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dry farming

(Encyclopedia) dry farming, farming system adopted in areas having an annual rainfall of approximately 15 to 20 in. (38.1–50.8 cm)—with much of the rainfall in the spring and early summer—where…

hotbed

(Encyclopedia) hotbed, low, glass-covered frame structure for starting tender plants. It differs from a cold frame only in that the soil is heated—either artificially as by underground electric…

compost

(Encyclopedia) compost, substance composed mainly of partly decayed organic material that is applied to fertilize the soil and to increase its humus content; it is often used in vegetable farming,…

Agricultural Adjustment Administration

(Encyclopedia) Agricultural Adjustment Administration (AAA), former U.S. government agency established (1933) in the Dept. of Agriculture under the Agricultural Adjustment Act of 1933 as part of…

plow

(Encyclopedia) plow or plough, agricultural implement used to cut furrows in and turn up the soil, preparing it for planting. The plow is generally considered the most important tillage tool. Its…

layering

(Encyclopedia) layering, horticultural practice of propagating a plant by rooting a branch before severing it from the mother plant. Typically the branch is bent and a section that has been slit or…

clubroot

(Encyclopedia) clubroot, disease of cabbages, turnips, radishes, and other plants belonging to the family Cruciferae (or Brassicaceae; mustard family). It is induced by a plasmodial slime mold that…

gumbo

(Encyclopedia) gumbo, another name for okra; also applied in the W United States to a rich, black, alkaline alluvial soil, which is soapy or sticky when wet.

Integrated Pest Management

(Encyclopedia) Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic…

hookworm

(Encyclopedia) hookworm, any of a number of bloodsucking nematodes in the phylum Nematoda, order Strongiloidae that live as parasites in humans and other mammals and attach themselves to the host's…