六十路垂乳熟女田舍交尾,性生交大片免费观看1,99久久久国产精品免费最新章节,久久av一区二区三区漫画

今日要聞

2024年秋冬季大白菜科學施肥指導意見

2024-10-06 09:05:00 來源:全國農(nóng)技推廣中心 閱讀量:19972 評論

導讀:針對大白菜生產(chǎn)中有機肥施用量不足,偏施氮肥、單次施肥量過大,盲目施用高磷復合肥,蔬菜地土壤酸化等問題,提出以下施肥原則。

  施肥原則
 
  針對大白菜生產(chǎn)中有機肥施用量不足,偏施氮肥、單次施肥量過大,盲目施用高磷復合肥,蔬菜地土壤酸化等問題,提出以下施肥原則:
 
  (1)合理施用有機肥料,減少化肥用量,提倡施用腐熟的農(nóng)家肥或商品有機肥,忌用沒有充分腐熟的有機肥料,有機無機配合施用。
 
  (2)依據(jù)土壤肥力和目標產(chǎn)量,優(yōu)化氮磷鉀肥用量。
 
  (3)根據(jù)不同生育期養(yǎng)分需求,基肥追肥相結合,追肥以氮鉀肥為主,適當補充微量元素。施用增效肥料,提高肥料利用效率,降低養(yǎng)分損失。
 
  (4)北方石灰性土壤有效硼含量較低,南方酸度大的土壤有效鉬含量較低,應注意微量元素的補充。
 
  (5)土壤酸化嚴重時應適量施用石灰。
 
  (6)施肥與高產(chǎn)栽培結合,選育高產(chǎn)耐密品種,提高育苗質量,采用合理種植密度,選擇適宜播期/移栽期。
 
  施肥建議
 
  (1)產(chǎn)量水平8000—10000公斤/畝,施充分腐熟的優(yōu)質農(nóng)家肥3—4方/畝或商品有機肥300—400 公斤/畝。氮肥(N)20—25公斤/畝,磷肥(P2O5)7—9公斤/畝,鉀肥(K2O)20—25公斤/畝。
 
  (2)產(chǎn)量水平6000—8000公斤/畝,施充分腐熟的優(yōu)質農(nóng)家肥3—4方/畝或商品有機肥300—400 公斤/畝。氮肥(N)15—20公斤/畝,磷肥(P2O5)5—7公斤/畝,鉀肥(K2O)15—20公斤/畝。
 
  (3)產(chǎn)量水平4500—6000公斤/畝,施充分腐熟的優(yōu)質農(nóng)家肥2—3方/畝或商品有機肥200—300 公斤/畝。氮肥(N)10—15公斤/畝,磷肥(P2O5)4—6公斤/畝,鉀肥(K2O)10—15公斤/畝。
 
  (4)產(chǎn)量水平3500—4500公斤/畝,施充分腐熟的優(yōu)質農(nóng)家肥2—3方/畝或商品有機肥200—300 公斤/畝。氮肥(N)8—10公斤/畝,磷肥(P2O5)3—4公斤/畝,鉀肥(K2O)8—10公斤/畝。
 
  (5)基肥重視有機無機配合施用,全部有機肥和磷肥以條施或穴施方式作基肥,氮肥30%作基肥,70%分別于蓮座期和結球前期結合灌溉分兩次作追肥施用,注意在包心前期追施鉀肥,占總施鉀量的50%左右。雨水豐沛或土壤肥力水平較低的地塊,提倡施用含脲酶抑制劑、硝化抑制劑的氮肥。在低溫、寡照等極端環(huán)境下,可施用含氨基酸、黃腐酸、海藻酸等功能性物質)的肥料。
 
