论文部分内容阅读
大棚黄瓜霜霉病简易防治法高温可抑制病菌的发育。利用这个原理，大棚可采取此方法，即睛天中午密闭大棚（棚内挂温度表，其高度与黄瓜生长点平行）．使棚温自然上升至生长点处温度达４２～４５℃，维持２小时，然后放风，慢慢降温。处理一次可控制７～１０天。如果温度低...
Cucumber downy mildew in the greenhouse simple prevention and treatment of high temperature can inhibit the development of bacteria. Use this principle, the greenhouses can take this approach, that is, at noon day closed confined greenhouse (studio temperature table, the height of the cucumber growth point parallel). The shed temperature rose naturally to the growth point temperature of 42 ~ 45 ℃, for 2 hours, then the wind, slowly cooling. Treatment can be controlled for 7 to 10 days. If the temperature is low ...