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54 Cards in this Set

  • Front
  • Back
Famine
a widespread food shortage, usually accompanied by malnutrition, starvation, epidemic, or mortality
Anemia
deficiency of red blood cells in an organism, usually leading to oxygen deficiency (hypoxia) in the organism
Rickets
a softening of bones in children that leads to deformities, often caused by malnutrition and lack of sufficient calcium and vitamin D in the diet
Pasture
Land plowed and planted to provide forage for domestic herbivorous animals.
Rangeland
Land used for grazing.
Cash crop
A crop which is grown to be traded in a market.
Desertification
Desertification is the process and/or result of poor farming practices. Too much tilling releases topsoil, greater evaporation speeds the soils waterloss and monoculture utilises valuable nutrients in the soil; all these factors render the soil useless, reduce biodiversity and increasing the chances of eventual famine in developing countries
Waterlogging
Waterlogging occurs when soil is oversoaked with water. The excess of water causes tiny air pockets around a plant's root system to be blocked. The plant is saturated with water, fungus will develop and eventually kill the plant. Waterlogging can also flush out essential minerals and dissolved salts from soil.
Overgrazing
Overgrazing causes grasses to be consumed and removed at a faster rate than they can be replaced. Because of overgrazing, topsoil is blown away and the rate of surface evaporation is accelerated.
aquaculture
the farming of food in aquatic habitats- both marine and freshwater. It is an important source of protein and is growing rapidly
crop rotation
different crops are planted in turn in the same field, with the field occasionally left fallow
pasture
land that is plowed, planted, and harvested to provide forage for animals.
Soil: O horizon
The O horizon is the top layer of soil in the zone of leaching. It is composed mostly of organic materials including decomposed leaves and twigs. Color: black/brown.
Soil: A horizon
The A horizon is the middle layer of soil in the zone of leaching. This horizon is composed mostly of mineral and organic materials. The process of leaching occurs in the A horizon and moves clay and other materials to the B horizon. Color: light black/brown.
Soil: E horizon
The E horizon is the bottom layer of soil in the zone of leaching. It is composed of light-colored materials such as clay, calcium, magnesium, and iron.
kwashiorkor
a disease due to undernourishment that usually affects young children
cause: protein deficiency
symptoms: swollen belly
marasmus
a disease due to undernourishment and malnourishment
cause: protein and energy deficiency
symptoms: emaciated body; lack of energy
chronic hunger
due to undernourishment; is when a person has enough calories to live, but not enough to be fully productive
Dirty Dozen
Apples, Cherries, Grapes, imported (Chili), Nectarines, Peaches, Pears,
Raspberries, Strawberries, Bell peppers, Celery, Potatoes, Spinish.

These all don't have a peel, so they have no protection from antibiotics and repellents sprayed...etc.
Pest
An organism that is unwanted by humans because it destroys plants and agriculture by feeding in them.
Ex: Bugs, Rodents, Birds.
These organisms are prevented by using pesticides.
Herbicides
Used to remove unwanted plants.
Insecticide
A form of pesticide to remove unwanted insects.
Fungicide
A form of pesticide to remove unwanted fungi.
Rodenticide
A form of pesticide to remove unwanted rodents.
Insecticide
Any material that kills insects. Includes numerous botanical products, both organic and synthetic
Herbicide
chemical substances or living organisms (called bioherbicides) used to kill or control vegetation such as brush, weeds, and competing or undesirable trees.
Fungicide
chemical compounds or biological organisms used to kill or inhibit fungi or fungal spores. Fungi are capable of causing serious damage in agriculture, resulting in critical losses of yield, quality and profit.
beriberi
A condition due to insufficient amount of thiamin in body. Side effects include: loss of appetite, constipation, and nausea, limb pain, muscle weakness, and low cardiac output, mental depression, peripheral neuropathy, irritability, and fatigue
Green revolution
Programs that have led to the development of new strains of crops with higher yields, better resistance to disease, or better ability to grow under poor conditions. These were initiated after WWII.
Terminator gene
A gene that makes seeds from a crop sterile. This is done for environmental and economic reasons. In theory, it prevents a genetically modified crop from spreading.
aquaculture
farming of plants and animals that live in water, such as fish, shellfish and algae
monoculture
The growth of only one species in a given area; such as a cornfield or other agricultural field.
Hydroponics
The growing of plants, especially vegetables, in water containing essential mineral nutrients rather than in soil.
Undernourishment
Reicieving below the 90% food intake amount over an extended period of time.
Malnourishment
Lack of intake of essential nutrients that the bodies needs.
Scurvy
Not getting the adequate amount of vitamin C in the diet. (having a viiamin C deficiency)
C Horizon
The third-deepest soil zone in ABC soil. It is unaltered by weathering and made up of the parent rock from which the two A and B layers are made from, as well as other
R Horizon
"R" stands for rock and it refers to the unconsolidated rock or solid bedrock of this layer. Found below C Horizon.
Anemia
a condition in which the number of red blood cells is below normal
rickets
A condition caused by a deficiency of vitamin D and associated with an interference of the normal ossification of bone.
subsistence agriculture
Small-scale agriculture designed to meet the consumption needs of individual households
B Horizon
The second or subsurface zone of soil, in ABC, made of clay and oxidized materials and organic matter obtained from the A horizon by leaching; subsoil. AKA zone of accumulation, zone of illuviation.
Pellagra
Pellagra is a vitamin deficiency disease caused by dietary lack of niacin (B3) and proteins containing the amino acid tryptophan. The main results of pellagra can easily be remembered as "the four D's": diarrhea, dermatitis, dementia, and death. This disease is mostly found in poorer regions of the world.
Fallow
Fallow is a process in which land is plowed and left unseeded for a season or more. This increases the soil's fertility.
Biological Control
A set of methods to control pests by using natural ecological interactions, including predation, parasitism, and competition. (part of integrated pest management)
Natural Pesticide
Pesticides that are found within nature, for example nicotine is a natural plant chemical.
Eutrophication
When chemical elements within an area increase, (ie phosphorus) lead to a boom in algae and bacteria growth, therefore oxygen levels decrease and therefore, resulting in fish kills.
undernutrition
Consuming less than 90% of the daily required amount of calories.
malnutrition
Consuming a diet that doesn't fulfill the nutritional requirements. For example, not eating enough iodine can result in goiter.
subsidizing
a grant paid by a government to an enterprise that benefits the public - in this case the government aids farmers financially sometimes to produce crops or not to produce crops at all (making higher demand)
Soil Salinization
The levels of salt within a given quantity of soil, thus affecting seed germination rates as demonstrated by the lab.
limiting factor
Hypothesized, it is the one factor of a crop or plant (sometimes a vitamin or mineral, or like phosphorus and nitrgoen) that is needed for a plant to increase in production and growth. It is affected one by one - however, in reality this is not the case. There are synergistic effects.
No-Till Agriculture
Agricultural practices that involve not ploughing the land in order to save topsoil, and using natural and artificial herbicides to kill off the weeds that would otherwize overrun the fields.
DDT
DDT is an organochlorine insecticide used to control mosquitoes and other insects. DDT is very toxic, very persistent in the environment, and bioaccumulates in many animals to a large degree. DDT commonly degrades to DDE in the environment.
Seen affecting many animals and organisms negatively in our parachuting cats exercise