Three-field crop rotation — From the end of the Middle Ages until the 20th century, the three year rotation or three field rotation was practiced by farmers in Europe with a rotation of rye or winter wheat, followed by spring oats or barley, then letting the soil rest… … Wikipedia
Crop rotation — Fallow redirects here. For other uses, see Fallow (disambiguation). Satellite image of circular crop fields in late June 2001. Healthy, growing crops are green. Corn would be growing into leafy stalks by then. Sorghum, which resembles corn, grows … Wikipedia
crop rotation — crop ro.tation n [U] the practice of changing the crops that you grow in a field each year to preserve the good qualities in the soil … Dictionary of contemporary English
crop rotation — the system of varying successive crops in a definite order on the same ground, esp. to avoid depleting the soil and to control weeds, diseases, and pests. [1905 10] * * * Successive cultivation of different crops in a specified order on the same… … Universalium
crop rotation — noun (U) the practice of changing the crops that you grow in a field each year to preserve the good qualities in the soil … Longman dictionary of contemporary English
Crop diversity — is the variance in genetic and phenotypic characteristics of plants used in agriculture. Crops may vary in seed size, branching pattern, in height, flower color, fruiting time, or flavor. They may also vary in less obvious characteristics such as … Wikipedia
rotation of crops — rotation of crops, the varying from year to year of the crops grown in the same field to keep the soil from losing its fertility; crop rotation … Useful english dictionary
rotation — [[t]roʊte͟ɪʃ(ə)n[/t]] rotations 1) N VAR Rotation is circular movement. A rotation is the movement of something through one complete circle. ...the daily rotation of the earth upon its axis. 2) N UNCOUNT: oft in N The rotation of a group of… … English dictionary
Rotation (disambiguation) — The term rotation can be used in several ways and includes various topics. Generally, it is used to denote (in 3D) the rotation of movement of a rigid body in such a way that any given point of that body remains at a constant distance from some… … Wikipedia
Open field system — Generic map of a medieval manor, showing strip farming, from William R. Shepherd, Historical Atlas, 1923 The open field system was the prevalent agricultural system in much of Europe from the Middle Ages to as recently as the 20th century in some … Wikipedia
