施用稀土微肥,除补充农作物的微量营养外,还能增加作物对氮、磷、钾的吸收与转化,提高生理活性,有利光合作用,从而提高作物产量。近几年,国内许多单位试验表明,在常规施肥管理的条件下,合理施用稀土,能促进蔬菜增产。1987年,我们在本区5个试验点对番茄、芹菜和大白菜进行了喷稀土微肥试验,结果表明,可使番茄改善品质,提高含糖量0.18％,提高坐果率20％,提前着色5—6天, Application of rare earth fertilizer, in addition to supplement the micronutrients of crops, but also increase crop absorption and transformation of nitrogen, phosphorus and potassium, improve physiological activity, favorable photosynthesis, thereby increasing crop yield. In recent years, many domestic units show that under the conditions of conventional fertilizer management, the rational application of rare earth can promote the increase of vegetables. In 1987, we experimented on the fertilization of tomato, celery and Chinese cabbage with five fertilizers on tomato, celery and Chinese cabbage. The results showed that tomato could improve the quality, increase the sugar content by 0.18%, improve the fruit setting rate by 20% and pre-coloring 5-6 days,