What measures can be taken to solve the problems of farmland environmental pollution caused by the u

1. Actively develop ecological agriculture and organic agriculture. Rational layout of livestock and poultry farms, control of fecal pollution in the aquaculture industry.

2. Strengthen the regulation of rural plastics and medical waste.

of ** work. Strengthen the comprehensive utilization of straw and make full use of biotechnology to carry out comprehensive treatment of straw.

3. Speed up the use of dry toilets in rural areas.

The pace of renovation is to cover the rural drainage canals as soon as possible.

4. Carry out targeted soil pollution prevention and control. Effective measures for the prevention and control of soil pollution should be based on the causes of soil pollution. For example, in the case of land pollution caused by agricultural development, it is necessary to target the main chemical elements of chemical pollution.

Analysis, make full use of the principle of chemical neutralization reaction to neutralize and absorb harmful elements or excess elements in the soil, and achieve the effect of chemical decontamination.

5. Pay attention to the improvement of the quality of farmers, farmers themselves have their own unique experience and understanding of agriculture, and the guidance of pollution awareness and scientific and effective pollution removal methods can more effectively prevent and control soil pollution and carry out agricultural environmental protection. Therefore, strengthening the improvement of farmers' awareness of agricultural environmental protection will achieve twice the result with half the effort for the prevention and control of agricultural land pollution and agricultural environmental protection.

Promote the expansion of green prevention and control, promote the development and upgrading of unified prevention and control, and strengthen the publicity and training of scientific drug use.

With the construction of green prevention and control demonstration zones as the starting point, we will continue to promote the deep integration of green prevention and control of crop diseases and insect pests and professional unified prevention and control, actively promote the green prevention and control of fruits, vegetables and tea pests and diseases, integrate and optimize the promotion of ecological regulation and control, physical and chemical inducement and control, biological control, scientific medicine and other technologies, further expand the area and coverage of green prevention and control demonstration applications, and promote large-scale promotion and application by radiation.

With the focus on "equipment modernization, personnel specialization, and whole-process service", we will guide professional prevention and control organizations to become bigger, better and stronger, increase the support for professional prevention and control organizations that apply high-efficiency plant protection machinery to carry out full-process contracting and cross-regional operation services, and improve the degree of large-scale organization of unified prevention and control. At the same time, we should encourage and help farmers to organize themselves to carry out unified control and control of pests and diseases, mass prevention and treatment, and improve the effectiveness of prevention and control.

Timely issue the scientific and safe drug use guide, pest and disease information and major pest prevention and control technical plans for crop disease and pest control, actively carry out scientific and safe drug use technology publicity and training, strengthen scientific and safe drug use guidance, guide agricultural producers to use pesticides safely and scientifically, and further reduce the use of chemical pesticides.

Measures that can be taken to solve the problems of farmland environmental pollution caused by the use of a large number of chemical fertilizers and pesticides: the development of ecological agriculture, the development of prescription agriculture, the development of organic agriculture, etc.; Develop high-efficiency and low-toxicity pesticides, and use ecological methods to kill agricultural pests.

If you want to use less chemical fertilizers and pesticides or crops to be less sick, less diseases can be used to use less drugs, you can use some organic fertilizers to improve crop disease resistance, so as to reduce the amount of chemical fertilizers and pesticides, the awakening power of Luopu agriculture can improve the ability to induce disease resistance in crops, induce crops to produce disease resistance, and can also solve pesticide damage, which can reduce the use and residue of chemical fertilizers and pesticides.

In the countryside, there are some old people who farm land, young people have little time in the countryside, and there are very few people who farm the land, and in the process of applying chemical fertilizers, sometimes the old people do not understand, and sometimes some of the handwriting on it may not be understood.

First, the appropriate amount of pesticides and fertilizers. Pesticides are not the more the better, which will not only promote the insects to have self-protection, but also increase the harm to plants, so in the application of chemical fertilizers and the use of pesticides must pay attention to the amount, each time the amount is not too much, not too little, pesticides and fertilizers are too little, some insects are not used at all, so, the degree of use, must be grasped. Sometimes when applying chemical fertilizers and pesticides, the number of days between them is also particular, not too long, and not very close, so as to eliminate all pests and diseases.

Second, the time of spraying. In the past, when we were fertilizing, we were at home, and my parents were always on rainy days.

When I go to the field to sprinkle some fertilizer, in fact, this fertilizer is sprinkled out of trouble, but when the sun shines, in fact, the ingredients are not absorbed by the crops in the field, but absorbed by the sun, so when applying fertilizer, we must pay attention to it, try not to sprinkle it directly in the ground, so that it is easy to save trouble, but many times the crops are not absorbed.

Third, the method of fertilization. , the old man likes to hold a hoe.

Fertilize a seedling pit in the crop field, such a crop field will be well absorbed, but when digging the pit, you must pay attention, do not be too close to the seedlings, if it is too close, it is easy to burn the seedlings.

In fact, when we apply fertilizer, we dig pits and bury fertilizer, and then after all the fertilizer is applied, we are watering the ground, which is very good for the crops, and the absorption is also very good, so the crops have a good harvest.

Fourth, precautions for spraying. When playing pesticides, don't spray pesticides at noon, we know that the sun at that time is very big, and pesticides are absorbed by the sun, which is also versatile.

Whether it is fertilization or pesticide application, there are many important points that need to be learned in practice.

The problem that needs to be paid attention to is the abundance of these drugs, and it is necessary to strictly follow the instructions of the drugs. When spraying pesticides, be sure to pay attention to personal protection. Do not spray pesticides in the scorching sun or on rainy days.

Pay attention to personal cleanliness and hygiene. Pay attention to the interval between medications.

It is necessary to pay attention to the selection of pesticides, do not choose more toxic ones, must be targeted, understand the state of plants, do not use pesticides indiscriminately, and pesticides must be targeted.

The first thing is to choose the right product, to ensure the composition of fertilizers and pesticides, and then it is also necessary to choose the right dosage and the right spraying method according to different crops, and do not mix them.

<> the use of a large number of chemical fertilizers and pesticides will lead to eutrophication of rivers and lakes, increase the amount of nitrogen oxides in the atmosphere, accelerate the deterioration of soil physical properties, pollute the soil, destroy the soil structure, and land compaction will directly affect the cost of agricultural production and the yield and quality of crops.

Test answer: The nutrients needed by crops are limited, and the application of more chemical fertilizers will not only cause crops to be completely absorbed, resulting in economic waste, but also causing environmental pollution; Chemical pesticides seriously pollute water, atmosphere and soil, therefore, a large number of chemical fertilizers and pesticides are used in agricultural production, especially the use of phosphorus-containing laundry detergent to cause eutrophication of water bodies is an important cause of environmental pollution

So the answer is

The technical and old fiber improvement measures for the excessive use of pesticides and fertilizers are:

Breeding new varieties of disease resistance and insect resistance.

Use biological control or auspicious methods.

Crop rotation. Water, early crop rotation.

Development of slow-release fertilizers.

Formula fertilization. Improve fertilizer efficiency.

Development and utilization of organic fertilizer.

Development of biopesticides.

Improve the level of agricultural technology .........