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内蒙古DB15/T 2802—2022《河套平原灌区玉米机械籽粒直收栽培技术规程》

2023-05-19 13:58:07 来源:农机网整理发布 阅读量:34638 评论

导读:规定了内蒙古河套平原灌区玉米机械化籽粒直收技术的选地整地、品种选择、播种作业、田间管理及收获作业等技术内容。适用于内蒙古河套平原灌区玉米种植,相近生态区可参照执行。

  【农机网 政策与标准】2022年8月30日,内蒙古自治区市场监督管理局批准发布DB15/T 2802—2022《河套平原灌区玉米机械籽粒直收栽培技术规程》,该标准自2022年9月30日实施。
 
  该标准由内蒙古自治区农牧厅提出,由内蒙古自治区农业标准化技术委员会(SAM/TC 20)归口,由内蒙古自治区农牧业科学院、巴彦淖尔市农牧科学研究所起草。
 
  规定了内蒙古河套平原灌区玉米机械化籽粒直收技术的选地整地、品种选择、播种作业、田间管理及收获作业等技术内容。适用于内蒙古河套平原灌区玉米种植,相近生态区可参照执行。
 
  选地:选择地势平坦,地力均匀、适宜机械化作业的地块。
 
  整地:秋收后深翻、旋耕灭茬:机收后,及时进行田间残膜、残茬处理,撒施农家肥1000kg/667㎡-1500kg/667㎡,深翻30cm以上。
 
  冬汇:在地表封冻前进行冬汇,灌水量80㎡/667㎡-100㎡/667㎡。
 
  播前耙地:播种前进行耙地,深度为10cm-15cm,耙后碎土良好并根据土壤墒情及时镇压。
 
  品种选择:选择国家审定、自治区审定或引种备案适宜当地种植的玉米籽粒直收品种,品种应符合DB15/T 1974,种子质量符合GB 4404.1单粒播质量要求。
 
  播种——
 
  播期:当10 cm土层温度稳定通过8 ℃~10 ℃时进行播种。
 
  种植方式:大小行膜下滴灌采用40 cm+80 cm或40 cm+70 cm,黄灌采用60 cm等行距。
 
  种植密度:5500株/667 m2~6000株/667 ㎡ 。
 
  播种作业:采用玉米精量播种机一次完成施肥、覆膜、播种作业。播深3 cm~5 cm,种肥用量为玉米专用复合肥30kg/667㎡或磷酸二铵25kg/667㎡,种肥与种子距离应不涉于5cm。
 
  田间管理——
 
  除草:土壤封闭选用乙草胺·莠去津合剂、精异丙甲草胺·莠去津合剂、精异丙甲草胺·津去津·噻吩磺隆合剂、在玉米4-5叶期选用茎叶草剂烟嘧磺隆·硝磺草酮·莠去津合剂、烟嘧磺隆·莠去津合剂。用法用量及操作依照GB/T 8321.6和GB/T 8321.7的规定。
 
  追肥:拔节期结合中耕追施尿素10kg/667㎡-15kg/667㎡;大喇叭口期灌水追施尿素15kg/667㎡-20kg/667㎡。
 
  灌水:在拔节期、大喇叭口期、抽雄吐丝期、灌浆期及时灌溉,整下生育期水量控制在180㎡/667㎡-230㎡/667㎡。
 
  虫害防治:拔节后根据病虫害情况及时防治。采用机械喷药或者无人机飞防,重点防治红蜘蛛,防治方法参照GB/T 8321.10。
 
  收获时期:生理成熟15 d后,籽粒含水率小于等于25.0%。
 
  收获:采用谷物联合收获机或玉米专用收粒机进行收获,收获条件符合GB/T 21962规定。
 
  收获质量:籽粒破碎率小于等于5.0%,总损失率小于等于5.0%,籽粒含杂率小于等于3.0%。
 
  烘干:收获后籽粒应及时晾晒或进行烘干作业,烘干质量符合GB/T 21017规定。
 
  收获后处理——
 
  秸秆处理:机械收粒后,秸秆粉碎还田或打捆离田。
 
  残膜回收:选择滚筒式地膜捡拾机回收残膜,地膜回收率达80%以上,残膜含杂率低于30%。
 
  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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