CN114223527A - Hydroponic crop irrigation system and method based on Internet of things - Google Patents
Hydroponic crop irrigation system and method based on Internet of things Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003973 irrigation Methods 0.000 title description 3
- 230000002262 irrigation Effects 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 235000015097 nutrients Nutrition 0.000 claims abstract description 61
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000016709 nutrition Nutrition 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 230000035764 nutrition Effects 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 90
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 31
- 230000012010 growth Effects 0.000 claims description 29
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 20
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 20
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 15
- 241000209524 Araceae Species 0.000 claims description 14
- 229910019142 PO4 Inorganic materials 0.000 claims description 11
- 230000008635 plant growth Effects 0.000 claims description 7
- 239000013589 supplement Substances 0.000 claims description 7
- 244000193174 agave Species 0.000 claims description 6
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 201000010099 disease Diseases 0.000 claims description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 229960002645 boric acid Drugs 0.000 claims description 3
- 235000010338 boric acid Nutrition 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- 229960000355 copper sulfate Drugs 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 238000003306 harvesting Methods 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229940099596 manganese sulfate Drugs 0.000 claims description 3
- 239000011702 manganese sulphate Substances 0.000 claims description 3
- 235000007079 manganese sulphate Nutrition 0.000 claims description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000006855 networking Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 9
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- 244000252337 Epipremnum pinnatum Species 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
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- 235000017491 Bambusa tulda Nutrition 0.000 description 5
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- 241000746976 Agavaceae Species 0.000 description 4
- 241000209128 Bambusa Species 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000034994 death Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 244000063525 Dracaena braunii Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 244000209526 Anthurium andraeanum Species 0.000 description 1
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- 230000003213 activating effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 230000009036 growth inhibition Effects 0.000 description 1
- 239000003501 hydroponics Substances 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
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- 230000017074 necrotic cell death Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Environmental Sciences (AREA)
- Hydroponics (AREA)
Abstract
The invention provides a hydroponic planting system and a hydroponic planting method based on the Internet of things, wherein the system comprises: the device comprises a moving device, a controller, a planting bed body, a main tank, a nutrition tank, a pH tank, an oxygen tank, a water pump, an electromagnetic valve S1, an electromagnetic valve S2 and a pH sensor; the mobile device is provided with an application APP, and the application APP is connected with the controller through the Internet of things. Plants or crops to be planted are placed on the planting bed body; the water pump is used for pumping water in the main tank into the nutrition tank; when the electromagnetic valve S1 is conducted, the nutrient water in the nutrient tank enters the pH tank; the pH sensor is arranged in the pH tank and used for detecting the pH value and sending the pH value to the application APP, if the pH value meets the condition, the oxygen tank is filled with the nutrient water, and a user is informed in the application APP that the nutrient water provided for plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water.
Description
Technical Field
The invention relates to an agricultural production technology, in particular to a hydroponic crop irrigation system and method based on the Internet of things.
Background
The water planting is one kind of soilless culture, and belongs to the field of plant cultivating technology. Many culture substrates, air provides oxygen, moisture, nutrients. Soaking in mineral solution for terrestrial plant root growth or inert medium such as perlite or gravel.
The pH value affects the overall utilization rate of nutrients, and the important nutrient components and the pH value of the plants are kept at a certain level, so that the plants can better absorb the nutrients.
Disclosure of Invention
In view of the problems in the prior art, one of the objects of the present invention is to remotely control hydroponic planting of plants or crops based on the internet of things. In order to achieve the purpose, the invention adopts the following technical scheme:
a hydroponic growing system based on the Internet of things, the system comprising: the device comprises a moving device, a controller, a planting bed body, a main tank, a nutrition tank, a pH tank, an oxygen tank, a water pump, an electromagnetic valve S1, an electromagnetic valve S2 and a pH sensor;
the mobile device is provided with an application APP, the application APP is connected with the controller through the Internet of things, and a user can realize remote control through the application APP and receive a notification sent by the controller;
plants or crops to be planted are placed on the planting bed body;
the water pump is used for pumping water in the main tank into the nutrition tank;
when the electromagnetic valve S1 is conducted, the nutrient water in the nutrient tank enters the pH tank;
the pH sensor is arranged in the pH tank and used for detecting the pH value and sending the pH value to the application APP, if the pH value meets the condition, the oxygen tank is filled with the nutrient water, and a user is informed in the application APP that the nutrient water provided for plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water.
Preferably, a water level sensor is arranged in the nutrition tank, and when the water level sensor detects that the water level reaches a preset water level, the water pump stops working.
