JP7342078B2 - Cultivation system using liquid fertilizer, humidity, temperature, and air control - Google Patents

Description

The present invention relates to a cultivation structure and cultivation system with automatic control, and in particular, to a cultivation structure and cultivation system with automatic control of liquid fertilizer, humidity, temperature, and air that can directly control the amount of liquid fertilizer applied to the root system of crops, humidity, and temperature. Regarding cultivation systems that control temperature and air.

In recent years, the situation of global warming and climate change has become more serious year by year, and extreme climates not only affect the balance of temperature, humidity, and rainfall, but also affect the distribution of water resources and reduce the amount of agricultural land. It causes drought and moisture damage, restricts the growth of crops, and has a huge impact on agricultural development. Therefore, soilless cultivation techniques using shelter facilities and water-saving irrigation have already become the current development trend of efficient agriculture.

In order for agricultural crops to grow vigorously and obtain high yields, it is essential for plants to have strong root systems.A strong root system is built in a completely optimal root system environment, and the temperature of the medium is an important influencing factor. , humidity (moisture), air (oxygen) and plant nutrients (fertilizer). At present, the commonly used drip irrigation technology can accurately provide the moisture and nutrients necessary for crop growth or achieve the function of water-saving irrigation, but it can reduce the temperature and air of the root system environment. The flaw is that it cannot be controlled.

Currently, crops with high economic value are often produced efficiently in closed or semi-open greenhouses, but high temperatures in summer and low temperatures in winter remain critical factors that affect crop growth and production costs. is an element. Therefore, if there is an automatic root system environment control system that provides optimum temperature, humidity, air and nutrients for crops, it will be possible to improve plant growth and increase production efficiency, as well as to locally control temperature and water. It can achieve the effect of controlling, meet the purpose of saving energy, reducing production costs and improving the efficiency of water resource use.

One embodiment of the present invention provides an air supply device including a gas storage unit for storing pressurized gas, a liquid storage device including a liquid storage unit for storing liquids including water and liquid fertilizer, and an air supply device. and at least one humidifying device connected to the liquid supply device by a pipe line, one of which is provided between the air supply device and the humidification device and is used to control the temperature of the pressurized gas, and the other is connected to the fluid supply device. Two temperature control devices are provided between the liquid device and the humidifying device and are used to control the temperature of the liquid, and a temperature control device is electrically connected to the two temperature control devices and is used to control the temperature of the pressurized gas and the humidification device. a processing module for controlling two temperature control devices to adjust the pressure of the pressurized gas, the delivery amount of the pressurized gas, the temperature of the liquid and the delivery amount of the liquid; Provides a cultivation structure with automatic control.

According to the cultivation structure using automatic control of liquid fertilizer, humidity, temperature, and air, the pressurized gas may include oxygen, nitrogen, and carbon dioxide.

According to the cultivation structure using automatic control of liquid fertilizer, humidity, temperature, and air, the pressure of the pressurized gas may be 0.1 Bar to 2.0 Bar, and the temperature of the pressurized gas may be 10°C to 30°C. Often the temperature of the liquid may be between 10°C and 30°C.

According to the cultivation structure using automatic control of liquid fertilizer, humidity, temperature, and air, the humidifier may be a pneumatic humidifier, an ultrasonic humidifier, or an electrically heated humidifier.

According to the cultivation structure using automatic control of liquid fertilizer, humidity, temperature, and air, the humidifying device has a gas inlet connected to the air supply device through a pipe, a neck portion, and a water vapor outlet, and the diameter of the humidifying device is the same as that of the neck portion. The liquid supply pipe may include a main body that gradually increases in size from the bottom toward the water vapor outlet, and a liquid feeding pipe that is provided between the main body and the liquid supply device and communicates with the neck of the main body.

As a result, the cultivation structure of the present invention that automatically controls liquid fertilizer, humidity, temperature, and air controls the temperature control device using the processing module to control the temperature, pressure, and delivery amount of the pressurized gas, as well as the temperature and delivery amount of the liquid. In addition to adjusting the liquid fertilizer and further mixing the pressurized gas and liquid, a humidifier blows out a water-containing gas with a high water content, so that the liquid fertilizer of the present invention and the cultivation structure with automatic control of humidity, temperature, and air can be used later. When applied to cultivation, it can effectively provide an optimal growth environment for plants and further improve cultivation efficiency.

