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果树根腐病近年呈发展态势,虽然病株率较低,但往往造成全株枯死。根腐病是危害苹果、梨、桃、葡萄等果树的一种毁灭性病害。由于近些年来部分果农施肥不够科学合理,致使土壤中过多的磷元素不能被果树吸收利用,还对氮元素产生一定的拮抗作用,使土壤板结加重,通透性遭到破坏,导致果树抗病能力大幅度下降。加上部分果农过量使用极易引起烧根现象的碳酸氢铵和未经发酵腐熟
Fruit tree root rot has been developing in recent years, although the lower rate of diseased plants, but often cause the whole plant died. Root rot is a devastating disease that damages apples, pears, peaches, grapes and other fruit trees. In recent years, some fruitless fertilization is not scientific and reasonable, resulting in too much phosphorus in the soil can not be absorbed by the fruit trees, but also some of the antagonistic effect of nitrogen, so that soil compaction, permeability is damaged, resulting in fruit tree resistance Sickness decreased significantly. Coupled with the excessive use of some farmers can easily cause burning phenomenon of ammonium bicarbonate and unfermented maturity