Preferably, the preset water level can be adjusted according to the ratio of the nutrient solution of the selected plant or crop.
Preferably, the system further comprises a temperature and humidity sensor for detecting the temperature and humidity of the environment and displaying a reading in the application APP.
Preferably, the system further comprises a camera for monitoring the growth of the crop and updating the APP; the camera detects that the plants or crops are mature, and sends a notice to a user to prepare for harvesting the plants; after the camera detects plant or crops disease, send the alarm to the user through using APP.
Preferably, said system also comprises an ultraviolet lamp, which is automatically turned on if there is no sunlight, and displays a "lamp" sign on said application APP.
Preferably, the qualified pH value is 5.5-6.5.
A method of hydroponically growing plants and/or crops using the above system, the method comprising the steps of:
step 1: selecting plants or crops needing to be planted by the user through the application APP;
step 2: the water pump is used for pumping water in the main tank into the nutrition tank;
and step 3: controlling the electromagnetic valve S1 to be conducted, and enabling nutrient water in the nutrient tank to enter the pH tank; if the pH value meets the conditions, the oxygen tank is filled with nutrient water, and the user is informed in the application APP that the nutrient water provided for the plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water.
Preferably, in the step 2, when the water level reaches a preset level, the water pump stops working.
Preferably, the method further comprises step 4: the growth of the crop is monitored and the APP is updated.
In another aspect of the present invention, there is provided a nutrient solution suitable for hydroponic plants, the nutrient solution comprising: sulfate ions and ammonium dihydrogen phosphate, the hydroponic plant comprising a plant of the family Araceae; wherein the molar ratio of the sulfate ions to the ammonium dihydrogen phosphate is (0.1-0.3): 1.
preferably, the nutrient solution comprises: calcium nitrate, ferrous sulfate, magnesium sulfate, ammonium dihydrogen phosphate, boric acid, manganese sulfate, copper sulfate and zinc sulfate.
Preferably, wherein the hydroponic plant further comprises a plant of the agave family. And selecting parameters including stem length, stem diameter and the like to evaluate the growth condition of the hydroponic plant.
Another aspect of the present invention is to provide an internet-of-things-based hydroponic growing system, which includes a pH sensor, and when the pH sensor detects that the pH value is lower than a threshold value, for example, lower than pH 5.7, the pH sensor enters a low pH mode and starts a nutrient solution supplement mode, specifically including adjusting ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is (0.1-0.3) to 1; wherein the hydroponic plant comprises plant of Araceae. When the pH sensor 9 detects a pH value above a threshold value, e.g. aboveOr when the pH value is equal to 5.7, the normal mode is entered, and the nutrient solution supplement mode is closed. Adjusting ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is (0.05-0.08): 1. Wherein the pH sensor may be any one of the pH sensors described above, including in particular that the pH sensor is arranged in the pH tank, the pH sensor being arranged to detect a pH value and to send the pH value to the application APP, and to fill the oxygen tank with nutrient water if the pH value is in condition.
Preferably, the hydroponic plant comprises an Araceae plant and/or an Agavaceae plant.
Compared with the prior art, the invention at least has the following beneficial effects:
(1) according to the invention, the nutrient solution for water culture is kept at a proper pH value through the remote application APP control based on the Internet of things. In the prior art, the adjustment of the pH value is not intelligent, the reference value is usually given to the pH value in the period of time by experience, but the obstacle is brought to the fine growth management of the crop growth, particularly to the water culture effect. The influence on temperature, humidity and pH value in the water culture environment is large, and real-time fine management is needed. The pH sensor and the pH tank can sense the change of the pH value in real time.
(2) The invention researches the slight change and influence of nutrient solutions with different proportions on the growth of plants in different families in a water culture environment. A large number of experiments show that the growth of partial plants can be promoted by adjusting the proportion of partial components in the nutrient solution under the condition of reasonable pH value and lower environment, but the growth of other kinds of plants can not be obviously inhibited. For example, ammonium dihydrogen phosphate (NH) in the nutrient solution4H2PO4) With sulfate radicals
The molar ratio is adjusted to 0.1-0.3: 1. It should be noted that the above ratio is long for those skilled in the artThe results obtained in the experiment. In addition, in the prior art, when the growth of crops is affected by the lower pH value in the water culture environment, the direction of increasing the pH value is often adopted for correction. However, such a "knife cut" approach is not conducive to the growth of other crops that may be suitable for pH. According to the remote control system based on the Internet of things, the requirement for refined crop culture can be met, and the problem that the nutrient solution is lack of classified proportion is solved, so that the nutrient solution proportion of different crops can be changed, and the purposes of differentiation and refined management are achieved.