Another embodiment of the present invention is a cultivation structure with a crop cultivation bed containing a solid cultivation medium, a liquid fertilizer provided adjacent to and in communication with the crop cultivation bed, automatic control of humidity, temperature, and air, the cultivation structure comprising: a crop cultivation bed containing a solid cultivation medium; an air supply device comprising a gas storage unit for storing gas; a liquid supply device comprising at least one liquid storage unit for storing at least one liquid including water and liquid fertilizer; an air supply device and a liquid supply device at least one humidification device connected by a pipe to the solid cultivation medium for adding water-containing gas to the solid cultivation medium, one of which is provided between the air supply device and the humidification device and for controlling the temperature of the pressurized gas. two temperature control devices, the other of which is provided between the liquid supply device and the humidification device, and which is used to control the temperature of the liquid, and electrically connected to the two temperature control devices, a processing module for controlling two temperature control devices to adjust the temperature of the pressurized gas, the pressure of the pressurized gas, the delivery amount of the pressurized gas, the temperature of the liquid, or the delivery amount of the liquid; , a cultivation structure with automatic control of humidity, temperature, and air, and a sensor provided adjacent to the humidifier to detect the temperature and humidity of the solid cultivation medium and to issue an adjustment signal based on the temperature and humidity. , is signally connected to the processing module and the sensor, receives the adjustment signal, and based on the adjustment signal, the processing module is informed of the temperature of the pressurized gas, the pressure of the pressurized gas, the amount of pressurized gas delivered, the temperature of the liquid, Provided is a cultivation system that controls liquid fertilizer, humidity, temperature, and air, and includes a control device that adjusts the amount of liquid delivered or the relative humidity of water-containing gas.

According to the cultivation system using liquid fertilizer, humidity, temperature, and air control, the pressurized gas may include oxygen, nitrogen, and carbon dioxide.

According to the cultivation system using liquid fertilizer, humidity, temperature, and air control, the pressure of the pressurized gas may be 0.1 Bar to 2.0 Bar, and the temperature of the pressurized gas may be 10° C. to 30° C. , the temperature of the liquid may be between 10° C. and 30° C., and the relative humidity of the water-containing gas may be between 50% and 98%.

According to the liquid fertilizer, humidity, temperature, and air controlled cultivation system, the solid cultivation medium may be sand, perlite, peat soil, coir, or a combination thereof.

According to the cultivation system with liquid fertilizer, humidity, temperature and air control, the number of liquid storage units may be two, one liquid storage unit being used to store water and the other liquid storage unit being used to store water. The unit is used to store liquid fertilizer.

According to the cultivation system using liquid fertilizer, humidity, temperature, and air control, the humidifier may be a pneumatic humidifier, an ultrasonic humidifier, or an electric heat humidifier.

According to the cultivation system using liquid fertilizer, humidity, temperature, and air control, the humidifying device has a gas inlet connected to the air supply device via a pipe, a neck portion, and a water vapor outlet, and the diameter of the humidifying device is the same as that of the neck portion. The liquid supply pipe may include a main body that gradually increases in size from the main body toward the water vapor outlet, and a liquid feeding pipe that is provided between the main body and the liquid supply device and communicates with the neck portion of the main body.

As a result, the cultivation system of the present invention that controls liquid fertilizer, humidity, temperature, and air detects the moisture content, liquid fertilizer content, and temperature of the solid cultivation medium in the crop cultivation bed using the sensor, and issues an adjustment signal to the control device. after receiving the adjustment signal, controls the processing module of the cultivation structure with automatic control of liquid fertilizer, humidity, temperature, and air to adjust the temperature, pressure, and delivery amount of pressurized gas, and the temperature and delivery amount of liquid; The liquid fertilizer, humidity, temperature, and air-controlled cultivation system of the present invention supplies the liquid fertilizer to the roots of plants by jetting water-containing gas with high moisture content to the roots of plants using a humidifier after mixing pressurized gas and liquid. It can directly provide the right amount of fertilizer, moisture and air with oxygen content close to the atmospheric oxygen content, and can further provide the optimal growth environment for plants, and is further applied to automatic field management to achieve high cultivation efficiency. can do.

