今日要聞

2024年南方早稻生產(chǎn)技術(shù)意見

2024-03-29 08:33:41 來源:全國農(nóng)業(yè)技術(shù)推廣服務(wù)中心 閱讀量:17371 評論

導(dǎo)讀:針對當前氣象條件和水稻生產(chǎn)特點,各地要密切關(guān)注天氣變化,適時推進早稻播種育秧進度,加強全生育期管理,奠定早稻豐收基礎(chǔ)。

  【農(nóng)機網(wǎng) 科技創(chuàng)新】 當前,南方早稻播種、育秧、移栽由南向北陸續(xù)展開。過去10天,江南南部、華南中東部等地累計降水量有30—50毫米,其中,廣西東部、廣東大部、江南南部等地的部分地區(qū)有60—90毫米,局地超過100毫米。據(jù)氣象預(yù)測,今年春季華中南部、華南北部等地的降水較常年同期偏多,部分地區(qū)暴雨洪澇災(zāi)害風(fēng)險高。針對當前氣象條件和水稻生產(chǎn)特點,各地要密切關(guān)注天氣變化,適時推進早稻播種育秧進度,加強全生育期管理,奠定早稻豐收基礎(chǔ)。
 
  優(yōu)選良種  適時播種
 
  根據(jù)各地生態(tài)條件、移栽方式等,選擇優(yōu)質(zhì)高產(chǎn)、廣適抗逆、熟期適宜的早稻品種。播種前做好曬種、選種、浸種、消毒、催芽,防止惡苗病等種傳病害發(fā)生,確保芽齊芽壯。當日平均氣溫穩(wěn)定通過12℃時,避開陰雨天氣搶時播種;要抓住“冷尾暖頭”的時機搶晴播種,長江中下游早稻力爭在清明前后完成播種。有條件的地方提倡采用工廠化、大(中)棚、薄膜覆蓋,保溫育秧。
 
  以水調(diào)溫  抗寒防凍
 
  近期南方部分地區(qū)雨水較多、氣溫波動較大,不利于早稻春播和培育壯秧。華南地區(qū)已播秧田要加強防寒工作,根據(jù)秧苗長勢和種植茬口,加強分類管理,促進秧苗健壯生長。未蓋地膜的要及時補蓋地膜,同時采取“夜灌日排”“晴排雨灌”等科學(xué)排灌方式,調(diào)節(jié)秧田水熱狀況,防止出現(xiàn)爛種、爛秧。
 
  科學(xué)調(diào)控  培育壯秧
 
  育秧期間,如遇持續(xù)高溫天氣(膜內(nèi)≥35℃),要及時揭膜通風(fēng),防止高溫?zé)?;揭膜前要進行通風(fēng)煉苗,通風(fēng)煉苗應(yīng)堅持“兩頭開門,前后開窗,一邊揭開,日揭夜蓋,最后全揭”的原則,通風(fēng)時要先灌水,防止生理失水造成死苗。1葉1心期適溫保濕促壯苗,防徒長,注意防止綿腐病、立枯病等發(fā)生。移栽前3—5天打好“送嫁藥”,用異稻瘟凈+嗎胍·乙酸銅(病毒A)或吡蟲啉加+嗎胍·乙酸銅(病毒A)噴施,預(yù)防螟蟲、稻瘟病、南方水稻黑條矮縮病等。未采用育秧專用基質(zhì)的秧田可在移栽前3—5天根據(jù)秧苗生長情況畝施尿素4—5公斤作“送嫁肥”,施后加淋一次清水。對于長勢偏弱的秧苗,適當增施磷鉀肥,促進生長。如遇“倒春寒”天氣,要注意保溫設(shè)施完好,及時以水調(diào)溫,保持田間溫度,防止爛秧死苗。
 
  分類指導(dǎo)  適時移栽
 
  當日平均氣溫穩(wěn)定通過15℃時要搶晴插秧。機插田塊要提高耕整地質(zhì)量,移栽前田塊要沉實,做到適時早插,力求淺插,適當增加密度,宜選用25厘米行距的插秧機。秧齡一般不超過25天、葉齡3葉1心至4葉1心,避免秧齡過大引起緩苗期延長或栽后分蘗減少;畝栽插2.0萬—2.2萬穴,雜交稻每穴2—3基本苗,常規(guī)稻每穴5—6基本苗,確保畝基本苗分別達到5萬—6萬和10萬—12萬。油稻稻三熟制地區(qū)或延遲栽插的早稻,本田營養(yǎng)生長期短,移栽時要增加栽插密度,保證足夠的基本苗數(shù)。
 
