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從94%的小麥機收率看我國農業機械發展歷程
2018-06-01
08:44:54
來源:中國農機網原創 作者:林言 閱讀量:51693
評論
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中國農機網 編輯視角】每年5月至6月是全國小麥的收割季節。據農業農村部統計,截至5月28日,全國已收獲小麥3260萬畝,日機收面積超過400萬畝,全國“三夏”大規模小麥跨區機收大會戰已全面啟動。據了解,今年全國將有63萬臺
聯合收割機投入小麥收割,全國冬小麥機收率將超過94%。
回首過去,短短二三十年間我國農業機械化面貌發生了翻天覆地的變化。以小麥收割為例,從人工收割到小機械收割再到現在的大型聯合
收割機,這是時代的記憶也是我國農業農村發展的見證。
自古以來的人力收割
小麥自古以來就是我國重要的糧食作物之一,然而千百年來,小麥收割都是靠人力。“田家少閑月,五月人倍忙。夜來南風起,小麥覆隴黃。婦姑荷簞食,童稚攜壺漿,相隨餉田去,丁壯在南岡。足蒸暑土氣,背灼炎天光,力盡不知熱,但惜夏日長。”唐代白居易的《觀刈麥》充分表達了麥收時節人力收割小麥的艱辛。在從前的歲月里,糧食豐收帶來的不僅是喜悅更多的卻是勞累。早上天不亮就要拿著鐮刀下地,白天頂著火爐似的太陽也不敢停歇,彎腰弓背一整天,大片大片未割的麥子卻還鋪的滿眼都是。等到割完了,撿麥穗、打麥子又成了另一道累人的工序。麥收時節,農民們在豐收的歡愉與身心的疲憊之間體味著兩重世界,而這一生產模式,一下子就延續了數千年。
改革開放后的逐步發展
到了上世紀90年代,國內部分農村地區已經開始使用小麥收割機,逐漸改變了“面朝黃土背朝天,手握鐮刀把腰彎”的狀況,但小麥收割后脫粒還得用專門的打麥機,那時候收割、脫粒、曬干全都是分時段進行的,一場麥收下來要耗時一個月左右。
1996年,國家有關部委開始組織大規模小麥跨區機收服務,機收范圍從初的山西、河南、河北三個省份迅速擴大到21個省、自治區和直轄市。2004年頒布實施了《農業機械化促進法》,國家明確提出加快推進農業機械化的要求和措施,購機補貼政策對農業機械化發展和農機工業發展起到了明顯的拉動作用,國內農機裝備總量持續快速增長、裝備結構不斷優化,向技術含量高、綜合性能強的大型化方向發展。對農民來說機收小麥大大降低了勞動強度、提高了效率,解放了農村勞動力,同時也促進了土地集約化和農村合作社的發展與成熟。
農業全面機械化
目前,聯合收割機已是大田作業不可缺少的農業機械。據統計,聯合收割機收割小麥,比一般人工收割減少脫粒損失5~8%,一臺大型
谷物聯合收割機一天可收割小麥400~500畝。
現代聯合收割機一個工作日可以收割12萬平方米以上的谷物。
除此之外,如今的聯合收割機能一次完成谷類作物的收割、脫粒、分離莖桿、清除雜余物等工序,從田間直接獲取谷粒,加上近年谷物烘干機的大量使用,避免了以前小麥收獲后曬干時對天氣的極度依賴性。全程機械化使成熟的小麥從田地到直接收入倉庫時間不超過一星期,大大提高了生產效率、節約了勞動成本。
隨著農業全程、全面機械化水平的進一步提高,精量播種、化肥深施、植保、秸稈還田、深松整地等農機化新技術應用面積不斷擴大,農機標準化作業程度進一步提高。集收獲、耕整、播種于一體的機械化復式作業應用范圍也在逐步擴大,農業搶收搶種能力和農業綜合生產能力在進一步增強。農業機械化不僅讓農民告別了延續千年的“面朝黃土背朝天”的艱苦狀態、讓農民過上了好日子,更是我國從農業大國走向農業強國的根基。
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