Agriculture | The Canadian Encyclopedia

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  • Article

    Pesticide

    Substances used to control pests include insecticides (for control of insects), fungicides (for disease-causing fungi), herbicides (for weeds), rodenticides (for rodents), avicides (for birds), piscicides (for fish) and nematicides (for nematodes).

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  • Article

    Plant Breeding

    Plant breeding is an applied science, in which knowledge of genetics, pathology, plant physiology, statistics, and molecular biology are used to modify plant species for human needs or preferences.

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    Plant Disease

    Plant disease can decrease the economic, aesthetic and biological value of all kinds of plants. Plant pathology (phytopathology) is the study of the nature, causes, prevention and socioeconomic aspects of plant diseases.

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    Plum

    Plum is a common name for certain members of genus Prunus of the rose family, which produce a smooth-skinned, elliptical, heart-shaped, oblong, ovate or round fruit with a flat seed.

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    Potash

    Potash is an alkaline potassium compound most commonly used in fertilizers. It refers to a variety of salts produced through mining of minerals and chemical manufacturing. Canada is the world's largest potash producer and exporter.

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  • Article

    Potato

    The potato (Solanum tuberosum) is a herbaceous annual of the nightshade family, which produces tubers at the end of underground branches called stolons.

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    Potato Wart Disease

    Potato wart disease, also called potato canker, is a fungal disease of potato sprouts, eyes and stolons. The disease is caused by the soil-borne fungus, Synchytrium endobioticum. Potato wart disease poses no danger to human health or food safety, but it can impact local economies as the disease can reduce yield and effect economic regulations, such as potato exports. (See also Agricultural Economics.)

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  • Article

    Prairie Farm Rehabilitation Administration (PFRA)

    The Prairie Farm Rehabilitation Administration (PFRA) was a branch of Agriculture and Agri-Food Canada with a focus on Western Canada. It was headquartered in Regina, Saskatchewan. The PFRA also had 22 district offices throughout the Prairie provinces. The agency began in response to the drought crisis of the 1930s in the Prairies. However, for nearly eight decades, it continued to help farmers conserve soil, prevent erosion, develop water resources and manage pasture land.

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  • Article

    Pulse Crops

    Pulse crops are members of the family Leguminosae or Fabaceae (see LEGUME). The term "pulse crops" generally refers to those plant species harvested primarily for dry seed that is used as both human food and animal feed.

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  • Article

    Pumpkin

    Pumpkin is a common name for squash with large, orange fruits.

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  • Article

    Rabbit Farming

    Rabbit farming, officially called cuniculture (from the species name for wild rabbits, Oryctolagus cuniculus), is a small part of Canadian agriculture, with most production in Ontario and Québec.

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    Radish

    Radish (Raphanus sativus) is a hardy annual or biennial vegetable belonging to the Cruciferae family. Roots are mostly rounded with a red exterior and white, acrid flesh.

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    Rat Control in Alberta

    Rat control in Alberta is administered and co-ordinated by Alberta Agriculture and Food. It was established in 1950 to keep Alberta free of Norway rats (seeRAT), which were introduced to the east coast of North America in 1775

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  • Article

    Red Fife Wheat

    Red Fife is a bread wheat (Triticum aestivum) variety that Dave Fife and family began to grow in 1842 at their farm in Peterborough, Ont.

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    Rhubarb

    Rhubarb (genus Rheum) is a common name for about 50 species of cool-season herbaceous perennial plants belonging to the buckwheat family and originating in central Asia.

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