(3) The invention establishes a relation between the pH value and the dosage of the nutrient water filled into the oxygen tank. The prior art control of the pH, i.e. the pH value, consists in controlling the pH value within a reasonable range, for example within the range of 5.5-6.5, to meet all pH requirements for growth. However, different plants do not actually require such a wide range of values for pH. When the measured value of a certain plant exceeds the proper pH value range, the activity of the plant root system is inhibited, and even the root system is necrotized in serious cases, thereby leading to the death of the whole plant. However, it is not practical and difficult to achieve any plant action within a suitable pH range. Therefore, other supplement modes need to be found under the condition of the pH value in a large range so as to meet the requirement of the growth of a small part of crops. Experiments have shown that this aspect is particularly important in acidic environments. The method mainly aims at that the supplied nutrient water is respectively tested under two extreme value modes to obtain compensation modes under different modes. Setting the pH value to be in a low pH value mode of 5.5-5.7, and activating a nutrient water supplement mode, so that the development of plant roots can be promoted.
(4) The invention informs the user through the APP and the remote application APP, so that the user makes a decision of remedial measures and the crops are protected from being damaged. The interconnection of the Internet of things and the growth of the hydroponic crops is achieved.
Drawings
FIG. 1 is a flow diagram of the present invention.
The present invention is described in further detail below. The following examples are merely illustrative of the present invention and do not represent or limit the scope of the claims, which are defined by the claims.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
To better illustrate the invention and to facilitate the understanding of the technical solutions thereof, typical but non-limiting examples of the invention are as follows:
example 1:
fig. 1 is a block diagram of a hydroponic planting system based on the internet of things. The system is including removing end and long-range end, removes the end and includes mobile device 1, long-range end including controller 2, plant bed body 3, main jar 4, nutrition jar 5, pH jar 6, oxygen jar 7, water pump 8, solenoid valve S1, solenoid valve S2, pH sensor 9, temperature and humidity sensor 10, camera 11 and power supply unit, wherein power supply unit provides the power for each unit of above long-range end.
The mobile device 1 is provided with an application APP, the application APP is connected with the controller 2 of the remote end through the Internet of things, and a user can realize each unit of remote control through the application APP and receive the notification sent by the remote end.
And plants or crops needing to be planted are selected by a user on the APP and placed on the planting bed body 3.
The main tank 4 stores irrigation water.
The nutrition tank 5 stores nutrient solution.
The oxygen tank 7 stores oxygen.
The water pump 8 is used for pumping the water in the main tank 4 into the nutrition tank 5.
A water level sensor 51 is arranged in the nutrition tank 5, and when the water level sensor 51 detects that the water level reaches a preset water level, the water pump 8 stops working. Preferably, the preset water level can be adjusted according to the ratio of the nutrient solution of the selected plant or crop.
When the electromagnetic valve S1 is conducted, the nutrient water in the nutrient tank 5 enters the pH tank 6.
A pH sensor is arranged in the pH tank 6 and used for detecting the pH value and sending the pH value to an application APP, if the pH value meets the condition, the oxygen tank 7 is filled with nutrient water, and a user is informed in the application APP that the nutrient water provided for plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water. Preferably, the pH value is in accordance with the condition of 5.5 to 6.5.
The temperature and humidity sensor 10 is used for detecting the temperature and humidity of the environment and displaying the readings in the APP.
The camera 11 is used for monitoring the growth of crops and updating and applying APP. If the plant or crop is mature, a notification is sent to the user that the plant is ready for harvest. After the camera 11 detects plant or crop diseases, an alarm is sent to a user through the APP. The plant diseases can be detected by utilizing an image processing technology, the shot images are compared with the existing images in the database, whether the plants or crops are affected or not is judged, and if the plants or crops are infected with the diseases, infection details are notified to a user through the application of APP.
The remote end is also provided with an ultraviolet lamp 12, if there is no sunlight, said ultraviolet lamp 12 is automatically turned on and displays a "lamp" sign on the APP application.
Example 2:
this embodiment refers to the previous embodiment 1, and the same portions as those in embodiment 1 are not described herein again. Only the same portions as those of embodiment 1 will be described here.
Although the pH value range adapted by different plants is different, the pH value of the plant rhizosphere is generally required to be between 5.4 and 6.3, and is higher or lower than the range, the activity of the plant root system is inhibited, and in severe cases, the root system is even necrotized, thereby leading to the death of the whole plant.
