一、休眠期(12月至翌年2月底)这3个月,树上无消耗,根部不吸收,果树完全处于冬眠状态。二、贮存营养消耗期(3月至4月)这一阶段,历经花芽萌动期、初花期、盛花期、谢花坐果期、幼果细胞形成初期、新梢初期生长。从3月初花芽开始活动到4月20日前后谢花后,树上无枝叶,不能进行光合作用。从谢花后到4月底,陆续长出新枝新叶,但光合能力很弱。因此,这一阶段消耗的养分,完全依赖于树体贮存的养分。 First, the dormant period (December to the end of February the following year) These three months, no consumption of trees, roots do not absorb, fruit trees completely in hibernation. Second, the storage of nutrition consumption period (March to April) this stage, after the flower bud germination period, early flowering, full flowering, Xie flower set fruit period, early fruit cell formation, early shoot growth. Flower bud from early March activities began to thank April 20 before and after Thanksgiving, the tree without leaves, can not carry out photosynthesis. From Xiehua to the end of April, new branches and new leaves grow one after another, but photosynthetic ability is very weak. Therefore, the nutrients consumed during this phase are completely dependent on the nutrients stored in the tree.