  肥水運籌  調(diào)優(yōu)群體
 
  合理施肥。在施足基肥的基礎(chǔ)上要早施分蘗肥,促進低位分蘗發(fā)生,一般在移栽后5—7天畝施尿素4—5公斤。在抽穗前15天左右施用保花肥,合理確定氮肥、鉀肥用量,一般畝施尿素3—5公斤、鉀肥3—5公斤,對于前期長勢偏弱群體,可在抽穗前30天左右施一次促花肥,促進大穗形成。水稻抽穗后看苗補施粒肥,一般畝施尿素1—2公斤或噴施磷酸二氫鉀等葉面肥。科學(xué)管水。做到薄水插秧,淺水回青,濕潤促蘗。插秧時田間灌薄水1.5—2厘米,返青期田間水層保持2—3厘米,分蘗期淺水促進分蘗和早生快發(fā);對于基本苗較多的田塊,建議提早曬田控苗,促進大穗發(fā)育,提高莖蘗成穗率,構(gòu)建高產(chǎn)穩(wěn)產(chǎn)群體;幼穗分化期保持田間水層3—5厘米,如抽穗期遭遇高溫,灌5—8厘米水層緩解高溫?zé)岷?;抽穗揚花后應(yīng)采取間歇灌溉方法,蠟熟期灌水要干干濕濕,以干為主,收割前5—7天斷水。
 
  防控病蟲  適時收獲
 
  密切關(guān)注當?shù)刂脖2块T的預(yù)測預(yù)報,切實做好病蟲害綜合防控。要在噴好“送嫁藥”的基礎(chǔ)下,重點做好稻飛虱、稻縱卷葉螟等遷飛性害蟲的預(yù)警工作,及時選擇對口農(nóng)藥防治。早稻收獲期間連續(xù)高溫、暴雨等惡劣天氣較多,易出現(xiàn)穗發(fā)芽造成減產(chǎn)和品質(zhì)下降。各地要及時組織收獲,大力推進帶秸稈粉碎裝置的機械化聯(lián)合收脫裝備應(yīng)用,提高收獲效率,防止“割青”,做到顆粒歸倉。一般在齊穗后25天左右、全穗失去綠色、穎殼90%變黃時及時收獲。
我要評論
文明上網(wǎng),理性發(fā)言。(您還可以輸入200個字符)

