The formula has been proved by many experiments, and the figure is the experimental result of the monomer. The amount of vegetable consumption accounts for a certain proportion in residents' lives. According to a survey in Beijing in 1980, the monthly per capita expenditure on non-staple food was 8.54 yuan, of which 2.25 yuan was for fresh vegetables, accounting for 26.3% of the total expenditure on non-staple food. Therefore, vegetable production and supply are not only connected with the lives of thousands of households, but also a major event that directly affects the national economy.

Vegetable production is an integral part of agricultural production. According to statistics in 1980, the vegetable consumption of nearly 50 million residents in 35 large and medium-sized cities, industrial and mining areas, including Beijing, Tianjin and Shanghai, was 8 billion kg. The average annual consumption of Tibetan vegetables per person is 180kg. In addition, it has also set up relevant professional vegetable machines such as production, commerce, education, scientific research and promotion of science and technology, which has made great development and achievements in the production of vegetable tables.

In 1982, among 29 provinces, cities and autonomous regions, the population living in cities and towns was about 200 million, and the total consumption of commercial vegetables was about 32 billion kg. For example, the consumption of vegetables in the country is about 75 billion kg, including the vegetables for self consumption in rural areas. The area of vegetable land occupies a certain proportion in China's cultivated land. According to the statistics of the Ministry of agriculture, animal husbandry and fishery, the sown area of Tibetan vegetables in 1980 was 47.427 million mu, accounting for 2.4% of the total sown area of crops in the country.

Due to the needs of urban construction, the vegetable production in the suburbs can not meet the needs of consumers, and began to develop in the outer suburbs. Vegetable production has become one of the important economic sources in these areas. Our country has a wide range of cities, different climates and excellent production technology. Many famous vegetable specialty areas and processing raw material areas have been produced. Vegetable production has gradually become the main economic pillar of these areas. Many famous specialty rattan vegetables in China are famous in the international market.

For example, the big pepper in winter and spring in Guangdong, the cauliflower in Fujian, the tomato in Yuanjiang, Yunnan, the garlic tomb in Anhui and Hubei, and the potato in Heilongjiang and Inner Mongolia. Vegetables also contain abundant nutrients such as androgen e (fertility acid), K (coagulation circle), folic acid and so on, which are required by human physiological activities. Lack of it will also affect the normal physiological activities of human body. Trimming: during the management process, attention shall be paid to shaping and preventing the debris from moldy.

In terms of fresh vegetables, there are cabbage, gansheng, green onions, garlic, lily, yam, tomato, Hami melon, etc; In the processing of canned, pickled and dried vegetables, there are asparagus, edible fungi, pickled mustard, pickled vegetables, honeysuckle, lotus seeds, lotus root powder, dry hot ruts, dried ginger, bamboo shoots, beans, etc. The degree of influence on the polymerization rate depends on the comparison of the activity of the new radical and the original radical. When the s activity is greater than the - M activity, the polymerization rate is accelerated.

In 1980, the vegetables sold to Xiangchi, Macao, Japan, Malaysia, Singapore and more than 10 countries reached 350 million kg, and the foreign exchange was 120 million US dollars (excluding Taiwan Province). China has a vast land and a myriad of climate changes. Under the current production level, there will still be various natural disasters, which will bring difficulties to the people's lives. Because of the short growth period and strong adaptability, vegetables have become supplementary food and can resist disasters and drought.

Vegetable planting has a long history and accumulated rich experience. However, due to the restrictions of small farmers in feudal society for more than 2000 years, the development of vegetable rack production has been slow, and the technology of sugarcane case loading has also been slow to reach its due level. Over the past few decades, the vegetable market has been relatively stable and the people's livelihood has been guaranteed. Yizhang is one of the important mushroom foods in people's life, and vegetable production is also an indispensable part of agricultural production.

In addition, after the liberation, the production relations have changed at the bottom of the country. Yuncai wall has gradually moved from the self-sufficient individual clothing economy to the collective ownership. The genuine products below have helped greatly develop the vegetable production, and the basic rate has met the needs of the development of the city, industry, mining and forest areas. Moreover, the governments at all levels have implemented and implemented the policies of the central government and the State Council on vegetable production, and have given strong support and help to the farmers.

Due to the continuous improvement of the living standards of our people and the continuous growth of the population in the industrial and mining areas at the battle points, the vegetable planting area has also been correspondingly expanded, and the supply has increased significantly. According to the statistics of the commercial department, in 1865, the annual vegetable country bacteria accumulation was 1.821 million mu in 35 large and medium-sized cities and industrial and mining forests in the country. By 1980, the party and the government increased to 2.613 million merchants. The average vegetable sales area per capita was 4.2 stars in 1965 and 5.2 stars in 1980.

The main bulb is carved by the method of crab claw Narcissus, and the blade is carved by rolling and bending. The lateral bud is not carved, and it is allowed to grow naturally. In 1965, the total output of vegetables in China was 54. KB, but in 1930, it increased to 8.115 billion kg, with 35.4% of cans, and the average daily per capita of my family increased from 325g to 440G, with 36. Day% of grains. This development trend can also be seen from the national product and output of Beijing vegetable cases over the years.