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三秋:保護性耕作技術解救秸稈的“尷尬”處境
2017-09-14
14:21:17
來源:中國農機網 閱讀量:51952
評論
【中國農機網 本站原創】每年的收獲季都會產生大量的農作物秸稈,這些秸稈放在地里會影響下一季的作物生長,燒了又污染環境,各地明令禁止焚燒秸稈,秸稈的地位因此變得很尷尬。如何處理這些秸稈也成了全國各地都在積極探索的問題。
伊通縣“秸稈歸行摟耙”完善保護性耕作技術
玉米保護性耕作技術如今已得到越來越多新型職業農民的認可,正如:伊通縣一位農機推廣站正工程師王立濤通過多年的鉆研和摸索,在2014年發明的《一種秸稈還田裝置》的基礎上成功研制出 “秸稈歸行摟耙”,由20—55馬力
拖拉機懸掛牽引作業,一次完成種苗帶秸稈清理,然后進行免耕播種作業,實現秸稈全部還田,也讓保護性耕作技術更完善,且成本低,見效快,極易被農民接受。
保護性耕作技術讓青島秸稈綜合利用率達90%
2017年,青島秸稈綜合利用率達到了90%,百萬噸的秸稈覆蓋土地,使農田變成了“面包田”,這便是保護性耕作技術。據悉,青島市從2006年開始推廣實施保護性耕作技術,并在全國探索成功,形成了一年兩作技術模式,其技術水平在黃淮海地區處于地位。
目前,青島實施保護性耕作總面積已達到150多萬畝,有效地減少了秸稈焚燒,促進了秸稈的綜合利用。
吉林五年保護性耕作技術讓秸稈變廢為寶
干旱缺墑、黑土流失、秸稈焚燒、大氣污染、地力下降、土壤板結這些困擾吉林省農業生產發展和糧食產量穩步增長多年的瓶頸,制約了吉林農業的可持續發展和現代農業建設以及農民增收致富,已成為吉林農業發展的突出障礙。對此,吉林省農機系統經過十余年的積極探索,現已找到一套破解之法——以玉米秸稈還田覆蓋免耕播種為核心的保護性耕作技術。
什么意思呢?就是從秸稈還田覆蓋免耕、保水、保土入手,通過秸稈覆蓋還田免耕,實現種植玉米的同時培肥地力、疏松土壤、蓄水保墑、消除秸稈焚燒和可持續生態綠色農業發展。這是一條艱難的創新之路,吉林通過從農機大戶、農機合作社入手,開始推廣這項技術,并采取一系列行之有效的措施來鞏固保護性耕作技術的實施。經過五年的砥礪前行,這一技術收獲了可喜的成果。使過去不得不燒掉的秸稈,現在“華麗轉身”變成了還田覆蓋地表、培肥地力的“寶貝”,成了農民難得的有機肥料,保護性耕作技術也受到農民的歡迎。
從以上三地的秸稈處理經驗來看,保護性耕作技術深受農民青睞,眼下三秋大戰即將打響,保護性耕作技術將秸稈變廢為寶,大大緩解了秸稈的尷尬處境。
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