What to do if it rains after cotton is planted?

The rainfall during the post-sowing period will not only directly affect the emergence and uniformity of cotton seedlings, but also indirectly affect the growth quality of cotton seedlings. What is the rainfall like after sowing and what are the remedies?

Depending on whether there is a film covering.

1. Sowing of film-covered cotton after rain

1. Clean the film on the water surface in time. The sowing line of film cotton is generally about two centimeters lower than the monopoly back, and the rainfall will accumulate on the film above the sowing line, and a small ditch is formed on the film, and the slightly longer film can not bear the weight of the water surface breakage, and the rainwater will flow to the sowing line below the film, because the film humidity is too large to cause rot seeds, or induce seedling disease. In addition, the trenches above the film can affect the light transmittance and temperature of the film from the surface.

Therefore, it is important to remove the moisture from the membrane in time after rainfall.

2.Cultivating and hoeing. It is mainly ploughed between large rows to break knots, loosen soil, increase ground temperature, and promote cotton growth.

Second, the rain after sowing cotton in the open field

1.When the ground knots are knotted, the knot should be broken, the topsoil should be loosened, and the seedlings should be helped to get out of the ground.

2.However, it is necessary to distinguish the situation, such as the cotton seed has not yet germinated, and the hoeing depth cannot exceed the sowing attempt, otherwise the cotton seed will be scraped out of the ground, or move the position slightly, and the germination seedling will be alarmed; When the seedlings are about to emerge, the young roots are under the roots, and the attempt to hoe the ground can be a little deeper, but it must not hurt the young roots. Appropriate shallow weeding of three or four centimeters between the rows.

3. According to the amount of rainfall

1. A small amount of rainfall, after the rain, the surface runoff and crust will generally not be formed, and there is no need to break the shell.

2. The sandy soil or sandy loam cotton field with light texture has good permeability and limited hardness of the salt layer.

3. In the clay loam cotton field with heavy soil texture, during rainfall, due to the degree of soaking of the heavy soil, the loose state of the seed part under the soil has been destroyed, and the premature and heavy grinding will aggravate the soil board, which is not conducive to the cotton seedlings coming out of the ground; When the topsoil is slightly dry, the method of manually loosening the surface layer and the soil near the seeds can be used to break the board to help the seedlings get out of the ground.

SummaryThe size of rainfall has different effects on cotton fields with different texture types of soil, different sowing dates and different water conditions, seedling rate and seedling quality, and the remedial measures taken after rain should be targeted. The above is how to do a good job of rainfall after cotton sowing, and the remedies for rainfall after cotton sowing.

If there is already plastic film, it is necessary to remove the rainwater from the plastic film in time. After rainfall, the rainwater on the plastic film will accumulate in the mulch film above the sowing row, and a small ditch will be formed on the plastic film, and the plastic film will not bear the weight of the water for a long time, and the rainwater will flow into the sowing row below the plastic film, because the humidity under the film is too large, it will cause rot seeds, or induce seedling diseases. If the rainfall time is within 3 days before and after sowing, after the rain dries, you can use a self-made wooden or iron drum with nail teeth to gently roll to break the compaction; If the rainfall time is 5 to 6 days after sowing, after the rain dries, it can be lightly rolled by self-made edged wooden or iron rollers to break the compaction; If the rainfall time is more than 7 days of sowing, only the manual seedling placement method can be adopted to break the compaction to prevent damage to the sprouts.

In such a situation, drainage should be done in a timely manner, to ensure vitality, timely fertilization, prevention of pests and diseases, and ventilation.

It needs to be determined according to the actual situation, and this situation may lead to a decrease in the emergence rate, resulting in the uniformity of the emergence being affected, and the seedlings need to be replenished in the later stage.

1. For the planting method of mulching film, the water on the film should be cleaned up in time after the rain, because the mulch sowing row is generally lower than the ridge, and the water on the film will accumulate on the sowing row after rainfall. If there is too much water, the film can not withstand the pressure, resulting in the rupture of the plastic film, a large amount of rainwater will flow into the sowing row, and excessive humidity under the film will cause cotton rot or induce disease. There is also a point when there is water in the plastic film, which will affect the light transmittance and temperature of the plastic film, so it is necessary to clean up the technology on the plastic film in time after rainfall, and at the same time to cultivate the shallow hoe between the films, break the compacted soil, increase the ground temperature, and help the seeds germinate.

