Is there any special significance and role in the processing of gold in Dongguan?
At present, the greenhouse enters a period of rest, which is an ideal time to strengthen management, enhance soil quality, and prepare for the next crop cycle. During this downtime, it's crucial to take proactive measures to maintain the health of the growing environment.
After harvesting crops, it's important to promptly remove all plant residues. This helps eliminate hiding places for pests and pathogens. Vegetables, fallen leaves, weeds, and any other debris should be cleared from the greenhouse and transported outside, away from the structure. This practice ensures the soil remains clean and free from contamination. Once the area is cleared, the soil should be exposed to sunlight by tilling it to a depth of 30–40 cm, which aids in natural disinfection and improves soil structure.
Following site preparation, a thorough disinfection process should be carried out inside the greenhouse. Common methods include sulfur fumigation or using smoke agents such as 45% chlorothalonil or 30% kai ling smoke. The greenhouse should be sealed tightly and left to heat up, which effectively kills harmful microorganisms and pests.
Over time, continuous use of solar greenhouses can lead to issues like secondary soil salinization. To address this, it's essential to implement soil improvement techniques during the summer rest period. One effective approach is to apply fermented straw and organic fertilizers. Another method involves mixing 20 kg of corn flour per acre with 1.2–2 kg of brown sugar and water to create a paste. After high-temperature fermentation for about 10 days, adding biological fertilizer mixed with water can significantly improve soil fertility and microbial activity.
Additionally, using shade nets or planting vines on the top of the greenhouse can help reduce temperatures. A sprinkler system can also be used to wash away accumulated salts, further improving soil conditions for future planting. These practices not only restore soil health but also contribute to sustainable and productive farming in the long run.
Medical Stainless Steel Clean Door
Medical Stainless Steel Clean Door is a kind of door specially used in hospital operating rooms, clean rooms and other places, it is made of high-quality stainless steel materials, with anti-corrosion, anti-rust, anti-bacteria, easy to clean and other characteristics. This kind of door has smooth surface, no burrs, no gaps, no bacteria, and meets the requirements of clean rooms.
The door of the medical stainless Steel Clean Door adopts a sandwich structure and is filled with high-density polyurethane foam, which has good thermal insulation and sound insulation effect. At the same time, the door is equipped with a stainless steel skeleton to improve the strength and stability of the door. The door frame is welded with stainless steel, strong structure and not easy to deform. High-quality sealing strips are used between the door and the door frame to prevent dust, bacteria and other foreign objects from entering the clean area.
The medical stainless steel clean door is also equipped with a variety of opening methods, such as manual, automatic, induction, etc., convenient for users to choose according to their needs. This kind of door also has the characteristics of beauty, durability and safety, and is one of the necessary equipment in the clean room of the hospital.
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