The following description of the accompanying drawings is intended to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood.
FIG. 1 is a schematic architecture diagram showing a cultivation structure using automatic control of liquid fertilizer, humidity, temperature, and air in an embodiment of the present invention. It is a schematic architecture diagram showing a cultivation system using liquid fertilizer, humidity, temperature, and air control in another embodiment of the present invention. FIG. 3 is a schematic operational diagram showing the cultivation system of FIG. 2 using liquid fertilizer, humidity, temperature, and air control. It is a schematic diagram which shows application to a field of the cultivation system by controlling liquid fertilizer, humidity, temperature, and air in another embodiment. FIG. 5 is another schematic diagram showing the application of the cultivation system of FIG. 4 using liquid fertilizer, humidity, temperature, and air control to a field.

The purpose of the present invention is to directly provide plant roots with an appropriate amount of fertilizer, moisture, and air with an oxygen content close to that of the atmosphere, adjust the temperature of plant roots to an optimal range, and further provide an optimal growth environment for plants. In order to achieve high cultivation efficiency, we are developing cultivation equipment and systems that are highly efficient, low cost, and capable of controlling fertilizers, humidity, temperature, and air in the root system environment of crops. It is to provide.

Below, each embodiment of the invention will be discussed in more detail. However, this embodiment may be applied with a variety of inventive concepts and may be specifically implemented in a variety of different specific areas. Particular embodiments are illustrative only and are not limiting to the scope disclosed.

Please refer to FIG. 1, which is a schematic architecture diagram showing a cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air in one embodiment of the present invention. The cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air includes an air supply device 110, a liquid supply device 120, a humidification device 130, a temperature control device 111, a temperature control device 121, a processing module 140, including.

The air supply device 110 includes a gas storage unit (not shown) for storing pressurized gas. In particular, the air supply device 110 may be a commercially available storage facility for storing gas and releasing the gas as needed, and the gas storage unit may be built into the air supply device 110 or may be a separate unit. However, the present invention is not limited thereto. The pressurized gas may also include oxygen, nitrogen and carbon dioxide to provide the right amount of gas for the plant's rhizosphere. In detail, an appropriate amount of oxygen allows plant root systems to grow healthily, an appropriate amount of nitrogen is fixed by nitrogen-fixing bacteria that live symbiotically in the roots of plants and is converted into fertilizer, and an appropriate amount of carbon dioxide supports the roots of plants. Although it contributes to adjusting the microenvironment of the sphere, the invention is not limited thereto.

The liquid supply device 120 includes a liquid storage unit (not shown) for storing liquids including water and liquid fertilizer. In particular, the liquid supply device 120 may be a commercially available storage facility for storing liquid and releasing the liquid as needed, and the liquid storage unit may be built into the liquid supply device 120 or may be a separate unit. However, the present invention is not limited thereto. It should be noted that the liquid of the present invention includes water and liquid fertilizer, and water and liquid fertilizer may be stored separately in different liquid storage units for later use, or optionally in a single liquid storage. It may be stored in a unit, but the invention is not limited thereto.

The humidifier 130 is connected to the air supply device 110 and the liquid supply device 120 via a pipe. The humidifying device 130 may be a pneumatic humidifying device, an ultrasonic humidifying device, or an electrothermal humidifying device, but the present invention is not limited thereto.

The temperature control device 111 is provided between the air supply device 110 and the humidification device 130 and is used to control the temperature of the pressurized gas. and is used to control the temperature of the liquid. Specifically, in the cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air according to the present invention, the temperature control device 111 and the temperature control device 121 are the same device, and each controls the pressure of the pressurized gas in the air supply device 110. In order to monitor and adjust the temperature and the temperature of the liquid in the liquid supply device 120, it includes a temperature control module and a temperature monitoring module that can control temperature increase and decrease. It should be noted that the temperature control module and temperature monitoring module of the present invention are conventional devices in this field, and the details thereof will not be further described here.

The processing module 140 is electrically connected to the temperature control device 111 and the temperature control device 121, and adjusts the temperature of the pressurized gas, the pressure of the pressurized gas, the amount of pressurized gas delivered, the temperature of the liquid, or the amount of delivered liquid. It is used to control the temperature control device 111 and the temperature control device 121 so that the temperature control device 111 and the temperature control device 121 are controlled. Preferably, in the cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air according to the present invention, the pressure of the pressurized gas may be 0.1 Bar to 2.0 Bar, and the temperature of the pressurized gas may be 10° C. to 2.0 Bar. Although it may be 30°C, the temperature of the liquid may be between 10°C and 30°C.

