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2024年全國秋糧“一噴多促”技術(shù)意見

2024-08-06 10:03:13 來源：全國農(nóng)業(yè)技術(shù)推廣服務中心 閱讀量：12671 評論

導讀：當前，主產(chǎn)區(qū)玉米陸續(xù)進入開花乳熟期，中稻處于孕穗抽穗期，大豆即將進入開花結(jié)莢期，是產(chǎn)量形成關(guān)鍵期，也是“一噴多促”窗口期。

　　【農(nóng)機網(wǎng) 熱點關(guān)注】當前，主產(chǎn)區(qū)玉米陸續(xù)進入開花乳熟期，中稻處于孕穗抽穗期，大豆即將進入開花結(jié)莢期，是產(chǎn)量形成關(guān)鍵期，也是“一噴多促”窗口期，但奪取秋糧豐收還面臨洪澇、高溫、干旱、冷害和病蟲等災害威脅。在秋糧生育中后期，將葉面肥、調(diào)節(jié)劑、抗逆劑、殺蟲殺菌劑等混合噴施，一次作業(yè)可以實現(xiàn)促生長發(fā)育、促灌漿成熟、促災后恢復、促產(chǎn)量提高等多重效應，是秋糧中后期有災防災、無災增產(chǎn)的關(guān)鍵措施。堅持“分類施策、優(yōu)選肥藥、精準噴施、確保安全”的原則，推進實施“一噴多促”，全力夯實秋糧豐產(chǎn)豐收基礎。
 
　　（一）因地制宜，分類施策。東北地區(qū)春玉米處于開花乳熟期、春大豆處于開花結(jié)莢期，中稻處于孕穗抽穗期，要重點關(guān)注漬澇、低溫冷害、早霜等災害威脅，以及玉米螟、雙斑長跗螢葉甲、大斑病，大豆菌核病、食心蟲，水稻稻瘟病、紋枯病、鞘腐病、稻曲病、二化螟、稻蝽象甲等病蟲害。黃淮海地區(qū)夏玉米即將進入抽雄開花期、夏大豆進入開花結(jié)莢期，要重點關(guān)注北部漬澇和南部高溫，以及玉米南方銹病、褐斑病、玉米螟、草地貪夜蛾、甜菜夜蛾、棉鈴蟲，大豆霜霉病、豆莢螟等病蟲害。長江中下游地區(qū)中稻處于孕穗抽穗期，要重點關(guān)注高溫、干旱、洪澇、寒露風等自然災害，以及紋枯病、稻曲病、稻瘟病、二化螟、稻縱卷葉螟、稻飛虱等病蟲害。西北地區(qū)春玉米多處于抽雄開花期、春大豆處于結(jié)莢鼓粒期、夏大豆處于開花結(jié)莢期，要重點關(guān)注干旱和早霜，以及雙斑長跗螢葉甲、葉螨，大豆食心蟲、豆莢螟、霜霉病等病蟲害。要根據(jù)各地玉米大豆生育進程、病蟲害和自然災害，因地因苗因時因災綜合實施“一噴多促”。
 
　　（二）優(yōu)選肥藥，科學搭配。應對自然災害，高溫干旱地區(qū)可噴施磷酸二氫鉀、中微量元素水溶肥和抗旱抗逆制劑，漬澇地塊及時排水后可葉面噴施尿素和磷酸二氫鉀，早霜威脅大的地區(qū)可噴施磷鉀肥或液體膜。玉米生長調(diào)節(jié)劑可選用三十烷醇、噻苯隆、蕓苔素內(nèi)酯、吲哚丁酸等，大豆生長調(diào)節(jié)劑主要選擇三十烷醇、蕓苔素內(nèi)酯、吲哚丁酸等。大豆生長調(diào)節(jié)劑主要選擇蕓苔素內(nèi)酯、噻苯隆、赤·吲乙·蕓苔、14-羥蕓·噻苯隆、調(diào)環(huán)酸鈣等。應對病蟲害，玉米殺菌劑可選用吡唑醚菌酯、苯醚甲環(huán)唑、吡唑醚菌酯·戊唑醇、醚菌酯·氟環(huán)唑等，殺蟲劑可選用氯蟲苯甲酰胺、甲氨基阿維菌素苯甲酸鹽、溴氰菊酯、高效氯氟氰菊酯等；大豆殺菌劑可選用吡唑醚菌酯、嘧菌酯、吡唑醚菌酯·氟環(huán)唑、苯甲·丙環(huán)唑等，殺蟲劑主要選擇氯蟲苯甲酰胺、溴氰菊酯、高效氯氟氰菊酯、甲維·毒死蜱等。水稻殺菌劑可選用三環(huán)唑、吡唑醚菌酯微囊懸浮劑、噻呋酰胺、嘧菌酯、肟菌·戊唑醇等，殺蟲劑主要選擇三氟苯嘧啶、四氯蟲酰胺、茚蟲威、乙基多殺菌素等。
 
　　（三）適時噴施，精準用量。時間上，作業(yè)時風力應在三級以內(nèi)、溫度不超過30℃，一般選擇在無雨天的上午9時前、下午4時后進行，避開正午高溫時段；如噴后24小時內(nèi)遇中到大雨，要及時補噴；可因地制宜選擇無人機夜間作業(yè)。用量上，采用無人機作業(yè)時，每畝噴液量1.5升以上，并在藥液中添加適量的噴霧助劑，提高霧滴沉降、抗飄移、抗蒸發(fā)等性能。采用高地隙噴桿噴霧機、車載式擔架機進行噴霧作業(yè)時，畝噴液量要達到30升以上。
 
　　（四）統(tǒng)一作業(yè)，確保安全。作業(yè)前依照有關(guān)法規(guī)提前公告，作業(yè)時設立警示牌防止人畜中毒和傷亡事故發(fā)生。優(yōu)先選擇無人機統(tǒng)一噴防作業(yè)，飛行速度控制在3—5米/秒，飛行高度要根據(jù)無人機載重量進行調(diào)整，載重30升以下無人機飛行高度距作物冠層2—3米，載重30升以上無人機飛行高度距作物冠層3.5—4.5米，防止作業(yè)時吹斷莖稈；無人機起降作業(yè)時，應遠離障礙物和人員，作業(yè)人員應穿戴必要的防護用品，避開噴霧下風位，嚴禁在施藥區(qū)穿行，作業(yè)時禁止吸煙及飲食。對不適用于無人機作業(yè)的田塊，可因地制宜采用高地隙噴桿噴霧機、車載式擔架機等進行噴霧作業(yè)。噴施作業(yè)前，綜合評估潛在風險，防止噴霧霧滴飄移造成非靶標生物毒害和周邊作物藥害。大規(guī)模施藥前須開展小范圍試驗。

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