今日要聞

【實用技術(shù)】玉米播種技術(shù)要點

2024-05-09 09:28:06 來源：內(nèi)蒙古自治區(qū)農(nóng)牧廳 閱讀量：11948 評論

導(dǎo)讀：提高播種質(zhì)量，實現(xiàn)一播全苗、勻苗，需要從品種選擇、種子處理、導(dǎo)航精量播種、設(shè)置合理種植密度和株行距配置以及種肥施用等方面入手。

　　【農(nóng)機網(wǎng) 科技創(chuàng)新】 提高播種質(zhì)量，實現(xiàn)一播全苗、勻苗，需要從品種選擇、種子處理、導(dǎo)航精量播種、設(shè)置合理種植密度和株行距配置以及種肥施用等方面入手。
 
　　1.品種選擇
 
　　選擇國家或自治區(qū)審定(或引種備案)，在當(dāng)?shù)匾逊N植并表現(xiàn)優(yōu)良的耐密、抗倒、高產(chǎn)、適應(yīng)機械精量點播和機械收獲的品種。優(yōu)選在當(dāng)?shù)亻_展過多年試驗示范的優(yōu)質(zhì)高產(chǎn)耐密品種。籽粒機械直收要求后期脫水快、生育期較當(dāng)?shù)厮胧掌贩N生育期短5-7天(或≥10℃活動積溫少150-200℃)的品種。
 
　　2.種子處理
 
　　需對種子進(jìn)行分級和精準(zhǔn)包衣處理。經(jīng)過分級篩選后的種子，進(jìn)行1-2天的曬種，以提高種子活力和發(fā)芽率，可根據(jù)當(dāng)?shù)孛缙诔Ｒ姴∠x害種類選用不同的種衣劑進(jìn)行精準(zhǔn)包衣，從而有效防控出苗階段與苗期病蟲害。
 
　　針對金針蟲、蠐螬、地老虎等地下害蟲，建議選用含有吡蟲啉、氟蟲腈或溴氰蟲酰胺等成分的種衣劑；針對土傳病害，選用含咯菌腈和精甲霜靈以及苯醚甲環(huán)唑等殺菌劑，而在玉米線蟲矮化病發(fā)生重的區(qū)域，要選用含丁硫克百威、硫雙威等對線蟲有效的農(nóng)藥。吡蟲啉，噻蟲嗪，均為內(nèi)吸殺蟲劑，滿適金中主要是殺菌劑，包括咯菌腈和精甲霜靈。需要進(jìn)行二次包衣后的種子應(yīng)充分晾干。
 
　　3.適時精量導(dǎo)航播種
 
　　耐低溫發(fā)芽的玉米品種可在5厘米地溫穩(wěn)定通過10℃時播種，偏粉質(zhì)類型的種子，需要5厘米地溫穩(wěn)定通過12℃時播種。確定播期后，選用帶衛(wèi)星導(dǎo)航輔助駕駛功能的動力機械和單粒精量播種機，一次性完成施底肥、播種、鋪設(shè)滴灌帶、覆土、鎮(zhèn)壓等作業(yè)。滴灌帶鋪設(shè)在窄行內(nèi)，覆土3-5厘米。播種深度要均勻一致，播深4-5厘米，下粒均勻，鎮(zhèn)壓緊實。
 
　　4.設(shè)置合理種植密度和株行距配置
 
　　根據(jù)當(dāng)?shù)氐臍夂驐l件、土壤條件、品種特性和生產(chǎn)條件、品種特性及生產(chǎn)目的，合理配置株行距，確保適宜密度。行距采用40厘米+70-80厘米寬窄行配置，一般大田比目前種植密度每畝增加500-1000株。其中，東部區(qū)管(漫)灌地種植密度5000-6000株/畝，有滴灌條件的種植密度5500-6500株/畝；中西部區(qū)光照條件比較好，管(漫)灌地種植密度5000-6000株/畝，有滴溉條件的地塊一般中晚熟品種種植密度6000-7000株/畝、中早熟品種6500-7000株/畝。土壤肥力低、生產(chǎn)條件差的地塊，推薦選品種適宜種植密度的下限值；土壤中上等肥力、生產(chǎn)條件好的地塊，選品種適宜種植密度的上限值。
 
