Political action groups, including those interested in environmental issues and labor unions, also provide influence, as do lobbying organizations representing individual agricultural commodities. Since 1900 agriculture in developed nations, and to a lesser extent in the developing world, has seen large rises in productivity as mechanization replaces human labor, and assisted by synthetic fertilizers, pesticides, and selective breeding.  Specific crops are cultivated in distinct growing regions throughout the world. These seeds allow the farmer to grow a crop that can be sprayed with herbicides to control weeds without harming the resistant crop. , Crop alteration has been practiced by humankind for thousands of years, since the beginning of civilization. La technologie est l'étude des outils et des techniques.Le terme désigne les observations sur l'état de l'art aux diverses périodes historiques, en matière d'outils et de savoir-faire.Il comprend l'art, l'artisanat, les métiers, les sciences appliquées et éventuellement les connaissances. Cultural practices include crop rotation, culling, cover crops, intercropping, composting, avoidance, and resistance. That trend is expected to continue in 2016 because the demand for innovative farm technology is high, and when inventors show results, modern farmers have demonstrated a willingness to embrace those inventions and new techniques.  The service sector overtook the agricultural sector as the largest global employer in 2007. Intensive farming or intensive agriculture is a kind of agriculture where a lot of money and labour are used to increase the yield that can be obtained per area of land. In the European Union, the European Agency for Safety and Health at Work has issued guidelines on implementing health and safety directives in agriculture, livestock farming, horticulture, and forestry. On industrialized farms, injuries frequently involve the use of agricultural machinery, and a common cause of fatal agricultural injuries in developed countries is tractor rollovers. Commodities are generally reported by production quantities, such as volume, number or weight. Farmers grew wheat, barley, vegetables such as lentils and onions, and fruits including dates, grapes, and figs. Down suction causes the plow to penetrate to proper depth when pulled forward, while horizontal suction causes the plow to create the desired width of furrow. , Grassland based livestock production relies upon plant material such as shrubland, rangeland, and pastures for feeding ruminant animals.  Agriculture represents 70% of freshwater use worldwide. , Pest control includes the management of weeds, insects, mites, and diseases. , Agricultural policy is the set of government decisions and actions relating to domestic agriculture and imports of foreign agricultural products. Increased durability, nutritional content, insect and virus resistance and herbicide tolerance are a few of the attributes bred into crops through genetic engineering.  Wild foods including wild rice and maple sugar were harvested. Jomo Kenyatta University of Agriculture and Technology (JKUAT) ist eine Universität in Kenia.Sie befindet sich in Juja, 36 km nordöstlich der Hauptstadt Nairobi.. , Pesticide use has increased since 1950 to 2.5 million short tons annually worldwide, yet crop loss from pests has remained relatively constant. It is practiced mainly in developed countries. In recent years there has been a backlash against the environmental effects of conventional agriculture, resulting in the organic, regenerative, and sustainable agriculture movements. ", A senior UN official, Henning Steinfeld, said that "Livestock are one of the most significant contributors to today's most serious environmental problems". It is intensively practiced in Monsoon Asia and South-East Asia.  Multiple cropping, in which several crops are grown sequentially in one year, and intercropping, when several crops are grown at the same time, are other kinds of annual cropping systems known as polycultures. https://www.britannica.com/technology/agricultural-technology, USDA National Institute of Food and Agriculture - Agriculture Technology. Global cattle, sheep and goat populations are expected to continue to increase sharply through 2050. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture into the twenty-first. , The development of agriculture enabled the human population to grow many times larger than could be sustained by hunting and gathering. Many of the new innovations rely on the integration of on-board computers, data collection sensors, and GPS time and position reference systems. , Technological advancements help provide farmers with tools and resources to make farming more sustainable.  While agriculture usually refers to human activities, certain species of ant, termite and beetle have been cultivating crops for up to 60 million years. Selective breeding and modern practices in animal husbandry have similarly increased the output of meat, but have raised concerns about animal welfare and environmental damage. 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