KR101282853B1 - Agriculture mulching cap for near-infrared ray reflection - Google Patents

Abstract

The present invention relates to an agricultural mulching cap having a near-infrared reflecting function that covers the part where the stem of the crop is buried on the ground, as well as photosynthetic action by sunlight directly irradiated on the crop when the crop is grown, and a predetermined distance on the agricultural mulching cap surface From the concave semicircular groove-shaped surface or the triangular prism groove-shaped surface, the light rays in the near infrared wavelength range of 720 to 740 nm are diffusely reflected from the lower part to the upper part of the crop by scattering reflection, diffraction reflection, etc. In particular, by improving the sugar content along with the development of growth to increase the merchandise, it seems that the contribution of the present invention to the farmers' profit improvement and farming.

Description

Agricultural mulching cap for near-infrared ray reflection}

The present invention by covering the agricultural mulching cap on the part where the stem of the crop is buried on the ground, as well as photosynthetic action by the sunlight directly irradiated on the crop when cultivating the crop, from the mulching cap by sunlight irradiated on the agricultural mulching cap It relates to an agricultural mulching cap having a near-infrared reflecting function, characterized in that by improving the light reflectance of the reflecting near-infrared wavelength region of 720 ~ 740nm to improve the fruit sugar with the growth and development of fruit or vegetables by photosynthesis.

Generally, the mulching film for agriculture is a film that covers the ground floor of the soil when cultivating crops. It prevents weeds, suppresses evaporation of soil moisture, and prevents loss of soil. It is a film that can stably produce high-income crops.

However, when the agricultural mulching film is used to cultivate crops, it has the advantage of maintaining the moisture content and soil temperature in the soil by covering the ground of the soil. Crops that are sensitive to moisture, breathability, etc., affecting growth and yield, may have a slow growth if agricultural mulching films are used.

The various seedlings of the above crops are most important in growth conditions, the light wavelength absorption rate effective for photosynthesis and chlorophyll action is very important. Natural light or artificial light has many light wavelengths other than visible light, ultraviolet light, infrared light, etc., and the wavelength bands that contribute to photosynthetic reaction are known as blue wavelength band (450-550 nm) and red wavelength band (550-700 nm). In addition, various techniques have been developed for improving the transmittance of photosynthetic wavelength band light mainly for the film for the vinyl house.

Looking at the development of the film for the vinyl house using the light conversion agent, Patent Literature 1 is known a light conversion film using at least one organic light emitting material selected from the group consisting of a red light emitting body and a blue light emitting material, in the case of the patent as described above By uniformly dispersing the organic light emitting material which is a light conversion agent in the same polymer resin, the sunlight transmitted through the film is converted into light of 635 ~ 640nm which is almost close to the active wavelength where photosynthesis occurs, increasing the growth rate of the plant and shortening the growth period Is. In addition, Patent Document 2 uses an infrared absorbing pigment and a light converting fluorescent dye in an agricultural film at the same time to increase the photosynthesis of the plant to promote the growth rate of the plant, and selectively transmit and absorb the light useful for the plant to grow and transmit to the plant Functional agricultural films having a light selective transmittance are known, which have a function of increasing fruit growth and yield, but such films are suitable for the use of a film for a vinyl house as an agricultural mulching cap. In the case of application, there was a problem in that it did not give special help to the growth of crops.

Accordingly, the present inventors have completed the present invention by developing an agricultural mulching cap that can compensate for the problem of lowering the air permeability of the ground when using the agricultural mulching film, and to increase the growth of crops and the sweetness of fruits.

: Korean Patent Publication No. 10-0863006 (Optical conversion resin composition containing an organic light emitting body and an optical conversion film using the same) : Korean Patent Publication No. 10-0984329 (Functional Agricultural Film with Light Selectivity)

The present invention by covering the agricultural mulching cap on the crop, and by increasing the light reflectance in the near-infrared wavelength region of 720 ~ 740nm reflected by sunlight irradiated on the agricultural mulching cap, in particular with the growth development of fruit or vegetables by photosynthesis An object of the present invention is to provide a mulching cap for agriculture having a near infrared reflecting function, characterized in that the improved.

