前后灌满丰满麻麻大屁股,善良的公与媳hd中文,三上悠亚ssni绝顶を教え込ま
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地點(diǎn)： 呼和浩特市
開(kāi)展時(shí)間： 2025-03-26
舉辦單位： 內(nèi)蒙古農(nóng)牧業(yè)機(jī)械行業(yè)協(xié)會(huì)、內(nèi)蒙古自治區(qū)經(jīng)濟(jì)發(fā)展與研究促進(jìn)會(huì)
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地點(diǎn)： 合肥市
開(kāi)展時(shí)間： 2025-03-27
舉辦單位： 上海市貿(mào)促會(huì)、安徽省貿(mào)促會(huì)
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地點(diǎn)： 無(wú)錫市
開(kāi)展時(shí)間： 2025-03-29
舉辦單位： 中國(guó)機(jī)電產(chǎn)品流通協(xié)會(huì)、無(wú)錫市機(jī)床工具行業(yè)協(xié)會(huì)、無(wú)錫市工業(yè)和信息化局
全國(guó)農(nóng)技中心組織3月油菜生產(chǎn)技術(shù)會(huì)商
2024-04-05
08:59:36
來(lái)源：全國(guó)農(nóng)技推廣中心 閱讀量：18607
評(píng)論
【農(nóng)機(jī)網(wǎng) 熱點(diǎn)關(guān)注】 近日，全國(guó)農(nóng)技中心組織12個(gè)油菜主產(chǎn)省農(nóng)技推廣部門技術(shù)骨干和區(qū)域?qū)＜议_(kāi)展技術(shù)會(huì)商，交流油菜田間長(zhǎng)勢(shì)，分析有利條件和不利因素，研究油菜后期促結(jié)實(shí)、增粒重、防災(zāi)害田間管理重點(diǎn)技術(shù)措施。
3月以來(lái)，長(zhǎng)江流域油菜主產(chǎn)區(qū)光溫充足，總體有利于油菜生長(zhǎng)發(fā)育。上游地區(qū)已全面進(jìn)入角果期，生育進(jìn)程與往年同期相當(dāng)，中下游地區(qū)受前期多輪低溫天氣影響，生育進(jìn)程較常年推遲5—7天，正陸續(xù)進(jìn)入角果期。從有利條件看，大部分主產(chǎn)區(qū)氣溫回升速度快(較往年偏高2—4℃)，加上防災(zāi)措施及時(shí)(“一促四防”技術(shù)覆蓋率超7成)，受凍萎蔫植株復(fù)挺生長(zhǎng)速度好于預(yù)期，田間長(zhǎng)勢(shì)與去年基本相當(dāng)，較常年略有不足。從不利因素看，田間濕度較大，湖北大部、湖南北部、江西和安徽南部10厘米土壤墑情處于過(guò)濕狀態(tài)，預(yù)計(jì)4月上旬長(zhǎng)江中下游仍有大范圍持續(xù)降雨過(guò)程，極易導(dǎo)致田間積水，出現(xiàn)植株早衰。
會(huì)商提出，未來(lái)一個(gè)月是油菜結(jié)實(shí)灌漿的關(guān)鍵時(shí)期，各地要聚焦促結(jié)實(shí)、增粒重、補(bǔ)損失開(kāi)展田間管理。一方面，長(zhǎng)江中下游要持續(xù)做好排漬，特別是清理田間圍溝，保持土壤墑情適宜，提高根系活力，防早衰、防次生災(zāi)害。另一方面，要廣泛開(kāi)展第2輪“一促四防”，鞏固菌核病防控效果，并適當(dāng)增施角果肥，建議噴施磷酸二氫鉀和硫酸鎂混合液促進(jìn)灌漿結(jié)實(shí)，增加粒重，確保夏收油菜豐產(chǎn)。
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