cause the leaves of leeks to turn yellow and grow weak, and in severe cases, they will cause leeks to wither yellow and die.
Therefore, we must pay attention to the prevention and control of leeks when planting leeks, we can sprinkle grass ash on the roots after the leek is harvested, which can effectively prevent the breeding of leeksFor plots with serious damage from leek maggots, we can also irrigate the roots with 1000 times of 80% trichlorfon soluble powder, which can effectively kill leeks in the soil.
During the growth process of leeks, new roots will continue to grow from the base of the bulb plate, and the root system of leeks will be exposed to the surface after a long time, commonly known as "jumping roots". When the root system of the leek is exposed to the surface, its ability to absorb water and nutrients is reduced, so that the leek grows longer and weaker.
The height of the leeks jumping roots is about 1 2 cm every year, so we can carry out soil cultivation once a year when planting leeks, and do not bury the leaf sheath of leeks when cultivating soil, which can not only loosen the soil, but also play a role in "raising roots and protecting roots" for leeks, which can improve the regeneration ability of leeks.
For leeks planted in pots or foam boxes, if it is not convenient for us to cultivate soil, then we can sprinkle a layer of 3 cm thick fine soil in the pot or foam box, which can effectively prevent the leeks from jumping roots.
In summary, many people like to plant leeks, but it is not easy to plant leeks well, as long as we do the above 5 points when planting leeks, then the leeks will grow thick green and thick.