Agricultural mulch can play a role of warming, freezing, moisture, regulating light, saving water, weeding and controlling soil salinity, thus promoting early ripening and improving crop quality and yield. Agricultural film varieties are more, mainly the ordinary colorless transparent film, no drop film, black film, white film, purple film, green film, blue film, red film, infrared film, transfer film, double color film, silver-gray film, aluminum foil film, perforated film, emergence film, weeding film, heat preservation film, degradable film and anti-aging agricultural film.
Agricultural film has been applied to the cultivation of all kinds of crops and cash crops and the ground cover of early rice seedling. The characteristics of various types of agricultural plastic film and the use of colorless transparent agricultural plastic film transparent, high temperature, suitable for use in the spring and autumn season. High temperature in the film, for rice seedling raising and eggplant, sweet pepper, Agriculture Mulch watermelon and other good temperature crops
The role of agricultural film Mulching:
1, improve the soil. Agricultural film mulching in winter and spring season has improved the role of moderate moisture conservation. Agricultural film mulching soil topsoil temperature, generally more than open field to improve soil 2℃~3℃, can promote early emergence of vegetables, early development, Agriculture Mulch so that spring sowing or early planting 10-20 days. It should be noted that the different colors of agricultural film warming effect of different, to colorless film warming the best effect, and silver-gray film basic does not temperature. Agricultural film mulching in spring and autumn winter application more, Agriculture Mulch in summer to pay attention to cover the time, to prevent high temperature damage crops.
2, inhibit soil. Summer mulching film can inhibit soil temperature rise. If the use of white-black and silver-black double-sided film, and other materials covered, can inhibit the rise of soil.
3, improve fertilizer utilization rate, increase soil nutrition. Agricultural film mulching can prevent the sun and rain, so that fertilizer does not lose, at the same time can improve soil, Agriculture Mulch strengthen plant root absorption capacity. Agriculture Mulch Because of the improvement of soil temperature and water condition, the activity of microorganism is beneficial to the decomposition of soil organic matter and minerals and the increase of soil nutrients. Therefore, Agriculture Mulch agricultural plastic mulch can give full play to fertilizer efficiency.
4, improve the physical properties of soil. The soil bulk density ratio is not covered by the agricultural film mulching, the rainfall makes the oxygen content in the soil higher than the field, Agriculture Mulch which is beneficial to the growth of plant roots. At the same time, soil erosion and soil physical and chemical properties can be prevented because of the low water loss.
5, reduce water evaporation, there is a clear water conservation role.
6, increase the light effect. Transparent agricultural film itself and the reflection of small water droplets attached to the agricultural plastic film, so that the reflected light in the near surface increases, Agriculture Mulch effectively changing the light condition of the crop growing period, Agriculture Mulch increasing photosynthesis intensity and prolonging photosynthesis time, thus increasing the accumulation of light and yield and organic matter quality.
7, prevent soil salinization. Agriculture Mulch After the agricultural plastic film is covered, because the movement of the soil water is moved from the bottom to the top, the moisture content of the topsoil is high, which reduces the soil salt content, and thus plays the role of inhibiting salt.
8, inhibit the growth of weeds, reduce the risk of disease and pests. Because of the reflective characteristics of agricultural film, it has the effect of repelling aphids and reducing virus disease. The experiment shows that the agricultural film mulching can reduce the damage of the melon thrips, increase the yield and increase the economic benefit obviously. 9, promote early ripening of crops. Because of the adjustment of the agricultural film mulching to the underground part and the ground part of the plant and the promoting effect on the growth, Agriculture Mulch the cultivation vegetable enters the product formation period early, and increases the prophase yield of the spring cultivation crops, thus also increases the total output.
Second, the method of paving agricultural plastic film:
One man with his hand on the ground, the other put on the Earth, compaction, and then pull the agricultural film stretched to continue to put on the ground, continue to use soil compaction, Agriculture Mulch and then cover the side with soil。