In the embodiment shown in FIG. 1, the humidifying device 130 includes a main body 131 and a liquid feeding pipe 135. The main body 131 has a gas inlet 133 connected to the air supply device 110 via a pipe line, a neck portion 132, and a water vapor outlet 134, and its diameter gradually increases from the neck portion 132 toward the water vapor outlet 134. The liquid feeding pipe 135 is provided between the main body 131 and the liquid supply device 120 and communicates with the neck portion 132 of the main body 131. This supplies the plants with water-containing gas at appropriate relative humidity and temperature.

As a result, the cultivation structure 100 of the present invention that automatically controls liquid fertilizer, humidity, temperature, and air controls the temperature control device 111 and the temperature control device 121 by the processing module 140, and further controls the temperature, pressure, and delivery amount of the pressurized gas. , and adjust the temperature and delivery amount of the liquid, and furthermore, after mixing the pressurized gas and the liquid, the humidifier 130 blows out water-containing gas with a high moisture content to the plants. In addition, the air temperature or the temperature in the soil can be effectively adjusted, and when the liquid contains liquid fertilizer, it can also provide suitable fertilizer for plants, and the liquid fertilizer, humidity, temperature, and air of the present invention can be automatically controlled. When the controlled cultivation structure 100 is later applied to cultivation, it can provide the plants with an optimal growth environment, and the cultivation efficiency can be greatly improved, which has applicability in related markets.

Please refer to FIG. 2, which is a schematic architecture diagram illustrating a cultivation system 200 with liquid fertilizer, humidity, temperature, and air control in another embodiment of the present invention. A cultivation system 200 that controls liquid fertilizer, humidity, temperature, and air includes a crop cultivation bed 210, a cultivation structure 100 that automatically controls liquid fertilizer, humidity, temperature, and air, a sensor 220, and a control device 230.

Crop growing bed 210 includes solid growing medium 211 . In detail, the plants 10 are grown on a solid cultivation medium 211, which is made of sand, perlite, peat moss, coir, or air-permeable and water-permeable material. Other materials having excellent properties may be used, or combinations of the above materials may be used, but the present invention is not limited thereto.

A cultivation structure 100 that automatically controls liquid fertilizer, humidity, temperature, and air is provided adjacent to and communicates with a crop cultivation bed 210, and is connected to an air supply device 110, a liquid supply device 120, a humidification device 130, and a temperature control system. It includes a control device 111, a temperature control device 121, and a processing module 140. Specifically, the cultivation system 200 by controlling the liquid fertilizer, humidity, temperature, and air of the present invention uses the liquid fertilizer, humidity, The cultivation structure 100 with automatic control of temperature and air is applied to a field, and for details of the elements and architecture of the cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air, please refer to the explanation in the preamble. I won't repeat it here. In addition, in the cultivation system 200 that controls liquid fertilizer, humidity, temperature, and air according to the present invention, the humidifier 130 of the cultivation structure 100 that automatically controls liquid fertilizer, humidity, temperature, and air has a water vapor outlet 134 as shown in FIG. The crop cultivation bed 210 may be provided opposite the roots of the plants 10, and the water plume outlet 134 may be provided below the plants 10 from the bottom upwards towards the roots of the plants 10; It may be provided at any position in the crop cultivation bed 210 as necessary to achieve the desired cultivation efficiency. Furthermore, the number of humidifiers 130 may be one, two, or more than one, as required, but the present invention is not limited thereto.

Please refer to FIG. 3, which is a schematic operational diagram showing the cultivation system 200 of FIG. 2 that controls liquid fertilizer, humidity, temperature, and air. As shown in FIG. 3, when the liquid 30 in the liquid supply device 120 enters the neck portion 132 of the main body 131 via the liquid sending pipe 135, the liquid 30 is drawn into the main body 131 by a siphon phenomenon, and At step 132, the water-containing gas is mixed with the pressurized gas 20 and uniformly distributed in the pressurized gas 20 to form a water-containing gas with a relative humidity of 50% to 98%. Water vapor exits from outlet 134 and enters solid cultivation medium 211 to provide fertilizer, moisture and air. As a result, the rhizosphere environment of the plant 10 can be maintained at a relative humidity of about 80%, the temperature change range of the solid cultivation medium 211 can be maintained within ±2°C, and the root zone of the plant 10 can be maintained at a relative humidity of about 80%. To improve oxygen content and provide optimal growth conditions for plants 10 to increase their resistance to environmental stresses and diseases, and further reduce the use of pesticides and have applicability in relevant markets. I can do it.

