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揚州今年小麥油菜返青期苗情及田管技術意見發布

2023-02-27 09:37:32 來源：江蘇省揚州市農業農村局 閱讀量：14934 評論

　　【農機網 熱點關注】2月21日，江蘇省揚州市發布今年小麥油菜返青期苗情及田管技術意見。針對當前苗情特點和生產實際中存在的突出問題，揚州市農業技術服務中心技術專家要求各地堅持“分類指導、穩穗爭粒”的技術途徑，重點抓好“促弱轉壯，及時化除，清溝理墑”等田管措施。
 
　　當前，揚州市各地田間“雨水”已至，農時不等人，隨著氣溫回升，揚州市小麥從南到北將逐步進入返青期，生長速度逐步加快，小麥生產也進入了春季田管的關鍵階段。
 
　　據介紹，去年揚州市秋播質量較好，一播全苗，奠定了壯苗基礎，但由于播期跨度大，晚播比例較大，封閉化除面積小，越冬以來寒潮頻發，降雨時間分布不均等因素影響，當前小麥苗情不平衡性的問題仍較突出，同時還存在“倒春寒”凍害、草害、漬害等隱患。根據近期苗情調查表明，全市小麥平均葉齡5.6葉，比上年同期少0.3葉，畝均單株帶蘗1.4個，畝均總莖蘗57.0萬，比上年同期多4.6萬，一、二類苗總面積近215萬畝，占比80.0%，苗情總體好于常年，但略差于上年。全市油菜冬季受凍害嚴重，移栽油菜平均葉齡19.1葉，直播油菜平均葉齡15.0葉，苗情均差于上年。
 
　　揚州市農業技術服務中心技術人員針對當前實際情況提出返青期田管要求：首先，一二類苗等正常田塊不施用返青肥，重點做好促弱苗，控旺苗；其次，要在冷尾暖頭，小麥拔節前根據田間草相及時開展化除防草害；最后，要堅持清溝理墑，疏通內外溝系，保證排水暢通，預防漬害。
 
　　“各地要積極組織技術人員踏田查苗，加強分類指導，切實抓好春季田管各項措施落實，努力夯實夏糧豐收基礎，保障糧食生產穩定。”揚州市農業技術服務中心書記劉紹貴說。

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