  (6)微量元素硼缺乏的地塊,可于播種前基施硼砂1公斤/畝,或于生長中后期用0.1%—0.5%的硼砂或0.1%—0.2%的糖醇硼水溶液進行葉面噴施,每隔5—6天噴一次,連噴2—3次。大白菜為喜鈣作物,除了基施含鈣肥料(如過磷酸鈣)以外,還可葉面噴施0.3%—0.5%的氯化鈣或硝酸鈣溶液。南方菜地土壤pH<5時,每畝施用生石灰100—150公斤,可調(diào)節(jié)土壤和補充鈣素。
 
  來源:農(nóng)業(yè)農(nóng)村部種植業(yè)管理司、全國農(nóng)業(yè)技術推廣服務中心、農(nóng)業(yè)農(nóng)村部科學施肥專家指導組
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。

產(chǎn)品推薦 更多

亚洲一区二区三区免费| 国产毛片久久久久| 人人妻人人骑| 久久高清毛片| 国产尤物视频在线| jizz欧美性10| 亚洲一区中文字幕永久在线| 18sexfreexxxvideo| 精品欧美一区二区精品久久| 无人码人妻一区二区三区免费| 人妻丰满熟妇一区二区三区| 国精一二二产品无人区| 欧美做受高潮8| 国产电影一区二区三区| 女人扒开屁股桶爽6o分钟美女| 大地资源中文在线观看网| 国内精品视频一区二区三区八戒| 一边做爰一边吃奶头描述 | 天天干天天操天天爽| 美女内射毛片在线看3d| 亚洲国产精品久久久久婷婷老年| chinese国产avvideoxxxx实拍| 久久精品国产亚洲AV不卡| 日韩精品一区二区免费视频| 91精品色| 少妇高潮惨叫久久久久久久| 久久久久久视| 亚洲午夜精品电影| SSS视频资源| 人妻精品久久久久中国字幕| jizz多毛熟妇| 九九国产精品入口麻豆| 亚洲毛片一区二区三区| 51cn免费看片| av在线区| 国产午夜福利精品| 97人人爽| 免费在线观看亚洲av| 欧美日韩国产中文| 中国丰满熟妇xxxx性| 免费看黄片毛片|
[{"ID":"3126356","Picture":"mt0001/91acbec15a63dbc90766950e9b08f70237dbf7b2180350a963e4ba20d6ec3aebe42a3da82ee1d5b9.jpg","PictureDomain":"img71","Name":"精密恒溫培養(yǎng)箱哪家好","Type":"DHP-80","Descrip":"產(chǎn)品介紹: 電熱恒溫培養(yǎng)箱適用于醫(yī)療衛(wèi)生、醫(yī)藥、生物、農(nóng)業(yè)、科研等部門作儲藏菌種,生物培養(yǎng)和科研用。微電腦智能數(shù)顯控溫儀,控溫可靠;外門設有兩層玻璃門,觀察箱內(nèi)情況時不影響箱內(nèi)溫度;電加熱采用外加熱式溫度無過沖或損壞培養(yǎng)物之弊。","CompanyName":"江蘇金怡儀器科技有限公司","CompanyID":"140312","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"89","City":"常州市","Address":"常州市","PropertysValue":"","HitNumber":"567","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642712","StandUrl":"/st140312","UpdateTime":"2025/2/19 5:12:27","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":"103126356","UserID":"153302","PriceType":"0","PictureID":"1936056","CompanyTypeID":"5","Tag":"","LinkMan":"黃月珍","TelPhone":"0519-82532542","ClassName":"其它","ComProduct":"肺活量計;培養(yǎng)箱;恒溫搖床;振蕩器;離心機;攪拌器;恒溫水浴鍋、水浴箱、油浴鍋;低溫恒溫槽;電熱板;蒸餾水器;環(huán)境試驗設備;環(huán)保分析儀器;","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"10375","MarketUpdateTime":"","CreateTime":"2024/8/27 19:47:43","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13961201598"},{"ID":"2725529","Picture":"00450ea57bc9bc7d1e06a3790378fa897c8e3761ede7614ed8b81b5108e66d8e229d37c38159bda5.jpg","PictureDomain":"img73","Name":"普析L6312-53氘燈","Type":"","Descrip":"普析通用T6分光光度計氘燈濱松L6312-53氘燈具有高穩(wěn)定性、高輸出、工作壽命長等特點。","CompanyName":"上?;莘挚茖W分析儀器有限公司","CompanyID":"129283","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"392","City":"國外","Address":"國外","PropertysValue":"","HitNumber":"900","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642712","StandUrl":"/st129283","UpdateTime":"2025/2/19 