And the present invention by forming a concave semi-circular groove or triangular prism groove shape or pit groove shape on the surface of the agricultural mulching cap at regular intervals, the near-infrared wavelength region of 720 ~ 740nm from the surface of the groove formed at regular intervals on the agricultural mulching cap surface Another object of the present invention is to provide an agricultural mulching cap having a near-infrared reflecting function, wherein light is diffusely reflected from the lower part to the upper part of the crop by scattering reflection, diffraction reflection, or the like, thereby improving the sweetness of fruit flow.

The present invention to achieve the above object in the agricultural mulching cap made of a synthetic resin substrate and additives,

An agricultural mulching cap having a near infrared reflecting function comprising 25 to 30 parts by weight of a near infrared reflecting dye and 4 to 5 parts by weight of an ultraviolet stabilizer based on 100 parts by weight of a synthetic resin is a problem solving means.

In addition, the near-infrared reflecting dye is characterized in that one selected from the Naphtol AS-based (Naphtol AS) dye or carmine-based (CARMINE) dye that reflects the near-infrared ray of the wavelength of 720 ~ 740nm.

In addition, the synthetic resin is used by selecting one of polypropylene resin, polyethylene resin, polyvinyl chloride resin.

In addition, the agricultural mulching cap is a cap having a circular body and a flange portion facing downward to the outer periphery of the main body, a through hole through which the stem is formed in the central portion of the main body, and the through hole so that the stem is inserted into the through hole; It is a structure formed with a passageway connected to the outer periphery

Or a semi-circular main body and a through hole through which the stem is formed in the center portion of the main body, the through hole and the semi-circular periphery is formed so that the stem is inserted into the through hole, the structure is formed

The agricultural mulching cap is characterized in that the irregularities formed on the surface of the cap at a predetermined interval.

The present invention by the above problem solving means has the effect of increasing the crop growth and harvest, in particular by increasing the sugar content of the fruit to increase the marketability, it seems that the contribution of the present invention to the farmers' profit improvement and farming.

1 is a view showing a state of cultivating crops using a general agricultural mulching film,
Figure 2 is a perspective view of the agricultural mulching cap of the embodiment according to the present invention,
3 is a perspective view of an agricultural mulching cap of another embodiment according to the present invention,
4 is a view showing a state in which the near-infrared ray is reflected in the agricultural mulching cap covering the crop according to the present invention,
Figure 5a is a view showing a cross-section of the cap formed a concave semi-circular groove shape on the surface of the agricultural mulching cap according to the present invention,
Figure 5b is a view showing a cross-section of the cap formed with a concave triangular prism groove shape on the surface of the agricultural mulching cap according to the present invention,
Figure 5c is a view showing a cross-section of the cap formed a concave pit groove shape on the surface of the agricultural mulching cap according to the present invention,
Figure 6 is a photograph taken to grow the melon using an agricultural mulching cap having a near infrared reflecting function of Examples 1 and 2 according to the present invention,
7 relates to photographs taken in Comparative Example 1 as compared to Examples 1 and 2 according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail, but reference to configurations and operations easily understood by those skilled in the art will be briefly or omitted.

Agricultural mulching cap having a near-infrared reflecting function according to the invention in the agricultural mulching cap made of a synthetic resin substrate and additives,

It is characterized in that it comprises 25 to 30 parts by weight of the near infrared reflecting dye, 4 to 5 parts by weight of the UV stabilizer based on 100 parts by weight of the synthetic resin.

As shown in FIG. 1, the conventional agricultural mulching film 200 is cultivated in the state of planting the crop 20 by drilling a hole in the agricultural mulching film 200 covering the ground of the soil 100, and thus, the crop 20. Sunlight directly irradiates the crops to photosynthesis.

