What were the main features of rural agricultural change in the United States in the late 19th and e

In the late 19th and early 20th centuries, the main characteristics of rural agricultural transformation in the United States were increased agricultural mechanization and large-scale farm operations. During this period, the level of agricultural mechanization has been significantly improved, and modern agricultural machinery such as tractors have begun to be widely used in agricultural production, which has greatly improved the production efficiency and economic benefits of farms.

At the same time, large-scale farm operations also became an important feature of this period. With the spread of railways and roads, farmers can more easily transport their produce to market, and at the same time, they can more easily purchase agricultural machinery and agricultural products. This large-scale farm operation not only makes agricultural production more concentrated and efficient, but also promotes the development and prosperity of rural areas.

In addition, the period saw the emergence of new agricultural industries, such as canning of fruits and vegetables, dairy and meat processing, which further contributed to the development and diversification of the rural economy.

It should be said that the United States has agriculture but no traditional form of rural areas. After the Civil War, the Southern plantation economy declined as slave labor lost its legitimacy. At this time, factories in the north sprung up, especially during the First World War, and the need for military factories, a large number of labor outflows from the south, and the plantation economy further disintegrated.

The Great Depression from 1929 to 1933 caused a severe surplus of agricultural products, which caused a heavy blow to the economic production of the American South, which was dominated by an agricultural economy. Under the influence of this series of factors, the South of the United States used to rely on agriculture to become stronger than the North, but now it lags behind the North because of the decline of agriculture. One proof of this is that New Orleans, as a famous port city, has seen a significant slowdown in development due to the decline in agricultural products.

By the time of World War II, U.S. agriculture had changed from a plantation economy to a commercial, corporatized, and industrial chain-led farm economy.

Three characteristics: 1. Pay attention to resource-saving and environment-friendly construction. In the process of agricultural production, we should rationally use chemical substances, strive to achieve cleaner production, organically treat waste, and realize resource recycling, so as to improve rural production, life and ecological environment. 2. Advocate "people-oriented".

Green agriculture should produce green food that is nutritionally reasonable, hygienic and safe, and has sufficient quantity. In the production process, safety is the standard, and pesticides and fertilizers are used reasonably. 3. Advocate the integrated management of agriculture throughout the process.

Carry out green management and control of the whole process of agricultural products before, during and after production. Green agriculture helps to improve the ecological environment, can promote the coordination of agriculture and industry, the virtuous cycle of the environment, the harmony between man and nature, and maintain the sustainable survival of human beings.

Characteristics: Intensive selection methods have led to the development of high-yielding crops and livestock breeds. Breakthroughs have also been made in the development of agrochemicals such as pesticides and fertilizers.

In order to bring the fruits of this revolution directly to farmers' fields, countries** have adopted incentives to support producers in adopting these new farming techniques. Initially, such a revolution was seen as a great success. Due to population growth and increased demand for food, grain wild ants are also growing rapidly.

Grain ** remained stable.

At the end of the 20 th century, there were obvious changes in the development of agriculture and rural areas in China, and the most prominent of them should be regarded as the main agricultural products. This change is mainly embodied in the following aspects: First, agricultural production has increased.

At the end of the 20th century, China's total agricultural output grew rapidly, from 100 million catties in 1990 to 100 million catties in 2000, an increase, mainly due to the development of agricultural technology and the improvement of agricultural mechanization. Second, the quality of agricultural products has been improved. At the end of the 20 th century, the quality of China's agricultural products was significantly improved, from 1990 to 2000, an increase of 17 percentage points.

This is mainly due to the efforts of technological improvement, the construction of basic equipment and scientific management. The third is to enhance the capacity of agricultural products. At the end of the 20th century, China's agricultural product capacity has been significantly improved, from 100 million catties in 1990 to 100 million catties in 2000, an increase in which is mainly due to the implementation of the three rural policies and other support policies.

Fourth, the degree of marketization of agricultural products has been enhanced. At the end of the 20 th century, the proportion of marketization of agricultural products increased from 1990 to 2000, an increase of one percentage point, which was mainly due to the liberalization of the sale of agricultural products, the reform of agricultural products, and the development of agricultural information. Therefore, at the end of the 20 th century, there were obvious changes in the development of agriculture and rural areas in China, the most prominent of which should be regarded as the main agricultural products, which are mainly manifested in the increase in agricultural production, the improvement of the quality of agricultural products, the enhancement of the capacity of agricultural products, and the improvement of the degree of marketization of agricultural products.

Summary. Hello, the answer is as follows:

Changes in agricultural production tools: The power of agricultural machinery changed from steam engines to internal combustion engines.

New feature: Information technology is applied to agriculture.

Hello, the answer is as follows: Changes in agricultural production tools: the power of agricultural machinery is transformed from steam engines to internal combustion enginesNew features: information technology is applied to agriculture.