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南通海安市完成水稻“噴插同步”試驗(yàn)示范

2023-02-03 09:11:55 來(lái)源： 江蘇省海安市農(nóng)機(jī)推廣站 閱讀量：20394 評(píng)論

導(dǎo)讀：本次選用試驗(yàn)產(chǎn)品：插秧機(jī)同步噴霧施藥機(jī)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）。

　　【農(nóng)機(jī)網(wǎng) 地方農(nóng)機(jī)】為了解決傳統(tǒng)水稻種植過(guò)程中除草難、成本高、機(jī)械化程度低等問(wèn)題，江蘇省南通海安市農(nóng)機(jī)推廣部門(mén)在開(kāi)發(fā)區(qū)和李堡鎮(zhèn)開(kāi)展了水稻封殺除草劑“芐嘧磺隆十墾收”的“噴插同步”試驗(yàn)示范，對(duì)比常規(guī)除草的除草效果、對(duì)秧苗產(chǎn)生的副作用及實(shí)際產(chǎn)量等，以評(píng)價(jià)該技術(shù)的經(jīng)濟(jì)性、實(shí)用性。
 
　　本次選用試驗(yàn)產(chǎn)品：插秧機(jī)同步噴霧施藥機(jī)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(yàn)比對(duì)，除施用除草劑外，其他如整地灌水、施肥、使用殺蟲(chóng)劑、殺菌劑、生化劑等完全一致，栽插時(shí)利用同一臺(tái)插秧機(jī)，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(yàn)在插秧機(jī)上加裝噴藥裝置，用藥濃度及用藥量，按植保部門(mén)的指導(dǎo)意見(jiàn)。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(shí)分別測(cè)產(chǎn)。
 
　　通過(guò)對(duì)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(shí)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(lái)看，水稻實(shí)施封殺除草劑噴插同步，與常規(guī)施用對(duì)水稻產(chǎn)量影響差異不大。
 
　　本試驗(yàn)發(fā)現(xiàn)，水稻封殺除草劑實(shí)施噴插同步，對(duì)秧苗醒棵和快速發(fā)根有一定影響，秧苗的緩苗期延長(zhǎng)，拔節(jié)推遲，大約使水稻拔節(jié)期推遲0.8個(gè)葉齡，約5天左右。實(shí)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(shí)用價(jià)值。

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