Crops Handout Pictures

Agriculture scattering area is very vast. In addition to the North and South Poles and the Gobi, the Earth's exterior is nearly all available for agricultural consumption. In nearly 131 million square kilometers of practical land area, about 11% is arable land and perennial crops, 24% is grassland and pasture, 31% is jungle and woodland. The land and local waters are used for water consumption. The distribution of natural capital for agriculture is very unequal. Arable land is mainly concentrated in Asia, Europe and North America. The economically prosperous countries in North America, Europe and Oceania have 0.56 hectares, while the developing countries in Asia, Africa and Latin America have only 0.22 hectares, including only 0.16 hectares in Asia (1984). Jungle area in Europe and Latin America is larger; grassland area in Africa is the first, followed by Asia; there are also great differences between different countries and regions. The fundamental tendency and characteristics of the development of agriculture in the world today is a high degree of trade, capitalization, scope, specialization, regionalization, industrialization, common sense, socialization, internationalization intertwined together, and greatly improved the output rate of the land, the rate of consumption of agricultural labor, the rate of agricultural products and the international market cooperation power.

Introduction

Agriculture is the process of cultivating animals and plants to consume food and industrial materials. Agriculture belongs to the first property, the science of agriculture is agronomy. Agricultural labor tools are living animals and animals, the products are animals and animals themselves. We manipulate the development of plants and animals and other biological discipline, through the process of wild culture to get the product of the various parts, collectively referred to as agriculture. Agriculture is to support the people's economic establishment and development of the basic products. Agriculture is the people manipulate the living performance of animal and plant body, the natural world of material and energy into human needs of the product of the consumer part. At this stage, agriculture is divided into two categories: animal cultivation and plant breeding. The land is irreplaceable in agriculture in the fundamental consumer materials, labor tools are mainly with the life of the animal, consumption and labor work is not the same, by the natural premise of the influence of the large, there is a distinctive regional and seasonal. Agriculture is the source of food and clothing for human beings, the basis of preservation, is the main prerequisite for all consumption. It supplies food, foodstuffs, industrial materials, capital and export materials for other parts of the people's economy. The countryside is also the largest market for industrial goods and the indiscriminate use of labor.