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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

2023-04-11 15:37:20 来源:农机网整理发布 阅读量:34550 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适用于河北省二作区马铃薯全程机械化栽培。

  【农机网 政策与标准】2022年2月28日,河北省市场监督管理局批准发布DB13/T 5489-2022《二作区马铃薯全程机械化栽培技术规程》,该地方标准自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。
 
  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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