The characteristics and functions of Ground Cover

04 Nov 2020



Ground cover is a kind of geotextile, also called woven geotextile. The difference between some ground cover and ordinary woven geotextile is that there is a green line at intervals. Its main function is to maintain the stability of the ground, water, soil and floor, with good drainage performance, to prevent weeds from breeding in nurseries, flower gardens, farms, and forestry, without damaging the soil, and this product has been treated with anti-ultraviolet rays and has good anti-aging properties. Performance, outdoor use can be up to 3 years, indoor or other materials can be used for more than 5 years.


Ground cover features:

1. High strength. Due to the use of plastic flat wire, it can maintain sufficient strength and elongation in wet and dry 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 yarns, so it has good water permeability.

4. Good anti-microbial property, no damage to microorganisms and insects.

5. Convenient construction. Because the material is light and soft, it is convenient to transport, lay and construct.

6. High breaking strength, good creep resistance and corrosion resistance.

7. Anti-purple and anti-oxidation can be used for 5 years under outdoor sunlight without oxidation or aging.


Ground cover functions:

1. Water permeability is an important technical indicator of Ground Cover

It refers to the amount of water permeated within a certain period of time per unit area, and reflects the ability of Ground Cover to seep through the surface. Ground Covers used in orchards usually require water permeability ≥5.0 L/(S?m2). Similar to the maintenance of non-woven fabrics, Ground Cover covers the vertical evaporation of soil moisture, allows the horizontal migration of water, increases the resistance to water evaporation, can inhibit the ineffective evaporation of soil moisture, and the inhibitory effect increases with the area covered by the grass protection cloth Increase and improve. Practice has proved that under no precipitation conditions, black plastic mulch and black Ground Cover can both increase the soil moisture content of 20 and 40 cm soil layers by 13% to 15%, and the two have the same moisture preservation effect. Agricultural drip irrigation, irrigation, and rain water can penetrate into the soil through the grass-proof cloth, increasing the soil moisture; the black plastic ground cloth is impermeable and impermeable, unable to penetrate the irrigation water into the soil. The practice of Ground Cover mulch shows that Ground Cover not only controls weeds but also reduces soil moisture evaporation, while increasing soil moisture.

2. Ground Cover can improve soil nutrient utilization

After laying the Ground Cover, the soil moisture of the tree tray is maintained, the root surface area of the plant increases, and the ability to absorb nutrients is enhanced. Farmers used the soil nutrient utilization rate of the cherry orchard after laying the black ground cover, and the 5-year test results showed that the plant N, P, K, Ca, Mg, B, Zn, Mn, Cu and other nutrients were significantly improved. Therefore, increase the fertilizer supply of the plants to ensure the rapid growth of the plant's nutritional needs.


3. Ground Cover can increase crop yield

After the ground cover is covered between the rows of the orchard, the soil moisture is guaranteed, and the nutrient utilization rate is also improved, and the yield of fruits and other crops will inevitably increase. Covering Ground Cover significantly increases the output of apple orchards, citrus orchards, and dragon fruit orchards, as well as the growth of seedlings, flower gardens and other fruit trees. A 6-year apple orchard study showed that after the black Ground Cover is covered, the nutrient content of the leaves changes with the different growing seasons; the tree vigor and yield are higher than the orchard without the Ground Cover.

4. Ground Cover can control weeds in orchard

The black Ground Cover can prevent direct sunlight from irradiating the ground, and its solid structure can prevent weeds from passing through the Ground Cover, thus ensuring that the Ground Cover can inhibit the growth of weeds. Especially in hilly orchards, where the ground is uneven, there are many rocks, plastic mulch, manual weeding and other measures are difficult to achieve. Ground Cover shows great advantages in controlling weeds. Many studies have shown that laying black Ground Cover between rows of orchards almost completely controls the growth of weeds, and has advantages over chemical or non-chemical weeding methods.

5. Ground Cover can prevent soil and nitrogen loss

The loss of soil nitrogen, especially nitrogen, is actually the result of the interaction between slope runoff and soil nitrogen. Mountain orchards with large slopes are prone to surface runoff under the erosion of rain, causing serious soil erosion and nitrogen loss. On the slopes with high vegetation coverage, soil erosion is relatively reduced due to root fixation. By laying Ground Cover, it is possible to avoid direct erosion of the soil by rainwater, maintain the soil and water, and prevent nitrogen loss