草坪長到一定高度後,為了保持美觀,應及時進行修剪。對長得較高的草坪不能1次剪至所需高度,每次剪去1/3葉片,保留葉片光合作用,為根係補充同化產物。若1次(ci)修(xiu)剪(jian)過(guo)度(du),會(hui)阻(zu)礙(ai)根(gen)係(xi)生(sheng)長(chang),草(cao)坪(ping)會(hui)因(yin)養(yang)分(fen)缺(que)乏(fa)而(er)死(si)亡(wang)。草(cao)坪(ping)長(chang)到(dao)足(zu)夠(gou)高(gao)時(shi),下(xia)部(bu)葉(ye)片(pian)長(chang)時(shi)間(jian)被(bei)遮(zhe)蔽(bi),見(jian)不(bu)著(zhe)陽(yang)光(guang),已(yi)適(shi)應(ying)了(le)蔭(yin)蔽(bi)環(huan)境(jing),當(dang)剪(jian)去(qu)上(shang)部(bu)葉(ye)片(pian)時(shi),下(xia)部(bu)葉(ye)片(pian)暴(bao)露(lu)在(zai)陽(yang)光(guang)下(xia),會(hui)由(you)於(yu)過(guo)量(liang)的(de)光(guang)照(zhao)而(er)造(zao)成(cheng)葉(ye)片(pian)灼(zhuo)傷(shang)。草(cao)坪(ping)生(sheng)長(chang)過(guo)於(yu)旺(wang)盛(sheng)時(shi)應(ying)調(tiao)高(gao)修(xiu)剪(jian)高(gao)度(du),三(san)四(si)天(tian)後(hou)再(zai)按(an)正(zheng)常(chang)修(xiu)剪(jian)高(gao)度(du)進(jin)行(xing)修(xiu)剪(jian),以(yi)免(mian)成(cheng)熟(shu)葉(ye)片(pian)被(bei)過(guo)量(liang)剪(jian)去(qu),造(zao)成(cheng)陽(yang)光(guang)灼(zhuo)傷(shang)和(he)雜(za)草(cao)孳(zi)生(sheng)。
暖季型草修剪次數要求最少的為假儉草,其餘依次為溝葉結縷草、細葉結縷草、日本結縷草;狗(gou)牙(ya)根(gen)和(he)地(di)毯(tan)草(cao)要(yao)求(qiu)修(xiu)剪(jian)次(ci)數(shu)較(jiao)多(duo)。冷(leng)季(ji)型(xing)草(cao)中(zhong)細(xi)葉(ye)羊(yang)茅(mao)和(he)紫(zi)羊(yang)茅(mao)要(yao)求(qiu)修(xiu)剪(jian)次(ci)數(shu)較(jiao)少(shao),其(qi)他(ta)草(cao)種(zhong)修(xiu)剪(jian)次(ci)數(shu)較(jiao)為(wei)頻(pin)繁(fan)。施(shi)用(yong)氮(dan)肥(fei)對(dui)草(cao)坪(ping)的(de)生(sheng)長(chang)快(kuai)慢(man)影(ying)響(xiang)較(jiao)大(da),用(yong)量(liang)越(yue)高(gao)草(cao)坪(ping)的(de)生(sheng)長(chang)速(su)度(du)越(yue)快(kuai),修(xiu)剪(jian)的(de)頻(pin)率(lv)就(jiu)越(yue)高(gao)。
xiujianpinlvhaiyucaopingdeshengchangjijieyouguan。lengjixingcaopingzaichunqiujishengchangjiaokuai,xiujiancishujiaoduo,erzaixiajizeshengchangbianman,xiujianpinlvjiangdi。nuanjixingcaopingzaixiajishengchangjiaokuai,chunqiujishengchanghuanman,xiujianpinlvjiangdi。buguanshilengjixingcaohaishinuanjixingcao,zaijiaolengdeqihouxiagenxishengchanghuanman,huoxingjiangdi,bunengweidishangbutigongbixudeyingyang,yinci,zaixiujianshiyingquqishiyixiujiangaodudexiaxian,yijianshaodishangbuduiyangfendexiaohao。
在(zai)一(yi)定(ding)範(fan)圍(wei)內(nei)灌(guan)水(shui)量(liang)與(yu)草(cao)坪(ping)草(cao)的(de)生(sheng)長(chang)量(liang)有(you)關(guan),灌(guan)水(shui)量(liang)越(yue)大(da),草(cao)坪(ping)的(de)修(xiu)剪(jian)次(ci)數(shu)越(yue)多(duo)。相(xiang)反(fan),在(zai)幹(gan)旱(han)條(tiao)件(jian)下(xia),植(zhi)物(wu)生(sheng)長(chang)緩(huan)慢(man),生(sheng)長(chang)量(liang)小(xiao),修(xiu)剪(jian)次(ci)數(shu)也(ye)少(shao)。在(zai)剛(gang)灌(guan)過(guo)水(shui)或(huo)土(tu)壤(rang)比(bi)較(jiao)潮(chao)濕(shi)情(qing)況(kuang)下(xia)不(bu)要(yao)修(xiu)剪(jian),此(ci)時(shi)修(xiu)剪(jian)的(de)草(cao)坪(ping)顯(xian)得(de)不(bu)平(ping)整(zheng),且(qie)修(xiu)剪(jian)後(hou)的(de)草(cao)屑(xie)易(yi)聚(ju)集(ji)成(cheng)團(tuan),覆(fu)蓋(gai)在(zai)草(cao)坪(ping)上(shang),會(hui)使(shi)坪(ping)草(cao)因(yin)光(guang)照(zhao)、通氣不足而影響生長。
修剪後的草屑應及時清理,否則不僅使草坪不美觀,而且會使下部坪草光照、通tong氣qi不bu足zu。草cao屑xie腐fu爛lan後hou會hui產chan生sheng一yi些xie有you毒du的de小xiao分fen子zi有you機ji酸suan,抑yi製zhi草cao坪ping根gen係xi活huo性xing,使shi草cao坪ping長chang勢shi變bian弱ruo。留liu下xia的de草cao屑xie還hai利li於yu雜za草cao孳zi生sheng,容rong易yi造zao成cheng病bing蟲chong害hai流liu行xing。但dan在zai高gao溫wen條tiao件jian下xia,若ruo草cao坪ping本ben身shen生sheng長chang健jian康kang,沒mei有you病bing害hai發fa生sheng,也ye可ke以yi把ba草cao屑xie留liu在zai草cao坪ping表biao麵mian,以yi減jian少shao土tu壤rang水shui分fen蒸zheng發fa。
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