Rice should be cautious in the use of medicine, which conditions of rice are harmed?

The leaves of the rice have wilted, and the leaves of the rice will have some spots, and the soil will be very dry, and the leaves will have some spots, and so on, and these situations mean that the rice has been damaged by pesticides, and this is fine.

The deformities of rice caused by pesticide damage mostly appear in the eye leaves and roots of rice, and the common deformities include leaf rolling, clumping, swollen roots, deformed ears, etc., such as when rice is damaged by -d pesticides, the heart leaves are stiff, and there are tubular leaves and deformed panicles.

Rice leaves are yellow, rice seedlings die, rice no longer grows, especially short, growth deformity indicates that rice is damaged by pesticides, may be a relatively large amount of medicine.

It is not necessary to use pesticides to grow rice, and it is okay not to use pesticides at all. But in real life, it is difficult to see rice without pesticides. Next, let's talk about the difference between using pesticides and not using pesticides when planting rice.

First of all, rice with pesticides that can control pests and diseases can avoid the loss of rice yield due to pests and diseases to a large extent, while rice without pesticides for pests and diseases is very likely to develop pests and diseases. In fact, no matter how the field management of rice is done, it is difficult to avoid the phenomenon of pests and diseases, and even in just a few days, the rice will be lost by the pests and diseases. Rice with pesticides for pests and diseases can inhibit the occurrence of rice pests and diseases to a large extent and ensure the yield of rice. Rice without pesticides for pests and diseases may be infested by pests and diseases, resulting in reduced rice yields or even no harvest.

Secondly, the rice that has been sprayed with weed control pesticides basically does not need to do special work to clean up weeds, while the rice that has not been treated with weed control pesticides needs to spend manpower to clean up weeds. In fact, whether it is the grass seeds in the original rice field or the grass seeds floating in the wind, in short, many weeds will grow with the growth of rice, and will also absorb a lot of nutrients that originally belong to rice, thus hindering the growth of rice. If we do weed-control agriculture, it will be easier to manage the field in the future.

If there is no agriculture to control weeds, there will definitely be a lot of weeds in the rice fields, and in order to produce rice, it is necessary to use manpower to pull weeds, which is relatively costly.

Finally, rice that has been used for agriculture may contain some toxins and carcinogens, while rice without pesticides is a green food and is basically harmless to the human body. In any case, pesticides can indeed improve the yield of rice, but the most important thing it brings is the excess of some trace elements, which directly or indirectly causes certain harm to the human body. Rice without pesticides will definitely be affected a lot in terms of yield, but it is still relatively safe to eat.

Therefore, when planting rice, using pesticides and not using pesticides have their own benefits.

Yes, pesticides must be used, pesticides do not affect crops, they can also ensure nutrient absorption, rice will not be subject to pests and diseases, and rice can be properly managed, and weeds can be removed.

It is also possible to use rice without pesticides, but it is labor-intensive and the yield is low. When planting rice, high-efficiency, low-toxicity and low-residue pesticides can be used, which can effectively reduce the occurrence of pests and diseases, and can also reduce the residue of pesticides on rice.

Yes, in this way, pests can effectively prevent pests, pesticides can control weeds, and at the same time, they can also prevent pests, and they can also ensure the growth of rice, which will not affect the yield of rice, but can ensure the nutrient absorption of rice.

Rice needs to be exposed to pesticides before planting. It is mainly to use fungicides to kill the pathogens carried on the surface of seeds and control the occurrence of rice seedling disease. Once the seeds are not sterilized with pesticides, seedling disease occurs after sowing.

Yes, and pesticides can be used to kill insects, and at the same time to remove weeds, which can also make rice yields higher, and then it can also ensure the fertility of the soil.

Rice is one of the most important food crops in Southeast Asia, and its strains can be divided into two categories: upland rice and rice, the former is mostly planted in mountainous or dry land, and the latter is widely planted in paddy fields. In the process of planting, ifWhat should I do if my rice is damaged by medicine?

1. What should I do if my rice is damaged by medicine?

If there are many spots after the rice is damaged, close to yellowing or the whole plant is close to wilting, all the water in the field should be released immediately, and a part of the new water should be added to the field, and fertilizer should be added to supplement the nutrients lost due to pesticides. If the herbicide is sprayed by mistake, a large amount of water should be sprayed in the field immediately to remove the herbicide on the rice, and the water should be changed repeatedly to reduce the pesticide concentration in the field.

Second, the reason for the late maturity of rice

1.Nitrogenous fertilizer. Excessive nitrogen fertilizer will affect the growth of rice, resulting in the inability of rice to absorb nutrients normally, resulting in nutrient imbalance in rice.

