天气预报15天查询> 其他> 桂花树叶子为什么会变红

桂花树叶子为什么会变红

更新时间: 2020-09-27 00:00:00     

原因缺磷:植株深绿,常呈红色或紫色,干燥时暗绿。茎短而细,基部叶片变黄,开花期推迟,种子小,不饱满;叶片由深绿色转为紫铜色,叶脉呈黄中带紫色。花芽形成困难,开花小而少且色淡,导致果实发育不良,甚至提早枯萎凋落。

防治方法:增施骨粉、鱼粕,家禽肥或过磷酸钙、磷酸铵、磷酸钾为磷、钾复合肥,一般用0.10%左右的水溶液作根外追肥。

关键词: 桂花 叶子 为什么

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-2041895/ | 耗时:0.1483 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2041895 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2041895 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2041895 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1074428,1981589,1564717,1066020,1100931,1361114,2411680,1365101,272618,1048280,1127435,1638226,1076319,3012436,2889854,1082411,1105657,1785143,2892481,1926821,1880543,2358173,314706,1119181,195346,1113706,394749,2679933,1096372,1070488) ORDER BY field (ArticleID,1074428,1981589,1564717,1066020,1100931,1361114,2411680,1365101,272618,1048280,1127435,1638226,1076319,3012436,2889854,1082411,1105657,1785143,2892481,1926821,1880543,2358173,314706,1119181,195346,1113706,394749,2679933,1096372,1070488)