缺氮:下位叶黄化呈“V”字形,叶尖枯萎 缺磷:植株瘦小,茎叶呈紫红色,严重时老叶尖枯萎。穗畸形,结实率低,成熟延迟 缺钾:下位叶尖叶缘黄化,老叶枯萎,节间缩短,生育延迟 缺硼:穗轴短小,果穗畸形,籽粒不齐且稀疏 缺钙:叶缘呈白色斑纹并有锯齿状横向开裂,顶部叶片卷筒下弯呈弓状,相连叶片粘连 缺锌:花白苗,称花叶条纹病 缺铁:叶片脉间失绿,呈条纹花叶 |
桂公网安备 45010702000689号|桂ICP备14001967号-1|栽培技术|免责声明:本站内容由网友供稿,如有侵权请联系删除!|种植技术|农药价格|肥料价格|养鱼技术|茶叶知识|种地网
GMT+8, 2024-11-23 01:02 , Processed in 0.040885 second(s), 21 queries .
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.