多雨或浇水后花生新叶发黄的原因及防治方法我们开封市是全省花生生产区，但土壤均属石灰性冲积土，在多雨或浇后积水处，常出现新叶发黄，严重者全株都是黄叶，其原因主要是土壤呈碱性反应，花生因吸收有效铁不足或受阻，致使花生缺铁而叶片发黄，严重时叶片变白，甚至枯... The rainy or watering peanut new leaves yellow causes and control methods Kaifeng City, the province is the peanut production area, but the soil is alluvial alluvial soil, in rainy or poured water, often appear new leaves yellow, In severe cases, the whole plant is yellow leaves, the main reason is alkaline soil reaction, peanut due to the absorption of iron deficiency or obstruction, resulting in peanut iron deficiency and leaves yellow, severe leaves whitish, or even dry ...