Pay attention to cotton peach falling, how to prevent cotton peach falling?

When planting cotton, we must choose the soil is relatively fertile and broad, and we must use farmhouse fertilizer when fertilizing, never use the fertilizer bought outside, and often water the plants, but also to prevent the occurrence of pests and diseases, if there are small insects, then we must spray insecticides in time. I think that if we can do a good job in these aspects, we will definitely be able to prevent cotton from falling peaches.

First of all, we must choose some high-quality varieties, and then we must choose the right fertilizer, do not use organic fertilizer, you can choose some nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, you can choose the way of extra-root fertilization, and then do not plant on a large scale when planting, usually must be watered less, not too much water, and ventilate in time.

Control the factors of production, don't use too much, pay attention to extra-root fertilization, water factors, do not peel the film during the whole growth period, and improve fertilizer technology, you can prevent and control cotton peach.

1. For the phenomenon of defertilization and premature senescence in barren cotton fields or cotton growth stages, topdressing should be carried out outside the roots.

2. For the phenomenon of fertile cotton field or cotton growth, it can be controlled by fertilizer water, cultivating, pruning and topping and spraying hormones. The specific use of hormones or method is: in the flowering and boll stage, use a mixture of 60,000 times of 40% gibberellin soluble granules and 30,000 times of 50% chlormequat aqueous solution, spray once every 7 days, spray 3-5 times in a row, and spray about 50 kg of cherry jujube per mu each time.

3. Pay attention to drought prevention and drainage in a timely manner.

4. Strengthen the comprehensive control of pests and diseases.

You can put a bag on top of the cotton to reduce the light, and you're good to go, or add some boron fertilizer and use drip irrigation.

The best way is to control the amount of watering, too much watering is easy to grow, and it is easy to fall peaches.

You can clean the drainage ditch in time before and after the rain to ensure that there is no water in the field, take care of the excess or sick branches and leaves in time, dry more cotton in sunny weather, be sure to treat insects, spray pesticides in time, and pick rotten peaches.

Try to use farmhouse fertilizer, can ensure the rapid growth of cotton seedlings, after hospitalization can choose different agents for prevention and control, Verticillium wilt generally begins to develop at the stage of 4 6 needles, in order to avoid migration and spread, you can choose some special agents for prevention and control.

Before and after the rain, you can clean the drainage ditch in time to ensure that there is no stagnant water in the field, take care of excess or sick branches and leaves in time, dry more cotton on sunny days, be sure to prevent insects, spray pesticides in time, and pick up rotten peaches.

Control the temperature and humidity of the soil, you can also use pesticides to control the incidence of pathogenic bacteria on cotton seedlings, and the land for seedlings should be changed every year, and it is best to use farm fertilizer to ensure the healthy growth of cotton seedlings.

Various agricultural measures are adopted to control the disease resistance of cotton seedlings in the environment of cotton seedling growth and development, which can reduce pathogenic bacteria in the land and reduce the incidence of cotton seedlings. The land for raising seedlings should be changed every year, if the seedlings are raised in this piece of land this year, it will be changed to another piece of land next year to raise seedlings, and sufficient farm fertilizer should be applied to ensure the rapid growth of cotton seedlings.

If the cotton is damaged before it emerges, it can cause seed rot. After the emergence of seedlings, reddish-brown cracked female spots occur at the base of the stem, and the development of shrinkage will cause the death of seedlings. Yellowish-brown round or semicircular spots appear on the edges of the cotyledons, which dry and fall off, and the cotyledons appear mutilated at the edges.

Chemical control is a quick and easy to choose control method, you can choose different agents for different pests and diseases, such as aphids can choose to use dimidoxam, pymetrozine, anti-aphid, imidacloprid, acetamacim, etc., cotton bollworm can choose to use chlorantranyl potassium ammonium, emamectin louse mite urea, emamectin indocarb, etc.

