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我地菜农种植的西红柿当结满果实开始成熟时,其下部的叶子就开始干枯,没等果实全部成熟,整株西红柿就全部枯死,造成了严重的经济损失。经分析,我们认为西红柿患有微量元素缺乏症。今年春天,在塑料大棚内的西红柿株高约40厘米时,当揭去大棚2—3天,有的顶梢开始发蔫。为此,我们对西红柿苗喷施了0.05％的硫酸锌+0.01％的硫酸铜混合微肥,几天后,西红柿苗全部恢复了生机,长得一天比一天壮实。当大部分西红柿结果后,我们又进行了第二次施肥,并开始观察其下部的叶子,发现没有任何干枯的迹象,最后产生了意想不到的结果:在试验田中所有的西红柿植株从开始采摘到全
When the tomatoes planted in the vegetable growers begin to mature when the fruit is ripe, the leaves in the lower part begin to dry up, and the whole plant tomatoes are all dead before the other fruits mature, resulting in serious economic losses. After analysis, we believe that tomatoes suffer from micronutrient deficiencies. This spring, tomatoes in plastic shed about 40 cm tall, when exposed to the greenhouse for 2-3 days, some top began to sting. To this end, we spray tomato seedlings 0.05% zinc sulfate + 0.01% copper sulfate mixed fertilizer, a few days later, all the vitality of tomato seedlings, grow strong day by day. When most of the tomatoes had the result, we did a second fertilization and started to observe the leaves in the lower part and found no sign of any dryness, which led to the unexpected result: in the experimental field all the tomato plants were picked from the beginning all