葉ye麵mian積ji指zhi數shu與yu產chan量liang有you一yi定ding的de相xiang關guan性xing，就jiu是shi達da到dao一yi定ding的de產chan量liang，要yao求qiu一yi定ding的de葉ye麵mian積ji指zhi數shu。就jiu拿na番fan茄qie來lai說shuo
，曾zeng有you農nong業ye人ren士shi就jiu專zhuan門men做zuo過guo測ce量liang分fen析xi
，番fan茄qie葉ye麵mian積ji過guo大da過guo小xiao都dou會hui減jian產chan。要yao知zhi葉ye麵mian積ji指zhi數shu，首shou先xian要yao求qiu出chu葉ye麵mian積ji。由you於yu番fan茄qie葉ye形xing不bu規gui則ze
，而er使shi葉ye麵mian積ji難nan於yu測ce算suan。目mu前qian的de摘zhai葉ye求qiu積ji法fa不bu但dan麻ma煩fan，而er且qie會hui影ying響xiang番fan茄qie的de自zi然ran生sheng長chang發fa育yu。在zai如ru今jin的de研yan究jiu中zhong，更geng多duo的de人ren會hui直zhi接jie利li用yong葉ye麵mian積ji儀yi測ce量liang番fan茄qie麵mian積ji。
    葉ye麵mian積ji是shi影ying響xiang作zuo物wu產chan量liang的de一yi部bu分fen因yin素su，但dan也ye不bu能neng作zuo物wu產chan量liang下xia降jiang的de所suo有you因yin素su，在zai一yi定ding的de範fan圍wei內nei，作zuo物wu的de產chan量liang隨sui葉ye麵mian積ji指zhi數shu的de增zeng大da而er提ti高gao。當dang葉ye麵mian積ji指zhi數shu增zeng加jia到dao一yi定ding界jie限xian，會hui造zao成cheng光guang照zhao不bu足zu
，光guang合he效xiao率lv減jian弱ruo
，產chan量liang反fan而er下xia降jiang。曾zeng有you研yan究jiu人ren士shi對dui蘋ping果guo園yuan做zuo過guo調tiao查zha，發fa現xian其qi最zui大da葉ye麵mian積ji指zhi數shu一yi般ban不bu超chao過guo5，能維持在3~4較為理想。盛果期的蘋果園，生長期畝枝量維持在10~12萬條之間，葉麵積指數基本能達到較為適宜的指標。所以說，高產栽培首先應考慮獲得適當大的葉麵積指數。
    jieheshangshulianggeanlikeyikanchu

，yemianjizhishuqueshishiyingxiangzuowuchanliangdeyinsuzhiyi，jiezhuyemianjiyikaizhanxiangguanyanjiu
，tongyangyenengweitigaochanliangdailaikexuezhidao。

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