The sensor 220 is provided adjacent to the humidifier 130 and is used to detect the temperature and humidity of the solid cultivation medium 211 and to issue an adjustment signal based on the temperature and humidity. However, it should be explained that in addition to being provided adjacent to the humidifier 130 as shown in FIG. However, the present invention is not limited thereto.

The control device 230 is signally connected to the processing module 140 and the sensor 220, receives the adjustment signal, and controls the processing module 140 based on the adjustment signal to control the temperature of the pressurized gas 20, the pressure of the pressurized gas 20, and the pressurization. The amount of gas 20 delivered, the temperature of liquid 30, the amount of liquid 30 delivered, or the relative humidity of water-containing gas is adjusted.

Specifically, according to current commercially available cultivation methods, water is applied directly to the roots of plants in liquid form, but the plants cannot completely absorb the water supplied from outside in a short period of time, causing the water to drain into the cultivation bed. They can be left behind and inhibit the respiration of plant roots, or they can be washed away directly, causing wastage of water resources and fertilizers. Furthermore, if liquid fertilizer is applied directly to the roots of plants, the plants will not be able to absorb it completely in a short period of time, and the excess liquid fertilizer will accumulate in the soil, and the long-term accumulation of fertilizer will further acidify the soil and hinder plant growth. and even cause plant death. Therefore, the cultivation system 200 using liquid fertilizer, humidity, temperature, and air control according to the present invention further includes a sensor 220, which measures numerical values such as fertilizer content, moisture content, and soil temperature in the solid cultivation medium 211, respectively. The controller 230 includes a soil electrical conductivity (also called EC value) detection module, a humidity detection module, and a temperature detection module to detect and output an adjustment signal, and the controller 230 processes the adjustment signal after receiving it. further controlling the module 140 to adjust the temperature of the pressurized gas 20, the pressure of the pressurized gas 20, the delivery amount of the pressurized gas 20, the temperature of the liquid 30, the delivery amount of the liquid 30, and the relative humidity of the water-containing gas; Furthermore, the cultivation conditions are accurately controlled to allow the plants 10 to grow healthily.

Please refer to FIGS. 4 and 5. FIG. 4 is a schematic diagram showing application of a cultivation system 300 using liquid fertilizer, humidity, temperature, and air control to a field in another embodiment, and FIG. FIG. 4 is another schematic diagram showing the application of the cultivation system 300 using liquid fertilizer, humidity, temperature, and air control in No. 4 to a field. A cultivation system 300 that controls liquid fertilizer, humidity, temperature, and air includes a crop cultivation bed 310, a cultivation structure 400 that automatically controls liquid fertilizer, humidity, temperature, and air, a sensor 320, and a control device 330. The cultivation structure 400 with automatic control of liquid fertilizer, humidity, temperature, and air includes an air supply device 410, a liquid supply device 420a, a liquid supply device 420b, and a humidifier 430, and includes the liquid fertilizer, humidity, and temperature of FIG. , the crop cultivation bed 310 of the cultivation system 300 with air control, the cultivation structure 400 with automatic control of liquid fertilizer, humidity, temperature, and air, the sensor 320, and the control device 330 in FIG. It is similar to the crop cultivation bed 210 of the cultivation system 200, the cultivation structure 100 with automatic control of liquid fertilizer, humidity, temperature, and air, the sensor 220, and the control device 230, but with the exception of the number of liquid supply devices 120, the arrangement of their pipes, and the humidification device 130. For the same structure and details, please refer to the preamble and will not be repeated here.

