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河北省《DB13/T 5489-2022二作区马铃薯全程机械化栽培技术规程》解读

2022-10-08 14:01:45 来源:农机网整理发布 阅读量:40280 评论

导读:该标准规定了二作区马铃薯全程机械化栽培的术语和定义、播前准备、机械播种、田间管理、病虫害防治及机械杀秧与收获。

  【农机网 政策与标准】在马铃薯机械化作业中, 机械化播种是非常关键的一项技术。这项技术还融合了很多的其他作业环节, 诸如开沟、施肥、播种、覆土、起垄以及镇压。这项技术将省时、省力以及省工等众多优点融为一体。另外, 通过使用机械化播种, 还能实现定位和定量施肥, 使得废料的利用率大大提高, 同时还避免了因为不规范操作所带来的污染和损失。
 
  随着其机械化水平的不断提高,各地区相关技术标准也得以逐步完善。河北省《DB13/T 5489-2022二作区马铃薯全程机械化栽培技术规程》这一标准是由河北省农业农村厅提出,由石家庄市农林科学研究院起草,该标准于2022年2月28日由河北省市场监督管理局,自2022年3月31日起实施。
 
  该标准规定了二作区马铃薯全程机械化栽培的术语和定义、播前准备、机械播种、田间管理、病虫害防治及机械杀秧与收获。适用于河北省二作区马铃薯全程机械化栽培。
 
  机械播种——
 
  播种时间:土壤10 cm地温稳定通过7 ℃~8 ℃,适宜播期2月下旬~3月中旬。
 
  播种机:选用的马铃薯播种机开沟、施肥、撒杀虫剂、播种、覆土起垄、铺设滴灌带及覆膜一次性完成, 并达到下列指标要求:播深8 cm~10 cm,播深一致、行距准确、下种均匀、不漏行漏穴,空穴率不大于3%。株距合格率不小于80%,播种深度合格率不小于75%,施肥断条率不大于3%,行距合格率不小于90%,起垄高度、宽度误差为2 cm~3 cm,合格率不小于80%,覆土覆膜要求均匀严实。马铃薯播种机应符合GB/T 25417要求。
 
  播种方式:大垄双行,垄距90 cm~100 cm,垄上行距15 cm~20 cm,株距30 cm~33 cm,交错播种;地膜宽110 cm,垄顶宽50 cm~60 cm,垄高22 cm~25 cm;亩施100 kg的马铃薯专用肥(N-P2O5-K2O=15-10-20)。施肥应符合NY/T 496规定。
 
  田间管理——
 
  机械培土:防止大风揭膜,播种后20 d或出苗前5 d,用培土机膜上培土2 cm~3 cm。通过调整培土机与地面夹角调整垄高和垄宽,作业后应垄沟整齐、垄形完整,避免培土刀片刮伤地膜,保持膜上培土厚度均匀。
 
  封地除草:用喷药机喷除草剂进行封地除草,膜上培土后,亩用33%二甲戊灵(施田补)100 ml,300倍液封地除草。喷除草剂达到:喷雾均匀,药液雾化良好,各喷头喷量均匀一致,有效覆盖密度每平方厘米不小于20个雾滴,药液在地面覆盖率达到100%。
 
  水肥一体化:采用水肥一体化灌溉机进行追肥浇水,追肥前先滴灌1小时清水,追肥结束后再滴灌半小时清水。齐苗后随滴灌亩施液态氮25 kg;现蕾期追施大量元素水溶肥10kg~15kg。滴灌符合DB13/T 1607要求;肥料使用按NY/T 496的规定执行。
 
  化控:使用植保无人机进行化控。封垄后植株出现徒长,亩用30g烯效唑可湿性粉剂70倍液进行植保无人机喷施。植保无人机雾化扇形喷嘴喷出药液中间多、两侧少,要调整相邻喷嘴间距,使其重叠范围保持在30%以上,确保喷洒效果;飞行高度控制在1.5 m~3 m,飞行速度2.3 m/s~5. 5m/s,保持稳定飞行,药物雾滴均匀分布。
 
  病虫防治:封垄前,利用大型喷药机预防真菌性病害晚疫病、黑痣病,蚜虫以及细菌性病害黑胫病,雾化良好,喷雾均匀,喷头与作物距离调至高度40 cm~50 cm,不漏喷、不重喷,药液在植株上的覆盖率达到100%。封垄后,用植保无人机预防早疫病和炭疽病,无人机要求同7.4。防治地下害虫的药剂随滴灌浇水进行。防治方法符合DB13/T 2357-2016规定。
 
  机械杀秧与收获——
 
  杀秧:马铃薯杀秧应在收获作业前3 d~5 d进行,应选用结构型式、工作幅宽符合马铃薯种植垄距要求的打秧机械。打秧时,调节打秧机限深轮的高度来控制适宜的留茬高度为10 cm~15 cm,漏打率小于2%,伤薯率小于1%。杀秧前拆除滴灌总管道,杀秧机械符合NY/T 2706要求。
 
  收获:马铃薯收获机工作幅宽应大于马铃薯生长宽度两边各10cm以上,挖掘深度应比马铃薯种植深度深10cm以上,收获挖掘铲的入土角度10°~20°。马铃薯收获作业质量达到挖净率≥98%,明薯率≥ 97%,伤薯破皮率≤3%。收获机符合NY/T 2464要求。
 
  可点击下方下载完整标准文件。
 
  注:本文由农机网(www.nongjx.com)整理发布,资料来源:地方标准信息公共服务平台。
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