Firstly, a low pH mode with a pH value of 5.5-5.7 is set. Then 5 common hydroponic plants were selected as the subjects for pH adjustment. The 3 hydroponic plants may be: anthurium, Bambusa, scindapsus aureus. The 3 kinds of hydroponic plants are respectively placed in a low pH value mode for experiment, and several important indexes of plant growth are respectively observed by taking days as a unit for experimental observation. The dosage and the components of each nutrient solution are kept consistent in the experimental process.
For plant growth parameter selection:
root length: the activity of the plant root system is inhibited and in severe cases even root necrosis is caused, thereby leading to death of the whole plant. However, for hydroponic plants, the root length below the water surface is inconvenient to measure, so the paddling length is selected to be used for measurement instead of the root length. When the growth of roots is inhibited, the growth rate of the stem must be affected, slowing down or even stopping.
Root diameter is coarse: for root measurement, 10 roots are generally randomly selected, closely arranged in a row on a table top with a small amount of water, and trimmed at the top with a knife. The thickness of ten roots was measured with a small ruler and recorded. However, for hydroponics plants, the root thickness measurement is inconvenient, so the diameter is selected instead.
In the following experiment, the length of the leaf in the long axis direction and the width of the leaf in the short axis direction were selected as auxiliary parameters, in addition to the two parameters of the length and the diameter of the stem. It should be noted in particular that the selection of the above parameters is also a targeted selection in order to meet the specificity of the hydroponic plant. The stem length and diameter are selected specifically for the hydroponic environment of the families Araceae and agave. Because other conventional parameters are selected for measurement, on one hand, the water culture environment is damaged due to conditions, and in addition, the measurement precision cannot be guaranteed. This is one of the points of the present invention.
Plant name: anthurium (Tiannanxinke)
TABLE 1 plant growth monitoring table for anthurium under low pH mode
From the above observations of the junction 16, it can be seen that in hydroponic anthurium, the growth was arrested more in the low pH mode, and was about 15% less than the values for each parameter in the pH at the median pH of 6.0.
Plant name: rich and honour bamboo (Agave orchid family)
Table 2 table for monitoring growth of plants in low pH mode of bamboos
From the above observation of the connection 16, it can be seen that the growth inhibition of the hydroponic bamboos is not significant when in the low pH mode, and is substantially equal to each parameter value when the pH is at the median pH of 6.0.
Plant name: scindapsus aureus (Araceae)
Table 3 table of plant growth monitoring of scindapsus aureus in low pH mode
From the above observations of the junction 16, it can be seen that growth was inhibited more for the hydroponic anthurium when in the low pH mode, about 12% less than the respective parameter values at the pH of the median pH of 6.0.
The three plants are selected from water culture plants of different families, including Anthurium andraeanum and scindapsus aureus of Araceae; also comprises dracaena sanderiana of Agavaceae. It is understood that one skilled in the art can select plants from other families for the same type of experiment.
It can be seen from the above experiments that the growth of some species of plants is indeed slightly inhibited in the low pH mode. But has no obvious influence on the growth of partial various plants in a low pH value mode. In particular, in the case of plants of the family Araceae, their growth is partially inhibited. Additional nutrient solution needs to be supplemented to the part of the plant. The original nutrient solution mainly contains calcium nitrate, ferrous sulfate and sulfuric acidMagnesium, ammonium dihydrogen phosphate, boric acid, manganese sulfate, copper sulfate and zinc sulfate. In order to meet the requirement of growth in a low pH value mode and simultaneously not influence the growth of other plants, experiments show that ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The ratio of (1) to (0.1-0.3) to (1) is adjusted by increasing the amount of ammonium dihydrogen phosphate. The use amount of the ammonium dihydrogen phosphate is increased in an acidic environment, the problem that the growth of the plant of the Araceae is inhibited can be effectively relieved, meanwhile, the ammonium dihydrogen phosphate has little influence on the growth of the dracaena sanderiana of the Agavaceae, and the negative effect on the growth of other plants is also solved.
Ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is as follows: stem length and stem diameter measurements at 0.1:1, with other conditions unchanged.
Plant name: anthurium (Tiannanxinke)
Plant name: rich and honour bamboo (Agave orchid family)
Plant name: scindapsus aureus (Araceae)
Ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is as follows: stem length and stem diameter measurements at 0.3:1, with other conditions unchanged.
Plant name: anthurium (Tiannanxinke)
Plant name: rich and honour bamboo (Agave orchid family)
Plant name: scindapsus aureus (Araceae)
From the above experiments and with adjustment of ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
Comparison of the data before the molar ratio shows that the adjustment has a positive effect on promoting the normal growth of the anthurium and the scindapsus aureus, and has no obvious effect on the growth of other plants.
