1. Utilize temperature increase and moisture reduction, as well as high-temperature irrigation and drainage to control the occurrence of diseases: After noon when the temperature exceeds 30 degrees, open the ventilation holes to rapidly expel the moisture inside the greenhouse, and in the afternoon, use strong winds to exhaust moisture, ensuring the greenhouse is dry overnight, which is不利于 the proliferation of pathogens. This is an effective measure to control the occurrence of diseases.

2. Enhanced Disease Resistance through Grafted Seedlings: Grafted cultivation of cucumbers and eggplants can improve their disease resistance, particularly for cucumber wilt and eggplant yellow wilt, offering ideal control effects.

3. High Ridge and Wide Row Planting: Cucumbers can be planted with ridges at 0.3 meters high and a single row spacing of 1 meter. Tomato and berry crops can be planted with ridges at 0.9 meters high and a double row spacing of 1 meter. This reduces humidity at the ridge tops, increases ground temperature, enhances ventilation and light penetration, and minimizes plant wounds caused by human management, reducing the entry of pathogens and alleviating disease occurrence.

4. High-Temperature Chamber Sterilization: High-temperature chamber sterilization is commonly used for downy mildew and black star disease in cucumbers. Before sealing the chamber, it should be thoroughly watered, and the temperature should be set at 45 degrees Celsius. A second sterilization can be performed 5-7 days after the high-temperature chamber treatment, followed by another every 10-15 days, effectively controlling the occurrence of diseases; 1. Selecting Disease-Resistant Varieties: To ensure the quality of greenhouse vegetables, it is crucial to particularly choose varieties with strong disease resistance.

5. Enhanced application of agricultural fertilizers and phosphorus-potassium fertilizers: The base fertilizer for greenhouse vegetable crops should primarily be agricultural fertilizer. Generally, a greenhouse 100 meters long should apply 15 to 20 cubic meters of agricultural fertilizer per year, and during the production period, nitrogen, phosphorus, and potassium fertilizers should be applied as needed, ensuring a full-layer application.

6. Soil Disinfection and Greenhouse Sterilization: During the hot season of July and August, when there are no vegetables in the greenhouse, mix lime and straw with the soil to kill soil-borne pathogens. For pathogens adhering to the greenhouse film, frames, walls, and ground, before planting, for every 100 meters of the greenhouse, use 2 kilograms of sulfur powder mixed with an equal amount of dry sawdust, and ignite in 4-5 piles. Close the greenhouse for 24 hours after burning, ventilate for 7 days, and then plant or propagate seedlings.

7. Utilizing Automatic Subsurface Drip Irrigation: By employing automatic subsurface drip irrigation within greenhouse tunnels, there is no water evaporation on the ground, significantly reducing the humidity inside the tunnel. This effectively controls various pests and diseases that are triggered by high humidity.