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一、选地及播前压盐盐土地区进行农业生产,必须从土壤改良.出发,根据各场具体条件,采取综合性的长期土盐改良措施.首先,应消除危害作物的盐分,然后利用技术措施,巩固脱盐效果,提高土壤肥力.南疆沙井子灌区(即胜利一总场垦区)的农业气候特点是,4—8月风力较大,风速一般3.5米/秒,蒸发量大于降雨量约40倍,以致春季土壤大量返盐,造成返青期春灌后麦苗成片死亡.因此,根据盐分分布规律、累积特点,进行选地及播前压盐工作,十分重要.
First, the selection and pre-sowing of salt-saline soil areas for agricultural production must proceed from the soil improvement .According to the specific conditions of each field, to take comprehensive long-term soil salt improvement measures.First, the salt should be eliminated from hazardous crops, and then use technology Measures to consolidate the desalination effect and improve soil fertility.The agro-climatic characteristics of the Shajingzi irrigation area in the southern Xinjiang (ie Shengli-Tiaochang Reclamation Area) are that the wind power is larger in April-August with a wind speed of 3.5 m / s and the evaporation rate is larger than the rainfall 40 times, so that a large amount of spring back to the soil salt, resulting in spring back to spring after the wheat seedlings into a piece of death.Therefore, according to the distribution of salt distribution characteristics, the selection and sowing before sowing salt work is very important.