Example 3:
the embodiment refers to the previous embodiments 1 and 2, and the parts identical to those of the embodiments 1 and 2 are not described again here. Only the portions different from embodiment 1 and embodiment 2 are described here.
When the pH sensor 9 detects that the pH value is lower than the threshold value, for example, lower than pH 5.7, the low pH mode is entered, the nutrient solution supplement mode is started, and ammonium dihydrogen orthophosphate (NH) is supplied4H2PO4) With sulfate radicals
The molar ratio is (0.1-0.3): 1. Wherein the hydroponic plant comprises plant of Araceae. When the pH sensor 9 detects a pH value above a threshold value, for example above or equal to pH 5.7, the normal mode is entered and the nutrient replenishment mode is turned off. Ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is (0.05-0.08): 1.
The applicant declares that the present invention illustrates the detailed structural features of the present invention through the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must be implemented depending on the above detailed structural features. It should be understood by those skilled in the art that any modifications of the present invention, equivalent substitutions of selected components of the present invention, additions of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a water planting system based on thing networking which characterized in that: the system comprises: the device comprises a moving device, a controller, a planting bed body, a main tank, a nutrition tank, a pH tank, an oxygen tank, a water pump, an electromagnetic valve S1, an electromagnetic valve S2 and a pH sensor;
the mobile device is provided with an application APP, the application APP is connected with the controller through the Internet of things, and a user can realize remote control through the application APP and receive a notification sent by the controller;
plants or crops to be planted are placed on the planting bed body;
the water pump is used for pumping water in the main tank into the nutrition tank;
when the electromagnetic valve S1 is conducted, the nutrient water in the nutrient tank enters the pH tank;
the pH sensor is arranged in the pH tank and used for detecting the pH value and sending the pH value to the application APP, if the pH value meets the condition, the oxygen tank is filled with the nutrient water, and a user is informed in the application APP that the nutrient water provided for plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water.
2. The system of claim 1, wherein: and a water level sensor is arranged in the nutrition tank, and when the water level sensor detects that the water level reaches a preset water level, the water pump stops working.
3. The system of claim 1, wherein: the system further comprises a temperature and humidity sensor for detecting the temperature and humidity of the environment and displaying the readings in the application APP.
4. The system of claim 1, wherein: the system also comprises a camera for monitoring the growth of the crops and updating the application APP; the camera detects that the plants or crops are mature, and sends a notice to a user to prepare for harvesting the plants; after the camera detects plant or crops disease, send the alarm to the user through using APP.
5. A method for hydroponic cultivation of plants and/or crops using the system of claims 1-4, the method comprising the steps of:
step 1: selecting plants or crops needing to be planted by the user through the application APP;
step 2: the water pump is used for pumping water in the main tank into the nutrition tank;
and step 3: controlling the electromagnetic valve S1 to be conducted, and enabling nutrient water in the nutrient tank to enter the pH tank; if the pH value meets the conditions, the oxygen tank is filled with nutrient water, and the user is informed in the application APP that the nutrient water provided for the plants or crops is ready; if the pH is not in condition, the user is notified to open the solenoid valve S2 to drain the nutrient water.
6. A nutrient solution suitable for hydroponic plants, the nutrient solution comprising: sulfate ions and ammonium dihydrogen phosphate, the hydroponic plant comprising a plant of the family Araceae; wherein the molar ratio of the sulfate ions to the ammonium dihydrogen phosphate is (0.1-0.3): 1.
7. the nutritional liquid of claim 6, further comprising: calcium nitrate, ferrous sulfate, magnesium sulfate, ammonium dihydrogen phosphate, boric acid, manganese sulfate, copper sulfate and zinc sulfate.
8. The method of claim 7, wherein the hydroponic plant further comprises agave and the parameters including stem length, stem diameter, etc. are selected to assess hydroponic plant growth.
9. An internet-of-things-based hydroponic growing system comprises a pH sensor, and when the pH sensor detects that the pH value is lower than a threshold value, for example, lower than pH 5.7, the pH sensor enters a low pH mode and starts a nutrient solution supplement mode, specifically comprising adjusting ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is (0.1-0.3) to 1; wherein the hydroponic plant comprises plant of Araceae; when the pH sensor detects that the pH value is higher than a threshold value, for example, higher than or equal to pH 5.7, the normal mode is entered, and the nutrient solution supplement mode is closed. Adjusting ammonium dihydrogen phosphate (NH)4H2PO4) With sulfate radicals
The molar ratio is (0.05-0.08): 1.
10. The hydroponic growth system of claim 9, wherein the hydroponic plants comprise an araceae plant and/or an agave plant.
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