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小米草

發(fa)布時間:2023-01-12 11:38:02人氣:1679
  • 小米草

小(xiao)米(mi)草(cao)(cao),又名雀(que)葉稗,是(shi)玄參科、小(xiao)米(mi)草(cao)(cao)屬植(zhi)物。植(zhi)株直立(li),高(gao)10-30(45)厘(li)米(mi),不分枝或下部分枝,被白(bai)色柔(rou)毛。葉與苞(bao)葉無柄,卵形(xing)至(zhi)(zhi)卵圓形(xing)。花序長(chang)3-15cm,初(chu)花期短而花密集,逐漸(jian)伸(shen)長(chang)至(zhi)(zhi)果期果疏離;花萼管狀。蒴果長(chang)矩(ju)圓狀,長(chang)4-8mm。種子(zi)白(bai)色,長(chang)1mm。花期6-9月。全(quan)草(cao)(cao)可(ke)以入藥,具有(you)清(qing)熱(re)解(jie)毒,利(li)尿。主(zhu)治(zhi)熱(re)病口渴,頭痛,肺熱(re)咳(ke)嗽,咽喉腫(zhong)痛,熱(re)淋(lin), 小(xiao)便不利(li),口瘡,癰腫(zhong)。

品種特性

喜(xi)溫暖(nuan)濕潤氣候,適應性(xing)較強,耐(nai)寒(han)又(you)耐(nai)熱,*適宜生(sheng)(sheng)長(chang)溫度為25-35℃,5-8月氣候沮暖(nuan)濕潤,生(sheng)(sheng)長(chang)*快,遇上夏(xia)季38-40℃高(gao)溫,生(sheng)(sheng)長(chang)仍然良好;

抗水(shui)能力強,淹(yan)水(shui)一個星期仍可存活;

具有播種時(shi)間長、生長期(qi)短、產(chan)量高、營養物質(zhi)含量高、種植(zhi)范(fan)圍廣、省肥耐旱、用途廣泛等(deng)特點(dian)。

栽培技術要點:

(1)整地

小(xiao)米草根系發達,要(yao)求深耕(geng),施足(zu)底(di)(di)肥,一(yi)般每(mei)畝施人糞尿1500kg或(huo)畜糞廄肥2500-4000kg。小(xiao)米草種(zhong)籽細小(xiao),外表有(you)一(yi)層殼皮(pi)包著,需(xu)要(yao)有(you)充(chong)足(zu)水(shui)分才能發芽,幼苗期生(sheng)長(chang)緩慢。早地或(huo)水(shui)田種(zhong)植小(xiao)米草都需(xu)要(yao)將田地整平(ping),土塊整細,使播種(zhong)的種(zhong)籽能充(chong)分得到水(shui)分。魚池(chi)池(chi)底(di)(di)種(zhong)青,在池(chi)底(di)(di)四周(zhou)開(kai)一(yi)圈(quan)圍溝,以排(pai)過多積水(shui),有(you)利小(xiao)米草生(sheng)長(chang)。 

(2)播種(zhong)

選(xuan)種:播(bo)種前要進(jin)行(xing)選(xuan)種和發芽試臉。選(xuan)擇粒大(da)的種籽進(jin)行(xing)播(bo)種,從出(chu)芽率計(ji)算出(chu)每畝地田箱要的正確播(bo)種數量。

播種(zhong)(zhong)期(qi):小(xiao)米草播種(zhong)(zhong)期(qi)視土坡的溫度而定,一般土城(cheng)沮(ju)度在10℃以上就(jiu)能播種(zhong)(zhong),專門(men)為(wei)收割鮮草播種(zhong)(zhong)期(qi)安(an)排為(wei)3月和(he)7月下(xia)旬(xun),6月和(he)9月上旬(xun)4次(ci),全年(nian)(nian)可(ke)收割鮮草6-7次(ci)。專門(men)為(wei)收獲(huo)(huo)種(zhong)(zhong)籽(zi)的播種(zhong)(zhong)期(qi)安(an)排為(wei)3月下(xia)旬(xun)和(he)6月、8月中旬(xun)3次(ci),全年(nian)(nian)可(ke)收獲(huo)(huo)種(zhong)(zhong)籽(zi)2-3次(ci)。

