Double-layer mulching film suitable for citrus growth

Abstract

The utility model provides a double-layer mulching film suitable for citrus growth, which comprises an upper-layer film and a lower-layer film, the upper-layer film is the upper-layer film, the lower-layer film is the lower-layer film, the upper-layer film and the lower-layer film are overlapped up and down, and the edge of the upper-layer film and the edge of the lower-layer film are detachably adhered together. The upper-layer film and the lower-layer film are detachably adhered together, during daily field operation, the upper-layer film and the lower-layer film are separated, the upper-layer film is rolled up, only the lower-layer film is used for covering, the upper-layer film is unfolded 2 months before ripening to reflect light so as to promote coloring and improve quality, and after fruits are ripe and picked, the double-layer film is rolled up to a planting row, so that the yield of the fruits is increased. The positive fertilizer is applied, and normal operation is not affected. The double-layer film disclosed by the utility model can meet the requirement of annual production of citrus, and achieves the functions of inhibiting weeds, reflecting light, preventing water, prolonging the service life of the double-layer film and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ground films, in particular to a double-layer ground film suitable for growing citrus. Background Art

[0002] Citrus is a perennial plant that prefers warm and humid climates and is widely planted in tropical and subtropical areas. my country is the most important citrus cultivation area in the world, and its cultivation area and output rank first in the world. However, my country's citrus industry has problems such as low scale, backward management level, and uneven fruit quality.

[0003] Film coating is an important practical technical measure commonly adopted in the process of citrus cultivation to promote fruit coloring, enhance fruit flavor, and control weed growth. The utility model with announcement number CN203072517U discloses a multifunctional composite ground film, which is made into a double-layer two-color composite film by co-extrusion of an extruder. When in use, the silver-gray color faces upward and the black color faces downward. When the film is used in spring, due to the heat insulation effect of the upper film, the ground temperature rises slowly, affecting the growth of the citrus root system; at the same time, the upper film is a mirror reflection. After laying, it may accelerate the increase of ambient temperature in high temperature and strong light weather, causing the temperature in the citrus tree to be too high, the leaves to wilt, and the normal expansion of the fruit to be inhibited, and the fruit will fall due to air burn and drought stress, affecting the commercial quality of the fruit; in addition, due to the drainage effect of the upper film, if the upper film is used in spring and spring drought occurs, it is easy to cause physiological drought artificially, which increases irrigation pressure and management costs. Therefore, a double-layer ground film suitable for the growth of citrus throughout the year is needed. Utility Model Content

[0004] In view of this, the utility model proposes a double-layer mulch film suitable for the year-round growth of citrus.

[0005] The technical solution of the utility model is implemented as follows: the utility model provides a double-layer ground film suitable for citrus growth, including an upper film and a lower film, the upper film is an upper film, the lower film is a lower film, the upper film and the lower film overlap up and down, and the edge of the upper film and the edge of the lower film can be detachably glued together.

[0006] On the basis of the above technical solution, preferably, Velcro is provided at the edges of the opposite surfaces of the upper film and the lower film, and the upper film and the lower film are adhered together by the Velcro.

[0007] On the basis of the above technical solution, preferably, a plurality of ground nail holes are provided at intervals at the edges of the upper membrane and the lower membrane, and the ground nail holes of the upper membrane and the lower membrane correspond to each other up and down.

[0008] On the basis of the above technical solution, preferably, a plurality of planting openings are provided at intervals at both ends of the upper membrane and the lower membrane in the width direction, and the planting openings of the upper membrane and the lower membrane correspond to each other up and down.

[0009] On the basis of the above technical solution, preferably, the planting opening is semicircular with a radius of 10 to 15 cm, and the distance between two adjacent planting openings is determined according to the distance between citrus plants.

[0010] On the basis of the above technical solution, preferably, a plurality of ties are provided on a side of the upper film close to the lower film, and the connection points between the plurality of ties and the upper film are linearly distributed and spaced apart along the length direction of the upper film.

[0011] On the basis of the above technical solution, preferably, the lace is located at the edge of the upper film or close to the center line of the upper film.

[0012] On the basis of the above technical solution, preferably, the upper film is a moisture-permeable PU silver reflective film.

[0013] On the basis of the above technical solution, preferably, the lower membrane is an air-permeable and water-permeable polyethylene black membrane.

[0014] On the basis of the above technical solution, preferably, the widths of the upper film and the lower film are determined according to the row spacing of citrus fruits.

