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实施化肥减量化行动,助力农业高质量发展

2024-05-04 12:40:07 来源:农牧业生态资源保护中心 阅读量:16268 评论

导读:近年来,乌兰察布市针对主要作物施肥不足与施肥过量并存、施肥结构不合理、肥料利用率低、施用品种单一等问题,不断改进施肥方式,推进科学施肥等技术措施,使化肥使用量持续保持负增长,肥料利用率和耕地地力不断提升。

  【农机网 科技创新】 化肥减量化行动是国家实施“藏粮于地、藏粮于技”战略的重要措施,是保障粮食安全和生态安全的重要手段。近年来,乌兰察布市针对主要作物施肥不足与施肥过量并存、施肥结构不合理、肥料利用率低、施用品种单一等问题,通过实施有机肥替代,推广测土配方施肥技术,集成减肥增效技术试验示范,优化施肥结构和肥料种类,不断改进施肥方式,推进科学施肥等技术措施,使化肥使用量持续保持负增长,肥料利用率和耕地地力不断提升。
 
  多元替代减量增效。大力推广实施有机肥、秸秆还田利用、畜禽粪污资源利用等多元替代施肥方式,结合深耕深松,将有机质还田,缓解了长期施用化肥导致的土壤板结、肥力下降等问题,逐步提高土壤有机质含量,培肥地力,秸秆利用率、畜禽粪污利用率分别稳定在85%、90%以上。
 
  精准施肥减量增效。持续完善配方施肥方案,不断扩大精准施肥技术覆盖面,利用耕地质量监测点和肥料肥效试验数据,制定和更新作物施肥配方87个,充分利用冬季农闲和春耕备播时期广泛开展测土配方施肥技术的宣传培训,同时通过进村、入户、上墙和媒体宣传等多种途径和信息化手段,分区分块传递推介施肥技术,引导农民按方施肥。2023年,测土配方施肥技术覆盖率稳定在90%以上。
 
  调优结构减量增效。持续加大科学施肥技术和肥料产品的探索推广力度,通过试验示范验证,不断优化施肥结构和种类。针对马铃薯、玉米、甜菜等水浇地作物重基肥、轻追肥、少中微量肥等施肥问题,采取前氮后移、磷肥分次、钾肥控量、补充中微量肥等措施,开展相关试验52个,一对一制定作物科学施肥技术指导,有效增强了减肥增效技术大面积推广提供技术支撑。按照“有机无机配施、大中微量配合、优化形态配对”的原则,引导农户增施有机肥,选用缓控释肥、大量元素复合肥,推广应用液体肥、微生物肥、叶面肥、中微量元素肥等高效的新型肥料,不断丰富作物施肥肥料种类,努力为农户科学施肥提供技术服务。
 
  科学管控减量增效。持续加大农企合作力度,引入中化集团、乡喜液体肥配肥站等新型骨干农化服务企业,充分利用企业的资金优势、技术优势和先进的仪器设备,结合土肥部门掌握的基础数据和技术优势,初步实现了农作物施肥方案量身定制,不断深入推进精准施肥、科学施肥。中化集团与乡喜液体肥配肥站在我市马铃薯、玉米、甜菜、葵花、洋葱、胡萝卜等作物上推广应用测土配方固体肥和液体肥累计达到40万亩,涉及400多户。
 
  改进方式减量增效。大力引导农户改进传统的表施、撒施、大水冲施等施肥方式,推广高效施肥机械和施肥技术。2022年-2023年,累计推广集成施肥新技术、新产品、新机具等“三新”技术模式28万亩,推广水肥一体化应用面积达330万亩,推广应用大豆根瘤菌剂49万亩,总结提炼并推广应用旱地作物“种肥同播+施用缓释肥料+无人机喷施”高效施肥技术、马铃薯浅埋滴灌水肥一体化技术、膜下滴灌玉米“无底肥”施肥技术、青贮玉米“全膜覆盖+水肥一体化+无人机喷施叶面肥”精准施肥技术、主栽作物有机肥部分替代技术等5种技术模式。
 
  下一步,市农牧(乡村振兴)局将继续实施好化肥减量增效项目,做好大豆根瘤菌剂推广应用、“三新技术”示范区建设、新型肥料遴选荐优助农行动、“无底肥”试验示范区等工作,确保全市测土配方施肥技术覆盖率保持在90%以上,全市化肥使用量持续负增长。建好自治区看苗选肥平台,筛选一批适宜我市主栽作物的新型肥料品种,为农民选肥提供科学依据。持续调优施肥结构,推动化肥使用量稳中有降目标实现。
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