yelvsushizhiwushengchangfayudezhongyaozuchengbufen
，womenchangjiandelvsezhiwujishucaizhongdouhanyouyelvsu，danbutongzhiwuyepianzhongdeyelvsuhanliangyeyousuobutong，yiwomenshiyongdexilanhuaweili，xilanhuaziyuanfengfu，qiyezizhongdeyelvsuhanliangyue0.3%。weijinyibulejiexilanhuayepianyelvsuhanliangyuchanliangzhijiandeguanxi，youyanjiurenyuanduixilanhuatongbuweideyepianjinxinglejianceshiyan，weijianliyigekuaisuqiejingzhundefangfalaicedingxilanhuazhongdeyelvsuhanliang，gongzuorenyuancaiyongleSPAD502葉綠素儀
，tashitongguoceliangyezizaihongsequyuhejinhongwaiquyudexishoulvlaiquedingyepiandangqianyelvsudexiangduishuliang

，xiaoqiaobianyuxiedai，shimuqianyingyongjiaoguangdezhuanyongyiqi。

    為了解西蘭花葉片葉綠素含量與產量間的關係，試驗人員利用SPAD502葉綠素儀對處理過的西蘭花同部位葉片進行測定
，通過測土施肥、純有機肥、純化肥、常規、空白五個處理西蘭花葉片平均SPAD值分析。結果表明：田間西蘭花長勢除空白處理植株明顯矮
、花球小外，其它處理長勢良好。
    SPAD502葉綠素儀可以即時測量出西蘭花葉片中的葉綠素相對含量或“綠色程度”
，葉ye片pian中zhong的de葉ye綠lv素su含han量liang能neng很hen好hao的de反fan映ying出chu西xi蘭lan花hua的de生sheng長chang狀zhuang況kuang，長chang勢shi良liang好hao的de西xi蘭lan花hua葉ye子zi會hui含han有you更geng多duo的de葉ye綠lv素su，葉ye綠lv素su的de含han量liang又you與yu葉ye片pian中zhong氮dan含han量liang有you著zhe密mi切qie關guan係xi
，因yin此ci測ce定ding西xi蘭lan花hua葉ye綠lv素su含han量liang值zhi還hai能neng說shuo明ming它ta真zhen實shi的de硝xiao基ji需xu求qiu量liang，通tong過guo這zhe種zhong儀yi器qi能neng更geng好hao的de幫bang助zhu我wo們men科ke學xue用yong肥fei，提ti高gao氮dan的de利li用yong率lv。