Feeding the World - Chapter 11 Flashcards
Undernutrition
The condition in which not enough calories are ingested to maintain health.
Malnutrition
Having a diet that lacks the correct balance of proteins, carbohydrates, vitamins, and minerals.
Food Security
A condition in which people have access to sufficient, safe, and nutritious food that meets their dietary needs for an active and healthy life.
Famine
The condition in which food insecurity is so extreme that large numbers of deaths occur in a given area over a relatively short period.
Anemia
A deficiency of iron.
Overnutrition
Ingestion of too many calories and a lack of balance of foods and nutrients.
Industrial Agriculture
Agriculture that applies the techniques of mechanization and standardization.
Energy Subsidy
The fossil fuel energy and human energy input per calorie of food produced.
Green Revolution
A shift in agricultural practices in the twentieth century that included new management techniques, mechanization, fertilization, irrigation, and improved crop varieties, and that resulted in increased food output.
Mechanization
work done by machines, such as plowing, planting, irrigating, weeding, protecting from pests, harvesting, preparing for next season.
Economic of Scale
The observation that average costs of production fall as output increases.
Compaction
reduces the permeability of soil to water and air, if the soil is subjected to pressure, pore spaces can collapse, decreasing pore space
Waterlogging
A form of soil degradation that occurs when soil remains under water for prolonged periods.
Soil Salinization
Soil salinization is the buildup of salt in surface soil layers
Commercial Inorganic Fertilizer
Commercially prepared mixture of plant nutrients such as nitrates, phosphates, and potassium applied to the soil to restore fertility and increase crop yields.
Animal Manure
Poop and urine of animals used as a form of organic fertilizer.
Green Manure
Freshly cut or still-growing green vegetation that is plowed into the soil to increase the organic matter and humus available to support crop growth.
Compost
Partially decomposed organic plant and animal matter used as a soil conditioner or fertilizer.
Monocropping (monoculture)
An agricultural method that utilizes large plantings of a single species or variety.
Pesticides
A substance, either natural or synthetic, that kills or controls organisms that people consider pests.