Changing or using small techniques in vegetable greenhouses can improve the growth conditions of vegetables in sheds and increase their yield and quality. 1, garden soil disinfection. Each square meter of garden soil is treated with 3--5 carbendazim or bromine methane, which can kill pathogens in the soil and prevent the occurrence of soil-borne diseases. 2, double coverage. Covering the membrane in the greenhouse or adding a small arch shed, covering the membrane can increase the soil surface temperature by 2°C. Adding a small arch shed can keep the temperature of the vegetable growing environment at 15°C or more. 3, improve the way of membrane. The use of iron wire instead of bamboo rafts, bamboo film, plastic rope instead of bamboo rafts as a climbing attachment, can reduce the degree of shading and improve photosynthetic efficiency. 4, improve irrigation methods. Using drip irrigation or submerged irrigation instead of traditional flood irrigation can reduce the relative air temperature in the shed by more than 10%. 5, use drop-free film. The drop-free film does not agglomerate water droplets, and the light transmittance can reach more than 98%. If you use a general film, you can apply metronidazole or daily cleaning on the film to eliminate water droplets on the film and enhance light. 6, sprinkle grass ash. In the greenhouse, hay ash is often thrown in, which can suppress the occurrence of diseases such as vegetable damping-off and blight, and promote the healthy growth of vegetables. 7, increase carbon dioxide. The burning of biogas in the shed increases the temperature of the shed and supplements the carbon dioxide gas. 8, set the light curtain. The light curtain on the back wall of the booth can enhance the light in the low-light area and increase the ground temperature by 2- 3°C. 9. Apply growth regulators. The correct application of exogenous plant growth hormone can promote plant growth and prevent flowering and fruit falling. 10, clever drug application. Using dust, smoke and other methods of application, there is no spray application method to increase the relative humidity of the air inside the shed, but also easy and convenient. OK, and the efficacy is stable and lasting.
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