[0015] The double-layer mulch film suitable for growing citrus fruits of the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The upper film and the lower film of the utility model overlap each other, and the edge of the upper film and the edge of the lower film can be detachably pasted together. During daily field operations, the upper film is rolled up and only the lower film is used for covering. This can accelerate the recovery of ground temperature in spring and inhibit the vigorous growth of ground weeds in summer. The upper film is only used 2 months before maturity to promote the intensity and efficiency of photosynthesis in the middle and lower parts of the trunk, promote the accumulation of dry matter, promote the coloring of the peel, and increase the sugar content of the fruit. During the growing season, the lower film can effectively inhibit the growth of weeds and reduce the impact of weeds near the tree circle on nutrient consumption and citrus growth. After the fruit is ripe and picked, the double-layer film can be rolled to the planting row and "revitalizing fertilizer" can be applied without affecting normal operations. The double-layer film of the utility model has the advantages of being laid once and used for many years, reducing labor costs, and being suitable for the growth of citrus throughout the year.

[0017] (2) The utility model is provided with ground nail holes for fixing the double-layer membrane, which facilitates the insertion and removal of the ground nails without causing the membrane to tear, and also avoids the influence of the soil pressing membrane on the smoothness of the reflective membrane.

[0018] (3) The utility model is provided with planting holes, and the double-layer ground film between rows is spliced ​​and covers each other by 5 cm, which can effectively reduce the growth of weeds near the tree circle and high-temperature gas burns. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural diagram of a double-layer mulch film suitable for growing citrus fruits according to the utility model;

[0021] Figure 2 This is a rendering of the double-layer mulch film suitable for citrus growth according to the utility model.

[0022] In the figure, 1-upper membrane, 2-lower membrane, 3-Velcro, 4-ground nail hole, 5-implantation port, 6-tie. DETAILED DESCRIPTION

[0023] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the directions or positional relationships indicated by "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific direction, be constructed and operate in a specific direction. In addition, the meaning of "plurality" is two or more.

[0025] The utility model provides a double-layer mulch film which is easy to operate, easy to lay, durable and suitable for growing citrus in different seasons, such as Figures 1-2 As shown, the double-layer ground film includes an upper film 1 and a lower film 2. The upper film 1 is made of PU material and is a moisture-permeable silver reflective film. The lower film 2 is made of polyethylene material and is a breathable and water-permeable black film. The upper film 1 and the lower film 2 are rectangular, and the length and width are the same. The upper film 1 and the lower film 2 overlap each other, and the edge of the upper film 1 and the edge of the lower film 2 can be detachably pasted together.

[0026] The utility model uses a detachable pasting method to stick the upper film 1 and the lower film 2 together, combining the different functions of the two ground films. The upper film can be rolled up or put down according to actual production needs to achieve the functions of grass suppression, reflection, waterproofing, mildew resistance, firmness and durability.

[0027] Specifically, the upper film 1 and the lower film 2 are attached together by double-sided adhesive tape or Velcro, preferably Velcro. Specifically, Velcro 3 is provided at the edge between the upper film 1 and the lower film 2, and the upper film 1 and the lower film 2 are connected by Velcro 3.

[0028] There are three ways to stick the Velcro 3: stick on all four sides (see Figure 1 ), only the length direction of the double-layer film is pasted (see Figure 2 ) or both sides in the width direction.

[0029] A common way to fix ground film is to fix it by covering the edge with soil and pressing the film. This will affect the smoothness of the upper film 1 and the coloring of citrus fruits. For this reason, the utility model provides a plurality of corresponding ground nail holes 4 at intervals on the edges of the upper film 1 and the lower film 2 to facilitate the insertion and removal of the ground nails without causing the film to tear.

[0030] Both ends of the upper film 1 and the lower film 2 in the width direction are provided with a plurality of corresponding planting openings 5, and the shape of the planting openings 5 ​​is set to be semicircular, which fits the shape of the tree trunk. The radius of the planting opening 5 is 10 to 15 cm, and the distance between two adjacent planting openings 5 ​​is determined according to the plant spacing. The planting openings 5 ​​correspond to the citrus tree trunks, which can effectively reduce the growth of weeds and high-temperature air burns near the tree tray. At the same time, the planting openings 5 ​​are used to achieve seamless splicing of double-layer membranes between rows, prevent rainwater from infiltrating the tree tray, and achieve the effect of covering the entire garden. Compared with general ground films that only cover the rows, the double-layer membrane of the utility model has better light-enhancing effect and better water control effect.

