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促进农机农艺结合、推进甘蔗生产机械化:广西发布《糖料蔗生产宽行距机械化种植技术模式指导意见

2019-12-12 14:49:57 来源:农机网整理发布 阅读量:49658 评论

导读:本模式以土地宜机化整治、工厂化加工蔗种、耕整、种植、植保、培土施肥、收获为重点作业环节,满足“双高”基地规模化、集约化和标准化生产的要求,实现生产过程机械化,装备配置科学化,机械作业精准化,可减少能源及投入品的消耗,大幅降低劳动强度和生产成本,达到保护环境,节本增效增收的目的。

  【农机网 科技创新】 近日,广西壮族自治区农业机械化服务中心发布《广西糖料蔗生产宽行距机械化种植技术模式指导意见》(以下简称《指导意见》)。《指导意见》表示,近年来,随着现代农业机械发展,起来越多的机械设备应用于甘蔗生产,广西各蔗区结合当地实际情况,发展出了一批适应当地土地情况、民风民情、经济发展水平的糖料蔗机械化种植模式,南宁市武鸣区、隆安县等地依托当地的蔗种预处理配送中心(蔗种工厂),通过研发、应用适宜的预切种式甘蔗种植机,在当地采用一种种植行距≥2.3m的宽行距的机械化种植技术。
 
  本模式以土地宜机化整治、工厂化加工蔗种、耕整、种植、植保、培土施肥、收获为重点作业环节,满足“双高”基地规模化、集约化和标准化生产的要求,实现生产过程机械化,装备配置科学化,机械作业精准化,可减少能源及投入品的消耗,大幅降低劳动强度和生产成本,达到保护环境,节本增效增收的目的。
 
  《指导意见》表示,此技术模式应用条件为蔗区有意愿、接受程度高的农民,同时地块连片200亩以上,坡度10°以下。有糖料蔗种植经验、机械化作业能力较好的社会能人为试验示范建设主体,该主体应当熟练掌握农机农艺与信息化深度融合的耕种管收机械化技术。
 
  此模式主要配备土地整治机械、捡石移石埋石碎石机具、平地整地机具、土壤改良机具、深松机、重力耙、蔗种肥料装载机、200马力以上大型拖拉机及其配套卫星导航自动驾驶系统、50~165马力拖拉机、深松开沟机一体机、预切式联合种植机、除草机、喷杆式喷雾机、施肥覆土机、切段式高性能联合收获机、转运车、运输甩挂车、运输拖车、破垄施肥机等。
 
  以下为技术路线和技术要点:
 
  (一)技术路线
 
  新植:机械化耕整地或机械化灭茬→机械深松→深松开行→预切种联合种植机(0.3~0.4+≥2)m行距种植→机械除草→机械中耕施肥培土→机械统防统治→高效机收→蔗叶粉碎还田
 
  宿根:机械化平茬破垄施肥→机械除草→机械中耕施肥培土→机械统防统治→高效机收
 
  (二)技术要点
 
  1.蔗地宜机化整治(该技术应用于新开发或需要改造宜机化建设的用地)。
 
  (1)降坡填沟,小块并大块。使用挖掘机、推土机等机具降坡填沟,清理沟坎,坡度平整在7°以下;地块小并大,短并长、弯变直。
 
  (2)捡石埋石,清除障碍物。使用捡石机、碎石机捡集蔗地中石头和击碎暗石并就地深度填埋,清理60cm耕层范围内的石块、树根等障碍物,移除蔗地的水泥墩柱、电杆等影响农业机械作业的障碍物。
 
  (3)平地。用大马力(165马力以上)拖拉机配套平地机对蔗地进行平整,按坡度、地势顺势平整,消除凹凸、波浪、起伏等影响机械作业的耕作面,作业后地块平整度≤3cm,平整度合格率≥80%。
 
  (4)建设田间道路。建设田间主干道和工作道路。田间主干道宽度应在4~6m,工作道路宽度为3~4m,田间道路应低(20cm)或平于蔗田,道路平整,碾压结实,便于大型机具下地、转弯掉头和物料装卸作业。
 
  (5)水利设施。理建设给排水设施,输水干管、配水管网工程及喷头、滴灌带、滴灌管、微灌带,水沟、水渠等田间水利设施方便全程机械化作业。
 
  (6)机械土壤改良(自选)。采用165马力以上大型拖拉机配套抛肥机喷洒改土物料,改善土壤生产性状和环境条件。
 
  2.机械灭茬碎土(该技术用于已经宜机化整治的蔗地)。
 
  采用200马力以上大型拖拉机配套3m以上宽幅重力耙或100马力拖拉机配套旋耕机,对蔗地地表的杂草、前茬作物切碎,破碎率80%以上,同时耙碎地表,深度8~15cm。
 
  3.深松整地
 
  (1)深松。用200马力以上拖拉机配套宽幅1.4m以上、3~5齿深松犁进行甘蔗种植行内深松作业,深松深度45~60cm,穿透犁底层,同时配套北斗卫星定位导航技术固定轨道作业、深松检测仪监测深松深度,做到“地上一条线,地下一大片”。
 
  (2)深松开行。深松后再用160马力以上拖拉机配套深松开沟一体机采用卫星导航自动驾驶技术按深松固定的轨道进行深松和开行,开行深度20~25cm,行底宽30~40cm。
 
