Knowledge Title: Saline cultivation Other Title: cultivation on saline and alkaline land Knowledge Content:  Integrated agricultural measures to reduce the harm of soil saline to crops. Saline areas contain excessive water-soluble salts that hinder crop growth and are usually found in arid climates, large evaporation, high water table and mineralization, poorly drained arid areas, semi-arid areas and coastal areas affected by tidal tides, and are distributed in northwest China, north and northeast China, inland and eastern coastal areas (see salt soil, alkali soil). Taking appropriate measures to cultivate crops on saline land is of great significance to make full use of land resources and develop agricultural production.  The harm of saline to crops Different kinds of saline harm to crops vary, generally carbonate harm is greater than chloride, chloride harm is greater than sulfate. The main effect of harm lies in: (1) high concentration of saline in soil solution, difficulty in absorbing water from the root of crops, and even reverse osmosis, resulting in physiological drought.……

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