JP3024402U - Underground root ventilation for agricultural crops - Google Patents

Abstract

(57) [Summary] [Purpose] The outside air is exchanged into the soil by exhausting harmful gases in the ground by using the wind blowing above the ground without using chemicals, power, electricity, etc. (EN) An underground root zone aerator for agricultural crops, which eliminates oxygen deficiency in the root zone, absorbs fertilizer well by the roots, and is suitable for a soil environment in which crops grow robustly. [Structure] Inside a hollow body 1 whose upper end is gradually narrowed toward the lower end, a partition wall 2 in the vertical direction is provided to form a plurality of empty chambers communicating with an upper end opening 3, and each of these empty chambers is hollow. A vent hole 5 is formed in the outer wall of the body 1. Each ventilation port 5 is provided with a barrage 9 for preventing intrusion of sediment. A contact edge 7 is provided around the upper end opening 3 slightly below, and the ground surface X is below the contact edge 7. The lower end portion 8 is formed by arranging a plurality of conical ones with sharp vertices facing downward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to an aerial ventilator for crop cultivation, which is inserted into the ground to promote the development of roots for exhausting harmful gases such as greenhouse cultivation.

[0002]

[Prior art]

 When organic fertilizer is applied to the soil in the greenhouse, it may be fermented or decomposed in the ground to generate harmful gas, etc., and the root area of the crop may become nearly oxygen-deficient. In order to supply oxygen deep into the root area and remove or neutralize harmful gases in the ground, conventionally, oxygen generators have been included in the soil, and air has been used by using compressors and irrigation machines. Had been forced into the soil.

[0003]

[Problems to be solved by the device]

 However, the use of chemicals such as oxygen generators has the drawback of chemically contaminating the soil. In addition, when an oxygen generator or the like is included in the soil, even if the aqueous solution is poured into the soil, the surface of the soil is so hard that it does not penetrate deep into the root area.

Similarly, when air is forcedly sent into the soil by using a compressor or the like, the air force is so strong that the soil is blown off, the land is rough, and the crops are damaged.

Harmful gases and the like generated in the soil may be removed slowly over a long period of time without being removed in a short period of time.

The present invention has been made in view of the above circumstances, and does not damage the crops without chemically polluting the farmland or forcibly sending air to disturb the farmland. By exhausting harmful gases in the ground by using a weak wind blown from the ground or an updraft caused by a rise in room temperature, the outside air is exchanged and enters the soil, eliminating the lack of oxygen in the root area of the crop and growing the crop. It is an object of the present invention to provide an aerial ventilator for the cultivation of agricultural crops that promotes crop cultivation.

[0007]

[Means for Solving the Problems]

 The underground root area ventilator for cultivation of agricultural products of the present invention has a plurality of chambers communicating with the upper end opening by providing a partition wall in the vertical direction inside a hollow body that gradually narrows toward the lower end and opens at the upper end. In each of these vacant chambers, there is a ventilator for underground cultivation of agricultural crops, in which a ventilation hole is formed which opens to the outer wall of the hollow body.

[0008]

[Action]

 In the underground root zone aerator for crop cultivation with the above configuration, the weak wind that flows laterally over the soil in the house and the weak updraft generated by the rise in room temperature inside the house are used to The harmful gas of the plant is exhausted, and fresh air is replenished into the soil from the surroundings, and the soil is inserted around the plant base of the crop from the bottom end so that the upper part comes out above the soil.

Then, due to the weak crosswinds and upward airflow, the air in the empty room of the inserted ventilator for the agricultural roots for crop cultivation is guided to the upper outside. Along with this, harmful gas is attracted from the surrounding soil through the vents on the outer wall of the ventilator, and is exhausted into the air from the top opening of the ventilator. That is, a weak airflow is formed in the ventilator toward the upper outside, and the gas is discharged along the weak airflow. The fresh air replaced by it gradually reaches the root zone from the surrounding area. Eventually, fresh outside air slowly enters the soil through the soil surface.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an embodiment of an aerial ventilator for an underground crop for cultivating crops according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a longitudinal side view of the same. It consists of a hollow body (1) that gradually narrows toward the lower end and opens at the upper end. As shown in FIGS. 2 and 3, the inside is partitioned by a vertical partition wall (2), and the upper end opening (3) is It is divided into 5 open rooms (4). Each of these is formed with a vent hole (5) opening to the outer wall of the hollow body (1).

A reinforcing plate (6) for withstanding earth pressure is provided in the central empty chamber (4a). Moreover, by partitioning the inside with the partition wall (2) as described above, the structure is strong against earth pressure.

As shown in FIG. 1, an abutting edge (7) is provided around the upper end opening (3) slightly below, and is inserted into the ground until the ground surface (X) hits the abutting edge (7). It is a waste. The lower end portion (8) is formed by arranging a plurality of conical ones with sharp vertices facing downward, so that it can be easily inserted into the ground. Each of the ventilation holes (5) is provided with a barrage (9) for preventing intrusion of sand and sand, which prevents surrounding sand and sand from entering the inside of the ventilation hole (5) when it is inserted into the soil.

When a weak crosswind or an updraft occurs on the soil, the air in each vacant chamber (4) is guided to the outside from the upper end opening (3) of the hollow body (1). Then, the gas in the surrounding soil is drawn out from each of the vent holes (5) to each of the vacant chambers (4) in the hollow body (1), and these vacant chambers (4) are directed from the lower side to the upper side. A flowing airflow is formed, and the gas in the soil is continuously discharged to the outside. That is, the gas in the soil is exhausted into the air above the ground.

As shown in FIG. 2, when viewed from above, the hollow body (1) has a rectangular shape with rounded corners. On the other hand, it is considered that the roots of the crops are radiating from the root of the plant and spreading out, so when inserting the hollow body (1) into the underground root area, the long rectangular It is advisable to insert so that the sides are along the radial direction from the center of the stock.

In the above embodiment, the shape of the hollow body (1) is a tapered shape with a substantially rectangular cross section as shown, but the shape is not limited to this, and the cross section may be oval or circular. A polygonal shape may be used, and various shapes are conceivable, but a structure that can be easily inserted into the soil and can withstand earth pressure is sufficient. Further, the shape and number of vent holes are not limited. The vertical partition wall (2) is provided inside the hollow body (1) to form the five empty chambers (4), but the number is not limited to five, and any number may be used. Although the ABS resin is used here as the material of the hollow body (1), other synthetic resins or other materials may be used, and the material is not limited.

[0016]

[Effect of device]

 According to this invention, a hollow body having an open upper end is partitioned by vertical partition walls, and a plurality of vacant chambers are provided, and a ventilation port opening to the outer wall of the hollow body is formed in each vacant chamber. The airflow is formed in the hollow chamber inside the hollow body toward the ground side, and the gas generated in the underground root area around the hollow body can be slowly exhausted to the ground through the ventilation hole to the ground. The air circulation around the root area of the crops is slowly and gently promoted without inducing, and the extremely beneficial effect of promoting the growth of the crops is achieved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is likewise a vertical side view.

[Explanation of symbols] 1 Hollow body 2 Partition wall 3 Upper end opening 4 Vacancy 4a Central void 5 Vent 6 Reinforcing plate 7 Abutment 8 Lower end 9 Sediment intrusion bar X Surface

Claims (1)

[Scope of utility model registration request] 1. A plurality of vacant chambers communicating with the upper end opening are formed inside a hollow body whose upper end is gradually narrowed toward the lower end and whose upper end is opened. A ventilator for underground crops for crop cultivation, which is characterized by forming a vent opening on the outer wall of the body.