In the normal maturity period of rice in the later stage, it is still absorbing nutrients, and the phenomenon of greedy green and late maturity appears, which not only cannot increase the yield, but also decreases.

2.Illumination. If there is not enough light time in the rice side, it will cause the photosynthesis of the rice to decrease.

Rice retains too much nutrients, which will be absorbed and transformed all the time, resulting in late maturity. Moreover, the rice is planted too densely, and the rice leaves below are squeezed and blocked by each other, unable to receive light, and the light is insufficient, resulting in greedy green and late maturity.

3.Moisture content. After transplanting, it is necessary to ensure that the height of water in the rice field is at least to the ankle of the person, so as to ensure the normal growth of rice.

Lack of water will cause the seedlings to not be able to absorb nutrients properly. The rice matures late, and the leaves yellowing too late. Of course, there should not be too much water, otherwise it will be easy to cause rice rot.

In addition to the seeds for food, the stalks can be used as fuel, straw shoes, straw mats and raw materials for making paper, and can also be used as dry material for cattle and horses; Barley (i.e., chaff) can be recharged; Bran is good fodder for livestock.

What pests and diseases to control and what kind of medicine. For example, rice borer, rice borer, rice leaf borer, emamectin, chlorantraniliprole, indoxacarb, matrine, thuringiensis, cotton bollworm karyopolyhedrovirus, chlorfenuron, pyrethuron, etc. Rice planthoppers are treated with acetamiprid, imidacloprid, resveratrol, pymetrozine, dimethoxam, phenoxycarbofuran, thiamethoxam, thiazinone, bifenthrin, etc.

Rice blast. Tricyclazole, rice blast (Fuji No. 1), prochloraz, rice blastamide, thiophanate-methyl, azoxystrobin, chunleimycin, isorice blast, etc. Rice sheath blight, with difenoconazole.

Proconazole, or thiofuramide, or tebuconazole, or enazole, or jinggang. Wax Bacillus, or hexaconazole, or Jinggangmycin, etc.

The problem of seedling damage in rice seedbed is prominent year by year, the growth of light-induced seedlings is inhibited, and the seedlings are weak, which seriously leads to the death of seedlings and the failure of seedlings. Due to the many reasons for seedling pesticide damage, the situation is more complicated, which often confuses farmers, is at a loss, and does not know where the problem lies.

Rice seedbeds are prone to several drug hazards, how to prevent and remedy? First of all, there are many types and causes of rice seedbed toxicity, including pesticide residues, seedbed sealing herbicides, post-emergence herbicides, fungicides, growth regulators, seedling strengthening agents, acids, etc. Seedbed pesticide residues are harmedSome farmers build seedling sheds in soybean and corn fields, or take seedbed soil from these plots.

Due to the different pesticide residues in soybean and corn fields, the symptoms of field manifestations are also different. The light manifestation is that the growth of seedlings is inhibited, the seedlings are not strong, root rust and other symptoms, and the severe rice seedlings appear dry, yellow, shriveled, deformed, stiff, and even die.

Therefore, do not use long-term residual herbicides in corn and soybean fields to build nursery greenhouses or take seedbed soil. The most effective way to prevent the harm of pesticide residues in seedbed soil is not to breed corn, soybeans (mung beans, red beans, black beans), sorghum and other places where herbicides are likely to remain in the soil or take seedbed soil. The seedling greenhouse is best fixed all year round, and the soil of the seedling bed is best to be used for a year, and the seedling soil is used every year.

Many farmers are accustomed to using butylurethane mixture to close weeding in seedbed seedbed, butylurethane mixture cabutamine and polyurethane caonet mixture, which has the characteristics of powder, emulsified oil, low control cost, easy to use and good weeding effect. However, the application technology and environmental conditions of the agent are very high, and improper use can easily cause harm. For example, if the soil is too shallow, or if the soil is uneven, it will occur in low temperatures and humidity.

In particular, seedlings with weak growth or low-lying waterbeds are vulnerable to injury when dug up or undug seedlings. Due to the thin soil layer of the seedling tray, after spraying the weeding bed closed by Dingpu and watering, there is water on the surface of the soil agent, and the buds are not dug up, or the seedlings are weak, especially the low-lying water causes serious harm to the seedbed. If not watered, it is easy to cause lack of water in the seedbed, which affects the normal growth of seedlings.

Summary. There is a possibility that rice seedlings can recover after being damaged by pesticides, but it needs to be analyzed on a case-by-case basis. If the damage is not very severe and the growing point of the rice seedlings is not damaged, then the rice seedlings can usually gradually return to a healthy state through their own repair ability.

