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沧州地区东倚勃海,地势低平,大部土壤和地下水都含有盐碱。历年在季风气候影响下,干旱季节耕层盐分升高,为害重,是造成粮食低产的主要原因之一。冬小麦是我区栽培面积最大的作物,认真总结盐碱地冬小麦增产技术,尽快把小麦生产搞上去,对迅速提高粮食总产量具有重要意义。盐碱地土壤含有过多的可溶性盐类,这些盐分都为害小麦,危害程度以碳酸盐类最重,其次为氯化物盐类,硫酸盐类较轻。各种盐类除了直接毒害之外,还会障碍作物吸收水分,当土壤盐分升高,会使吸水速度减
Cangzhou East Bohai Sea, low level, most of the soil and groundwater contains saline. Over the years, under the influence of monsoon climate, the salt content in the topsoil during the dry season is increased, which is one of the major causes of the low yield of grain. Winter wheat is the largest cultivated area in our region. The winter wheat yield-increasing technology in saline-alkali land is conscientiously summed up and the production of wheat as soon as possible is of great significance for rapidly increasing the total grain output. Saline soil contains too much soluble salts, these salts are harmful to wheat, the degree of harm to the carbonate the heaviest, followed by chloride salts, sulfate less. In addition to direct poisoning of various salts, it can also hinder the crops from absorbing moisture. When soil salinity increases, the rate of water absorption decreases