JPH0297337A - Plant-raising pot - Google Patents

Abstract

PURPOSE:To effectively supply a nutritive solution to a plant and prevent the root rot, etc., of the plant by receiving the plant body in the plant-receiving section of a pot main body, fixing the plant body with a lid having an air vent and further directly spraying water on the roots of the plant body. CONSTITUTION:A plant body A is received in a solid medium-free plant body- receiving section 7 at the upper portion of a pot main body 1 and subsequently supported and fixed with a lid 2 having an air vent 5. A nutritive solution is sucked up from a water reservoir 4 positioned inside or outside the pot main body 1 and directly sprayed on the roots of the plant body A with a spraying mechanism 3 in such an extent as the roots are substantially not immersed in the water, thereby effectively supplying the nutritive solution to the plant body.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a plant growing device, and more particularly to a plant growing device for hydroponic cultivation.

(Conventional technology and its problems) Hydroponic cultivation is a method of growing crops while providing a culture solution (nutrient solution) without using soil, and has advantages such as higher yields than soil cultivation. Because of this, it is widely practiced.

Hydroponic cultivation uses solid medium methods such as sand cultivation, gravel cultivation, charcoal cultivation, urethane cultivation, and rock wool cultivation, as well as hydroponics, hydroponics,
Broadly divided into non-solid medium methods such as spray cultivation, solid medium methods retain nutrients in the solid medium, and the medium itself must be replaced at regular intervals to prevent root rot, the growth of algae, or when renewing the culture medium. In addition, since the medium is used, various controls such as the supply of culture solution are difficult to perform smoothly. Furthermore, even in non-solid culture medium systems, roots are often immersed in the culture solution, and this case also involves problems such as root rot.

Although various plant growing devices have been proposed to solve these problems, none have yet been developed that are fully satisfactory.

Therefore, an object of the present invention is to provide a plant growing device that can effectively supply a nutrient solution to plants.

Another object of the present invention is to provide a plant growing device that has excellent ventilation and prevents root rot.

Still another object of the present invention is to provide a plant growing device that allows various controls to be easily performed.

(Means for Solving the Problems) According to the present invention, there is provided a pot main body, a plant storage part that does not contain a solid medium located in the second part of the main body, and a plant storage part that covers the top of the plant storage part and has an air vent. and a lid for fixing the plant body, and a spraying mechanism that sprays water stored in the pot body or water outside the pot body to the roots of the plant body housing part to such an extent that the roots are not substantially immersed in water. A plant growing device is provided comprising:

(Function) The configuration of the present invention will be explained with reference to FIG. 1, which shows an example of the present invention.

The plant growing device of the present invention has a pot 1 for accommodating a plant body A.
At the top of the pot L, the nutrient solution is sucked up from the lid 2 that supports and fixes the plant A, and the water reservoir 4 provided outside the pot 1, and the nutrient solution is directly sprayed onto the roots of the plant A inside the needles. It consists of a spraying mechanism 3.

This lid 2 allows the roots of the plant A to directly absorb the nutrient solution sprayed inside the pot 1, and the lid 2 also has an air vent for ventilation inside the plant housing. 5
is provided.

Furthermore, in another aspect of the present invention, it is also possible to provide a nutrient solution spraying mechanism inside the pot.

In FIG. 2 for explaining this aspect, the plant growing device of the present invention has a pot 1 partitioned into a plant housing section 7 for housing a plant A and a water reservoir 4 by a shield @6. There is. A lid 2 for supporting and fixing the plant A is provided above the plant housing part 7, so that the roots of the plant A can absorb the nutrient solution sprayed inside the plant housing part 7. It has become. This lid 2 is provided with an air vent 5 for ventilation within the plant housing section. The shield 6 is provided with a liquid passage port 9 to allow surplus of the nutrient solution sprayed onto the plants to flow back into the water reservoir. The plant housing section 7 is provided with a spraying mechanism 3 that sucks up the nutrient solution from the water reservoir 4 and sprays the nutrient solution onto the plants.

The present invention is characterized in that the nutrient solution is sprayed directly onto the roots. As a result, the roots are not always immersed in the culture solution, and the air vent provided in the lid allows
Since the inside of the plant housing is a favorable environment for the plants, there is no risk of root rot or algae growth.

Furthermore, according to the second aspect of the present invention, the excess amount of the nutrient solution sprayed on the roots returns to the water reservoir through the water passage provided in the shield, making it possible to save the nutrient solution, which is economical. It will also be excellent in terms of performance. Additionally, the spray mechanism is housed within the needle, giving it a clean appearance.

(Preferred Embodiments of the Invention) The plant growing device of the present invention can be modified and improved in various ways as long as it has the above-described components.

The spraying mechanism that sucks up the nutrient solution from the water reservoir and sprays the nutrient solution on the roots can adopt a diaphragm, ultrasonic, orifice, pump, etc., and by attaching a timer, moisture sensor, etc. It becomes possible to control the supply of nutrient solution to plants easily and accurately. Examples of this control include intermittent spraying of nutrient solution using a timer, and attaching a moisture sensor to the plant body to supply spray water and metered water supply when necessary.

The material for the plant growing device of the present invention can be any material as long as it has liquid tightness, such as glass,
Plastic, ceramic, porcelain, etc. can be used.

