浙江省江山市的猕猴桃栽培面积达 2 333ｈｍ2 。近几年来 ,江山市的猕猴桃普遍出现不同程度的缺钾现象 ,严重的引起叶片早落 ,容易使果实发生日灼病。1　缺钾症状　猕猴桃缺钾的田间最初症状是萌芽时表现生长弱。严重缺钾时植株的叶片小、淡绿色 ,同时在老叶上出现轻微的叶缘失 Zhejiang Province Jiangshan kiwifruit cultivation area of ​​2 333hm2. In recent years, Jiangshan City, kiwifruit generally appear to varying degrees of potassium deficiency, causing severe leaf fall, easy to cause fruit sunburn. A potassium deficiency symptoms Kiwifruit potassium deficiency of the initial symptoms of the field when the performance of growth is weak. In severe potassium deficiency when the leaves of plants small, light green, at the same time there is a slight leaf margin on the old leaves