Prevention of diseases and insect pests of winter cucumber in solar greenhouse
Because the greenhouse is relatively confined and the humidity is relatively high, it is easy to produce a variety of pests and diseases. Therefore, prevention should be the main method and there should be no thought of remedying the disease. In general, a true leaf of a cucumber begins to spray once every 4-5 days, up to a maximum of 7 days, especially before watering. It is generally used in fungicides such as chlorothalonil, mancozeb, and DuPont Kelu to create better economic benefits.
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Glass Venlo Greenhouse is Spire-type glass design, design and installation of windows when more convenient and easy. Its roof slope andle can be appropriately according to the local real climate change the environment.
In Venlo greenhouse, foundation is made of reinforced concrete and the side wall is made of brick or reinforced concrete plate. the steel frame always use hot dip galvanized light steel. Roof beam adopts horizontal girder structure and using herringbone connection. The horizontal girder bears 2 or more roofs, which is made of aluminum alloy. This material is used as roof structure material and also glass inlay material. Other beams using gutter style to minimize the section. Delighting material of the roof and side wall using 4 mm thick float glass.
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