不(bu)同(tong)植(zhi)物(wu)都(dou)有(you)不(bu)同(tong)大(da)小(xiao)的(de)葉(ye)片(pian)
，如(ru)果(guo)現(xian)在(zai)有(you)一(yi)項(xiang)研(yan)究(jiu)工(gong)作(zuo)需(xu)要(yao)測(ce)量(liang)葉(ye)片(pian)的(de)麵(mian)積(ji)，我(wo)們(men)又(you)應(ying)該(gai)如(ru)何(he)去(qu)做(zuo)呢(ne)
？過(guo)去(qu)，人(ren)們(men)通(tong)常(chang)會(hui)先(xian)借(jie)助(zhu)皮(pi)尺(chi)量(liang)出(chu)葉(ye)片(pian)的(de)長(chang)和(he)寬(kuan)，再(zai)用(yong)公(gong)式(shi)計(ji)算(suan)，但(dan)對(dui)於(yu)大(da)多(duo)數(shu)植(zhi)物(wu)葉(ye)片(pian)來(lai)說(shuo)，其(qi)形(xing)狀(zhuang)是(shi)不(bu)規(gui)則(ze)的(de)

，很(hen)難(nan)準(zhun)確(que)量(liang)出(chu)它(ta)們(men)的(de)長(chang)、寬，而且測量效率肯定很低。而如今人們隻需借助便攜式葉麵積測定儀就可快速
、準確的測量出葉片的麵積，操作也非常簡便，將玉米葉片置於測量掃描區
，按下指模，幾秒鍾就能得出結果。

    nameyourenkenenghuiwenle
，yongbianxieshiyemianjicedingyiceliangchulaideshujuyouyoushenmeyongne
？qishi
，chulepanduanzhiwudeshengchangzhuangkuangwai，hainengbangzhurenmenquedingzuowudezhongzhimidu。jiunayumizhongzhilaishuo
，tongguofenxibutongzhongzhimiduduiyumiyemianjizhishujichanliangdeyingxiang
，laiweishaixuandangdiyumizuiyouzhongzhimidutigongcankaoyiju，bingquedingyumidezuijiazhongzhimidu。
    一般都會在玉米的拔節期、吐絲期
、guanjiangqihelashuqiyongbianxieshiyemianjicedingyizuoceliangjilu，youcedingjieguobiaoming，butongzhongzhimiduduiquntiyemianjidezongtibianhuajibenyizhi，yemianjizhishuchengdanfengquxianbianhua，suizheshengyuqijinchengxianzengda，zaitusiqidadaozuidazhihouhuanmanxiajiang。geshengyushiqi，yemianjizhishudousuizhongzhimidudezengjiaershenggao，bingqiedimiduquntijiaogaomiduquntibofengpinghuan
，congbajieqidaotusiqi，butongzhongzhimidujianyemianjizhishusuishengyuqijinchengchazhizengda，congtusiqizhilashuqi
，butongzhongzhimiduquntijianyemianjizhishusuishengyuqijinchengchazhisuoxiao。