The present invention as an alternative to the conventional agricultural mulching film 200. It is characterized by using an agricultural multicap having a structure as shown in Figures 2 and 3.

As an embodiment according to the present invention, the agricultural mulching cap, as shown in Figure 2, is a cap having a circular body 11 and the flange portion 12 facing downward on the outer periphery of the body 11, A through hole 13 through which the stem penetrates is formed in the central portion of the main body 11, and a through path 14 through which the through hole 13 and an outer periphery are connected to be inserted into the through hole 13 is formed. .

And, in another embodiment according to the present invention, the agricultural mulching cap, as shown in Figure 3, the semi-circular main body 11 and the central portion of the main body is formed with a through hole 13 through which the stem penetrates, the stem The through hole 14 is connected to the through hole 13 and the semicircular periphery 15 so as to be inserted into the through hole 13.

Therefore, the stem of the crop 20 is inserted into the through hole 13 through the through-hole 14 of the agricultural mulching cap, and then the agricultural mulching cap is fixed to the ground of the soil as shown in FIG.

At this time, as shown in Figure 4, by reflecting the light of the near-infrared wavelength region of the sunlight irradiated to the agricultural mulching cap 10 toward the crops from the agricultural mulching cap 10, the fruit of the fruit 20 opened in the crop 20 It is characterized by improved sweetness.

Therefore, the agricultural mulching cap according to the present invention by adding 25 to 30 parts by weight of the near infrared reflecting dye with respect to 100 parts by weight of the synthetic resin, the light of the near-infrared region having a wavelength of 720 ~ 740nm in the sunlight irradiated to the agricultural mulching cap is reflected, Rays of the reflected near infrared region are reflected toward the crops from the agricultural mulching cap covering the ground of the soil.

The near-infrared reflecting dye is characterized in that one selected from the Naphtol AS (Naphtol AS) dye or carmine (CARMINE) dye that reflects the near-infrared ray of the wavelength of 720 ~ 740nm.

That is, the present invention focuses on the fact that the sugar content of fruit flow is improved by irradiating the crops with light in the near-infrared wavelength region of 720 to 740 nm.

The synthetic resin used in the present invention is preferably selected from one type of polypropylene resin, polyethylene resin, and polyvinyl chloride resin.

And the near-infrared reflecting dye is preferably added to 25 to 30 parts by weight based on 100 parts by weight of the synthetic resin. When the added amount of the near infrared reflecting dye is less than 25 parts by weight, there is a fear that the near infrared region light having a wavelength of 720 to 740 nm may not be sufficiently reflected in the sunlight irradiated to the agricultural mulching cap, and the amount of the adding of the near infrared reflecting dye is 30 parts by weight If it exceeds, there is a fear of reflecting up to the near-infrared rays beyond the wavelength of 720 ~ 740nm.

In the present invention, the mulching cap for agriculture reflects 35-38% of near-infrared rays having a wavelength of 720 to 740 nm according to the amount of near-infrared reflecting dye added to the agricultural mulching cap. If the reflectance of the near-infrared ray with a wavelength of 720 to 740 nm is less than 35%, the sugar content of fruit flow may not increase significantly. If the reflectance of the near-infrared ray with a wavelength of 720 to 740 nm exceeds 38%, the excess near-infrared reflection is added. There is a fear that the mechanical properties of the agricultural mulching cap is lowered by the dye.

In addition, the present invention preferably adds 4 to 5 parts by weight of the UV stabilizer in order to prevent the agricultural mulching cap from aging easily from the ultraviolet. When the amount of UV stabilizer added is less than 4 parts by weight, the agricultural mulching cap may be easily aged by UV rays, and when the amount of the UV stabilizer exceeds 5 parts by weight, the mechanical properties of the agricultural mulching cap may decrease. have.

