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安徽省《DB34/T 3869-2021砂姜黑土地区秸秆全量覆盖地麦玉免耕播种机械化作业技术规程》

2022-11-14 11:30:07 来源:农机网整理发布 阅读量:38947 评论

导读:适用于砂姜黑土地区秸秆还田下麦玉免耕机械化播种作业。

  【农机网 政策与标准《DB34/T 3869-2021砂姜黑土地区秸秆全量覆盖地麦玉免耕播种机化作业技术规程》这一地方标准由安徽农业大学提出,由安徽省农业标准化专业委员会归口,由安徽农业大学、安徽省农业机械技术推广总站、蒙城育田机械有限公司起草。于2021年1月25日由安徽省市场监督管理局批准发布,该地方标准自2021年2月25日开始实施。
 
  规定了砂姜黑土地区秸秆全量覆盖地麦玉免耕播种机化作业的小麦秸秆全量覆盖还田玉米免耕播种机械化作业技术规程、玉米秸秆全量覆盖还田小麦免(少)耕播种机械化作业技术规程。适用于砂姜黑土地区秸秆还田下麦玉免耕机械化播种作业。
 


 

  玉米免耕播种作业——
 
  作业要求:
 
  砂姜黑土地区玉米适宜播种期为 6 月 1 日~15 日。在小麦收获后土壤墒情适宜情况下,适时抢墒早播;墒情不足的情况下,及时浇水补墒播种,播后补充灌溉(浇蒙头水)确保一播全苗。
 
  合理施肥要求氮、磷、钾肥配合、有机无机肥料统筹使用,肥料选用应符合 NY/T 496 的要求。
 
  侧位深施肥,基肥做到肥、种分离,肥料施于种子侧 8 cm ~ 10 cm、种下 5 cm ~ 8 cm 处。
 
  玉米单粒精量穴播,采用等行距一穴一粒种植,半紧凑型玉米品种定苗 4000 株~4500 株/ 667m2 为宜,紧凑型玉米品种每亩定苗 4500 株~5000 株/667m2 为宜。
 
  作业质量:
 
  播种行距 60 cm,株距 22 cm~28 cm,播种深度 3 cm~5 cm,播深深度合格率≥75.0%,邻接行距合格率≥80.0%,粒距合格率≥95.0%。
 
  晾籽率≤1.5%,漏播率≤2.0%,重播率≤2.0%。播种后无架种晾种,无漏种堆种现象。
 
  施肥深度合格率≥75.0%,种肥间距合格率≥90.0%。无漏肥、堆肥现象,切忌种肥同位。
 
  覆土镇压连续,做到种落实土,镇压适度。
 
  玉米秸秆全量覆盖还田小麦免(少)耕播种机械化作业技术规程——
 
  玉米秸秆还田处理:
 
  玉米秸秆全量覆盖还田,留茬高度≤20 cm,秸秆粉碎长度≤10 cm,且以玉米秸秆撕裂状为宜, 秸秆粉碎长度合格率≥90%,抛撒(铺放)不均匀率≤20%。
 
  玉米进入完熟期,采用配带秸秆粉碎装置的玉米联合收割机收获作业,若未配带粉碎装置的需另外单独采用秸秆粉碎还田机进行作业,其作业质量应符合 NY/T 2090 的规定。
 
  种子处理:
 
  小麦品种选用当地农业部门推广适宜砂姜黑土地区机械化作业的优良品种,种子质量应符合 GB 4404.1 的规定。
 
  小麦播种前用保护性杀菌剂进行拌种,拌种要均匀,拌种后闷种 20~24 h。
 
  田块要求:麦玉周年秸秆还田下播种小麦时,间隔 2~3 年内进行深松(翻)田块,选择土壤墒情适宜下播种。
 
  小麦免(少)耕播种机选择:选用带状旋耕施肥复式播种机,一次性完成条带旋耕、施肥、播种、覆土、镇压等工序。
 
  小麦免(少)耕播种机的性能指标应符合 GB/T 9478 的规定;小麦免(少)耕播种机作业质量指标应符合 NY/T 1411 的规定。
 
  小麦免(少)耕播种机安装与调整:
 
  播种机安装:播种机采用三点悬挂方式与拖拉机挂接。
 
  行距调整:调整播种单体在机架横梁上的位置实现播种行距的调整,并使各播种总成或排种管之间的距离保持一致。
 
  施肥量与施肥深度调整:采用外槽轮式、气送式(如机械定量供种与一阶力气输送组合)或其他适宜的施肥器。改变排肥槽轮在肥料箱中的工作长度,实现施肥量调整。施肥深度的调整通过改变排肥开沟器在播种机机架上的位置实现。
 
  播量与播种深度调整:当行距一定时,亩播量主要通过调整外槽轮长度或排种主轴转速实现,播种深度的调整通过改变播种机地轮与排种管的相对位置实现,降低地轮,播种深度减小。
 
  小麦免(少)耕播种作业——
 
  作业要求:
 
  砂姜黑土地区小麦适宜播种期为 10 月中旬(日均温度 15℃)。在玉米收获后土壤墒情适宜情况下,适时抢墒播种;墒情不足的情况下,及时浇水补墒播种。
 
  采用有机肥与无机肥,氮、磷、钾、微肥配施,施肥质量应符合 NY/T 1003 的规定。
 
  侧位深施肥,基肥做到肥、种分离,肥料施于种子侧 3 cm~5 cm、种下 5 cm~8 cm 处。
 
  小麦免(少)耕条播,播种量为 10.0 kg~12.5 kg/667m2 为宜,迟于播种适期的田块,要适当增加播种量,苗期若有播种断条的地块,要及时补苗,确保苗全。
 
  结合播种环节实施田间封闭除草,药液用量和施用方法按照相关植保要求进行。
 
  作业质量:
 
  播种行距 20 cm,播种深度 3 cm~4 cm,播深深度合格率≥75.0%,邻接行距合格率≥80.0%。
 
  晾籽率≤3.0%,断条率≤5.0%。播种后无架种晾种,无断条堆种现象。
 
  施肥深度合格率≥75%,种肥间距合格率≥90.0%,无漏肥、堆肥现象,切忌种肥同位。
 
  覆土镇压连续,无因堵塞造成的地表拖堆,无秸秆堆积。
 
  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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