Clever use of colored plastic film effects

Agricultural films come in various colors, each with unique properties that influence light absorption and reflection. These differences affect crop growth, weed control, pest management, and soil temperature. By selecting the appropriate film color based on the specific needs of different crops, farmers can enhance yield, improve quality, and increase profitability. Blue films are particularly effective for crops rich in starch, such as wheat, rice, red mushrooms, and potatoes. They not only accelerate protein synthesis but also significantly improve crop quality. For example, when used to cover alfalfa, blue film increases yield by 5.2% compared to white agricultural film and reduces the growing period by 5–6 days. It also helps control spore production from black spot pathogens in cruciferous vegetables. Yellow films are ideal for crops like tea, celery, lettuce, dwarf legumes, and cucumbers. Using yellow film for tea cultivation can boost yield by 15–20% while improving quality. Similarly, it increases celery yields by 15–20%, and when used for lettuce, it promotes taller growth and extends the harvest period, enhancing economic returns. Red films are well-suited for crops such as rice, carrots, melons, tomatoes, and cucumbers. When used to cover rice seedlings, it supports better growth. Carrots grown under red film show a 10% increase in sugar content. Melon cultivation benefits from higher sugar and vitamin levels, with earlier market readiness by up to 20 days. Tomatoes mature 35–45 days faster, and cucumber seedlings grow more vigorously, leading to a 50–100% increase in yield. Purple films are commonly used in greenhouses during winter and spring. They help increase yield, improve fruit quality, and promote early maturation, especially for solanaceous crops and leafy vegetables. Black films are excellent for reducing soil moisture evaporation and suppressing weed growth. They are widely used in tea gardens and vegetable plots. Silver reflective films have cooling and light-reflecting properties, helping lower ground temperature. The reflected light from above encourages fruit tree growth and enhances fruit ripening and coloration. In low-sunlight areas, they can significantly boost yield. They also help repel pests like aphids and locusts. Hanging them on the north side of greenhouses improves lighting conditions and promotes earlier maturity. Silver-gray films are effective in repelling aphids and whiteflies, reducing pest pressure, conserving water, and controlling weeds. They are suitable for covering crops like cucumbers, watermelons, tomatoes, celery, spinach, and tobacco. Double-sided silver and black films are used with the silver side up and black side down. They offer multiple benefits, including aphid repulsion, disease prevention, and weed suppression. They are ideal for summer and autumn crops, especially those requiring heat-resistant and disease-resistant cultivation. The black and white double-sided film has white on top and black underneath. It is used for summer and autumn vegetable and melon cultivation, offering cooling, moisture retention, and weed suppression. This makes it an effective tool for heat-resistant and disease-resistant farming. Green films enhance green light transmission while inhibiting weed growth. They are mainly used for eggplant, strawberry, and melon crops. Eggplants grown under green film can see a 40–50% yield increase, and strawberries benefit with a 30–35% rise in production.

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