In addition, the present invention forms a concave-convex shape on the surface of the agricultural mulching cap at regular intervals so that the near-infrared ray of the wavelength of 720 ~ 740nm reflected from the agricultural mulching cap can be sufficiently irradiated on the crop. The uneven shape may be a semicircular groove shape (see FIG. 5A) or a triangular prism groove shape (see FIG. 5B) or a pit shape (see FIG. 5C) concave on the surface of the agricultural mulching cap 10 as shown in FIGS. 5A to 5C. It is preferable to form at regular intervals, and in addition to the concave-convex shape defined above, it is also possible to form a concave-convex shape of various shapes.

Therefore, from the sunlight irradiated on the surface of the embossed pattern of the concave semi-circular groove or triangular prism shape on the surface of the agricultural mulching cap, the light of the near-infrared wavelength region of 720 to 740 nm is selected and scattered reflection, diffraction reflection, etc. By diffusely reflecting toward, the sweetness of the fruit can be improved.

Hereinafter, the agricultural mulching cap having a near infrared reflecting function according to the present invention will be described in detail with reference to the following examples, but the present invention is not necessarily limited to the following examples.

1. Manufacturing of mulching cap for agriculture

(Example 1)

25 parts by weight of a near infrared reflecting dye (Naphtol AS, Red F5RK, CLARIANT, Germany) and 4 parts by weight of an ultraviolet stabilizer were added to 100 parts by weight of polyethylene resin to form a concave semicircular groove embossed pattern on the surface of the cap at regular intervals. An agricultural mulching cap having a near infrared reflecting function having a thickness of 1 mm was prepared.

(Example 2)

30 parts by weight of a near infrared reflecting dye (Naphtol AS, Red F5RK, CLARIANT, Germany) and 5 parts by weight of an ultraviolet stabilizer were added to 100 parts by weight of polyethylene resin to form a triangular prism-shaped embossing pattern on the surface of the cap at regular intervals. An agricultural mulching cap having a near infrared reflecting function having a thickness of 1 mm was prepared.

(Comparative Example 1)

25 parts by weight of carbon black and 4 parts by weight of UV stabilizer were added to 100 parts by weight of polyethylene resin to prepare an agricultural mulching cap having a thickness of 1 mm.

2. Cultivation of melon using agricultural mulching cap

Covering the soil with agricultural mulching caps of Examples 1, 2 and Comparative Example 1 in a plastic house, then made a hole and planted melon seedlings, cultivated. Soil ground and ground temperatures are shown in Table 1 below.

                                                                (Unit: ℃) division Underground temperature Ground temperature Best lowest Average Best lowest Average Temperature 46.5 20.3 27.0 46.5 21.0 27.8

(Measurement period: 2011. 6.15 ~ 7.10)

3. Evaluation of Mulching Cap for Agriculture

As a result of cultivating the melon using the agricultural mulching cap of Examples 1, 2 and Comparative Example 1, the characteristics of the melon root is as shown in Table 2 below.

division Example Comparative Example One 2 One Live weight (unit: g / week) 26.4 27.1 22.5 In building (unit: g / week) 2.22 2.37 2.06

And as a result of cultivating the melon using the agricultural mulching cap of Examples 1, 2 and Comparative Example 1, the characteristics of the melon seedlings are as shown in Table 3 below.

division Example Comparative Example One 2 One Leaf area (cm ^2/10 weeks) 121.1 124.2 117.3 Live weight (unit: g / week) 6.60 6.78 6.37 In building (unit: g / week) 0.70 0.72 0.63

* Measurement of leaf area was carried out by the photometric method using a leaf area meter (manufactured by Ga-5 Japan Tokyo Photo) to obtain an average value.

* The measurement of leaf and stem weight was averaged using infrared moisture meter (manufactured by FD-610Japan Kett).

In addition, as a result of measuring the reflectance of the near-infrared region of the wavelength of 720 ~ 740nm of the agricultural mulching cap of Examples 1, 2 and Comparative Example 1 as shown in Table 4 below.

division Example Comparative Example One 2 One 720 nm reflectance (%) 35.2 38.6 5.5 740 nm reflectance (%) 35.5 38.3 5.8

* Reflectance measurement is performed at 12 noon on a clear day using a spectrophotometer (CM-2500D, manufactured by Japan Minolta). Measured.

