请教，君子兰的叶子怎么发黄了！

毛茛

<><FONT color=#ff0000>新长得叶子发黄可能是缺肥,或没光照,叶上的黄斑是病害,用杀菌剂防治</FONT></P>

pengpeng

<><img src="attachments/dvbbs/2006-8/200682010134247498.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-8/200682010134247498.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<><FONT color=#ff0000 size=3>请教大家，新长的叶子都发黄了，是什么原因？<br></FONT><img src="attachments/dvbbs/2006-8/200682010135695816.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-8/200682010135695816.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br><img src="attachments/dvbbs/2006-8/200682010141042504.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-8/200682010141042504.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br></P>

[此贴子已经被作者于2006-8-20 10:16:16编辑过]

pengpeng

好像不是缺肥,一到夏天就发黄,是不是太阳晒的.[em06]

hamhjx

<>君子兰夏天不能晒太阳的,温度最好不要超过30度,夏天要多喷雾降温,少浇水,不上肥</P>
[em01][em01]

pengpeng

谢谢各位了

大刀

楼主是不是最近给君子兰换土了.

pengpeng

没有呀

大刀

我看着像是用了没有腐熟的土或肥.

lao王

杀菌

勤劳的鼹鼠

<>新叶底部的黄斑是烂了还是干枯了?</P>
<>如果是烂了,是不是喷水时叶窝存水了?</P>