播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)方(fang)法(fa)(fa):小(xiao)米(mi)草分(fen)(fen)直接播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)和浸種(zhong)(zhong)(zhong)(zhong)播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)二種(zhong)(zhong)(zhong)(zhong)方(fang)法(fa)(fa),以浸種(zhong)(zhong)(zhong)(zhong)播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)的(de)效果(guo)為(wei)好。播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)方(fang)法(fa)(fa)分(fen)(fen)撒(sa)播(bo)(bo)、點(dian)(dian)(dian)播(bo)(bo)和育苗移栽(zai)(zai)。撤播(bo)(bo)適用于魚(yu)池池底(di)種(zhong)(zhong)(zhong)(zhong)植,點(dian)(dian)(dian)播(bo)(bo)適用于旱地、魚(yu)池堤(di)邊和堤(di)面種(zhong)(zhong)(zhong)(zhong)植,育苗移栽(zai)(zai)不論水田或(huo)早地都能適應。利用魚(yu)池池底(di)種(zhong)(zhong)(zhong)(zhong)小(xiao)米(mi)草,效果(guo)更好,既省肥又(you)產量(liang)高(gao)。點(dian)(dian)(dian)播(bo)(bo)和移栽(zai)(zai)的(de)行距為(wei)20cm,株(zhu)(zhu)距為(wei)10cm,專門為(wei)收種(zhong)(zhong)(zhong)(zhong)籽(zi)(zi)的(de)播(bo)(bo)種(zhong)(zhong)(zhong)(zhong)方(fang)法(fa)(fa)是行距25cm,株(zhu)(zhu)距20cm。一般每畝種(zhong)(zhong)(zhong)(zhong)籽(zi)(zi)用量(liang)為(wei)1-1.5kg。池底(di)種(zhong)(zhong)(zhong)(zhong)小(xiao)米(mi)草作(zuo)為(wei)淹青養(yang)魚(yu)的(de),每畝用籽(zi)(zi)量(liang)可(ke)增(zeng)加至(zhi)2-2.5kg。小(xiao)米(mi)草籽(zi)(zi)小(xiao)以淺(qian)播(bo)(bo)為(wei)宜,上蓋(gai)一層薄(bo)土(tu)為(wei)*好,這樣(yang)可(ke)減(jian)少種(zhong)(zhong)(zhong)(zhong)籽(zi)(zi)的(de)損(sun)失(shi)。  

(3)管理

補(bu)足青(qing)苗:播種(zhong)后,一(yi)旦(dan)發現缺(que)苗,應立(li)即進行補(bu)種(zhong)。

中耕除草:小米(mi)草整個生長期間一(yi)般只需除草一(yi)次,中耕除草后(hou),施一(yi)次追肥。

灌(guan)溉:小米(mi)草(cao)在(zai)水(shui)分多的情況下,生長迅速(su),在(zai)魚(yu)池(chi)堤(di)邊(bian)或堤(di)面水(shui)源(yuan)方便的地(di)方種植的小米(mi)草(cao),應適(shi)當灌(guan)水(shui),一(yi)般(ban)以噴徽較(jiao)好,可提高產量。

追(zhui)肥(fei):一(yi)般在幼苗期、割后追(zhui)肥(fei),每畝(mu)追(zhui)施尿素(su)5kg或人(ren)糞尿750-1000kg。

(4)收割

小米(mi)草(cao)生長期較(jiao)短,從播(bo)種到收籽收割一(yi)次(ci),一(yi)般收割商(shang)度60-80cm,留茬10-15cm。




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