所有評論僅代表網(wǎng)友意見,與本站立場無關(guān)。

產(chǎn)品推薦 更多

[{"ID":"3009396","Picture":"mt0001/d18d22ba8792e2aaeee569d73bfa29e21be0aee298ecf4ba02f45033469295639cb9b4ff456c4c60.jpg","PictureDomain":"img78","Name":"塑料粒子卡氏水分測定儀哪家好","Type":"V310S-KHF","Descrip":"V310S-KHF塑料粒子卡氏水分測定儀,采用空芯進樣針針頭設(shè)計,一次操作既可以實現(xiàn)載氣輸入,水汽輸出,同時由于新的氣路設(shè)計用很小的流量就可以實現(xiàn)水分蒸汽的傳輸,每次進樣只需更換樣品瓶操作方便,無需等待樣品瓶冷卻之后更換瓶蓋。 檢測精度可以達到ppm級,非常適合鋰電、塑料粒子、石化等行業(yè)對水分檢測要求高的行業(yè)。","CompanyName":"四川禾業(yè)科技有限公司","CompanyID":"136265","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"248","City":"成都市","Address":"成都市","PropertysValue":"","HitNumber":"90","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558223","StandUrl":"/st136265","UpdateTime":"2024/12/22 13:03:05","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"103009396","UserID":"149255","PriceType":"0","PictureID":"1854546","CompanyTypeID":"5","Tag":"","LinkMan":"陽經(jīng)理","TelPhone":"86-028-23019668","ClassName":"其它","ComProduct":"卡爾費休水分測定儀,水分測定儀,微量水分測定儀,庫倫法水分測定儀","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"10696","MarketUpdateTime":"","CreateTime":"2024/5/5 3:09:07","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13219022202"},{"ID":"2968828","Picture":"74a34d6b99a3c732ce5ff12e5c58d7b4099dc86403364653100b46d65597fc36d83e02aa7a47bcc9.jpg","PictureDomain":"img41","Name":"便攜式食品重金屬檢測儀","Type":"TY-SZ05T","Descrip":"食品重金屬檢測儀為集成化食品安全快速檢測分析設(shè)備,采用臺式一體化設(shè)計,重金屬檢測儀可廣泛應(yīng)用于大米、糧谷、果品、蔬菜、藥材、水產(chǎn)品中重金屬鉛、鎘、六價鉻、汞、砷、鐵、鎳、鋁等項目進行快速定量檢測,檢測項目可根據(jù)客戶的需求定制,儀器預(yù)留其他項目檢測程序和端口,根據(jù)日后需求可進行遠程升級。","CompanyName":"山東天研儀器有限公司","CompanyID":"135226","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"153","City":"濰坊市","Address":"濰坊市","PropertysValue":"","HitNumber":"106","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558223","StandUrl":"/st135226","UpdateTime":"2024/12/22 13:03:05","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"102968828","UserID":"148216","PriceType":"0","PictureID":"1830457","CompanyTypeID":"5","Tag":"","LinkMan":"周經(jīng)理","TelPhone":"13356706563","ClassName":"其它","ComProduct":"食品安全檢測儀,農(nóng)藥殘留檢測儀,土壤養(yǎng)分檢測儀,ATP熒光檢測儀,水質(zhì)檢測儀,植物生理檢測,微生物檢測儀,MBS,獸藥殘留檢測儀","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"12831","MarketUpdateTime":"","CreateTime":"2024/4/3 3:56:07","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"15854444001"},{"ID":"2987623","Picture":"mt0008/dc0620ef491df17735f59e5a6e8f8b72eb6d2ae2e13aa38632a0f2b2ced64254fa6669049beaec26.jpg","PictureDomain":"img68","Name":"不銹鋼視鏡哪家好","Type":"","Descrip":"安徽利勒潔凈設(shè)備科技有限公司是國內(nèi)專業(yè)生產(chǎn)制造潔凈衛(wèi)生級閥門管件,主要應(yīng)用于食品機械行業(yè)、制藥機械行業(yè)、乳制品行業(yè)、釀酒飲料行業(yè)以及精細化工等行業(yè)高精度衛(wèi)生級流體設(shè)備的專業(yè)生產(chǎn)廠家,產(chǎn)品規(guī)格齊全;產(chǎn)品主要有:衛(wèi)生級制藥用米勒不銹鋼視鏡生產(chǎn)廠家,真空接頭,真空卡箍,真空法蘭,真空管件,真空彎頭,真空三通,真空大小頭,ISO法蘭,KF接頭,真空軟管,真空波紋管等。","CompanyName":"安徽利勒智能裝備科技有限公司","CompanyID":"131057","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"121","City":"宿州市","Address":"宿州市","PropertysValue":"","HitNumber":"52","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558223","StandUrl":"/st131057","UpdateTime":"2024/12/22 13:03:06","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"102987623","UserID":"144046","PriceType":"0","PictureID":"1770838","CompanyTypeID":"5","Tag":"","LinkMan":"丁佩","TelPhone":"86-0557-5715566","ClassName":"其它","ComProduct":"不銹鋼人孔,衛(wèi)生級閥門、管件,配液罐,發(fā)酵罐,攪拌罐,反應(yīng)釜,","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"18151","MarketUpdateTime":"","CreateTime":"2024/4/13 