As shown in FIGS. 4 and 5, a cultivation system 300 that controls liquid fertilizer, humidity, temperature, and air is installed in a greenhouse 40, but the crop cultivation bed 310 has an external environment that uses liquid fertilizer, humidity, temperature, and air. Elevated cultivation is performed in the greenhouse 40 so as to prevent the control efficiency of the cultivation environment by the cultivation system 300 from being affected. In the embodiment of FIG. 4, the liquid supply device 420a and the liquid supply device 420b are provided independently, and are used to store water and liquid fertilizer, respectively. In detail, when water and liquid fertilizer are stored separately, the control device 330 can adjust the delivery amount of water and liquid fertilizer separately according to the actual needs, and also control the liquid fertilizer, humidity, temperature, air of the present invention. The cultivation system 300 allows for more precise control of moisture and liquid fertilizer application, as well as liquid fertilizer, humidity and temperature control for crops grown on a large scale, increasing its applicability in related markets. have

Although the present invention has been disclosed above by way of embodiments, it is not limited thereto, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is based on the content specified in the following claims.

100, 400 Cultivation structure with automatic control of liquid fertilizer, humidity, temperature, and air 110, 410 Air supply device 111, 121 Temperature control device 120, 420a, 420b Liquid supply device 130, 430 Humidification device 131 Main body 132 Neck portion 133 Gas inlet 134 Water mist outlet 135 Liquid pipe 140 Processing module 200, 300 Cultivation system using liquid fertilizer, humidity, temperature, and air control 210, 310 Crop cultivation bed 211 Solid cultivation medium 220, 320 Sensor 230, 330 Control device 10 Plant 20 Pressurized gas 30 Liquid 40 Greenhouse

Claims (5)

a crop cultivation bed containing a solid cultivation medium;
A cultivation structure with automatic control of liquid fertilizer, humidity, temperature, and air provided adjacent to and communicating with the crop cultivation bed, comprising: an air supply device including a gas storage unit for storing pressurized gas; a liquid supply device comprising at least one liquid storage unit for storing at least one liquid comprising a liquid fertilizer; and a liquid supply device connected by a line to the air supply device and the liquid supply device to supply a water-containing gas to the solid cultivation medium. at least one humidifying device for adding gas, one provided between the air supply device and the humidifying device and used to control the temperature of the pressurized gas, and the other being provided between the fluid supply device and the humidifying device; two temperature control devices provided between the humidifier and used to control the temperature of the liquid; and two temperature control devices electrically connected to the two temperature control devices and used to control the temperature of the pressurized gas, the a processing module for controlling the two temperature control devices so as to adjust the pressure of the pressurized gas, the delivery amount of the pressurized gas, the temperature of the liquid, or the delivery amount of the liquid; A cultivation structure with automatic control of humidity, temperature, and air,
a sensor disposed adjacent to the humidifier for detecting the temperature and humidity of the solid cultivation medium and emitting an adjustment signal based on the temperature and the humidity;
signally connected to the processing module and the sensor to receive the adjustment signal and, based on the adjustment signal, to the processing module to determine the temperature of the pressurized gas, the pressure of the pressurized gas, and the pressurized gas. a control device that adjusts the delivery amount of the liquid, the temperature of the liquid, the delivery amount of the liquid, or the relative humidity of the water-containing gas;
A cultivation system with liquid fertilizer, humidity, temperature and air control comprising: said at least one humidification device being used with a solid cultivation medium, said solid cultivation medium for cultivating plants off the ground; , and the solid cultivation medium is sand, perlite, peat soil, coir or a combination thereof, the pressure of the pressurized gas is 0.1 Bar to 2.0 Bar, and the temperature of the pressurized gas is 10 ℃~30℃, the temperature of the liquid is 10℃~30℃, and the relative humidity of the water-containing gas is 50%~98%, a cultivation system using liquid fertilizer, humidity, temperature, and air control. . 2. The cultivation system according to claim 1 , wherein the pressurized gas contains oxygen, nitrogen, and carbon dioxide. The number of the liquid storage units is two, and one of the liquid storage units is used to store the water, and the other liquid storage unit is used to store the liquid fertilizer . A cultivation system using liquid fertilizer, humidity, temperature, and air control as described in . The cultivation system according to claim 1 , wherein the humidifier is a pneumatic humidifier, an ultrasonic humidifier, or an electric heat humidifier. The humidifier includes:
a main body having a gas inlet connected to the air supply device through a pipe line, a neck portion, and a water vapor outlet, the diameter of which gradually increases from the neck portion toward the water vapor outlet;
a liquid feeding pipe provided between the main body and the liquid supply device and communicating with the neck part of the main body;
A cultivation system using the liquid fertilizer according to claim 1 , controlling humidity, temperature, and air.