2. If it is the case of open field sowing, the first thing to do after the rain is to cultivate and loosen the soil, break the soil compaction, and help the seeds break the soil and emerge seedlings. The depth of tillage should also be treated differently, if the seeds are still germinating, the hoeing depth should not exceed the sowing depth, so as not to hoe the seeds directly out of the ground, or move the position of the seeds, affecting the emergence of seedlings. If it is one that has germinated and is about to break the soil, it can be hoeed appropriately deeper, but it can not hurt the young roots, so as not to affect the growth of seedlings or cause dead seedlings.

3. If it is a small amount of rainfall, it will not form runoff on the surface, and there is no need to break the shell yield, and the seeds can rely on their own normal seedling. If it is a small amount of hard, it can be distinguished according to the sowing time after rainfall, and within three days of sowing, it can be lightly rolled by a wooden or iron drum with nail teeth to break the soil compaction; Within 5-6 years of sowing, the ridged wooden or iron drum can be used to gently roll to break the soil compaction; If it is sown for more than a week, it is necessary to use artificial seedling placement to break the soil compaction so as not to harm the young shoots.

1.Adjust the irrigation amount: If it rains after the cotton is planted, the irrigation amount needs to be adjusted.

On the one hand, the rain already provides a certain amount of moisture for the cotton, so it does not need to drip too much; On the other hand, rain will increase soil moisture, and if you continue to drip irrigate in large quantities, it may cause the soil to become too wet, affecting the growth and development of cotton. 2.Adjust the irrigation frequency:

If the soil is still moist after rain, the frequency of drip irrigation can be appropriately reduced and the time interval of drip irrigation can be extended to avoid over-irrigation of the soil. 3.Adjust drip irrigation when Zen talks about bridges:

If there is still water on the cotton ground after the rain, you can choose to carry out drip irrigation after the weather clears to avoid the soil being too wet due to drip irrigation on rainy days. When performing drip irrigation, it is best to choose to go in the morning or evening to avoid drip irrigation during the day when the temperature is high to reduce the evaporation loss of water.

Summary. Generally speaking, after heavy rain on cotton sowing, there is no need for dripping. This is because heavy rain itself is a large amount of surface water dripping, which will nourish the soil of cotton and distribute the water in the soil evenly, thus providing sufficient water for the cotton plants to grow and develop.

In addition, heavy rain is better after fertilization, it can not only wash the fertilizer and nutrients on the soil to the depth of the cotton root system, so that the cotton can be absorbed normally, but also can improve the soil moisture of the cotton root system, improve the stress resistance of the plant, and prevent the reduction of cotton harvest due to death. Therefore, after the heavy rain is planted on the cotton sowing, there is no longer a need for dripping.

Generally speaking, after heavy rain on cotton sowing, there is no need for dripping. This is because the rain itself is a large amount of surface water dripping, which will nourish the soil of cotton and distribute the water in the soil evenly, thereby providing sufficient water for cotton plants to promote their growth and development. In addition, heavy rain is better after fertilization, it can not only wash the fertilizer and nutrients on the soil to the depth of the cotton root system, so that the cotton can be absorbed normally, but also can improve the soil moisture of the cotton celery flower root system, improve the stress resistance of the plant, and prevent the reduction of cotton harvest due to death.

Therefore, after the heavy rain is planted on the cotton sowing, there is no longer a need for dripping water.

The key is whether the rain has alkali to produce good seedlings.

Since cotton cultivation requires a lot of water, and rain is a favorable cause, it can be said that rain helps cotton to produce good seedlings. But the role of rain also depends on the pure annihilation of the rainfall and reseeding, if the rainfall is too large, it will make the cotton soil too wet, which is harmful, will cause the phenomenon of cotton seedlings deflated, affect the emergence of cotton seedlings. In addition, it is also necessary to consider the change of atmospheric temperature, if the temperature is too high, the rain is easily polluted by ultraviolet radiation, which will directly affect the growth of cotton seedlings.

In short, before cotton seedlings emerge, it is necessary to control the water source of rain keys and the atmospheric temperature to ensure the healthy growth of cotton seedlings.

I'm afraid of dripping water and rotten seeds.

Occasional rain has little effect.

If the rain is heavy, can a good seedling be produced?

If the rainfall is too heavy, it will make the cotton soil too wet, which is harmful, which will cause the phenomenon of cotton seedlings deflating and affect the emergence of cotton seedlings.

Then don't you need to drip anymore?

No. Do you wait for the seedlings to emerge and then re-water?

