Micro-climate of Silver Black Compound Film Cover and Its Application for Tomato Cultivation

The influence of silver black compound film was studied in the condition of greenhouse substrate cultivation and plastic greenhouse soil cultivation on sunlight, temperature, moisture and tomato cultivation in winter and summer. The results indicated that silver black compound film had the effect of reducing day temperature in summer, soil moisture conservation, decreasing moisture, increasing sunlight intensity near the ground level and controlling weed germination and growth. But the heat insulation effect of silver black film is inferior to that of common film. So silver black compound film is suitable for long-period fruit vegetables cultivation, especially for vegetables over-summer cultivation, which lead to better yield-increasing effect than open field or common film.