continuous flow irrigation
61Murray River — For other uses, see Murray River (disambiguation). Coordinates: 35°33′32″S 138°52′48″E / 35.55889°S 138.88°E / 35.55889; 138 …
62Aquifer — Typical aquifer cross section An aquifer is a wet underground layer of water bearing permeable rock or unconsolidated materials (gravel, sand, or silt) from which groundwater can be usefully extracted using a water well. The study of water flow… …
63vegetable farming — Introduction growing of vegetable crops, primarily for use as human food. The term vegetable in its broadest sense refers to any kind of plant life or plant product; in the narrower sense, as used in this article, however, it refers… …
64AGRICULTURAL LAND-MANAGEMENT METHODS AND IMPLEMENTS IN ANCIENT EREẒ ISRAEL — Ereẓ Israel is a small country with a topographically fragmented territory, each geographical region having a distinctive character of its own. These regions include: the coastal plain, the lowlands, the hilly country, the inland valleys, the… …
65North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
66Dnieper River — Russian Dnepr ancient Borysthenes. River, eastern central Europe. One of the longest rivers in Europe, it rises west of Moscow and flows south through Belarus and Ukraine, emptying into the Black Sea after a course of 1,420 mi (2,285 km). More… …
67hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …
68Sichuan — /sich wahn , sich ooh ahn /; Chin. /sue chwahn /, n. Pinyin. a province in S central China. 67,960,000; 219,691 sq. mi. (569,000 sq. km). Cap.: Chengdu. Also, Szechwan, Szechuan. * * * or Ssu ch uan conventional Szechwan Province (pop., 2000 est …
69Tajikistan — /teuh jik euh stan , stahn , jee keuh /, n. Tadzhikistan. * * * Tajikistan Introduction Tajikistan Background: Tajikistan has experienced three changes in government and a five year civil war since it gained independence in 1991 from the USSR. A… …
70Egypt, ancient — Introduction civilization in northeastern Africa dating from the 3rd millennium BC. Its many achievements, preserved in its art and monuments, hold a fascination that continues to grow as archaeological finds expose its secrets. This article… …
