河南省是馬鈴薯二季(春、秋)作zuo區qu,春chun季ji主zhu要yao生sheng產chan商shang品pin薯shu,秋qiu季ji主zhu要yao生sheng產chan種zhong薯shu。近jin幾ji年nian來lai,隨sui著zhe河he南nan省sheng馬ma鈴ling薯shu生sheng產chan的de發fa展zhan,秋qiu季ji商shang品pin薯shu生sheng產chan麵mian積ji也ye逐zhu漸jian增zeng大da。但dan是shi,由you於yu各ge種zhong原yuan因yin,多duo數shu種zhong植zhi戶hu反fan映ying秋qiu馬ma鈴ling薯shu產chan量liang不bu高gao,嚴yan重zhong製zhi約yue了le馬ma鈴ling薯shu的de生sheng產chan。因yin此ci,在zai種zhong植zhi秋qiu馬ma鈴ling薯shu時shi應ying選xuan擇ze優you質zhi、高產、早熟、休眠期較短(40~50天)、適宜二季作區種植的品種,如鄭薯五號、鄭薯六號、中薯三號、費烏瑞它、東農303、克新四號、早大白等。
播種關
由於秋季播種時間正值高溫多雨季節,容易爛種,所以要整薯播種,可選擇50kezuoyoudexiaotudouzuoweizhongshushiyong。qiumalingshuchanliangdideyigezhuyaoyuanyinjiushishiyimalingshushengchangdeshijianjiaoduan,suoyishangpinshushengchanyaoshidangtiqianbozhong,jinliangyanchangqishengchangshijian,bozhongshijiankexuanzai8月初。8月高溫多雨,田間積水時易引起爛薯,影響出苗及植株生長,所以雨後要及時排除積水並進行中耕,以利出苗。
管理關
qiumalingshushengchangqianqiwendugao,shiyijingyeshengchang,houqiwendudi,zhouyewenchada,liyushukuaipengda,zhenggeshengchangqijianyibanbuhuichuxiantuchangxianxiang。suoyizaipeiqiumalingshushiyaodashuidafeiyicudaodi,zaozhuifeizaoguanli。zaijifeichongzudeqingkuangxia,shengchangqijianyaozhuiliangcifei,diyicizhuifeizaichumiao70%~80%時進行,畝施碳銨50公斤;第二次追肥在苗高20厘米左右時進行,畝施尿素15~30公斤。平時視雨水情況及時澆水,保持地表濕潤。秋季培土應采取每次淺培、多次培土的辦法。第一次培土在苗高20厘米左右時進行,第二次培土在開花初期進行,第三次培土在10月(yue)下(xia)旬(xun)霜(shuang)降(jiang)前(qian),此(ci)次(ci)培(pei)土(tu)要(yao)厚(hou)些(xie),以(yi)利(li)保(bao)護(hu)塊(kuai)莖(jing),防(fang)止(zhi)霜(shuang)凍(dong)。霜(shuang)降(jiang)前(qian)澆(jiao)一(yi)次(ci)大(da)水(shui)防(fang)霜(shuang),以(yi)適(shi)當(dang)延(yan)長(chang)莖(jing)葉(ye)生(sheng)長(chang)時(shi)間(jian),爭(zheng)取(qu)後(hou)期(qi)產(chan)量(liang)。有(you)條(tiao)件(jian)的(de)地(di)方(fang)10月中下旬可在田間加設小拱棚等。
病蟲害防治關
qiujiyinyutianjiaoduo,bingchonghaijiaozhong,rushuyufangzhi,wangwanghuiyinqibingchonghaidemanyan,zaochengyanzhongjianchan。qiujizuichangfashengdebinghaishiwanyibing,chonghaishichahuangman,weihaishijianduozai9月中下旬至10月上旬。對晚疫病可用瑞毒黴、可殺得、殺毒礬、乙磷鋁、波爾多液等藥劑防治,對茶蟥蟎可用克蟎特、滅蟎猛、環丙殺蟎醇等藥劑防治。9月中下旬噴一次藥,以後每隔一周噴一次藥,噴三次藥即可控製晚疫病和茶蟥蟎的發生。
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