  4.标准化机械种植
 
  (1)品种选择。选用高产、高糖、抗逆性、宿根性好,分蘖力强、成茎率高、茎蘖长势整齐,直立抗倒、易脱叶的适宜机械化栽培品种。如桂糖44号、桂糖55号、桂糖49号、桂糖1215、桂糖08-1589等品种(品系)。
 
  (2)种茎准备。选择经标准化、专业化生产的具有杀菌、杀虫、促根、促分蘖作用的包衣脱毒健康单芽或双芽种茎,种茎新鲜、蔗芽饱满健壮、无病虫害、品种纯正,单芽种茎长3.0~4.5cm,双芽种茎长15~25 cm。
 
  (3)联合种植。采用120马力以上拖拉机悬挂预切式联合种植机在预开行的垄沟粉沟、施肥、播种(定量、等距离)、覆土盖膜等联合作业。
 
  种植行距:釆用“宽行190~200cm+窄行30cm~40cm”或“200cm等行距密植”的宽窄行种植,为使用大中型拖拉机田间管理和大型甘蔗联合收割机收割奠定基础。
 
  种植密度:每亩下种量1800~2400个蔗芽,冬植蔗宜用双芽种,春植蔗及秋植蔗宜用单芽种,单芽种段距20~22cm,双芽种段距25~35cm,株距均匀深浅一致。
 
  种植深度:采用深种浅培土的种植方式,深度20~25cm。
 
  覆土:覆土厚度5~8cm,露芽率≤6%,逢雨季浅覆土,旱、寒期种植可略厚覆土。
 
  盖膜:用厚度0.01mm、宽度70~80cm无色透明覆盖播幅,土壤含水率70%以上,膜边盖土密实,合格率≥95%。
 
  喷除草剂:种植后一周内,使用50~160马力拖拉机悬挂喷杆式喷雾机喷施除草剂一次性封闭灭草。
 
  5.田间管理
 
  田间管理配套的拖拉机等动力机械需沿种植时行间固定轨道行走。
 
  (1)行间除草。当蔗地杂草长至10cm左右时,用50~70马力拖拉机悬挂旋耕除草机进行粉碎除草、松土,甘蔗整个生育期全程机械化除草,不用化学除草剂。
 
  (2)小培土。在甘蔗分蘖初期进行中耕作业,以改善耕层、增肥促蘖成茎。采用50~100匹马力拖拉机悬挂宽行施肥培土机进行中耕施肥培土,施肥距离蔗蔸10cm,培土高度10-15cm,使行沟土与地面基本持平或略低,按农艺要求施放肥料。
 
  (3)大培土。甘蔗拔节初期用50~100马力拖拉机悬挂犁铲式培土机(选用宽行培土机)进行大培土,松土深度7~10cm,培土高度15~25cm,甘蔗损伤率≤5%,肥药覆盖率≥85%,合格率>90%。尽量填实蔗丛基部形成龟背型,避免出现U形蔗垄和蔗丛中部空陷,按农艺要求施放肥料,施肥量量占总施肥量的60%,加防虫助剂125 g/亩。
 
  (4)机械植保。根据病虫测报,对症下药,控制病虫害发生。提倡高效、低毒和精准施药,减少污染。使用50~100马力拖拉机悬挂喷杆式喷雾机或无人机进行喷药防控。
 
  (5)水分管理。根据水源和地形等不同条件,提倡使用喷灌(含移动式喷灌和微喷)、滴灌等先进的节水灌溉技术设施,确保甘蔗各生长期的水分供应。没有灌溉条件的蔗区可采用封沟贮水和用蔗叶覆盖地面等方法防旱。
 
  6.机械化收获
 
  (1)选用切段式高性能联合收获机迪尔CH530或凯斯A8000配套田间转运车对蔗地进行高效机收和转运,收割机和田间转运车动力设备安装有定位导航系统按固定轨道行走,防止碾压蔗蔸。
 
  (2)要求留茬高度≤2cm,切割合格率≥95%,宿根破头率≤10%,含杂率≤10%,总损失率≤5%。
 
  (3)抢好天气机收。合理调度运蔗车或采用移动转运站、甩挂拖车等高效转运方式,确保不因等车而造成收获机停止工作,又不因车辆过多影响运蔗车周转率。
 
  7.宿根蔗管理
 
  甘蔗收割后,用140马力以上拖拉机悬挂平茬破垄施肥盖膜一体机按固定轨道进行平茬、破垄松蔸、施药肥和盖膜,施肥、药量与新植蔗相同,后期的除草、培土、施肥、植保和收割等环节与新植蔗相同,但管理时间应比新植蔗提早15~20天。破垄深度15~25cm,甘蔗损伤率≤5%。
 
  六、主要优势
 
  (一)节约用种量,节本增效显著。采用统一的包衣双芽或单芽种茎,每亩下种量1800~2400芽,重量折合约50~100kg,比常规种植亩下种量7000~9000芽(600~1100kg),节约65%的用种量,节约蔗种费700-500=200元,同时带动减药减肥等生产成本。采用2.3m以上宽行种植,每亩作业距离只有290m左右,比常规1.2m每亩作业距离550m,减少了284m,工作效率比常规生产提高约50%。
 
  (二)保护环境效益好。推广应用宽行种植,蔗地随时使用机械除草、施肥和培土,零使用除草剂,有效降低对农业生产环境的污染,保护耕作环境。
 
  本文由农机网整理发布,资料来源:广西壮族自治区农业机械化服务中心,如有侵权或异议请联系我们。
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