【今日大寒】歲末大寒至 萬物待春歸

2025-01-20 14:45:42 來源：農(nóng)機網(wǎng)整理發(fā)布 閱讀量：26582 評論

　　【農(nóng)機網(wǎng) 熱點關(guān)注】 大寒，是二十四節(jié)氣中的最后一個節(jié)氣。大寒節(jié)氣處在三九、四九時段，此時寒潮南下頻繁，是一年中的最寒冷時節(jié)。在大寒時節(jié)，中國大部分地區(qū)都處于寒冷的氣候條件下，這對農(nóng)業(yè)生產(chǎn)有著重要影響。
 
　　大寒節(jié)氣里，各地農(nóng)活很少。北方地區(qū)老百姓多忙于積肥堆肥，為開春作準備；或者加強牲畜的防寒防凍。南方地區(qū)則仍加強小麥及其他作物的田間管理。
 
　　小麥管理
 
　　查看小麥越冬生長情況，結(jié)合天氣情況加強田間管理。一二類苗可適度進行鎮(zhèn)壓，保墑增溫；土壤較干要適當澆水保墑，堅持冷尾暖頭、夜凍晝消的原則。弱苗則不宜灌溉、鎮(zhèn)壓，確保冬小麥安全越冬。
 
　　其他糧油作物根據(jù)作物生長情況和天氣條件，適當施肥，增強作物抗凍、抗病抗逆能力，及時采取施肥、澆水、除草等管理措施。
 
　　蔬菜管理
 
　　及時移栽，加強管理。在下旬定植中小拱棚甘藍，番茄，定植前應(yīng)提前5-7天扣棚升溫，選晴天上午定植，并加蓋草苫保溫促進緩苗。對基肥不足的大棚可在大寒后，在作物的大溝內(nèi)追施雞糞，翻入土壤中并及時澆水，可提高后期產(chǎn)量。繼續(xù)做好病害防治。加強對灰霉病、葉霉病、疫病、霜霉病、白粉病等的防治。
 
　　果樹管理-柑桔
 
　　防凍：一月是全年最冷的月份，極端低溫在-5℃以下時，很多柑桔品種就會受凍害。做好抗寒防凍和抗雪害工作，確保安全過冬，是柑桔的重點工作；
 
　　在春梢萌動前完成清園；
 
　　修剪：連年豐產(chǎn)和衰弱樹的修剪以恢復(fù)樹勢為目的，在春梢萌動時，剪去弱枝、病蟲枝和枯枝，短截已結(jié)果的枝條。間疏叢狀“掃把”枝，內(nèi)膛衰弱枝“留樁”(2-3寸帶2-3個芽的枝條)短截；
 
　　噴藥消滅越冬病害蟲，施重肥，利用果園間種綠肥，開穴深施，同時樹盤松土、培土。
 
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