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地點(diǎn)： 重慶市
開(kāi)展時(shí)間： 2024-10-23
舉辦單位： 重慶市機(jī)械工程學(xué)會(huì)、重慶市電子學(xué)會(huì)、重慶市自動(dòng)化儀器儀表學(xué)會(huì)
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地點(diǎn)： 長(zhǎng)沙市
開(kāi)展時(shí)間： 2024-10-26
舉辦單位： 中國(guó)農(nóng)業(yè)機(jī)械流通協(xié)會(huì)、中國(guó)農(nóng)業(yè)機(jī)械化協(xié)會(huì)、中國(guó)農(nóng)業(yè)機(jī)械工業(yè)協(xié)會(huì)
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地點(diǎn)： 長(zhǎng)春市
開(kāi)展時(shí)間： 2024-10-28
舉辦單位： 中國(guó)長(zhǎng)城綠化促進(jìn)會(huì)、智奧會(huì)展(哈爾濱)有限公司
湖北省早稻、再生稻直播生產(chǎn)技術(shù)指導(dǎo)意見(jiàn)
2022-04-01
09:48:19
來(lái)源：湖北省農(nóng)業(yè)農(nóng)村廳 閱讀量：16245
評(píng)論
導(dǎo)讀：根據(jù)湖北省氣候條件和水稻生產(chǎn)特點(diǎn)，可因地制宜、科學(xué)有序開(kāi)展直播生產(chǎn)，確保完成年度生產(chǎn)目標(biāo)任務(wù)?，F(xiàn)對(duì)早稻、再生稻直播生產(chǎn)提出以下技術(shù)指導(dǎo)意見(jiàn)。
【農(nóng)機(jī)網(wǎng) 地方農(nóng)機(jī)】當(dāng)前正值我省早稻、再生稻播種育秧關(guān)鍵時(shí)期，受3月中旬強(qiáng)對(duì)流天氣和階段性低溫陰雨天氣影響，全省早稻、再生稻播種育秧進(jìn)度較往年同期偏慢1-2成。根據(jù)我省氣候條件和水稻生產(chǎn)特點(diǎn)，可因地制宜、科學(xué)有序開(kāi)展直播生產(chǎn)，確保完成年度生產(chǎn)目標(biāo)任務(wù)。現(xiàn)對(duì)早稻、再生稻直播生產(chǎn)提出以下技術(shù)指導(dǎo)意見(jiàn)。
(一)緊盯農(nóng)時(shí)，以直代插。我省早稻、再生稻適宜播期為3月中下旬至4月上旬。因農(nóng)時(shí)緊張不能適期播種的早稻、再生稻，可以采用短生育期品種進(jìn)行直播生產(chǎn)，播期應(yīng)該控制在4月10日前后為宜。一般要日平均氣溫穩(wěn)定通過(guò)12℃以上，抓住“冷尾暖頭”搶晴播種。
(二)精選良種，精細(xì)整地。選擇分蘗能力強(qiáng)、耐肥抗倒、生育期適中的早中熟高產(chǎn)優(yōu)質(zhì)品種，早稻可采用生育期105天左右品種，再生稻可選用生育期120天左右品種。雜交稻畝播2-3公斤；常規(guī)稻可適當(dāng)加大播量，根據(jù)種子質(zhì)量，早稻畝播8-10公斤，再生稻畝播5-6公斤，力爭(zhēng)以多穗保證產(chǎn)量。整地要做到“早、淺、平、實(shí)”，“早”是指及時(shí)翻耕，“淺”是指翻耕作業(yè)不宜過(guò)深，“平”是指全田高低落差不宜超過(guò)3厘米，“實(shí)”是指畦面不宜過(guò)軟、泥頭不宜過(guò)爛，努力實(shí)現(xiàn)一播全苗。
(三)科學(xué)直播，確保質(zhì)量。因地制宜、因時(shí)制宜選擇不同機(jī)械開(kāi)展直播生產(chǎn)，盡量避免使用人工無(wú)序撒播。機(jī)播前根據(jù)實(shí)際情況調(diào)整播量，密切注意排種情況，盡量勻速播種，防止重播漏播。拋灑型水稻直播無(wú)人機(jī)飛行高度3-4米，作業(yè)幅寬不低于4米；條播型水稻直播無(wú)人機(jī)播種行距20-30厘米，飛行高度30-40厘米，種子掉落行內(nèi)最大幅寬不超過(guò)8厘米。播后1-3天封閉除草，降低雜草基數(shù)，后期根據(jù)雜草發(fā)生情況適時(shí)進(jìn)行補(bǔ)殺。
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