The grass-proof cloth includes several black plastic woven cloths woven together vertically and horizontally to prevent sunlight from irradiating the weeds below through the grass-proof cloth on the ground, so that the weeds cannot perform photosynthesis, so as to prevent the growth of weeds, and at the same time, it can resist ultraviolet rays. And anti-mildew, with a certain strength and wear resistance, can not only prevent plant roots from drilling out of the ground, beautify the environment, improve labor efficiency and economic benefits, prevent environmental pollution, reduce the use of farmers, but also prevent insects and small animals invasion and growth.
1. The characteristics of grass-proof cloth
1. High strength, due to the use of plastic flat wire, it can maintain sufficient strength and elongation in dry and wet conditions.
2. Corrosion resistance, long-term corrosion resistance in soil and water with different pH.
3. Good water permeability, there are gaps between the flat wires, so it has good water permeability.
4. Good anti-microbial properties, no damage to microorganisms and moths.
5. The construction is convenient, because the material is light and soft, so the transportation, laying and construction are convenient.
6. High breaking strength, up to 20KN/m or more, good creep resistance and corrosion resistance.
2. Cost-saving advantages of grass-proof cloth
Some fruit farmers think that the weeds grow much longer, as long as more pesticides are sprayed, but spraying pesticides is not only harmful to crops, but also harmful to humans, and the cost of labor and pesticides is also high. The various costs of about 3 years, and the protection of the environment and the fruit farmers themselves. The following table can well reflect the advantages of grass-proof cloth.
3. Precautions for the use of grass-proof cloth
1. Lapping of materials
Since the ground cloth has a certain width limit, in order to ensure the continuity of the ground cloth during use, there must be a certain overlap in the width direction during the laying of the ground cloth, and the length of the overlap should not be less than 10 cm (indoor) or 20 cm (outdoor). When lapped indoors, it can be placed naturally, and it is best to use some additional fixing measures for outdoor laps.
2. Construction of laying cushion
A. In order to make the ground cloth achieve the effect of water permeability, good ventilation, smooth surface and certain surface strength, the laying base layer of the ground cloth should be treated. In general, a coarse sand layer of about 10 cm should be laid on the lower part of the ground cloth. Sand has the characteristics of firm aggregate structure, large pores, and small deformation under external force, so it is very suitable as the surface cushion of ground cloth. For the lower part of coarse sand, the treatment method should be determined according to the local soil conditions. If it is firm and has good water permeability, a coarse sand layer can be laid directly on the surface. Otherwise, a 10 to 15 cm gravel layer or pebble layer should be laid under the coarse sand to ensure the water permeability of the ground cloth base and the strength of the grass-proof cloth surface. , which is conducive to the placement of crops and the walking of workers.
B. The greenhouse floor is fully paved, and it is used in soilless cultivation of vegetables and flowers, crop pots, etc. The greenhouse floor is directly laid with ground cloth, and there is no need to build additional ground. The placement of crops can be accurately operated according to the marking lines on the ground cloth. .Sometimes, in order to protect the ground cloth or increase the amount of water attached to the ground cloth surface, the grower also lays a layer of fine sand about 20 mm on the ground cloth surface.
Fourth, the application of grass-proof cloth
Weed-proof cloth can be used in vegetable greenhouses and planting flowers to prevent the growth of weeds, without the use of herbicides and other harmful pesticides, so as to truly achieve the production of green food, and at the same time, the product can be recycled to achieve the purpose of waste reduction and environmental protection.