Watering nozzle

Abstract

To provide a watering nozzle which excels in uniform watering to a plant body, is resistant to uneven growth, wilting and withering, reduces watering to unnecessary areas and shortens the watering time. [Solution] The watering nozzle has a shape in which the nozzle holes 5 are arranged in multiple linear rows. The nozzle holes preferably have six or more rows. The liquid agent discharged from the nozzle holes is sprayed at a first angle that is the same within the same row, and at a second angle within other same rows, so that the liquid agent is sprayed at different angles for each row.

Description

[Technical field]

[0001] This invention relates to a watering nozzle that provides excellent uniform watering to plants, is less likely to cause uneven growth, wilting, or withering, reduces watering of unnecessary areas, and leads to reduced use of liquid agents and shorter watering times. [Background technology]

[0002] Conventionally, a watering nozzle has been used that is attached to the end of a hose to supply water to a plant. Such a watering nozzle receives water from a water supply facility such as a tank or waterworks through the hose, and waters the plant from the watering nozzle formed at the end.

[0003] When raising plants, especially seedlings in the agricultural field, water is sprayed using a watering nozzle to supply moisture and nutrients. At that time, it is necessary to swing the watering nozzle from side to side to ensure that the liquid agent is sufficiently distributed to the roots of the plant. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility model registration No. 3228957 [Non-patent literature]

[0005] [Non-Patent Document 1] New Rainbow Nozzle L https: / / www.monotaro.com / g / 05024213 / [Non-Patent Document 2] Metal watering can nozzle, round, with tap https: / / www.monotaro.com / g / 00701702 / Summary of the Invention [Problem to be solved by the invention]

[0006] Conventional watering nozzles are designed on the assumption that water can reach the roots of plants relatively easily, such as when raising rice seedlings or when the plant is in the early stages of germination in outdoor cultivation. Here, strawberries will be used as an example of a plant. In raising strawberry seedlings, the leaves grow thicker as the seedlings grow in the later stages, and a problem occurs in that water does not reach the roots sufficiently even when water is sprayed. Conventionally, liquid agents are sprayed by swinging the watering nozzle from side to side, but the thick leaves prevent the liquid agent from reaching the roots. This causes problems such as withering and wilting due to lack of water, and uneven growth due to lack of nutrients. In addition, there is a problem that additional watering must be done, such as by focusing watering on areas where water is thought to be insufficient, to create extra watering time. [Means for solving the problem]

[0007] In view of the above problems with conventional watering nozzles, the present inventors conducted intensive research and completed the present invention. In other words, the present invention relates to a watering nozzle that provides excellent uniform watering to plants, is less likely to cause uneven growth, wilting, or withering, and reduces the amount of water used while shortening the watering time.

[0008] The liquid agent used in the present invention is not particularly limited as long as it is used on plants. The material of the watering nozzle is not particularly limited and may be brass, plastic, aluminum, etc. Effect of the Invention

[0009] The watering nozzle of this invention allows the user to water plants in sufficient quantities by simply walking in a certain direction, without having to repeatedly swing the nozzle itself back and forth. This results in reduced work time and reduced amounts of liquid. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing an example of a sprinkler nozzle of the present invention. [Diagram 2] FIG. 2 is a side view of the sprinkler nozzle in FIG. [Diagram 3]1 is a cross-sectional view of a watering nozzle of the present invention. [Figure 4] This is the appearance of strawberry trees when they are being grown as seedlings. [Diagram 5] This is an example of a resin tray used for raising seedlings. [Figure 6] This is an example of using the watering nozzle of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The watering nozzle of the present invention can provide a uniform and sufficient amount of water to the plant body during the important period for water management and nutrient management during seedling cultivation. The nozzle is characterized by having multiple rows of discharge holes arranged linearly, and preferably has six or more rows of discharge holes. The arrangement of each discharge hole can spray the liquid agent directly below the plant body, as well as diagonally from the left and right of the plant body. The flow rate of the discharged liquid agent is about 15 l / min under a pressure of 0.2 MPa.

[0012] In addition, the cross-sectional shape of the watering nozzle of this invention is not limited to circular or elliptical as long as the discharge holes are arranged in multiple linear rows, and can be rectangular as long as the liquid agent can be sprayed evenly onto the plant body, and there are no restrictions on the shape.

[0013] The length of the outlet hole of the watering nozzle of the present invention is preferably about 30 to 60 cm, taking into consideration that a typical strawberry seedling tray is about 30 cm wide and 60 cm long.

[0014] The hollow tube in which the discharge holes used in the present invention are installed is preferably lightweight and can withstand the high pressures exerted by water spraying, and suitable materials for use include ABS resin, polycarbonate, aluminum, brass, and stainless steel.

[0015] The discharge holes used in this invention are arranged linearly at equal positions along the axial direction of the hollow tube, and the diameter of the discharge holes is about several hundred μm, with the hole spacing being about several mm, which is suitable for the plant body.

[0016] The watering nozzle of the present invention can simultaneously discharge liquid in at least two rows toward the ground, if the arrangement of nozzle holes arranged in a straight line is defined as one row. It can also simultaneously discharge liquid in two or more rows on each side within a range of 10 to 45 degrees from the ground, for a total of four or more rows.