　　5.種肥施用
 
　　種肥根據(jù)目標(biāo)產(chǎn)量，精準(zhǔn)施用，用量不宜過大。一般20-30%的氮肥,50-60%的磷肥、鉀肥作種肥，氮肥的純氮量不宜超過2公斤/畝。種肥施在種子側(cè)下方7-8厘米深處(距離種子5厘米處)。

上一篇： 油菜應(yīng)對連陰雨及時搶收減損技術(shù)意見

下一篇：水稻無人機追肥技術(shù)指導(dǎo)意見

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":"2697745","Picture":"00450ea57bc9bc7d06c9957a2b2816ce434a46dff3e687d4818dcddcb808a58be013efacb6aa3f59.jpg","PictureDomain":"img80","Name":"銷售沖擊試驗機檢定裝置哪家好","Type":"QYCJ-500A型","Descrip":"QYCJ-500型沖擊試驗機檢定裝置是常州銓儀計量科技有限公司根據(jù)《JJG 145-2007擺錘式?jīng)_擊試驗機》檢定規(guī)程中相關(guān)指標(biāo)研發(fā)生產(chǎn)的。","CompanyName":"江蘇銓儀計量科技有限公司","CompanyID":"128873","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"89","City":"常州市","Address":"常州市","PropertysValue":"","HitNumber":"111","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558533","StandUrl":"/st128873","UpdateTime":"2024/12/22 18:13:05","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":"102697745","UserID":"141862","PriceType":"0","PictureID":"1669270","CompanyTypeID":"5","Tag":"","LinkMan":"胡經(jīng)理","TelPhone":"400-1399-365 ","ClassName":"其它","ComProduct":"計量檢定裝置，標(biāo)準(zhǔn)測力儀、測力杠桿、砝碼、同軸度測量儀、千斤頂檢定儀及扭矩檢定儀等","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"33358","MarketUpdateTime":"","CreateTime":"2022/10/25 13:56:41","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"15995215336"},{"ID":"2997301","Picture":"74a34d6b99a3c732ecdc0f574baac1d632876be0f330c411d1ce4f201da80e06b6ce7e68c15c77ff.jpg","PictureDomain":"img44","Name":"供應(yīng)鋼輪式耐磨試驗機價格","Type":"GLM-200","Descrip":"一、用途本機適用于所有無釉磚、混凝土，天然石材，水泥路面磚等材料的耐磨試驗。是完善建筑陶瓷及配件生產(chǎn)企業(yè)的，檢驗條件，確保產(chǎn)品質(zhì)量的檢驗用儀器設(shè)備。二、依據(jù)標(biāo)準(zhǔn)GB/T3810.6--2006/ISO10545-6:1995《陶瓷磚試驗方法無釉磚耐磨深度的測定》;GB/T12988-2009《無機地面材料耐磨性能試驗方法》對試驗儀器的要求。","CompanyName":"獻(xiàn)縣方遠(yuǎn)建筑公路實驗儀器廠","CompanyID":"130372","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"13","City":"滄州市","Address":"滄州市","PropertysValue":"","HitNumber":"67","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558530","StandUrl":"/st130372","UpdateTime":"2024/12/22 18:10:03","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":"102997301","UserID":"143361","PriceType":"0","PictureID":"1854981","CompanyTypeID":"5","Tag":"","LinkMan":"李軍","TelPhone":"18532726905","ClassName":"其它","ComProduct":"CA砂漿儀器,自密實混凝土檢測儀器，管道壓漿劑檢測儀器，生石灰試驗儀器，混凝土增實因數(shù)，隧道防水板焊縫氣密性檢測儀","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"21723","MarketUpdateTime":"","CreateTime":"2024/4/23 12:36:52","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13833708950"},{"ID":"3012411","Picture":"mt0001/91acbec15a63dbc98b00bac08373d69644f61453c4e89b6f72c0eac7e0bfc6d7b8cc90b7ae7ffd1e.png","PictureDomain":"img70","Name":"全自動庫侖氯分析儀","Type":"ST-1535","Descrip":"ST-1535微庫侖氯測定器是應(yīng)用微庫侖分析技術(shù)，采用計算機控制微庫侖滴定的產(chǎn)品，具有性能可靠、操作簡易、穩(wěn)定性好、便于安裝等特點。