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浙江金华地区处于北纬29°左右的亚热带红壤区,在以往试验中钾肥效果并不那么明显。近年来由于生产发展,部分田块开始出现缺钾症状。如金华县开化大队一些稻田水稻分蘖后叶片逐渐由下向上焦黄干
The Jinhua area of Zhejiang Province is located in a subtropical red soil area about latitude 29 ° north and the effect of potash fertilizer in previous experiments was not so obvious. In recent years due to production development, some fields began to appear potassium deficiency symptoms. For example, some paddy rice in Jinhua County’s Kaihua Brigade gradually turn yellow from bottom to top after tillering