[0017] The watering nozzle of this invention can be used for all liquids that you want to spray on plants, such as registered pesticides, spreaders, insecticides, liquid fertilizers, etc. EXAMPLES

[0018] Example 1: Spray nozzle of the present invention An embodiment of the present invention will be described with reference to the accompanying drawings. The spray nozzle of the present invention is formed of a water supply hose 1, a handle grip 2, a ball valve 3, a hollow tube 4, a discharge hole 5, and a hollow tube end cap 6. In this embodiment, as shown in FIG. 1, the nozzle has a structure in which the discharge holes are arranged in six rows. As shown in FIG. 3(a), the nozzle has a structure that can spray two rows toward the ground and a total of four rows in a range tilted about 20 degrees left and right from the ground. As shown in FIG. 3(b), the nozzle has a structure that can spray four rows toward the ground and a total of eight rows in a range tilted about 20 degrees left and right from the ground.

[0019] In this embodiment, spraying in strawberry seedlings is considered. Generally, strawberry seedlings are raised in a receiver seedling format as shown in FIG. 4. 7 is a strawberry parent seedling, 8 is a runner, 9 is a strawberry child seedling, and 10 is a seedling tray. Strawberries produce runners called stolons from the parent seedling to form child seedlings with the same genetic information. Farmers root and establish the child seedlings in a seedling tray containing seedling soil, and raise the number of seedlings required for planting in the main field. FIG. 5 shows a typical resin seedling tray. The size of the seedling tray is about 30 cm wide and 60 cm long, and 20 to 40 child seedlings can be raised in one seedling tray. The number of seedlings to be planted in the main field is about 6,000 to 8,000 per 10 ares. Therefore, 300 to 400 seedling trays per 10 ares must be managed during the seedling raising period. Depending on the cultivation area of ​​the main field, 6,000 to 8,000 seedling trays are required for 2 ha (200 ares).

[0020] The seedling trays are aligned in the seedling house, and the handle grip 2 is held so that it is perpendicular to the up-down direction of the strawberries. In other words, it is held so that it is parallel to the ground. Next, the liquid agent supplied from the water supply hose 1 connected to the power sprayer or water pump is discharged from the discharge hole 5 by opening the ball valve 3. At this time, the width of the aligned seedling trays is 30 to 60 cm, which is approximately the same as the length of the discharge hole 5 provided in the hollow tube 4. The worker can spray the liquid agent uniformly on the strawberries simply by moving forward at the same speed in the same direction while discharging the liquid agent. Figure 6 is an image of actual watering. The worker moves from left to right in the figure. As the worker moves, the strawberry seedlings at a certain position are sprayed with the liquid agent not only from above, but also from the left and right directions in sequence.

[0021] In the general spray nozzle described in the non-patent literature, it is confirmed that the leaves of the 9 seedlings grow thick as the seedlings grow in the later stages of seedling growth, and the liquid agent cannot reach the roots sufficiently. Since the spray nozzle is formed in a circular or elliptical shape, the amount of liquid agent discharged from the discharge hole is not uniform at the same location. In other words, the amount of liquid agent is inevitably greater in the center compared to the upper and lower parts of the circular or elliptical shape. Therefore, the current situation is that the spray nozzle is swung back and forth many times to spray the liquid agent as uniformly as possible. However, the line of sight movement during work becomes frequent, making it very difficult to check whether the liquid agent is being sprayed uniformly. Due to these combined factors, wilting, withering, and uneven growth are confirmed in several percent of the seedlings, about one in every two seedling trays. However, the spray nozzle of the present invention is a simple spray that moves forward at the same speed in the same direction while discharging the liquid agent. As shown in Figure 6, the liquid agent is sprayed toward the strawberry roots to avoid the thick leaves. As a result, wilting and withering were reduced to about one in every 10 seedling trays.

[0022] Considering the time required for spraying, when spraying with a power sprayer using a general spray nozzle described in non-patent literature, 6 tons of liquid was used for 8,000 seedling trays, and the spraying time was about 230 minutes. On the other hand, with this invention, the amount of liquid was reduced to 4.5 tons, and the spraying time was shortened to about 170 minutes. [Industrial Applicability]

[0023] By using the spray nozzle of the present invention, it is possible to reduce the amount of liquid agent sprayed and the spray time. Furthermore, it is possible to ensure that the liquid agent reaches the roots of the plant body sufficiently, making it less likely that uneven growth, wilting, or withering will occur. [Explanation of symbols]

[0024] 1 Water supply hose 2 Handle Grip 3. Ball valve 4 hollow tube 5 Discharge hole 6 Hollow Tube End Caps 7 Strawberry seedlings 8 Runner 9 Strawberry seedlings 10 Seedling tray

Claims

1. The watering nozzle has a shape in which discharge holes are linearly arranged in multiple rows.

2. 2. The watering nozzle according to claim 1, wherein the discharge holes are arranged in at least two rows.

3. A sprinkler nozzle as described in claims 1 and 2, characterized in that the liquid coming out of the discharge holes is sprayed at a first angle that is the same within the same row, and at a second angle in other identical rows, so that the liquid is sprayed at different angles for each row.

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