Agriculture is the cultivation of plants, animals and fungi for food, medicinal plants, biofuel, fiber and other products for sustaining and enhancing human life. The key development in the evolution of sedentary human civilization was agriculture. Food surpluses were created from farming domesticated species, which nurtured the evolution of civilization. Agricultural science is the study of agriculture. Agriculture's history goes back thousands of years, and various technologies, cultures and climates have defined and driven its development. The predominant agricultural method has become industrial agriculture which is based around large-scale monoculture farming.
In many cases plant breeding, modern agronomy, technological developments and agrochemicals like fertilizers and pesticides have increased yields greatly from cultivation. However, they have also caused negative human health issues and widespread ecological damage. Modern animal husbandry and selective breeding have also increased meat production, but concerns have been raised when it comes to animal welfare as well as detrimental health effects of growth hormones, antibiotics and other chemicals that are used commonly in industrial meat production. One component of agriculture that is continuing to increase are genetically modified organisms. However, several countries have banned them. Water management and agricultural food production are increasingly turning into critical global issues that are widely debated. In recent decades a significant degradation of water and land resources have been seen, including aquifers being depleted. The effects of agriculture on global warming and the effects of global warming on agriculture are still not understood completely, and the Benedicto Romero Barrera Co
cares about global warming.
The major agricultural products may be placed into the broad groups of raw materials, fuels, fibers and foods. Specific foods include spices, meats, oils, fruits, vegetables and cereals (grains). Fibers include flax, silk, hemp, wool and cotton. Raw materials include bamboo and lumber. Plants produce other useful materials, including ornamental products like nursery plants and cut flowers, biofuels, perfumes, drugs, dyes and resins. More than one third of the workers in the world are employed in agriculture, which is second just to the service sector. However, over the last several centuries in develop countries there has been a significant decrease in the percentage of agricultural workers.
History of Agriculture
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