符合SH/T 0253、SH/T 0222、GB/T 11060.4、GB/T 11061.4、GB/T 6324.4、GB/T 12688.6、GB/T 11141、GB/T18612等標(biāo)準(zhǔn)，可用于石油化工、煤化工、芳香烴、天然氣等產(chǎn)品中氯含量的分析。廣泛應(yīng)用于電力","CompanyName":"北京旭鑫儀器設(shè)備有限公司","CompanyID":"134508","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"1","City":"北京市","Address":"北京市","PropertysValue":"","HitNumber":"80","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558528","StandUrl":"/st134508","UpdateTime":"2024/12/22 18:08:28","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":"103012411","UserID":"147498","PriceType":"0","PictureID":"1814976","CompanyTypeID":"5","Tag":"","LinkMan":"彭經(jīng)理","TelPhone":"010-53519848","ClassName":"其它","ComProduct":"油品分析儀器，閃點儀，微水儀，酸值測定儀，運動粘度測定儀、密度測定儀....等","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"13605","MarketUpdateTime":"","CreateTime":"2024/5/8 14:52:09","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"13552425029"},{"ID":"3201977","Picture":"74a34d6b99a3c7327ca0ee85636b0f1cd6c586849cfeaee8a9700bdc37a2a31a6c387b05800a323c.jpg","PictureDomain":"img54","Name":"供應(yīng)甲醛檢測儀廠家","Type":"MP184","Descrip":"MP184 手持式檢測儀秉承了將 PID 方式應(yīng)用于 VOC 快速檢測的初衷，為客戶提供便攜、準(zhǔn)確、快速和兼具經(jīng)濟(jì)性的檢測產(chǎn)品。MP184 實時檢測數(shù)據(jù)有圖形和數(shù)字兩種顯示模式，智能繪圖顯示氣體濃度動態(tài)，支持中英文操作界面；低功耗檢測器，一次充電可支持超過 24 小時連續(xù)檢測；數(shù)據(jù)自動存儲，數(shù)據(jù)下載方式可以通過有線或者無線方式，數(shù)據(jù)實時通訊亦可以選擇有線或者無線方式。其中無線方式可以靈活的選擇藍(lán)牙或者無線模塊， MP184 內(nèi)置跌倒報警結(jié)合無線傳輸功能，將現(xiàn)場檢測數(shù)據(jù)實時傳輸?shù)奖O(jiān)測端同時限度的保","CompanyName":"青島大森環(huán)保設(shè)備有限公司","CompanyID":"141565","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"0","City":"","Address":"","PropertysValue":"","HitNumber":"33","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558524","StandUrl":"/st141565","UpdateTime":"2024/12/22 18:04:05","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":"103201977","UserID":"154566","PriceType":"0","PictureID":"1985974","CompanyTypeID":"5","Tag":"","LinkMan":"王凱","TelPhone":"86-0532-83800187","ClassName":"其它","ComProduct":"水質(zhì)檢測儀器、粉塵檢測儀器、氣體檢測儀器、大氣粉塵采樣器、酒精檢測儀器、煙氣分析儀器、化學(xué)實驗通用儀器、室內(nèi)空氣檢測儀器等設(shè)備","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"744","MarketUpdateTime":"","CreateTime":"2024/12/2 