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塑料大棚黄瓜因施肥不合理,使土壤养分不协调、理化性质发生不良改变,出现一些生理病害。黄瓜酸性缺铁症就是其中较严重的一种。一、病害症状黄瓜苗定植后,如果发生酸性缺铁症,植株生长逐渐减慢、新生幼叶开始轻微皱曲、叶色黄绿相间,和黄瓜花叶病毒病初期症状相似。易被误认为是黄瓜病毒病。两者的区别是:酸性缺铁症是一片一棚的发生,相同叶龄的叶片表现一样:而病毒病发病很难同
Plastic greenhouse cucumber due to unreasonable fertilization, the uncoordinated soil nutrients, physical and chemical properties of adverse changes, there are some physiological diseases. Cucumber acidic iron deficiency is one of the more serious one. First, the symptoms of disease Cucumber seedlings planted, if the occurrence of acidic iron deficiency, plant growth gradually slowed, young foliage began to slightly wrinkled, yellow-green leaves and white, and cucumber mosaic virus disease early symptoms similar. Easily mistaken for cucumber virus disease. The difference between the two is: Acidic iron deficiency is the occurrence of a shed, the same leaf age leaves the same performance: the virus disease is difficult to