论文部分内容阅读
七十年代以来,随着塑料大棚栽培技术的引入,我省保护地栽培黄瓜的面积迅速扩大。实践证明,黄瓜栽培于塑料大棚内,明显表现出早熟和丰产。目前兰州地区大棚内黄瓜主栽品种“安宁刺瓜”虽有早熟、丰产等优点,但易感病、早衰和不耐热是它的致命弱点。特别是近几年枯萎病在黄瓜上普遍、大量发生,给生产造成很
Since the seventies, with the introduction of plastic greenhouse cultivation techniques, the area of protected cucumbers in our province has rapidly expanded. Practice has proved that cucumber cultivation in plastic greenhouse, obviously showed precocity and high yield. At present, the cucumber cultivars in the greenhouses in Lanzhou have the advantages of precocious and high yield, but their susceptibility to disease, premature aging and heat intolerance are its achilles heel. In particular, in recent years, the wilt disease is widespread in cucumbers and occurs in large quantities, causing a lot to the production