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一、适时造林掌握造林时间是确保造林成功的关键技术措施,我国北方冬季干旱,气温低,秋栽越冬或早春栽植,幼树易抽干死亡,故不宜秋栽或早春栽植。3月下旬至4月中旬,气温升高,地温也已回升,栽后能很快发芽生根,萌芽吐绿时茎尖产生的激素往下运输,有利于断根伤口愈合和萌生新根。迟栽因气温较高,苗木未生根就大量展叶,消耗水分养分,造成幼树缺水枯死。实践证明,枣苗萌芽期栽植
I. Timely Afforestation Grasping afforestation time is the key technical measure to ensure success of afforestation. In northern China in winter, the temperature is low, the autumn is planted in winter or early spring, and the sapling is easy to dry out. Therefore, it is not suitable for autumn planting or early spring planting. From late March to mid-April, the temperature rises and the ground temperature has risen. After planting, it can germinate and root quickly. When the sprout spit green, the hormone produced by the shoot tip is transported downward, which is beneficial to the root pruning and root initiation. Late planting due to higher temperatures, seedlings did not take root in a large number of leaf exhibition, consumption of water nutrients, resulting in young trees dead water. Practice has proved that jujube seedlings planted in the bud