[0031] Specifically, when the upper film 1 is rolled up, in order to prevent the film from spreading, a plurality of ties 6 are provided on one side of the upper film 1 close to the lower film 2, so as to tie and fix the rolled upper film 1. The middle part of the ties 6 is connected to the upper film 1 by Velcro, and the connection points of the plurality of ties 6 and the upper film 1 are linearly distributed and arranged at intervals along the length direction of the upper film 1.

[0032] Preferably, the tie 6 is located at the edge of the upper film 1 (see Figure 2 ) or near the center line of the upper film 1 (see Figure 1 ), if it is close to the center line, the upper film 1 can be rolled from both sides to the middle of the row and tied with the ties 6; if it is close to the edge, that is, close to the tree disk on one side, the upper film 1 can be rolled from one side to several disks, and then tied with the ties 6, which is not easy to fall apart and is convenient for mechanized operation, water and fertilizer pipeline maintenance, and fertilization and garden cleaning operations.

[0033] Specifically, the upper film 1 is a silver reflective film made of moisture-permeable PU material. The moisture-permeable reflective ground film made of PU material can achieve light supplementation, improve fruit quality, and promote coloring; at the same time, the reflective film can also reduce the temperature of the soil surface, reduce the evaporation of soil water, and color the fruit earlier in summer and autumn, making the fruit skin darker in color and more flavorful, more popular with consumers, and more economically efficient.

[0034] Specifically, the lower film 2 is a breathable and water-permeable polyethylene black film. The breathable and water-permeable black ground film made of polyethylene material has air-permeable and water-permeable properties between the flat wires, which can prevent weeds, keep moisture, keep warm, and be wear-resistant, tensile-resistant, and corrosion-resistant; at the same time, the black ground film has strong heat absorption, which causes the temperature of the soil surface to rise quickly, especially in spring.

[0035] Specifically, the width of the upper film 1 and the lower film 2 is determined according to the row spacing of citrus fruits, and can be greater than 5 cm to facilitate the splicing of the double-layer films of two adjacent rows.

[0036] When in use, the double-layer film is laid between the rows, the planting opening 5 is aligned with the trunk of the citrus tree, the upper film 1 is rolled up and fixed with the tie 6 during daily field operation, and only the lower film 2 is used for covering, and the lower film 2 is fixed to the ground with ground nails passing through the ground nail holes 4. 60 days before the fruit matures, the ground nails are removed, and then the upper film 1 is pulled out and fixed with the ground nails, which can effectively increase the service life of the upper film 1.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-layer mulch film suitable for growing citrus, characterized by: The invention comprises an upper film (1) and a lower film (2), wherein the upper film (1) is a reflective film and the lower film (2) is a black film. The upper film (1) and the lower film (2) overlap each other, and the edge of the upper film (1) and the edge of the lower film (2) can be detachably bonded together. Velcro (3) is provided at the edges of the opposite surfaces of the upper film (1) and the lower film (2), and the upper film (1) and the lower film (2) are adhered together by the Velcro (3).

2. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: A plurality of ground nail holes (4) are arranged at intervals at the edges of the upper film (1) and the lower film (2), and the ground nail holes (4) of the upper film (1) and the lower film (2) correspond to each other up and down.

3. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: A plurality of planting openings (5) are provided at intervals at both ends of the upper film (1) and the lower film (2) in the width direction, and the planting openings (5) of the upper film (1) and the lower film (2) correspond to each other up and down.

4. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 3, characterized in that: The planting opening (5) is semicircular, with a radius of 10 to 15 cm, and the distance between two adjacent planting openings (5) is determined according to the distance between citrus plants.

5. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: A plurality of ties (6) are provided on one side of the upper film (1) close to the lower film (2), and the connection points between the plurality of ties (6) and the upper film (1) are linearly distributed and are arranged at intervals along the length direction of the upper film (1).

6. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 5, characterized in that: The tie (6) is located at the edge of the upper film (1) or close to the center line of the upper film (1).

7. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: The upper film (1) is a moisture-permeable PU silver reflective film.

8. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: The lower film (2) is an air-permeable and water-permeable polyethylene black film.

9. A double-layer mulch film suitable for growing citrus fruits as claimed in claim 1, characterized in that: The widths of the upper film (1) and the lower film (2) are determined according to the row spacing of citrus fruits.

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