Verticillium wilt generally begins to occur at the stage of 4 6 true leaves, light yellow patches appear between the leaf margins and leaf veins on the lower leaves of the plant, and then gradually expand, the leaf color loses green and becomes light, the main vein and its surroundings are still green, the diseased leaves appear palm-shaped mottled, the leaf edges are curled downward, when the summer rainstorm comes, the cotton plant will suddenly wilt, and the leaves fall off in large quantities. Cotton aphid is common in cotton fields and is unevenly distributed in time and space in cotton fields. A large number of plots have occurred, and convective oil and leaf curls as well as localized oil and leaf curls should be controlled in time to control the migration and spread of winged aphids.

Fluridines, pymetrozines, chlorothiazide, bifenthiaxam and other special agents are used for prevention and control.

Blight is a disease that is more harmful at the seedling stage of cotton, and it is easy to cause this disease at low temperature and high humidity, and it rarely occurs when the ground temperature reaches more than 23. The prevention and control method is mainly to take pesticide seed dressing, with 250 grams of seed dressing, or 150 grams of carbendazim, dixone, dry Biqing and other pesticides to prevent and control blight. Timely seedling, diseased seedlings, dead seedlings centralized destruction.

Take control of the humidity in the field. Severe humidity is the root cause of cotton rotten, and controlling humidity can be avoided as much as possible.

Be sure to control the temperature, and be sure to water more and fertilize more, and keep more than 5 sun exposures a day.

Unclog the gutters. Before and after the rain, clean the drainage ditch of the cotton field in time, and require the ditch to be unblocked, so as to ensure that there is no stagnant water in the cotton field and no blockage of the ditch when it rains; After rain, it can discharge open water relatively quickly, effectively reducing the groundwater level of cotton fields.

First of all, cotton is a herbaceous plant, has a high planting value, is one of the world's important cash crops, often high clothing content and high yield is the pursuit of cotton farmers, but a piece of land with the continuous planting of cotton for a longer time, the disease will become more and more serious, so we must consider the problem of disease resistance, cotton pathogens mainly exist in the soil, it spreads with water, spreads quickly, so that the cotton roots are damaged, resulting in the death of the whole plant. To reduce the spread of diseases, in addition to various protective measures, use atmospheric drip irrigation to prevent the spread of germs with water, and pull out the diseased plants in time and take them out of the ground for deep burial.

Since the local planting mode is high-density planting, the general sowing density is 15,000 20,000 plants, and if you want to achieve more boll and big boll for cotton, you must choose varieties with good ventilation and light transmission, so as to lay the foundation for high yield. The fertilizer focus is on nine words: eat well, eat well, and manage well.

Fertilizer must be sufficient, don't be fooled by those fools say that a certain fertilizer is good, and then you can get a great yield on the last point, and you must manage the cotton like your own children.

Cotton has a particularly high demand for light, so try to choose a place with relatively flat terrain and high light intensity during planting. In order to accompany us to the organic store for convenience, we can use the prepared fertilizer, smash it into the ground according to the method of use, and blend it with the soil. Regardless of the sowing date or which planting method is adopted, the general cotton needs to know that the whole seedling work is done before April, and after the whole seedling work is done, we carry out top dressing and irrigation according to the specific situation of the cotton field, and do a good job in preventing cotton aphids and other pests and diseases.

The growth cycle of cotton from sowing and emergence to cotton boll maturity and flocculation is generally 150 200 days. According to the changes in the formation of its growth period, it is usually divided into seedling stage, bud stage, flower boll stage and mature spitting stage, these four periods reflect the characteristics of cotton growth and development stage Seed concentrate selection: cottonseed should be selected, remove deflated seeds, large hairy seeds, light seeds, and the germination rate is not less than 90.

Pruning and foliage. Pruning and defoliation in the late stage of cotton growth can not only reduce nutrient consumption and save nutrients, so that nutrients can be supplied to peaches in a centralized manner, but also reduce the degree of shade in the field, which has obvious effects on controlling rotten peaches. In the later stage, the focus should be on the cotton field that grows more violently and closes the line early and heavy, and it is necessary to seize the time to knock off the old, weak, diseased, and yellow leaves of the lower part of the main stem, and open the "skylight" in a timely manner, that is, to remove the leaves on the upper part of the main stem, cut off the leaf branches and empty fruit branches in time, and the axillary buds should be beaten with the sight, and the removed branches and leaves should be brought to the field for processing, and the cotton peach buds can be removed if necessary.

