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黑龙江省:DB23/T 2479—2019《玉米秸秆覆盖还田免耕播种机械化种植技术规程》

2024-01-11 13:45:50 来源:农机网整理发布 阅读量:23502 评论

导读:规定了规定了玉米秸秆覆盖还田免耕播种机械化作业的术语和定义,及秸秆覆盖、免耕播种、机械植保、中耕追肥、机械收获及机具配套等技术要求。本标准适用于全省玉米秸秆覆盖还田情况下机械化免耕播种作业。

  【农机网 政策与标准】2019年11月20日,黑龙江省市场监督管理局批准发布DB23/T 2479—2019《玉米秸秆覆盖还田免耕播种机化种植技术规程》,该地方标准自2019年12月19日起实施。


 

  该标准由黑龙江省农业农村厅提出,由黑龙江省农业标准化技术委员会归口,由黑龙江省农业机械化技术推广总站起草。规定了规定了玉米秸秆覆盖还田免耕播种机化作业的术语和定义,及秸秆覆盖、免耕播种、机械植保、中耕追肥、机械收获及机具配套等技术要求。本标准适用于全省玉米秸秆覆盖还田情况下机械化免耕播种作业。
 
  秸秆粉碎覆盖——
 
  技术要求:玉米秸秆直接粉碎还田,留茬高度 10cm~20cm,秸秆粉碎长度≤10cm,且以秸秆撕裂状为宜,均匀抛撒覆盖地表。
 
  作业要求:秋收时采用配带秸秆粉碎装置的玉米联合收获机(无粉碎装置的需另用秸秆粉碎还田机)作业,要求收获、运输等车辆进地作业时不破坏原垄形,减少进地碾压次数,确保下年度玉米原垄播种作业质量。
 
  免耕播种——
 
  作业条件
 
  地块:选择2年内有深松(翻)基础的地块,当土壤5cm耕层地温稳定通过6℃以上适时播种。
 
  种子:选用通过国家或省级审定的、由当地农业部门推广适宜机械化作业的优良品种。
 
  肥料:根据土壤肥力和目标产量的要求,确定施用化肥的种类和施肥量。
 
  机具:选择在我省经过试验示范适宜的免耕播种机。
 
  技术要求:采用免耕播种机在有秸秆覆盖的原垄上一次性完成清障、窄开沟、施肥播种、覆土重镇压等作业。
 
  按所选品种农艺要求设定株距,播深为镇压后 3cm~5cm,施肥深度 8cm~10cm。
 
  作业要求:免耕播种作业做到不重播、不漏播、播深一致,保证种子播入湿土中。播种机需加装智能监控设备确保播种过程中不出现漏播和断肥。
 
  机械植保:采用植保机械在播种后出苗前喷洒高效、低毒、低残留的化学除草剂进行土壤封闭除草,或玉米出苗后 3~5 叶期及时进行化学除草,并视病虫害发生情况适时喷雾防治作业。
 
  中耕追肥:采用中耕施肥机械在玉米拔节前后结合深松作业进行追肥,施肥深度 8cm~10cm,深松深度 18cm~22cm,施肥后覆土严密。
 
  机械收获:玉米完熟后,采用配带秸秆粉碎装置的自走式玉米摘穗收获机进行收获和秸秆还田作业,秸秆粉碎长度以≤10cm 且成撕裂状为宜,均匀抛撒覆盖地表。当玉米籽粒水分降到25%以下时,可采用自走式玉米籽粒联合收获机进行直接脱粒收获。
 
  机具配套:此标准需配备以下农机具:拖拉机、秸秆粉碎还田机、免耕播种机、中耕犁(除草)、植保喷药机、深松机。
 
 
  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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