14:14:37","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"18367803373"},{"ID":"2718449","Picture":"00450ea57bc9bc7d40f82831000d70bc70e4836b51fc3b24d3363519632c9647e0b0c93f00ed4f78.jpg","PictureDomain":"img76","Name":"山東不發(fā)火水泥砂漿批發(fā)","Type":"bfh","Descrip":"不發(fā)火砂漿廠家-防火防爆地面水泥基材料-生產(chǎn)工藝-現(xiàn)貨供應(yīng)、電子車間、易產(chǎn)生火花的生產(chǎn)區(qū)域、或易爆工廠、飛機庫、紡織品、紙漿、印刷廠,倉庫、碼頭裝卸區(qū)、機械工廠、飛機停機坪、停車場、油料庫、通道地面、工礦溜槽、橋面、水庫溢洪道、消能池、裝卸斜坡織業(yè)、冷凍庫房、汽車工業(yè)、電子工業(yè)、高速公路等地面","CompanyName":"北京順建興業(yè)工程技術(shù)有限公司","CompanyID":"129229","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"1","City":"北京市","Address":"北京市","PropertysValue":"","HitNumber":"84","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558223","StandUrl":"/st129229","UpdateTime":"2024/12/22 13:03:05","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"102718449","UserID":"142218","PriceType":"0","PictureID":"1682698","CompanyTypeID":"5","Tag":"","LinkMan":"劉經(jīng)理","TelPhone":"010-89433224","ClassName":"其它","ComProduct":"灌漿料 不發(fā)火砂漿 防靜電砂漿 道路冷補料 混凝土抗硫酸鹽防腐劑 混凝土抗?jié)B劑 抗蝕增強劑 混凝土防腐劑","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"29729","MarketUpdateTime":"","CreateTime":"2017/2/14 16:52:54","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13366114499"},{"ID":"3200985","Picture":"mt0001/bc84567bfd36087efdcfb4bc39ea0a79c20ec31a0e36e34d5fbb2eee889bb4a03e81c24951de93a6.jpg","PictureDomain":"img68","Name":"差示掃描量熱儀供應(yīng)商","Type":"","Descrip":"DZ-DSC300C是南京大展檢測儀器推出一款低溫dsc差示掃描量熱議,采用了半導(dǎo)體制冷,可進行-40℃低溫測試,可多段設(shè)置溫度,操作簡單。","CompanyName":"南京大展檢測儀器有限公司","CompanyID":"141344","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"86","City":"南京市","Address":"南京市","PropertysValue":"","HitNumber":"68","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558211","StandUrl":"/st141344","UpdateTime":"2024/12/22 12:51:11","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"103200985","UserID":"154340","PriceType":"0","PictureID":"1973114","CompanyTypeID":"5","Tag":"","LinkMan":"陳經(jīng)理","TelPhone":"400-885-2060","ClassName":"其它","ComProduct":"差示掃描量熱儀、熱重分析儀、同步熱分析儀、炭黑含量測試儀、導(dǎo)熱系數(shù)測試儀和差熱分析儀等儀器的研發(fā)、制造。","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"2190","MarketUpdateTime":"","CreateTime":"2024/11/29 21:58:13","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13357721930"},{"ID":"3146143","Picture":"mt0001/62b67f438055e75401f1d156b46d5220b01d828f6206d975678774d9730e941846756d889d63d9f0.jpg","PictureDomain":"img79","Name":"真空烘箱多少錢","Type":"","Descrip":"DZF6050真空烘箱廣泛應(yīng)用于生物化學(xué)、化工制藥、醫(yī)療衛(wèi)生、農(nóng)業(yè)科研、環(huán)境保護等研究領(lǐng)域,作粉末干燥、烘焙以及各類玻璃容器的消毒和滅菌之用。特別適合對于干燥熱敏性、易氧化分解和復(fù)雜成分物品進行快速高效的干燥處理。","CompanyName":"寧波賽茵儀器有限公司","CompanyID":"140663","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"100","City":"寧波市","Address":"寧波市","PropertysValue":"","HitNumber":"89","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558210","StandUrl":"/st140663","UpdateTime":"2024/12/22 12:50:24","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"3","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"21002","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00","IndustrySort":"1020000","HasPicSort":"103146143","UserID":"153653","PriceType":"0","PictureID":"1946451","CompanyTypeID":"5","Tag":"","LinkMan":"夏三宇","TelPhone":"86-0574-88365938","ClassName":"其它","ComProduct":"真空烘箱,恒溫干燥箱,培養(yǎng)箱,恒溫恒濕箱","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"4083","MarketUpdateTime":"","CreateTime":"2024/9/23 2:04:50","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13616560682"}]