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南通海安市完成水稻“噴插同步”試驗示范

2023-02-03 09:11:55 來源： 江蘇省海安市農(nóng)機推廣站 閱讀量：20395 評論

導(dǎo)讀：本次選用試驗產(chǎn)品：插秧機同步噴霧施藥機3W-100，供試藥劑為芐嘧磺?。ǚ鈿㈤熑~草、莎草等）加墾收（主要封殺稗草）。

　　【農(nóng)機網(wǎng) 地方農(nóng)機】為了解決傳統(tǒng)水稻種植過程中除草難、成本高、機械化程度低等問題，江蘇省南通海安市農(nóng)機推廣部門在開發(fā)區(qū)和李堡鎮(zhèn)開展了水稻封殺除草劑“芐嘧磺隆十墾收”的“噴插同步”試驗示范，對比常規(guī)除草的除草效果、對秧苗產(chǎn)生的副作用及實際產(chǎn)量等，以評價該技術(shù)的經(jīng)濟性、實用性。
 
　　本次選用試驗產(chǎn)品：插秧機同步噴霧施藥機3W-100，供試藥劑為芐嘧磺隆(封殺闊葉草、莎草等)加墾收(主要封殺稗草)。土壤類型：夾沙土種植品種：南梗58。兩種作業(yè)模式的試驗比對，除施用除草劑外，其他如整地灌水、施肥、使用殺蟲劑、殺菌劑、生化劑等完全一致，栽插時利用同一臺插秧機，同等質(zhì)量秧苗，同樣的操作標(biāo)準(zhǔn)，同一天栽插結(jié)束。噴插同步試驗在插秧機上加裝噴藥裝置，用藥濃度及用藥量，按植保部門的指導(dǎo)意見。水稻栽插后分別于15天、30天、45天田間考查除草效果，水稻成熟時分別測產(chǎn)。
 
　　通過對比水稻封殺除草劑施用噴插同步與插后7天用藥兩種作業(yè)模式下的除草效果，水稻栽插后15天噴插同步明顯好于常規(guī)的插后7天用藥的除草效果，隨著時間的推移，30天、45天后，噴插同步與栽插后7天用藥除草效果差異逐漸縮小，到45天后，幾乎相似。從水稻的理論產(chǎn)量來看，水稻實施封殺除草劑噴插同步，與常規(guī)施用對水稻產(chǎn)量影響差異不大。
 
　　本試驗發(fā)現(xiàn)，水稻封殺除草劑實施噴插同步，對秧苗醒棵和快速發(fā)根有一定影響，秧苗的緩苗期延長，拔節(jié)推遲，大約使水稻拔節(jié)期推遲0.8個葉齡，約5天左右。實施噴插同步與常規(guī)的藥肥混施總體上產(chǎn)量相當(dāng)，用工成本相當(dāng)，但封殺效果噴插同步明顯好于藥肥混施，所以噴插同步具有較好的推廣實用價值。

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