When the cotton blooms, it is necessary to prevent pests, and the cotton must be dewormed in time, so as not to let the cotton peach rot.

Spray some related pesticides, but also to prevent pests and diseases in advance, and pay attention to temperature control, and at the same time with some related fertilizers.

Then you should control the water, preferably not too much, and keep it dry.

The land where cotton is planted must be fertile, sandy land and alkaline land with good permeability, because when cotton bears peaches in the later stage, it is easy to rot peaches when it is humid and stuffy, and it is easy to rot peaches, so it is necessary to have good ventilation and higher plots, which are also conducive to drainage. To plant cotton, it is necessary to follow the principle of "light seedling fertilizer, stable bud fertilizer, and heavy flower boll fertilizer". The seedling stage is generally not watered, after topdressing bud fertilizer and flower boll fertilizer, if the weather is dry, it should be watered in time.

At the budding stage, if the plant is vigorous, it is necessary to spray dwarf quat to control the growth; If the plants and leaves lack nutrients in the middle and late stages and cannot meet the needs of cotton peach maturity, urea solution or potassium dihydrogen phosphate should be sprayed in time to supplement the nutrients of nitrogen or phosphorus and potassium.

If there is too much water, the planted seeds can easily drown in the soil and make it difficult for them to grow. When planting, what we can do is to irrigate the soil so that the water is fully integrated into the soil, which is good for the growth of cotton in the future. Plot Selection:

Cotton is a temperature-loving and light-loving crop. Cotton fields should choose flat land or sunny slopes with deep soil layer and medium fertility. The soil is heavy and clayy, back to the sun, and waterlogged cold pulp land is not suitable for planting cotton, and the agricultural proverb says:

Cotton seedlings are like fire, and the sand is the best. ”

Drying seeds: Cottonseed husk is thick, poor water permeability, and the seeds must be dried before sowing. Spread the cottonseeds, dry them on a sunny day for 2 or 3 days, turn them several times a day, and shake the cottonseeds in your hand to make a sound.

Be careful not to put the cottonseeds directly on the ground that is not easy to breathe, such as cement, to prevent dead seeds. Drying seeds can not only improve the germination rate of seeds, enhance germination potential, but also sterilize and prevent insects, which cannot be ignored.

Cotton varieties will affect the final mature yield and affect the income of cotton farmers. We must choose those varieties of high quality, to prevent pests and diseases, and to have strong resistance, so that in the process of planting cotton, we can invest less manpower and material resources in the prevention and control of pests and diseases, and the management becomes relatively easy. Autumn ridge is the best, spring ridge should also be completed before the end of March, no later than April 5 (before Qingming).

The land preparation is fine, the top is virtual and the bottom is solid, and the soil water content is not less than 18. Ridge fertilization should not be less than 3000 kg of agricultural fertilizer.

First, kill some borers in time to prevent them from biting off the peaches of cotton; Second, spraying protection, pay attention to the prevention and treatment of some diseases; Third, grab the rotten peaches to prevent the spread of the disease.

Clean the ditches. Before and after the rain, the drainage ditch of the cotton field should be cleaned in time, and the ditch should be unblocked, so as to ensure that the cotton field does not accumulate water and the ditch is not blocked when it rains; The clean water can be discharged quickly after rain, which can effectively reduce the groundwater level of cotton fields.

We must increase the intensity of management, and we should also spray pesticides in a timely manner, and we should also choose the right fertilizer and do a good job in the management of water and fertilizer.

If you want to prevent rotten cotton peaches, you must first pinch off the excess twigs when the peaches are just set. When there is a lot of rain in summer, you should pay attention to drainage, remember to do a good job in fertilization management, and use pesticides to prevent and control them.

Hello, the reasons for cotton falling peaches are moisture, fertilizer, density, temperature, etc. Cotton peach is a kind of cotton three falls, and the first variety is selected. Secondly, the density should not be too high, the light and ventilation, and the water and fertilizer management should also keep up.

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