JP4167591B2 - Fertilizer supply equipment - Google Patents

Description

  The present invention relates to a fertilizer supply apparatus that mixes a plurality of liquid fertilizers with water, adjusts the fertilizer components contained in each liquid fertilizer to a predetermined ratio to form a diluted liquid fertilizer, and supplies the diluted liquid fertilizer to a plant.

A fertilizer supply device has been developed in which a plurality of liquid fertilizers are mixed with water to form diluted liquid fertilizers, which are supplied to plants. (See Patent Document 1)
JP-A-9-47121

  A block diagram of a fertilizer supply device described in this publication is shown in FIG. The apparatus of this figure supplies water to a discharge line 21 by a pump 20. Liquid manure is supplied to the discharge line 21 from the liquid manure pump 22. The liquid fertilizer pump 22 is controlled by the control device 23 to suck the liquid fertilizer stored in the fertilizer tank 24 and supply it to the discharge line 21. This device can control the flow rate at which the liquid fertilizer pump 22 supplies liquid fertilizer with the control device 23 to adjust the fertilizer component and concentration of the diluted liquid fertilizer supplied to the plant.

  This device supplies each fertilizer tank with multiple fertilizers with different fertilizer components and dissolves them in water, or dilutes liquid fertilizer into water to make liquid fertilizer with a predetermined concentration, and controls the flow rate with a liquid fertilizer pump While supplying from the discharge line, the best fertilizer is supplied to the plant. The fertilizer supply device having this structure is controlled by a timer, for example, and supplies a predetermined amount of diluted fertilizer to a plant a plurality of times a day.

  It is important that the fertilizer supplied to the plant is optimally designed with an element ratio of nitrogen component, phosphate component, potassium component, calcium component, magnesium component, and the like. In order to realize this, a plurality of types of fertilizers having different element ratios are mixed and stored in the fertilizer tank. Furthermore, the fertilizer supplied to plants is optimally designed by adjusting the mixing ratio of liquid fertilizers with different element ratios stored in multiple fertilizer tanks.

  For example, Table 1 below shows fertilizers used from the 10th day to the flower bud emergence period (growth period) after planting strawberries. However, this table | surface has shown content of each component by content (g) with respect to 100g. These fertilizers are mixed and supplied to strawberries as a fertilizer that is optimally designed for nitrogen, phosphate, potassium, calcium, and magnesium components.

  If 15 kg of fertilizer (1-7) in Table 1 and 10 kg of calcium nitrate (tetrahydrate) as fertilizer (4-1) are mixed, nitrogen component, phosphate component, potassium component, calcium component, magnesium component The element ratio is 10.4: 4.8: 16.2: 9.2: 2.4.

  Moreover, fertilizer which mixes B company 5 No.1 12.5kg, B company 7 No.1 12.5kg, calcium nitrate (tetrahydrate) 7kg, and magnesium nitrate 3kg is a nitrogen component, a phosphoric acid component, a potassium component, a calcium component. The ratio of the magnesium component is 13.1: 8.6: 18.2: 4.6: 2.7.

  As described above, the fertilizer is optimally designed for the plant and given to the plant, but it is difficult to always supply the plant with the optimal fertilizer component balance. In particular, balance is important for the element ratio, and even if one of calcium and magnesium is supplied, it cannot be absorbed efficiently by the plant. For this reason, if a plant cannot absorb fertilizer efficiently, it will be necessary to supply a large amount of fertilizer, and it will become very uneconomical. In addition, fertilizers that are not absorbed by the plant may be discarded and adversely affect the outside.

  An important object of the present invention is to display the fertilizer balance contained in the liquid fertilizer supplied to the plant in an extremely easy-to-understand manner, to optimally design the fertilizer supplied to the plant, and to supply the fertilizer that can efficiently grow the plant in a favorable environment Is to provide.