3:46:38","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"15610558732"},{"ID":"3155777","Picture":"mt0001/716cbbfcbc1fd2933983d02a4e1c4e24b5814a701543660379cf6b42fd9a5b33ce8e922c116dce62.jpg","PictureDomain":"img44","Name":"供應(yīng)二氧化硫檢測儀公司","Type":"","Descrip":"ZSO2-3000A二氧化硫檢測儀產(chǎn)品簡介：藥典中所提供的檢測方法的主要原理是將中藥材以蒸餾法進(jìn)行處理，樣品中的亞硫酸鹽系列物質(zhì)加酸處理后轉(zhuǎn)化為二氧化硫后，隨氮氣流帶入到含有雙氧水的吸收瓶中，雙氧水將其氧化為硫酸根離子，采用酸堿滴定法測定，計算藥材及飲片中的二氧化硫殘留量。","CompanyName":"上海譜美儀器科技有限公司","CompanyID":"140895","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"103","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558524","StandUrl":"/st140895","UpdateTime":"2024/12/22 18:04:10","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":"103155777","UserID":"153885","PriceType":"0","PictureID":"1956214","CompanyTypeID":"5","Tag":"","LinkMan":"王先生","TelPhone":"4008061879","ClassName":"其它","ComProduct":"氣相色譜儀，液相色譜儀，原子吸收光譜儀，氣質(zhì)聯(lián)用儀，液質(zhì)聯(lián)用儀，藥品穩(wěn)定性試驗箱，溶出儀，分析天平，氫氣發(fā)生器等","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"3680","MarketUpdateTime":"","CreateTime":"2024/10/6 14:57:20","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"18621660048"},{"ID":"2888580","Picture":"mt0001/d69c016c8587526cf3107edc1419e840261602257314fa122bafd9a4bf2fe55e338af5a6c1123ab5.jpg","PictureDomain":"img66","Name":"銷售植物生長箱價格","Type":"JNR-1018","Descrip":"植物生長箱是人工氣候箱類目里精密培養(yǎng)箱，主要適用于植物的生長和組織培養(yǎng)，種子發(fā)芽、育苗、微生物的培養(yǎng)試驗；昆蟲小動物的飼養(yǎng)；水質(zhì)監(jiān)測的BOD測定；藥材、木材、建材的老化及使用壽命測試等，以及其他用途的光照，恒溫、恒濕的專用試驗設(shè)備。適用于生命科學(xué)、細(xì)胞微生物、分子基因遺傳等研究；是生物工程、醫(yī)學(xué)、農(nóng)學(xué)、水產(chǎn)、畜牧等眾多領(lǐng)域從事科研及生產(chǎn)常用的理想輔助設(shè)備，提供了精準(zhǔn)的恒溫恒濕及模擬光照的實驗條件。","CompanyName":"寧波江南儀器廠","CompanyID":"132721","MarketPrice":"0","PsOrder":"0","PgID":"110","MaxOrder":"0","CityID":"100","City":"寧波市","Address":"寧波市","PropertysValue":"","HitNumber":"88","FrontShow":"0","IsCharges":"1","Year":"1","StarNum":"1","UpdateAndClientSort":"51558524","StandUrl":"/st132721","UpdateTime":"2024/12/22 18:04:17","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":"102888580","UserID":"145710","PriceType":"0","PictureID":"1787385","CompanyTypeID":"5","Tag":"","LinkMan":"繆先生","TelPhone":"0574-18858002588","ClassName":"其它","ComProduct":"人工氣候箱,光照培養(yǎng)箱,生化培養(yǎng)箱,霉菌培養(yǎng)箱,恒溫恒濕培養(yǎng)箱,低濃度恒溫恒濕稱重系統(tǒng),江南培養(yǎng)箱","BrandNameCH":"","IsShow":"1","MarketPrice2":"0","RetailPrice":"0","ComHitnumber":"16003","MarketUpdateTime":"","CreateTime":"2024/1/14 17:06:17","Flag":"1","PackageName":"營銷寶會員","ClientSort":"0","CsName":"","Reprint":"2","FeedBackMsg":"","EnUrl":"","MobilePhone":"18858002588"}]