论文部分内容阅读
桃树不同修剪时间和不同的修剪方法会影响其树势强弱、产量高低、品质优劣、结果部位外移的速度和结果寿命长短等诸多方面,所以桃树冬剪要把握好以下要点。1.把握好冬剪时间桃树冬剪应在12月上旬至次年2月下旬前进行。过早或过迟修剪都会损失树体营养,影响树势,给植株开花、坐果带来不良影响。桃树分为北方品种群和南方品种群两大类,北方品种群有些品种易发生花芽冻害现
Peach different pruning time and different pruning methods will affect the strength of its tree potential, yield level, quality advantages and disadvantages, the results of parts of the relocation speed and the results of life expectancy, and many other aspects, peach winter shear to grasp the following points. 1. Grasp the winter shear time peach winter cut should be carried out from early December to the end of February next year. Premature or late pruning will lose the tree nutrition, affect the tree vigor, flowering plants, fruit sets have a negative impact. Peach trees are divided into northern species and southern species two groups, some varieties of northern varieties prone to flower buds freeze now