Cotton does not need to wait for seedlings to emerge before rewatering, but can be sprinkled before the seeds are sprinkled under the finger wheel. When sprinkling, it is advisable to be moist and not over-immersed, and generally do not exceed 10 hours before sprinkling once. After the emergence of seedlings, if the soil is dry, you can carry out irrigation to change the water to keep the soil moist.

Summary. Hello dear <>

Cotton cultivation is an agricultural technology for planting cotton, which loosens the soil in the tillage layer by mechanization, which is conducive to the growth and air permeability of cotton roots. If it rains after plowing in the cotton field, its effect is mainly in two aspects: first, the rain can moisten the soil in the cotton field, which is conducive to the growth and development of cotton.

The right amount of rain can provide the water and nutrients that plants need, promote the growth of cotton, and improve yield and quality. Secondly, rain can help infiltrate the organic matter and nutrients in the soil of the tillage layer downward, increase the fertility and water reserve of the subsoil, and is conducive to the growth of cotton roots and the absorption of nutrients.

Is it useful when it rains after plowing the cotton field?

Hello dear <>

Cotton cultivation is an agricultural technology for planting cotton, which loosens the soil in the tillage layer by mechanization, which is conducive to the growth and air permeability of cotton roots. If it rains after plowing in the cotton field, its effect is mainly in two aspects: first, the rain can moisten the soil in the cotton field, which is conducive to the growth and development of cotton.

The right amount of rainwater can provide the water and nutrients needed by plants, promote the growth of cotton, and improve the yield and quality. Secondly, rain can help infiltrate the organic matter and nutrients in the soil of the tillage layer downward, increase the fertility and water reserve of the subsoil, and is conducive to the growth of cotton roots and the absorption of nutrients.

After the seedling tillage, it rained heavily, is the tillage useful?

Cultivar tillage can loosen the soil, improve soil aeration and water permeability, promote the growth of cotton roots, and also help loosen the soil and increase soil fertility. However, if heavy rain falls after cultivating, it may lead to poor tiling results, as the rain will re-compact the soil, making it more compact, and destroying the effect of cultivating. However, if the soil texture before tillage is heavier, tillage can make the pure soil softer and drain more smoothly, which is conducive to subsequent planting management.

Therefore, it is necessary to comprehensively consider whether to carry out tillage according to the specific situation.

Do I need to plow again after the rain after cultivating?

If it rains after cotton is cultivated, if the rainfall is low and the soil is well drained, then there is generally no need to plough the land again. Because cultivating can effectively loosen the remaining soil, increase the permeability and water retention of the soil, which is conducive to the growth of crops. However, if the rainfall is large, the soil is too wet, which may affect the growth and development of cotton, and it is necessary to carry out tillage again to improve soil aeration and drainage, which is conducive to the growth of cotton.

In short, whether or not to sell ants depends on the specific situation.

If you encounter light to moderate rain, it is fine, if you encounter heavy rain, the land is compacted, after the rain to loosen the soil with three teeth in time, to ensure that the seedlings are all vigorous

Fertilizer loss after rain should be reapplied appropriately. The correct fertilization method for cotton is furrow application and then covering the soil, which has little adverse effect on cotton seedlings.

Fertilizer is applied to the field and waits for rain, and it is often found that the cotton plants are yellow after the rain, and some cotton leaves are dark green and wilted, and the leaves seem to have been boiled in boiling water. The burning of seedlings is mainly due to the decomposition of rainwater after urea application to produce ammonia. Another topdressing method is to top dressing after watering or waiting for rain to then top dressing, at this time, the soil of the cotton field is moist and easy to cultivate, but the top dressing is sprinkled on the surface, and there will be yellow seedlings or dead seedlings.

The soil is generally watered after fertilization to facilitate the dissolution and absorption of fertilizer. If it rains after fertilizing the soil, watering is also saved, and if the rain is not heavy enough to wash away the fertilizer, there is no need to remedy it.

Under normal circumstances, the concentration of cell fluid in plant root hairs is always greater than the concentration of soil solution, so the water in the soil solution penetrates into the vacuole through the cell wall, cell membrane and cytoplasm of the root hairs, and then gradually penetrates into the layers of cells in the epidermis, and finally enters the ducts, which are transported to other organs such as stems and leaves. However, if the fertilizer is too much or too concentrated at one time, the concentration of the soil solution will be greater than the concentration of the root hair cell sap, and as a result, the water in the root hair cell fluid will penetrate into the soil solution, so that the root hair cells will not only not absorb water, but also lose water, so that the plant will wilt, that is, the proverbial "burning seedlings".

Therefore, your cotton should be flooded with water to dilute the soil concentration and save some of the losses. Let's do it!