It is also an annual wheat sowing season. Every year after planting wheat, there will be a series of phenomena such as seedlings, seedlings, and death. Even if farmers later make up the seedlings, it will have a certain impact on the yield. For this problem, the following small I will tell you how to prevent it.
Reasons for yellowing, seedlings and dead seedlings in wheat seedlings:
1, variety issues
The yellowing caused by wheat varieties has 2 points. First, the purchased seeds are not suitable for local planting conditions, such as climate and temperature. The second case is to buy fake seeds.
2, land preparation problems
Before the sowing, the whole land was not well prepared, such as the land that was returned to the field, the uneven plowing and the shovel, and the repression after sowing, which caused the wheat seeds to spread on the straw, the roots were not well tied, and the nutrition was not good. Can't keep up, causing yellowing.
3. Underground pests
After the wheat seeds are planted, underground pests such as golden worms, tigers, crickets, crickets, etc., cause damage to the seeds, resulting in either no emergence, or weak yellowing after emergence. The main reason is that there is no seed dressing at the time of sowing.
4, fat damage
There are also two cases of yellowing of wheat caused by chemical fertilizers. First, the use of too much fertilizer, burning wheat seedlings; the second is the use of inferior fertilizers, such as fertilizers with biuret content exceeding the standard.
5, disease
The root rot of wheat can also cause yellowing. This kind of good judgment is to pull out the yellow wheat stalk and see if its roots rot. One of the symptoms of root rot is rotting. If it is, the main Or because there is no seed dressing.
Methods for preventing seedling yellow, slim, and dead seedlings in wheat seedlings:
1, the correct purchase of varieties
Don't be tempted to be cheap, and don't plant new varieties on a large scale. It is best to go to old farmer's stores and buy those that have already been promoted.
2, soil preparation
Before the land preparation, we must smash the straw of the former crop, the length of the smash should not exceed 5 cm, and if there are many stalks, it should be scattered in time, deep burying and buried, then rotary tilling the soil, compacting the soil, and combining the soil preparation. Apply appropriate amount of nitrogen fertilizer to avoid nitrogen competition with wheat seedlings during straw decomposing.
3. Drainage protection
Pay attention to clearing the ditch and ensuring that the energy can be discharged and the stain can be lowered. When the soil moisture is suitable, it is suitable to use the sown wheat to cultivate the loose soil, which can enhance the soil permeability, increase the ground temperature, promote the soil microbial activity, and improve the root absorption capacity.
4, do a good job of pest control
After the winter, the weather turned cold and the damage of underground pests was reduced. To control underground pests, seed dressing and soil treatment methods can be used before planting, and roots or poisonous soil can be applied after emergence. The key to prevention and control of wheat seedling diseases is the treatment of seeds before sowing, which can be prevented by seed coating agents.
In the season of wheat planting, I believe that many growers are very confused about the various problems of wheat. For the common yellowing, wheat seedlings and deadness of wheat, Xiaobian has done a finishing job for everyone in advance, hoping to reduce everyone. Problems encountered in wheat seedlings.
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