review agriculture topics
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| show | Planting trees and crops together.
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| show | Planting of crops in strips with rows of trees or shrubs on each side.
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| show | Dung and urine of animals used as a form of organic fertilizer.
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| aquaculture | show 🗑
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| chronic undernutrition | show 🗑
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| show | Commercially prepared mixture of plant nutrients such as nitrates, phosphates, and potassium applied to the soil to restore fertility and increase crop yields.
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| show | Partially decomposed organic plant and animal matter used as a soil conditioner or fertilizer.
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| conservation-tillage farming | show 🗑
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| contour farming | show 🗑
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| show | Crop cultivation method in which a planting surface is made by plowing land, breaking up the exposed soil, and then smoothing the surface.
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| show | Planting a field, or an area of a field, with different crops from year to year to reduce soil nutrient depletion. A plant such as corn, tobacco, or cotton, which removes large amounts of nitrogen from the soil, is planted one year. The next year a legume
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| show | Conversion of rangeland, rain-fed cropland, or irrigated cropland to desertlike land, with a drop in agricultural productivity of 10% or more. It usually is caused by a combination of overgrazing, soil erosion, prolonged drought, and climate change.
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| show | Widespread malnutrition and starvation in a particular area because of a shortage of food, usually caused by drought, war, flood, earthquake, or other catastrophic events that disrupt food production and distribution.
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| feedlot | show 🗑
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| show | Substance that adds inorganic or organic plant nutrients to soil and improves its ability to grow crops, trees, or other vegetation.
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| fish farming | show 🗑
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| show | Form of aquaculture in which members of a fish species such as salmon are held in captivity for the first few years of their lives, released, and then harvested as adults when they return from the ocean to their freshwater birthplace to spawn.
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| show | Concentrations of particular aquatic species suitable for commercial harvesting in a given ocean area or inland body of water.
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| food security | show 🗑
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| fungicide | show 🗑
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| green manure | show 🗑
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| green revolution | show 🗑
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| gully erosion | show 🗑
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| herbicide | show 🗑
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| high-input agriculture | show 🗑
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| show | Suffered when people cannot grow or buy enough food to meet their basic energy needs.
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| industrialized agriculture | show 🗑
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| inorganic fertilizer | show 🗑
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| insecticide | show 🗑
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| show | Combined use of biological, chemical, and cultivation methods in proper sequence and timing to keep the size of a pest population below the size that causes economically unacceptable loss of a crop or livestock animal.
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| intercropping | show 🗑
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| show | Simultaneously growing a variety of crops on the same plot.
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| land degradation | show 🗑
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| show | Same as sustainable agriculture.
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| show | Faulty nutrition, caused by a diet that does not supply an individual with enough protein, essential fats, vitamins, minerals, and other nutrients needed for good health.
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| show | Same as animal manure, green manure.
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| show | Ability of a living cell or organism to capture and transform matter and energy from its environment to supply its needs for survival, growth, and reproduction.
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| show | Chemical elements that organisms need in small or even trace amounts to live, grow, or reproduce. Examples are sodium, zinc, copper, chlorine, and iodine.
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| show | Same as conservation-tillage farming.
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| show | Cultivation of a single crop, usually on a large area of land.
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| no-till farming | show 🗑
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| organic farming | show 🗑
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| show | Organic material such as animal manure, green manure, and compost, applied to cropland as a source of plant nutrients.
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| show | Diet so high in calories, saturated (animal) fats, salt, sugar, and processed foods and so low in vegetables and fruits that the consumer runs high risks of diabetes, hypertension, heart disease, and other health hazards.
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| show | Unwanted organism that directly or indirectly interferes with human activities.
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| show | Any chemical designed to kill or inhibit the growth of an organism that people consider undesirable.
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| plantation agriculture | show 🗑
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| show | Complex form of intercropping in which a large number of different plants maturing at different times are planted together.
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| polyvarietal cultivation | show 🗑
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| show | Accumulation of salts in soil that can eventually make the soil unable to support plant growth.
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| sheet erosion | show 🗑
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| show | Same as windbreak.
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| show | Clearing a plot of ground in a forest, especially in tropical areas, and planting crops on it for a few years (typically 2-5 years) until the soil is depleted of nutrients or the plot has been invaded by a dense growth of vegetation from the surrounding f
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| show | Cutting down trees and other vegetation in a patch of forest, leaving the cut vegetation on the ground to dry, and then burning it. The ashes that are left add nutrients to the nutrient-poor soils found in most tropical forest areas. Crops are planted bet
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| soil conservation | show 🗑
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| show | Movement of soil components, especially topsoil, from one place to another, usually by wind, flowing water, or both. This natural process can be greatly accelerated by human activities that remove vegetation from soil.
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| show | Planting regular crops and close-growing plants, such as hay or nitrogen-fixing legumes, in alternating rows or bands to help reduce depletion of soil nutrients.
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| subsistence farming | show 🗑
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| sustainable agriculture | show 🗑
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| terracing | show 🗑
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| show | Producing enough food for a farm family's survival and perhaps a surplus that can be sold. This type of agriculture uses higher inputs of labor, fertilizer, and water than traditional subsistence agriculture.
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| traditional subsistence agriculture | show 🗑
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| show | Consuming insufficient food to meet one's minimum daily energy needs for a long enough time to cause harmful effects.
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| show | Saturation of soil with irrigation water or excessive precipitation so that the water table rises close to the surface.
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| windbreak | show 🗑
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