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果树根颈部位容易得腐烂病的原因考虑有如下几方面:1、根颈,是指果树地上部与地下部的交接处。它是树体营养流必经的通道,秋季进入休眠期最晚,春季又最早脱离休眠,因而是果树树体生命活动最活跃的部位,对外界环境条件的变化非常敏感,加之根颈周围气温变化剧烈,如果果园管理粗放,初冬不进行防寒,早春又不涂白,很容易造成冻害和日灼,给腐烂病蔓延创造了条件。
The root cause of the rotten neck of the fruit tree is easy to get the reasons for the following aspects: 1. The root neck refers to the junction of the upper part of the fruit tree and the underground part. It is the channel through which the vegetative flow of the tree must pass. The autumn is the last to be dormant and the earliest to be dormant from spring. So it is the most active part of the life of fruit trees and is very sensitive to the change of environmental conditions. Vast changes, if the extensive management of the orchard, early winter without cold, early spring without white, it is easy to cause frost damage and sunburn, to spread the rot to create the conditions.