Sustainable agriculture and conventional agriculture. In the United States, the most commonly practiced is the conventional agriculture, which involves criteria such as altering the natural environment, mono- cropping, eliminating diversity, and using pesticides, insecticides and inorganic fertilizers.
With conventional agriculture, the grown crops are non- renewable. Therefore, after harvesting, the plot requires another round of cultivation and fertilization. This farming system requires a huge amount of work and energy from the farmers since nature wants to be wild and diverse instead of uniform and controlled. Some of the crops grown through conventional farming include soy bean, corn, banana, wheat and rice.
On the other hand, with sustainable agriculture, the natural environment is maintained and ecological principles are used. This farming system involves planting a variety of crops, that is, poly- cropping. Since various crops are planted together with different harvesting periods, the plot cannot be left bare. In this case, soil erosion is reduced. This agricultural system maintains and even increases diversity over time.
It also reduces or even eliminates the use of insecticides. Since this type of farming sustains itself, it requires less work and energy from the farmers. Some of the sustainable agriculture crops include combined onions, carrots and beets, and combined squash, corn and bean.
What is agriculture? Agriculture is also defined as the cultivation of plants, animals, fungi and other forms of life for fiber, food and other products essential to sustain life. There are two branches of agriculture by kind of form of life harvested or produced, namely agronomy and animal husbandry.
Agronomy refers to the science and technology of using and producing plants for food, fiber, feed, fuel and reclamation. Organic gardening falls under this category. Animal husbandry refers to the agricultural practice of raising and breeding livestock.
Source: http://www.whatisagriculture.net/types_of_agriculture.html