關於植物葉片的兩種研究

zhiwuyepiandedaxiaoheyepianzhongyelvsuhanliangdeduoshao，shiwomennongyelingyujingchangyanjiudejiaodian。qizhongyelvsuhanliangdeduoshao，guanxizhezuowudeguanghezuoyong，guanghezuoyongshijileiyoujiwudeguocheng，yinciruguoyaoyanjiuzuowudeguanghezuoyong
，jiubixucedingzhiwuyepiandeyelvsuhanliang。yezhengyinweici
，zhiwudeyelvsuhanliangyuzuowuchanliangxixixiangguan。erzhiwudeyepianmianjidaxiao，zeyuyemianjizhishuyouguan。yemianjizhishushiyikuaidishangzuowuyepiandezongmianjiyuzhandimianjidebizhi。zaiyidingdefanweinei，zuowudechanliangsuiyemianjizhishudezengdaertigao。yinci
，duiyuzuowudechanliang
，yemianjiheyelvsuhanliang
，shilianggefeichangguanjiandeyinzi。

植物葉綠素含量的測定：葉綠素含量測定有分光光度法、手shou持chi葉ye綠lv素su儀yi。一yi般ban的de，在zai野ye外wai

，我wo們men使shi用yong儀yi器qi來lai快kuai速su測ce定ding植zhi物wu葉ye綠lv素su含han量liang。手shou持chi葉ye綠lv素su儀yi是shi我wo們men的de很hen好hao選xuan擇ze。手shou持chi葉ye綠lv素su儀yi體ti積ji小xiao巧qiao，能neng夠gou直zhi接jie放fang在zai口kou袋dai
，拿na到dao田tian間jian。手shou持chi葉ye綠lv素su計ji能neng夠gou測ce定ding植zhi物wu的de葉ye綠lv素su相xiang對dui含han量liang或huo者zhe綠lv色se程cheng度du。葉ye綠lv素su計ji的de原yuan理li是shi通tong過guo測ce量liang葉ye片pian在zai兩liang種zhong波bo長chang範fan圍wei內nei的de透tou光guang係xi數shu來lai確que定ding葉ye綠lv素su含han量liang。另ling外wai
，葉ye綠lv素su計ji還hai有you一yi個ge功gong能neng，它ta除chu了le能neng夠gou測ce定ding我wo們men需xu要yao的de葉ye綠lv素su含han量liang數shu據ju，同tong時shi還hai能neng夠gou提ti供gong氮dan肥fei的de指zhi導dao。據ju研yan究jiu統tong計ji，通tong過guo手shou持chi葉ye綠lv素su計ji的de測ce定ding，指zhi導dao我wo們men實shi際ji的de施shi肥fei，能neng夠gou在zai保bao證zheng產chan量liang不bu減jian少shao的de情qing況kuang下xia
，減jian少shao10%的氮肥施用量
，大大提高經濟效益。

植物葉片麵積的測定：植物葉麵積測定有多種方法：數格子法
、掃描儀法
、數碼相機法
、yemianjicedingyifa。qizhongshuyemianjicedingyizuijiandanfangbian。yemianjicedingyiyouduozhongkuanshi，qizhonghuotiyemianjiyishizuijingquede
，danshitaduiyepianhuizaochengsunshang，taxuyaonizhaixiayepianranhoujinxingceliang，danshitaduiyepiandaxiao、顏色、厚(hou)度(du)等(deng)都(dou)沒(mei)有(you)要(yao)求(qiu)，能(neng)夠(gou)測(ce)定(ding)諸(zhu)如(ru)芭(ba)蕉(jiao)葉(ye)等(deng)的(de)葉(ye)片(pian)麵(mian)積(ji)大(da)小(xiao)。葉(ye)麵(mian)積(ji)測(ce)定(ding)儀(yi)在(zai)農(nong)業(ye)中(zhong)使(shi)用(yong)也(ye)非(fei)常(chang)廣(guang)泛(fan)
，因(yin)為(wei)其(qi)實(shi)用(yong)性(xing)
，而(er)且(qie)測(ce)量(liang)方(fang)便(bian)

，精(jing)確(que)度(du)高(gao)。一(yi)般(ban)如(ru)數(shu)格(ge)子(zi)法(fa)費(fei)時(shi)又(you)誤(wu)差(cha)大(da)，現(xian)在(zai)基(ji)本(ben)被(bei)淘(tao)汰(tai)。另(ling)外(wai)
，葉(ye)麵(mian)積(ji)測(ce)定(ding)儀(yi)測(ce)量(liang)速(su)度(du)非(fei)常(chang)快(kuai)，隻(zhi)要(yao)你(ni)將(jiang)葉(ye)片(pian)鋪(pu)好(hao)放(fang)在(zai)感(gan)光(guang)板(ban)上(shang)，2秒鍾就能夠出結果。適合多葉片測定。