After the occurrence of pesticide damage, the following measures can be taken to help rice seedlings alleviate pesticide damage and speed up recovery: timely cleaning. After the occurrence of pesticide damage, rice seedlings can be rinsed with clean water to remove the residual pesticide.

Strengthen management. For rice seedlings damaged by pesticides, it is necessary to strengthen management to ensure that they obtain sufficient water and nutrients and improve their resistance to stress. Adjust fertilization.

Appropriately reduce or adjust the amount of fertilizer to avoid causing greater damage to rice seedlings. Use a restorative. Some phytoremediation agents can promote the growth of rice seedlings and speed up their recovery.

There is a possibility that rice seedlings can recover after being damaged by pesticides, but it needs to be analyzed on a case-by-case basis. If the damage is not very severe and the growing point of the rice seedlings is not damaged, then the rice seedlings can usually gradually return to a healthy state through their own repair ability. After the occurrence of pesticide damage, the following measures can be taken to help rice seedlings alleviate pesticide damage and speed up recovery:

Wash in a timely manner. After the occurrence of pesticide damage, rice seedlings can be rinsed with clean water to remove the residual pesticide. Strengthen management.

For rice seedlings damaged by pesticides, it is necessary to strengthen management to ensure that they obtain sufficient water and nutrients and improve their resistance to stress. Adjust fertilization. Appropriately reduce the amount of false cultivation or adjust the amount of fertilizer to avoid causing greater damage to rice seedlings.

Use a restorative. Some phytoremediation agents can promote the growth of rice seedlings and speed up the recovery of seedlings.

The slag collapse that should be noted is that if the pesticide damage is very serious, which has seriously affected the growth point and basic tissue structure of the rice seedlings, then the possibility of recovery is small, and it may need to be replanted.

Rice is the most important food crop in China, and it is also the crop that uses the most pesticides, and the current rice planting methods and the prevention and control of pests and diseases and pesticides are still not scientific, and the research and application of pesticide reduction technology are far from enough, so it brings many negative impacts. In the face of existing problems, only by proceeding from reality, reducing the amount of pesticides and protecting the ecological environment of farmland, can we achieve the prevention and control of pests and diseases, and then realize the increase of rice yield, quality improvement and farmers' income, and create better ecological and social benefits ......

Pesticides are an indispensable production factor in agriculture. For a long time, pesticides have played a vital role in controlling the harm caused by crop diseases, insects and weeds, protecting the safe growth of crops, improving crop yields, and promoting the stable growth of social economy. However, while pesticides are used a lot, they also lead to obvious air pollution, which has adverse effects on water, soil, and air.

In addition, the excessive and blind use of pesticides has also caused obvious food hygiene problems, which can already affect our health. Therefore, it is necessary to scientifically explore the problem of pesticide reduction, rational use of pesticides, control water pollution, and ensure food safety and ecological safety for the sustainable development of agriculture in the future.

Ecological and environmental protectionRequirements:

With the development of economy and society, the pollution problem of the ecological environment is becoming more and more serious, and the harmful substances in the air, water and soil are increasing day by day, among which pesticides are one of the main causes of such environmental pollution. Scientifically and explore the problem of reducing the use of pesticides, rationally using pesticides, and controlling water pollution can reduce air pollution, reasonably protect the ecological environment, and promote the sustainable development of conditions.

Requirements for pest control measures.

Too much pursuit and reliance on toxic pesticides can easily lead to the improvement of pesticide resistance and drug resistance, which not only leads to poor insect control effect, but also leads to an increase in the amount of pesticides and the cost of prevention and control. This requires operators to change their control measures for pests and diseases, and implement the strategic policy of "prevention before they occur, comprehensive control".

There is a lack of scientific drug use technology and unreasonable use of pesticides

Most of the rice growers have a slightly lower education level and extensive management, which leads to problems such as poor control effect, blind abuse and indiscriminate use of pesticides, and a significant increase in the cost of prevention and control. The type of pesticide is unreasonable, and the application method is wrong. Do not distinguish the type of pesticide use, no matter what disease to prevent, what kind of insect to treat, only according to their own habits, how convenient and how to use, the same way; The drug is not used according to the growth habit of pests and diseases, and the dosage of medicine is increased casually, and pesticide accidents continue to occur.

The selection of drugs is not scientific, and the dosage of drugs is not standardized. The prevention and control of the same pest and disease, a variety of effects of pesticides are used together, not according to the control objectives, crops and pesticide application time for the symptomatic use, often continue to use drugs for many times, the amount of pesticides has soared, and the use rate is not high.