As shown in Table 4, Examples 1 and 2 can be seen that the reflectance of the near-infrared ray of the wavelength of 720 ~ 740nm is much higher than in Comparative Example 1.

And as a result of cultivating the melon using the agricultural mulching cap of Examples 1, 2 and Comparative Example 1, the sugar properties of the melon is as shown in Table 5 below.

division Example Comparative Example One 2 One Brix 15.2 15.8 14.3

* The measurement of sugar content is done by dropping the sample on the prism face using a sugar meter (PAL-1, Japan Atago) and pressing the start button to complete the sugar measurement within 3 seconds.

As shown in [Table 2] to [5], as a result of cultivating the melon using the agricultural mulching caps of Examples 1 and 2 according to the present invention, the state of the melon root and seedlings is general agricultural mulching of Comparative Example 1 It was found to be better than the condition of the melon roots and seedlings grown using the cap.

In particular, as shown in Table 5, the melon cultivated using the agricultural mulching cap of Examples 1 and 2 according to the present invention is far superior in sugar than the melon cultivated using the agricultural mulching cap of Comparative Example 1. Confirmed.

For reference, Figure 6 is a photograph taken to grow the melon using an agricultural mulching cap having a near-infrared reflecting function of Examples 1 and 2 according to the present invention, Figure 7 is a first and second embodiment according to the present invention It relates to the photograph in which comparative example 1 was taken.

As described above, the agricultural mulching cap having a near-infrared reflecting function according to a preferred embodiment of the present invention has been described according to the above description and the accompanying drawings, but this is merely an example and does not depart from the spirit of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope.

10: mulching cap for agriculture
11 body 12 flange portion
13 through hole 14 through passage
15: around semicircle
20: crop 30: home
100: soil 200: agricultural mulching film

Claims (8)

In the agricultural mulching cap consisting of a synthetic resin substrate and additives,
Agricultural mulching cap having a near-infrared reflection function, characterized in that it comprises 25 to 30 parts by weight of near-infrared reflecting dye, 4 to 5 parts by weight of UV stabilizer based on 100 parts by weight of synthetic resin.
The method of claim 1,
The near-infrared reflecting dye agricultural mulching cap having a near-infrared reflecting, characterized in that for reflecting the near-infrared ray of the wavelength of 720 ~ 740nm.
The method of claim 1,
The near-infrared reflecting dye is an agricultural mulching cap having a near-infrared reflecting function, characterized in that one selected from the naphtol AS-based (Naphtol AS) dye or carmine-based (CARMINE) dye.
The method of claim 1,
The synthetic resin is a mulching cap for agriculture having a near infrared reflection function, characterized in that one selected from polypropylene resin, polyethylene resin, polyvinyl chloride resin.
5. The method of claim 4,
The agricultural mulching cap is a cap having a circular body and a flange portion directed downward to the outer periphery of the main body, a through hole through which a stem penetrates is formed in the center of the main body, and a through hole and an outer periphery so that the stem is inserted into the through hole. Agricultural mulching cap having a near-infrared reflection function, characterized in that the through passage is formed.
5. The method of claim 4,
The agricultural mulching cap has a near-infrared reflecting function, characterized in that the semi-circular main body and a through hole through which the stem penetrates are formed in the central portion of the main body, and a through hole connecting the through hole and the semicircular circumference so that the stem is inserted into the through hole. Having agricultural mulching cap.
5. The method of claim 4,
The agricultural mulching cap is an agricultural mulching cap having a near-infrared reflection function, characterized in that the irregularities formed on the surface of the cap at a predetermined interval.
8. The method according to any one of claims 5 to 7,
The agricultural mulching cap is an agricultural mulching cap having a near infrared reflection function, characterized in that the near infrared ray reflectance is 35 ~ 38%.

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