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安徽省农业农村厅办公室关于印发果园冬季管理技术指导意见的通知

2021-12-02 10:44:58 来源:安徽省农业农村厅 阅读量:18828 评论

导读:果园冬季管理工作直接关系到来年果树稳产、提质和果农收入。为有效加强果园管理,提升果实品质和优质果率,促进我省水果产业优质高效发展,现将《果园冬季管理技术指导意见》印发给你们。

  【农机网 科技创新】 各市、县(市、区)农业农村局:
 
  果园冬季管理工作直接关系到来年果树稳产、提质和果农收入。为有效加强果园管理,提升果实品质和优质果率,促进我省水果产业优质高效发展,现将《果园冬季管理技术指导意见》印发给你们。请各地结合本地水果生产实际情况,组织开展技术指导和培训,及时做好技术咨询和服务工作,为来年水果产业安全生产打下坚实基础。
 
  安徽省农业农村厅办公室
 
  2021年11月30日
 
果园冬季管理技术指导意见
 
  一、做好预防冻害工作。全省重点果区,应密切关注天气预报,根据当地果树生物学特性、产区位置和天气变化情况,积极采取有效措施,预防早冻、超低温、雪灾和晚霜对枇杷等常绿果树的危害。在极端低温来临前,可适当选择性采取以下措施预防或减低冻害的发生:一是灌水法。果园灌水可提高地温,增加土壤热容量。可采取行间微喷等途径降低冻害的发生程度。二是遮盖法。用塑料布、尼龙薄膜等覆盖果树,防止冷空气的袭击,减少地面热量向外散失。
 
  二、做好设施棚体管理工作。受“拉尼娜现象”影响,今年我省可能出现极端天气,若局部地区连降大雪,设施草莓、设施葡萄、设施桃等,可适当选择性采取以下措施减灾避灾:一是加固修复棚体。对于雪压负荷较重的设施棚体,应及时增加立柱,稳固大棚骨架,提高设施棚体受压能力。二是去除棚顶积雪。在确保人身安全的前提下,及时清除棚顶和棚间积雪,减轻棚室负重;强降雪期间,必要时可采取局部破膜处理,防止积雪压塌棚体。
 
  三是加强保温、降湿。对于草莓大棚,视气温下降程度加设“二膜”“三膜”、加保温被、加保温草帘等办法覆盖保温。此外,可采取覆盖地膜、适度通风、以及地表增加吸潮物等措施降低棚内湿度。
 
  三、做好整形修剪工作。充分利用晴好天气,有针对性地开展葡萄、桃、梨等落叶果树冬季修剪工作。一是合理确定负载。冬季修剪要根据品种特性、树龄、树势、田间管理水平、农机农艺配套等,合理确定当年修剪量,适当安排明年负载量。幼树要依据品种特性和株行距,选择适宜的树形,注重主枝培养。成年树要依据树形,合理配置结果枝组。二是改善光照。适当疏除细枝、弱枝、交叉枝、过密枝、徒长枝、病虫枝,以及少部分背上枝和直立旺枝,重在打开行间和层间光照,改善果园通风透光条件。
 
  四、做好清洁果园工作。果树冬季修剪完成后,要及时做好清园和园区整理工作。一是清理果园。清除果园内枯枝、病虫枝、落叶、杂草,并集中销毁或深埋。成年以上的落叶梨树等,可适当采取刮除树干老翘皮的方法,去除隐藏的病菌和虫卵,减少越冬指数。二是全园杀菌。各地依据果树品种特性,利用石硫合剂等进行冬季树干涂白,也可在早春时期有选择地喷布石硫合剂等方法杀灭果园越冬病虫。
 
  五、做好冬季施肥工作。加强果园土肥水管理,合理早施、增施充分腐熟的有机基肥,有利于增强树势,提高树体抗性。一是深翻冻垡。新建果园应做好冬季田地深翻工作;老果园宜翻树盘。提倡行间利用小型农机具,结合施肥对果园进行深翻冻垡。二是合理施肥。认真贯彻有机肥替代化肥行动,果园宜适量增施充分腐熟后的无害化有机基肥和饼肥,减少鸡粪、猪粪和化肥用量。
 
  六、做好清沟沥水工作。各地要把握晴好天气时机,做好果园行间沟、渠堵塞物的清理和疏通工作,确保果园内给水和排水系统通畅,防止冬雨雪天气果园发生渍害涝害现象。
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