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1987—1988年,我们先后在辽宁省农科院、沈阳市东陵区汪家乡发现大棚黄瓜、露地黄瓜及大棚西红柿发生缺锌症,这两种作物发病来势猛,仅1—2天90％以上的植株发病。 黄瓜缺锌症状:在叶脉间的叶片组织上出现白色斑块,严重时叶片全变白色,下部叶片逐渐枯死脱落,新生茎节间缩短,叶呈簇状,聚帜在一起。新生叶片小,浓绿,皱缩而脆,雌花霉烂,雄花脱落,无收成。
From 1987 to 1988, we found zinc deficiency in greenhouse cucumbers, open-field cucumbers and greenhouses in Liaoning Province Academy of Agricultural Sciences and Wangjia Township, Dongling District, Shenyang. The incidence of these two crops was very high, with only 90% The above plant disease. Cucumber zinc deficiency symptoms: white patches appear in the leaf tissue between the veins, the leaves become completely white in severe cases, the lower leaves gradually withered off, the new stems shortened between the internodes, clusters of leaves, gathered together. Fresh leaves small, dark green, shriveled and brittle, female flowers rotten, male flowers off, no harvest.