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邯郸市DB1304/T439-2023《冬小麦-夏玉米周年籽粒机收栽培技术规程》解读

2023-09-04 16:21:37 来源:农机网整理发布 阅读量:39546 评论

导读:规定了冬小麦-夏玉米周年机籽粒收栽培技术的术语和定义、品种选择和种子处理、自然条件、小麦季栽培技术、玉米季栽培技术。适用于邯郸市冬小麦-夏玉米一年两熟种植区的籽粒机收栽培技术规程。

  【农机网 政策与标准】2023年8月30日,邯郸市DB1304/T439-2023《冬小麦-夏玉米周年籽粒机收栽培技术规程》开始实施。该标准由中国农业科学院作物科学研究所提出,由中国农业科学院作物科学研究所、河北农业大学、邱县市场监督管理局,规定了冬小麦-夏玉米周年机籽粒收栽培技术的术语和定义、品种选择和种子处理、自然条件、小麦季栽培技术、玉米季栽培技术。适用于邯郸市冬小麦-夏玉米一年两熟种植区的籽粒机收栽培技术规程。
 

 

  冬小麦籽粒机械收获与入库——
 
  收获时期及作业要求:在小麦蜡熟末期至完熟初期,植株枯黄,颖壳变白,籽粒含水量在15%以下时收获。选用小麦联合收割机直接收获小麦籽粒。联合收割机技术要求和作业质量符合NY/T 995中的规定。根据小麦长势和种植密度合理控制机械田间作业行进速度,采用大油门低档作业,以保证收获质量。籽粒收获总损失率≤2%,籽粒破碎率≤ 2%,秸秆粉碎长度≤10 cm,秸秆粉碎长度合格率≥92%,留茬平均高度≤8 cm,秸秆抛洒不均匀度≤30%。
 
  籽粒处理:将收获的籽粒及时晾晒或烘干,含水量达到13.0%以下时入库贮藏。籽粒烘干作业质量符合GB/T 21016中的规定。
 
  玉米季栽培技术——
 
  播种
 
  播期和播量:6月上中旬,小麦收获后及时抢茬直播,播种量可根据品种特性、生态条件酌情增减。紧凑中穗型玉米品种的留苗密度为67500 株/hm2~75000 株/hm2,大穗型品种为60000株/hm2~67500株/hm2。
 
  免耕播种:采用机械免耕播种,等行种植行距为 60 cm,或者是大小行种植行距一般为 80 cm,小行行距为40 cm;播种深度为4 cm~5 cm,粘湿土壤播种深度控制在3 cm~4 cm为宜,而沙性土壤的播种深度以4 cm~5 cm为宜。播种作业过程中,严格操作规程,播种速度不可过快,行走要匀要直,中途尽量不要停车,达到下种均匀,覆土播深一致。作业质量符合NY/T 1628中的规定。
 
  夏玉米籽粒机械收获与入库——
 
  收获时期及作业要求:玉米苞叶枯黄、果穗中部籽粒乳线消失、籽粒基部黑色胚乳层出现,籽粒含水量降至25%以下时收获,最晚收获期不晚于10月下旬。
 
  选用玉米籽粒联合收割机直接收获玉米籽粒。玉米籽粒联合收割机的技术要求和作业质量符合GB/T 21962中的规定。根据玉米长势和种植密度合理控制机械田间作业行进速度,采用大油门低档作业, 以保证收获质量。籽粒收获总损失率≤5%,籽粒破碎率≤ 5%,秸秆粉碎长度≤10 cm,秸秆粉碎长度合格率≥92%,留茬平均高度≤8 cm,秸秆抛洒不均匀度≤ 30%。
 
  籽粒处理:将收获的籽粒及时晾晒或烘干,含水量达到14%以下时入库贮藏。籽粒烘干作业质量符合GB/T 21017中的规定。
 
  点击下方下载完整标准文本。
 
  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。
 
相关资料下载:

439——冬小麦标准.pdf

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