5:12:30","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":"102725529","UserID":"142272","PriceType":"0","PictureID":"1684827","CompanyTypeID":"5","Tag":"","LinkMan":"胡紅梅","TelPhone":"13651667376","ClassName":"其它","ComProduct":"氣相色譜儀,自動進樣器,氣體發(fā)生器,純水機等,","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"31510","MarketUpdateTime":"","CreateTime":"2015/9/4 18:09:18","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13651667376"},{"ID":"2829788","Picture":"15503715273aa74d91ee83a18523026a5298598f90dbe4430714a8f1141bf7fc196b774c3be43d3b.png","PictureDomain":"img78","Name":"全自動川源GRB-200三葉羅茨鼓風機供應商","Type":"GRB-200","Descrip":"川源三葉羅茨鼓風機GRB-200特點:1.風量壓力真空度范圍大:口徑:40mm-300mm(1.5“-12“);風量:0.36-160m3/min(12-5700CFM);壓力:一段GRB型可達8000mmAq(0.8kgf/cm2)。2.排出氣體不含油污。3.電腦動平衡校正一低振動低噪音。4.風量穩(wěn)定,壓力變化對風量之影響 川源GRB三葉羅茨鼓風機GRB-200","CompanyName":"成都索季東股環(huán)保技術有限公司","CompanyID":"128825","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"248","City":"成都市","Address":"成都市","PropertysValue":"","HitNumber":"89","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642712","StandUrl":"/st128825","UpdateTime":"2025/2/19 5:12:18","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"0","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":"102829788","UserID":"141814","PriceType":"0","PictureID":"1668113","CompanyTypeID":"5","Tag":"","LinkMan":"郭偉","TelPhone":"","ClassName":"其它","ComProduct":"川源水泵四川總代理,中國臺灣川源水泵,中國臺灣羅茨鼓風機,中國臺灣河見水泵,PH計;酸度計;工業(yè)pPH計;防水PH計;便攜式PH計;PH電極;PH復合電極;導電率;電導率;溶氧儀;計量泵;定量加藥泵;桶泵;插桶泵;潛水泵;污水泵;污物泵;離心泵;螺桿泵;疊螺脫水機;攪拌機;電動攪拌機;液位計;超聲波液位計;分體超聲波;電磁流量計;流量計;分體電磁流量計","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"32173","MarketUpdateTime":"","CreateTime":"2023/9/29 12:50:00","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"17713557327"},{"ID":"3257268","Picture":"mt0001/4e22132ff1f1e4013c3724fa904c6ada216c0200f9a682ce9e56cd7597026a2e1585b7fe8f45f2a5.png","PictureDomain":"img69","Name":"全自動舜宇體式顯微鏡報價","Type":"DMSZ7系列","Descrip":"視頻一體機體視顯微鏡具有緊湊美觀的外型設計,整合了連續(xù)變倍光學鏡頭和高清數(shù)碼相機,顯示屏、相機、環(huán)形燈均由鏡體統(tǒng)一供電,解決長期困擾您的線束問題。您可根據(jù)需求,自由選擇帶屏或不帶屏。","CompanyName":"蘇州守真儀器設備有限公司","CompanyID":"142041","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"90","City":"蘇州市","Address":"蘇州市","PropertysValue":"","HitNumber":"27","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642710","StandUrl":"/st142041","UpdateTime":"2025/2/19 5:10:05","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":"103257268","UserID":"155042","PriceType":"0","PictureID":"2022519","CompanyTypeID":"5","Tag":"","LinkMan":"吳女士","TelPhone":"17321150489","ClassName":"其它","ComProduct":"電子萬能試驗機,電液伺服試驗機,沖擊試驗機,顯微維氏硬度計,布氏硬度計 ,切割機 ,磨拋機 ,金相顯微鏡","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"856","MarketUpdateTime":"","CreateTime":"2025/1/28 6:58:15","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13382153105"},{"ID":"2804720","Picture":"15503715273aa74d736faa2924c92a8529d59c31d05f761068fa3e224c3fd34dc18fe195e292fef9.jpg","PictureDomain":"img69","Name":"污水水泵維保供應商","Type":"","Descrip":"水泵維保:水泵的壽命延長,良好的保養(yǎng)具有重要性;水泵是輸送液體或使液體增壓的機械。它將原動機的機械能或其他外部能量傳送給液體,使液體能量增加,主要用來輸送液體包括水、油、酸堿液、乳化液、懸乳液和液態(tài)金屬等。","CompanyName":"上海大江工業(yè)泵廠","CompanyID":"130352","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"139","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642709","StandUrl":"/st130352","UpdateTime":"2025/2/19 5:09:55","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":"102804720","UserID":"143341","PriceType":"0","PictureID":"1740598","CompanyTypeID":"5","Tag":"","LinkMan":"姚先生","TelPhone":"021-62850683","ClassName":"其它","ComProduct":"耐腐蝕液下泵;強耐腐蝕離心泵;耐腐蝕泵;管道泵;自吸泵;旋渦泵;單螺桿泵;離心泵;無堵塞排污泵;隔膜泵;管道離心泵;耐腐蝕泵;多級離心泵;自吸泵;耐腐耐磨砂漿泵;直聯(lián)耐腐自吸塑料泵;液下泵;長軸液下泵;磁力驅動離心泵;耐高溫磁力驅動泵;自吸磁力泵;磁力傳動旋渦泵;臥式多級離心泵;多級離心泵;立式多級泵;鍋爐給水泵;水環(huán)式真空泵;齒輪式輸油泵;管道油泵;電動往復泵;隔膜泵;潛水排污泵;油式潛水電泵;深井泵;供水成套設備和機械密封系列","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"23112","MarketUpdateTime":"","CreateTime":"2023/8/20 20:36:31","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13916593552"},{"ID":"3159733","Picture":"mt0001/716cbbfcbc1fd29315a6629c1296ee879b975ecbd9b0d6785898e5adaf5009c41a5b514971629b81.jpg","PictureDomain":"img59","Name":"國產(chǎn)微型洗瓶機多少錢","Type":"LW8508","Descrip":"LW8508 全自動微微型清洗機滿足GA系統(tǒng)物證鑒定中心實驗室, 物證鑒定實驗器具和器皿的再處理, 以及高校科研實驗室容量瓶、 進樣小瓶、 三角瓶、 試管等器皿的再處理。 設備可單獨安裝于實驗臺上。","CompanyName":"廣州摩特偉希爾機械設備有限責任公司","CompanyID":"128729","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"213","City":"廣州市","Address":"廣州市","PropertysValue":"","HitNumber":"57","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51642709","StandUrl":"/st128729","UpdateTime":"2025/2/19 5:09:23","TodayIsUpdate":"1","AttType":"0","AttState":"3","AttAddType":"0","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":"103159733","UserID":"141718","PriceType":"0","PictureID":"1956660","CompanyTypeID":"5","Tag":"","LinkMan":"郝子渝","TelPhone":"020-28131701","ClassName":"其它","ComProduct":"實驗室玻璃器皿清洗機,清洗劑,實驗室水處理設備,實驗室手推車","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"38216","MarketUpdateTime":"","CreateTime":"2024/10/12 13:35:57","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"15013202531"}]