论文部分内容阅读
安达地区的土壤呈盐碱反应(pH7.4—8.8),矿化度1—3克/升,黑土层15—30cm,土壤腐殖质含量2—3％,地下水位一般距地表约0.5—2米,土壤含苏打盐类多,0—30cm耕层中盐碱含量0.14—0.20％。其中碱占62％,盐占22％,硝占16％,对甜菜生长发育有抑制作用。这类土壤土质粘重、肥力瘠薄、透水透气性能不好、易旱易涝,影响农牧业生产和发展。在盐碱地
The soil in the Anda region is salinized (pH7.4-8.8) with salinity of 1-3 g / l, black soil layer 15-30 cm and soil humus content 2-3%. The groundwater level is generally about 0.5-2 m , The soil contains more sodas, and the salt content in the 0-30 cm layer is 0.14-0.20%. Among them, alkali accounted for 62%, salt accounted for 22% and nitrate accounted for 16%, which inhibited the growth and development of sugar beet. Such soil soil sticky, fertile infertility, water permeability, poor performance, easy drought and floods, affecting the production and development of agriculture and animal husbandry. In saline land