果树护叶很重要

       叶片是植物进行光合作用的重要器官。果树全部干物质的90%来源于光合产物，只有10%以下来自土壤中的矿物质。植物通过叶片中的叶绿素，在光的参与下，将空气中吸收的二氧化碳和根系吸收的水分，合成有机物的过程，叫做光合作用。

 

guanghechanwudeduoshao，hedanweimianjineiyemianjixishu、yinianzhongyemianjibianhuadongtaiyoumiqieguanxi。yibanguoyuan，yemianjixishuxubaochizai3-4defanweinei。duoshuguoshumengyahoude10-14tiannei，yerouzuzhifenhuabuwanshan，xishouqiangdudayuguangheqiangdu，jingshuchulvchengfuzhi。zhiyoudangyepianzhangdaozhengchangyede1/2shi，caikaishiyoujingshuchu。

 

suizheyelingdezengjia、shuailao，guangheqiangduyousuizhijiangdi。yinci，weilezaoqijianligongnengwanbeideyouxiaoye，tigaoyedeguanghexiaolv，yingjiaqiangshutiyingyang，peiyuyouzhiye（yedaerlv、houerfaliang）。tongguoxiujian，baozhengchongzudeguangzhao，zhuyibingchonghaifangzhi，keyanzhangyedeshoumingheguanghezuoyongshijian。

 

guoshudeyingyanghaohuai，zhuyaoshikanyoujiwuzhidejileihezhucundeduoshao。yinci，yemianjiyueda，yueduo，qiguanghezuoyongsuochanshengdeyoujiyingyangyejiuyueduo，huayaxingchengdeyejiubaoman。suoyi，zaicaiguoshiyingzhuyibaohuhaoyepian，caiguohoucaiqucuoshibaohuyepianbushoubingchongweihai，yingjishipenbushajunjiheshachongjijiayifangzhi，qiemocaihoufangsongguanli。