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新疆灌区土地盐碱化比较严重,须建立排水系统改良土壤。过去都是用明排的办法。30多年来挖了2万多公里的排水明渠,对治理盐碱地和改善农业生产条件起了一定作用。但明排工程投资大,占地多,渠坡垮塌、渠床淤积严重,地下水降深满足不了作物生长需要,盐碱危害仍未消除。为了寻求更好的排水途径,新疆生产建设兵团于1985年在农二师二十九团农场进行了波纹塑料暗管排水的实验。经过一年的对比观测,效果显著。现将二十九团农场实验成果简单介绍如下:一、实验区基本情况和规划设计试验区布置在二十九团三支二斗渠到四斗渠的条田范围内,土壤为砂壤土,一米土层平均含盐量为
The land in Xinjiang irrigated area is more salinized, and the drainage system must be established to improve the soil. In the past are using the Ming Pai approach. Drainage open channels dug for more than 30,000 years for more than 30 years played a role in harnessing saline-alkali land and improving agricultural production conditions. However, the platoon project has a large investment and covers an extensive area. The drainage slope collapses and the canal bed is seriously silted up. The groundwater drop can not meet the needs of crop growth, and the damage caused by salt and alkali has not yet been eliminated. In order to seek a better way to drain water, the Xinjiang Production and Construction Corps conducted experiments on corrugated plastic tube drainage in 1985 at the Nongfu division twenty-nine regiment farm. After a year of comparative observation, the effect is remarkable. The twenty-nine group farm experiment results are briefly described as follows: First, the experimental area of the basic situation and planning and design of the experimental area layout in the twenty-nine regiments of three two to four Douqu canal bar range, the soil is sandy loam, one meter The average soil salt content is