The plant growing device of the present invention can be varied from a small one for ornamental use to a large one for agricultural use.

Furthermore, the plant grower of the present invention is not limited to the types of plants that can be used, and can be used for most types of plants, but is particularly effective for ornamental plants or succulents native to tropical and subtropical regions. , plants can also be cultivated.

It goes without saying that the water reservoir can be filled with not only water but also nutrient solutions containing various nutrients depending on the plants to be used.

(Effects of the Invention) According to the present invention, the plant body is fixed by the pot body and the lid having an air vent, and the nutrient solution is effectively supplied by spraying water directly to the roots of the plant body inside the sealed needles. Provided is a plant growing device that can supply liquid to plants, has excellent ventilation, prevents root rot, etc., and can easily perform various controls regarding liquid supply.

(Example) As a test plant, rubber cultivar "Lobster" was used,
In all of the tests shown below, rubber plants whose roots had been washed of soil were transplanted into a spray water supply (No. 7, plastic pot with a capacity of 3A), and after one week of acclimatization, the tests were conducted. The size of the test plant is approximately 3000cm2 in leaf area. The plant height was 70 cm.

Test 1: Angles Sensitivity and selection of leaves to be measured The angles shown in Figure 3 were measured. Leaf numbers are shown in Figure 4. The angles of the 3rd to 13th leaves of the rubber were measured over time at 250 lux, 21.5° C., and 65% RH.

The amount of water evaporation was measured under the basic conditions of 10,001 ux, 21.5° C., and 165% RH. Changes in the amount of transpiration due to humidity were measured at 500 lux and 24.5°C.

The leaf area varies by size from 5000 to 6000 cm.
The amount of water evaporated was calculated from the change in weight.

Test 3: Cultivation in each environment Cultivation was performed for one week in seven test locations, and the amount of water transpiration,
The amount of water sprayed and the angle of the leaves were measured.

Lighting was from 8:00 to 20:00 for 12 hours, and temperature and humidity were recorded using an automatic recorder. Spray water supply is available at 9:00 a.m., 1:00 p.m.
At 5:00 p.m., each test was carried out at 10 m1, with a daily dose of 30 m1 as a guide. Angle measurements were taken at 8:00 and 19:00 before the first fountain N water supply and after the last water supply of the day, respectively. The weight of the reservoir for calculating the amount of water evaporation and spray water supply was measured immediately before and after each spray water supply.

The results are shown below.

Test 1 The angle of leaf wilting due to water transpiration increased as water shortage progressed. Furthermore, when rubber was sprayed with water in a water-deficient state, the leaves immediately recovered and gradually changed (Figure 5). The 3rd to 7th leaves were the most sensitive (changed) in both wilting due to lack of water and recovery by spray watering. Based on this, the 3rd to 7th leaves were selected as indicators of water stress in rubber.

Test 2 Moisture evaporated almost constantly, and the amount of water transpiration varied depending on the illuminance as shown in Figure 6. When these measured values are shown in a daily illuminance model indoors, transpiration occurs during the day with high illuminance, resulting in approximately 30 m1 per day (Figure 7).Moreover, the amount of water transpiration due to humidity is Changes as shown in Figure 8, 60
%Rf (it reached its maximum near 40% RH), but it tended to decrease near 40% RH. Also, the amount of water transpiration due to the difference in size was proportional to the leaf area (Figure 9).

Test 3 Among the seven indoor environments, as shown in Figure 10, the leaf angle does not change or tends to decrease (recovery trend), and the leaf angle increases (withering). There was also a trend). As a result, it was found that maintenance and management was possible with a spray water supply amount of 30 m1/day under windless conditions of 800 lux or less. In this case 30m spray watered
About 50 to 70% of the water in No. 1 was attached to the roots.

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams showing an example of the plant growing device of the present invention, Figure 3 is a diagram showing the angle of leaves to be measured, and Figure 4 is a diagram showing the leaf numbers. Figure 5 is a diagram showing changes in the recovery angle of leaves due to spray water supply, Figure 6 is a diagram showing the relationship between illuminance and water transpiration, and Figure 7 is a diagram showing the relationship between -day and water transpiration. Figure 8 is a diagram showing the relationship between temperature and the amount of water transpiration, and Figure 9 is a diagram showing the relationship between the size of rubber and the amount of water transpiration. Yes, FIG. 10 is a diagram showing changes in the angle of rubber leaves in environment A. 1... Bowl, 2... Lid, 3... Spraying mechanism, 4...
Water reservoir, 5...Air vent, 6...Shielding, 7...Plant housing section, 8...Liquid port.

Claims (3)

[Claims] (1) A pot body, a plant housing part located at the top of the body that does not contain a solid medium, a lid that covers the top of the plant housing part, has an air vent, and fixes the plant body, and storage inside the pot body. 1. A plant growing device comprising a spraying mechanism that sprays water or water outside the pot body to the roots of the plant housing part to such an extent that the roots are not substantially immersed in water. (2) The plant growing device according to claim (1), wherein a shield having a liquid passage port is provided in the pot body, a plant housing portion is provided above the shield, and a water reservoir is provided below the shield. (3) The plant growing device according to claim (1), wherein the water reservoir is provided outside the pot body.