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内蒙古《DB15/T 2810—2022大兴安岭东南麓玉米免耕补水播种技术规程》

2022-12-02 11:20:49 来源:农机网整理发布 阅读量:39431 评论

导读:该标准规定了大兴安岭东南麓玉米免耕补水播种的选地、播前准备、播种、田间管理、收获及秸秆处理等技术要求。适用于大兴安岭东南麓旱作区。

  【农机网 政策与标准】2022年9月9日,内蒙古自治区市场监督管理局批准发布了《DB15/T 2810—2022大兴安岭东南麓玉米免耕补水播种技术规程》,该地方标准自2022月10月9日起实施。

  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、兴安盟农牧技术推广中心、内蒙古大学、内蒙古自治区农牧业技术推广中心、内蒙古科学技术研究院、磴口县绿色产业发展中心起草。
 
  该标准规定了大兴安岭东南麓玉米免耕补水播种的选地、播前准备、播种、田间管理、收获及秸秆处理等技术要求。适用于大兴安岭东南麓旱作区。
 
  播种——
 
  种肥配置:目标产量为600 kg/667 m2~700 kg/667 m2 施磷酸二铵10 kg/667 m2~15 kg/667 m2、硫酸钾7 kg/667 m2~8 kg/667 m2、尿素3.5 kg/667 m2~4 kg/667 m2,或采用测土配方施肥技术施用玉米专用配方肥。地下害虫多发区,加1.5 kg/667 m2 ~2 kg/667 m2的“辛硫磷颗粒剂”与种肥混施。肥料使用应符合NY/T 496要求。
 
  补水播种:5 cm~10 cm土层温度稳定8 ℃~10 ℃时播种,土壤相对含水量低于65%,则需要进行补水,一般每667 m2用水150 kg~300 kg,表层土壤湿润即可。选用免耕精量播种机一次性完成清垄、开沟、施肥、播种、补水、覆土等播种作业,播深4 cm~5 cm,种肥隔离5 cm~6 cm。
 
  播种方式及密度:等行距种植模式下,在上年度垄台上播种,行距65 cm,株距为19 cm~21 cm;大小垄种植模式下, 在上年度宽行间播种,大垄70 cm~80 cm、小垄40 cm~50 cm,株距在20 cm~21 cm。种植密度5000~ 5500株/667 m2。
 
  田间管理——
 
  封闭除草:播种后出苗前采用悬挂式喷杆喷雾机进行封闭除草。每667 m2用82%乙草胺120 mL~150 mL+75%噻吩磺隆1 g+2,4-D异辛酯乳油15 mL,兑水20 kg~25 kg均匀喷施;选用其他玉米苗前除草剂,需严格按说明书要求配液后均匀喷洒。未进行封闭除草或杂草较重地块,在玉米3~5叶期,选用玉米苗后专用除草剂进行除草。除草剂使用应符合GB/T 8321要求。除草剂使用人员安全应符合NY/T 1276要求。
 
  中耕施肥:玉米拔节期到小喇叭口期,采用中耕深松施肥机进行中耕、施肥、除草、培土一次作业完成,深松深度25 cm~30 cm,追施尿素15 kg/667 m2~20 kg/667 m2。
 
  玉米螟统防统治:小喇叭口期,玉米螟化蛹率达20%时,后推10 d,为第一次释放蜂适期,间隔5 d~7 d再放第二次。释放赤眼蜂1.5万头/667 m2,第一次释放0.7万头/667 m2,第二次释放0.8万头/667 m2。
 
  收获及秸秆处理——
 
  收获时间:籽粒乳线消失、黑层出现、苞叶枯松生理成熟后及时收获。
 
  收获方式——
 
  机械收穗:籽粒含水率小于等于30%时,采用玉米果穗联合收获机收获果穗,留茬20 cm~30 cm,同时粉碎秸秆,收获时注意匀速行驶。收获后清理残留苞叶,风干晾晒。
 
  机械收粒:籽粒含水率小于等于25%后,采用籽粒联合收获机直收籽粒。留茬20 cm~30 cm,收获时注意匀速行驶,田间产量损失率小于等于5%,籽粒破碎率小于等于3%、杂质率小于等于1%。
 
  秸秆回收:秋季机械收获后,选用玉米秸秆回收机粉碎、回收、打包,移出田外。
 
  
 
  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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