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近几年,采用塑料大棚进行反季节栽培,在生产上应用日益广泛了。无论对补充蔬菜市场品种,或对增加农民收入来说,都收到了明显的效果。但随着大棚番茄的扩展,番茄畸形果的发生经常困扰着菜农们。据我们调查,常见的畸形果有多心室畸形果、空洞果、裂果、脐腐果、日灼果等。究其产生畸形果的原因:一是苗期氮肥施用过多,地上部分营养生长过旺,冠根比例失调;二是番茄花芽分化前后,遇到连续几天6～8℃低温,呼吸作用所消耗的养分相对减少,花中养分积累增多,心皮数形成较
In recent years, the use of plastic greenhouses against the season cultivation, the production of increasingly widespread use. Whether it is to supplement the vegetable market variety or to increase the income of peasants, it has received obvious results. However, with the expansion of greenhouse tomatoes, tomato malformations often plague vegetable farmers. According to our investigation, common malformations have multiple ventricular malformation fruit, hollow fruit, cracked fruit, umbilical rot fruit, sunburn and so on. The reasons for the deformity of the fruit: First, excessive use of nitrogen fertilizer at seedling stage, vegetative growth over the top of the ground, the proportion of crown root disorders; second tomato flower bud differentiation before and after the encounter several days 6 ~ 8 ℃ low temperature, respiration Relatively reduced consumption of nutrients, increased accumulation of nutrients in the flower, the formation of carpels more