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如何改变蔬菜传统的育苗方式,适应现代化生产的需要,是蔬菜科学研究方面的重要课题。目前国内蔬菜育苗,苗龄长,病害重,育苗设备多,不利于实现育苗专业化、机械化和自动化。国外近年来,蔬菜无土栽培和二氧化碳施肥新技术发展迅速。1979年,我们对青椒进行了无土气肥育苗试验,初见成效。无土气肥育苗具有缩短苗龄,根系发达,净光合率高,抗逆性强,苗壮病害少等优点。现将试验结果,初报如下:
How to change the traditional vegetable breeding methods to meet the needs of modern production is an important issue in vegetable science research. At present, the domestic vegetable nursery, seedling age, heavy disease, nursery equipment, is not conducive to nurturing specialization, mechanization and automation. In recent years abroad, soilless culture of vegetables and carbon dioxide fertilization has developed rapidly. In 1979, we conducted a green pepper fertilizer-free seedling trials, initial success. Soilless fertilizer seedling has the advantages of shortening seedling age, developed root system, high net photosynthetic rate, strong resistance, less seedling disease and so on. The test results are as follows: