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抗御自然灾害的能力低,农业生产条件差,是和各类低产土壤中存在着障碍因素密切相关的。削弱或消除土壤中的这种限制因素,其潜力将会得到发挥。吉林省的低产田土壤主要是白浆土、风沙土和盐碱土。应采取以下技术措施进行改良: 一、水利工程措施根据“盐随水来,盐随水去”的规律,灌溉、排水、冲洗等水利工程措施,目前仍占主导地位。该项技术措施具有降低地下水位,防止盐分上升,脱盐块,创造不再退化的土壤条件等优点,是其它措施无法替代的。现在吉林省的水利工程措施随
The low ability to resist natural disasters and poor agricultural production conditions are closely related to the obstacles that exist in various low-yielding soils. The potential for reducing or eliminating such constraints in soils will be realized. The low-yielding soils in Jilin Province are mainly white earth, aeolian sandy soil and saline-alkali soil. The following technical measures should be taken to make improvements: First, water conservancy measures still dominate water conservancy measures based on the law of salt going with water and salt going with water, irrigation, drainage and flushing. This technical measure has the advantages of lowering groundwater level, preventing salt rise, desalting blocks and creating soil conditions no longer degrading, which are irreplaceable by other measures. Jilin Province now with the hydraulic engineering measures