盐碱对哈密大枣生长的伤害

在咸水湖畔的高阶台地和湖边滩地上栽植哈密大枣,进行了树木成活率、新梢生长量、叶片生长状况和蒸腾速率、气孔阻抗、叶温日变化的测定。结果表明,由于含盐量少的缘故,生长在台地上的哈密大枣,其成活和生长状况都要好于滩地,各项生理指标也均好于滩地。揭示了影响树木生长的水分生理状况和过程。提出了生产中哈密大枣的造林,应该同一般中生植物一样,栽培满足植物生长的最佳土、肥、水等条件,精心作业,集约栽培。

Damage of Saline-alkali Soil to the Growth of Chinese Date in Hami

The survival rate, growth of new tip of branch, growing condition and transpiration rate of leaves, impedance of stomata, leaf temperature, variety of leaves and air temperature had been measured in the plant of the Hami Chinese date on the lakeside beach and the high step tableland in the side of saltwater lake. The results indicated that, because lacking of salt, the survival rate, growing conditionand every physiological index of the Hami Chinese date which were planting on the tableland are more better than those of being planted in beach land. It also explained the physiological status of water, which had a great influence on growth of the plant. Finally, it was suggested that the planting Hami Chinese date, same as general plant, should be satisfied with best earth, fertilizer andwater conditions, elaborate growth, intensive cultivation.