Three-control in seedling stage: it refers to the situation that water is accused, fertilizer is controlled and overgrowth is controlled, and the soil moisture in the field is good, even if it is not too dry, it is unnecessary to water it, and the garlic planting in the north is basically covered with plastic film. In this case, it is basically watered after planting.

All-in-one seedling: All-in-one seedling and uniform growth can make garlic use photosynthesis more evenly, and maximize the utilization of photosynthesis in the field, and all-in-one seedling is also helpful for garlic covered with plastic film to choose garlic seedlings.

Two prevention measures in seedling stage: two prevention measures can be summed up as preventing rotten mother and freezing injury, and these two points are also the core tasks in seedling stage.

First, three controls at seedling stage

1, three controls are mainly to accuse water, control fertilizer and control soil growth. Generally, in the case of good soil moisture in the field, even if it is not very dry, it is not necessary to water it.

2. In addition, planting garlic in the north basically uses plastic film mulching technology, and after planting, it is basically enough to pour a crop of water, so that the moisture content of garlic is guaranteed and the seedlings will be relatively neat, which basically ensures that there is no water shortage.

3. Fertilizer control is mainly controlled by nitrogen fertilizer. If the nitrogen fertilizer is excessive, it will easily lead to excessive growth. In the garlic sowing stage, the amount of garlic fertilizer is sufficient. In this case, it is not necessary to apply fertilizer again.

4. If the yellow leaves of garlic grow weakly at seedling stage, a small amount of quick-acting fertilizer can be applied to them, so as to achieve the purpose of raising seedlings.

5. Controlling flourishing is in the case of flourishing growth. At this time, it can be sprayed with chlormequat chloride to achieve the purpose of strengthening seedlings and avoiding freezing injury in winter.

Second, Qi Miao

1, garlic seedlings, uniform growth can make it more balanced use of photosynthesis, maximize the utilization of photosynthesis in the field, and the seedlings can also help garlic covered with plastic film to pick garlic seedlings.

2. When garlic is sown, garlic seeds are deeply soaked and germinated before sowing, so that the purpose of quick emergence and germination after sowing can be achieved.

Three, two prevention at seedling stage

1, two prevention measures are mainly to prevent rotten mother and freeze injury, and these two points are also important tasks in seedling stage.

2. The rotten mother is mainly due to the poor air permeability of the soil, which leads to the decay of the vegetative body of garlic. The rotten mother of garlic will make the seedlings undernourished, grow thin and weak, and cannot survive the winter.

3. If you want to avoid this situation, don't water the garlic field too much to prevent soil hardening in the garlic field, and at the same time cultivate strong seedlings before winter.

4. Freezing injury prevention is also a major task of seedling management. Nitrogen, phosphorus and potassium fertilizers can be sprinkled before wintering, which can improve the growth state of garlic, and antifreeze water must be poured before wintering.

Fourth, prevention of pests and diseases

1, the main pests and diseases at seedling stage are black spot and root rot. The reason for these diseases is that the soil moisture is high, and on the other hand, it may be related to the seed carrying bacteria. The commonly used fungicides are chlorothalonil and zineb.

2. The pests are mainly root maggots and liriomyza sativae. The root maggots can be sprayed on the ground with conventional pesticides such as phoxim and diphacinone, or baited with trichlorfon and phoxim granules mixed with wheat bran or bean cakes, and scattered among seedlings in the evening for trapping and killing.