In recent years, the area planted with garlic has increased compared with the previous one. This is because the same one mu of land, the income from planting garlic is higher than that of the wheat and corn crops. This is in the case of normal market conditions, but garlic For field crops, the technology needed is more complicated. Some growers find that their own garlic does not sprout or yellow after emergence. What is the reason? Let's take a look at it.
Garlic seedlings common problems
In fact, many growers often find their own garlic in the field. Some plots are growing well, but some of the plots of garlic are not seedling, the emergence of seedlings is slow, and some of the garlic seedlings have become yellow. What are the reasons for this? How to prevent and prevent it? ?details as follows.
First, the garlic is not uniform
1, garlic problems
Due to the uneven seedling caused by garlic problems, it is a very common factor. For example, when selecting seeds, some garlic with small, dry and cracked garlic cloves are accidentally mixed in, and after sowing, they will be affected by the emergence. The influence, but the growers with garlic planting experience, when choosing garlic cloves, generally choose garlic cloves and garlic cloves as seeds, and in the decontamination work, do relatively fine.
2, water and fertilizer problems
Compared with other crops, garlic has a relatively weak water absorption capacity. In this case, if the water and fertilizer in the field are insufficient, the garlic can effectively absorb less. In this case, it will affect Emergence, but the water in the field should not be too much. Some growers will choose to pour water once after sowing. If the flooding is done, the water in the field will not go down for a while, it will also affect the emergence of garlic, resulting in emergence. Qi.
3. Soil problems
There are two main problems in soil. One is clayy land, which is not conducive to growth compared with sandy soil. The second is due to a certain plot, planting a certain crop all year round, plus a large amount of pesticides and fertilizers. The soil has been squashed or barren, which is not conducive to the growth of garlic.
Second, the garlic sprouts slowly
Garlic sprouts slowly and the garlic above is not ripe. In fact, some reasons are the same, but the garlic sprouts slowly, not necessarily out of the seedlings, and the garlic that is not ripe is not necessarily slow, see the specific reasons.
1, sowing too deep
The sowing depth of garlic is generally 3-5cm. If there are special circumstances, it can be deepened properly, but not too deep. If the garlic is soaked deep, the seedling will be slower than the normal seeding depth if the water and fertilizer conditions are better. In a few days, if the water and fertilizer conditions are not good, it is very likely that there will be no emergence.
2, soil compaction
After the garlic is planted, whether it is irrigation or watering, there is no problem with moderate rainfall. Once the water is too much, after the weather is fine, there is a possibility that the field will be knotted, and if the soil is not compacted, First, it will affect the speed of garlic emergence, and second, it may lead to no emergence.
3, the mulch
After the garlic is planted, it will basically cover the mulch film, and some garlic may not be very strong in vitality. It is impossible to eject the mulch film on its own. At first glance, it seems that there is no emergence. In fact, the garlic has emerged and needs to be artificially puncture the mulch. Garlic seedlings are drilled out.
Third, garlic seedlings yellow
1. Pests and diseases
When the garlic is yellow after emergence, the first thing that comes to mind is caused by diseases or insects, such as the harm of some underground pests (or garlic), or the harm of some bacterial diseases. Generally, the probability of occurrence in years with excessive rainfall is large. There is also no seed dressing before sowing, which will increase the risk of pests and diseases.
2, fat damage
When the application of nitrogen fertilizer in the field is too much, a certain amount of ammonia gas will be produced when the temperature is high. In this case, the garlic or the garlic seedlings that have emerged may be poisoned. When viewed from the outside, it is yellow. . Therefore, in the application of base fertilizer and topdressing, the nitrogen fertilizer should not be too much, but also pay attention to the yellowing caused by deficiency, NPK, and trace elements such as calcium and magnesium.
3, heavy
If a piece of land has been planted with garlic for many years, the chance of yellowing will increase greatly, affecting not only the yield but also the quality. In addition, the resistance of garlic itself is weakened, and other series of pests and diseases are more harmful. It causes yellowing, so after this happens, pay attention to the cropping.
The above content details the reasons for the uneven emergence of garlic, the slow emergence of garlic, the yellowing of garlic after emergence, and the precautions. It can be seen that some of the reasons are the same, which requires us to take precautions during the planting process. . I hope that the content shared by Xiaobian can help the majority of garlic growers.
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