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cultivation

(Encyclopedia) cultivation, tilling or manipulation of the soil, done primarily to eliminate weeds that compete with crops for water and nutrients. Cultivation may be used in crusted soils to…

Gezira, Al

(Encyclopedia) Gezira, AlGezira, Aläl jəzēˈrə [key], or Al JazirahGezira, Aläl jäzēˈrä [key], region, SE Sudan, occupying the tract between the White and Blue Niles south of their convergence at…

Wang Yang-ming

(Encyclopedia) Wang Yang-mingWang Yang-mingwäng yäng-mĭng [key], 1472–1529, Chinese philosopher. He developed an idealist interpretation of Confucianism that denied the rationalist dualism of the…

Iruma

(Encyclopedia) Iruma Iruma ēr&oomacr;ˈmä [key], city, Saitama prefecture, central Honshu, Japan, on the Iruma…

Coxe, William

(Encyclopedia) Coxe, William, 1762–1831, American pomologist, b. Philadelphia. His experiments and his book, A View of the Cultivation of Fruit-Trees and the Management of Orchards and Cider (1817),…

Couper, James Hamilton

(Encyclopedia) Couper, James HamiltonCouper, James Hamiltonk&oomacr;ˈpər [key], 1794–1866, American planter of Georgia, grad. Yale, 1814. Influential in promoting agricultural research and…

mulch

(Encyclopedia) mulch, any material, usually organic, that is spread on the ground to protect the soil and the roots of plants from the effects of soil crusting, erosion, or freezing; it is also used…

Philips, John

(Encyclopedia) Philips, John, 1676–1709, English poet. He was one of the few to write in blank verse in an age when the heroic couplet was the standard form. His Splendid Shilling (1701, 1705) is a…

terrace

(Encyclopedia) terrace, a level field built on top of a hillslope into the floor of a deep valley to improve cultivation of crops. Terracing uses the runoff from the hill to increase soil…

market gardening

(Encyclopedia) market gardening, cultivation, on suburban land of high value, of vegetables and flowers for the supply of nearby cities. Heavy fertilizing and the planting of successive crops are…