Abstract: In the process of building an ecological society, plant protection is the basic work. The complex ecological environment and various landforms in China determine the diversity of plant species in China, which brings more complicated work forms and contents to plant protection. With the continuous development of agricultural science and technology, plant protection in China is facing new problems on the basis of complexity. Based on this, these problems are studied in order to find corresponding solutions.
Key words:
Key words: plant protection; Ecological environment; Species category
With the rapid development of social economy, people's living standards have been continuously improved, but the living environment has been seriously damaged. In China's diverse ecological environment, plant protection is more complicated. This paper analyzes the present situation of plant protection in China, finds out the countermeasures to solve the problems, and then achieves the purpose of protecting China's ecological environment.
1 the importance of plant protection
Vegetation plants can reduce surface water flow, slow down water flow speed, prevent wind and fix sand. With the continuous development of social economy, people have higher and higher requirements for the quality of living environment. On the basis of the original windbreak and sand fixation, plants began to have the functions of beautifying the green environment, shading, heatstroke prevention, dust prevention and air purification. However, plants themselves will suffer from pests and diseases, natural disasters and so on. If these problems are not protected in time, they will lose their functions and have a certain impact on people's living environment.
2' Problems encountered in plant protection
2. 1 Insufficient attention of relevant departments is the key reason for the problems in plant protection projects. Due to insufficient attention, it will directly lead to insufficient investment in plant protection funds and personnel, and plant protection work will naturally not be done. In addition, the publicity of plant protection knowledge is not enough, and the general public does not realize the importance of plant protection. At present, the plant greening work in China mostly adopts the form of contract management, and each contractor independently maintains and preserves the green space. When pests and diseases occur, it is impossible to achieve unified control, and the control effect is not ideal because of the lack of technical guidance.
2.2 On the premise of less arable land per capita, in order to increase grain yield and prevent the occurrence of diseases and pests, fine varieties and advanced planting techniques are selected. In order to increase grain yield, a large number of closed pesticides and herbicides are used, and sometimes these products have not been monitored by relevant state departments, resulting in drug residues. In addition, land reclamation is the development trend in rural areas in recent years, which increases the occurrence of pests and diseases to a certain extent, making plant protection more and more difficult.
2.3 climate anomalies lead to more complicated pests and diseases. In recent years, the global economy has been warming, and some extreme weather conditions have appeared in many places. The pests and diseases in these areas are more serious, and the pests and diseases have also changed correspondingly due to climate change. For example, wheat scab and rice blast occur frequently and become more and more serious. Wheat in some plateau areas also suffers from stripe rust and other hazards. The emergence of these problems has increased the difficulty of crop protection in China to some extent. In addition, with the continuous development of science and technology, the cultivation techniques of crops have also changed greatly. This cultivation method has changed the occurrence law of pests and diseases, which may aggravate the previously less harmful pests and diseases, greatly increasing the difficulty of monitoring and controlling pests and diseases.
2.4 Hidden dangers of agricultural products quality Nowadays, food safety issues emerge one after another, and more and more people are beginning to pay attention to food safety. Moreover, due to the competition of agricultural products, many countries have raised the import threshold of agricultural products and set new standards for pesticide residues, which has brought great resistance to the export of agricultural products in China. In the future, it is necessary to protect crops more scientifically and strengthen supervision over the quality and safety of agricultural products. At the same time, in order to ensure the quality and safety of agricultural products, higher requirements are put forward for plant protection.
3 Plant protection countermeasures
3. 1 Pay more attention and strengthen publicity. First of all, relevant departments should pay enough attention to plant protection, clarify the functional attribution of each department, and strengthen unified management. Strengthen cooperation among various departments, and establish and improve the pest control mechanism by formulating corresponding laws and regulations. In addition, strengthen publicity and organize regular publicity lectures on plant protection to make more people realize the importance of plant protection.
3.2 Strengthening Plant Protection Scientific Research In the process of plant protection, it is necessary to analyze the occurrence law of pests and diseases, and also predict the occurrence of pests and diseases in combination with the growth of weather, soil and plants. In addition, strengthen the construction of plant protection research laboratories, carry out experimental research on common pests and diseases, and improve control technologies and strategies.
3.3 Ecological control of pests In China, chemical pesticide control is the main method to control pests, but this traditional control method will poison natural enemies of pests and easily pollute the environment. In addition, chemical drug control will make pests and diseases resistant, which will not only affect the control effect, but also affect a series of problems such as the quality and safety of agricultural products and environmental safety.
3.4 Advocating Green Plant Protection and Disease Prevention Technology In order to ensure food safety, in the process of agricultural production, we should earnestly promote the in-depth reform of plant protection and take the production of green and healthy food as an important purpose of agricultural production. Carry out various agricultural production activities around the production of green and healthy food to ensure the extensive development of plant green protection technology. This not only fundamentally ensures food safety, but also effectively controls the unfavorable factors to the environment in the process of plant production.
refer to
[1] Nanzhong No.1 Middle School. Problems and countermeasures of plant protection. Friends of Science, 20 12(4).
Junfeng Gao. Problems and prospects of plant protection in China. Biotechnology World, 2012,5 (11).
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