The fertilizer supply device of the present invention has the following configuration in order to achieve the above-described object. The fertilizer supply device includes a plurality of fertilizer tanks 4 that store liquid fertilizer of a predetermined concentration, a liquid fertilizer pump 2 that supplies liquid fertilizer stored in each fertilizer tank 4 to the discharge line 1, and a liquid fertilizer pump 2 that controls liquid fertilizer supply. A control circuit 5 for controlling the amount and a water replenishing unit 6 for supplying water to the discharge line 1 are provided. Further, the liquid fertilizer pump 2 is an electromagnetic metering pump comprising a diaphragm pump, and a check valve is connected to the discharge side of each liquid fertilizer pump 2, and the discharge side of each liquid manure pump 2 is connected to the discharge line via the check valve. 1 is connected. Further, a check valve is connected to the output side of the water supply unit 6, and the discharge side of the water supply unit 6 is also connected to the discharge line 1 through the check valve. The liquid fertilizer pump 2 supplies a predetermined amount of liquid fertilizer to the water in the discharge line 1 supplied from the water replenishment unit 6 to form diluted liquid fertilizer, and this diluted liquid fertilizer is supplied from the discharge line 1 to the plant. Further, the liquid fertilizer supply device includes elements included in the diluted liquid manure discharged from the discharge line 1 from the amount of liquid fertilizer stored in the fertilizer tank 4 and the amount of liquid fertilizer supplied from the fertilizer tank 4 to the discharge line 1 by the liquid fertilizer pump 2. A component display monitor 7 for calculating the ratio and illustrating the calculated element ratio is provided.

  The apparatus for supplying liquid fertilizer according to claim 2 of the present invention is shown by the component display monitor 7 as a graph with the ratio of nitrogen component, phosphoric acid component and potassium component as element ratios. 7, a nitrogen component, a phosphoric acid component, a potassium component, a calcium component, and a magnesium component are displayed in a graph as element ratios.

  Furthermore, in the fertilizer supply device according to claim 4 of the present invention, the component display monitor 7 is provided with a storage unit for storing the element amount of the fertilizer with respect to the fertilizer name and an input device 8 for inputting the fertilizer name. When the fertilizer name is input from the input device 8, the component display monitor 7 calculates and displays the element ratio based on the element amount stored in the storage unit.

  The fertilizer supply device of the present invention includes an input device 8 for inputting the component amount of liquid fertilizer stored in the fertilizer tank 4 and an input device 8 for inputting the supply amount by which the liquid fertilizer pump 2 transfers liquid fertilizer to the component illustration monitor 7. Provided. The component display monitor 7 calculates the element ratio of the liquid fertilizer input from the input device 8 and the element ratio of the diluted liquid fertilizer discharged from the discharge line 1 from the supply amount of the liquid fertilizer pump 2 and displays it as a graph.

  The fertilizer supply device according to claim 5 of the present invention includes a storage unit for supplying a specific amount of specific fertilizer to each fertilizer tank 4 and storing an element ratio in a state where the supply amount of the liquid fertilizer pump 2 is a specific amount. The monitor 7 is provided. This supply device can be conveniently used in specific usage conditions.

  Furthermore, the fertilizer supply device according to claim 6 of the present invention is provided with a flow rate sensor 10 for detecting the flow rate of the liquid fertilizer pump 2 in the component display monitor 7. The flow rate sensor 10 detects the flow rate of the liquid manure supplied to the discharge line 1 by the liquid manure pump 2. The component display monitor 7 calculates the element ratio of the diluted liquid fertilizer from the liquid fertilizer flow rate detected by the flow sensor 10 and illustrates the result.

  In the fertilizer supply device according to the seventh aspect of the present invention, the water supply sensor 6 is provided in the water supply unit 6. A signal from the water amount sensor 11 is input to the control circuit 5. The control circuit 5 detects the flow rate of water with the water amount sensor 11 and controls the flow rate of the liquid fertilizer pump 2 with a flow rate corresponding to the flow rate of water.

  The fertilizer supply device of the present invention is shown on a component display monitor for easy understanding of the fertilizer balance of nitrogen component, phosphate component, potassium component, calcium component, magnesium component, etc. contained in the diluted liquid fertilizer supplied to the plant from the discharge line. . The user can confirm the fertilizer balance with this component illustration monitor, and can definitely optimally design the fertilizer balance of the diluted liquid fertilizer supplied to the plant. For this reason, there exists the feature which can grow a plant efficiently in a very favorable environment. In particular, the fertilizer supply device of the present invention can confirm the component of the diluted liquid fertilizer supplied to the plant from the discharge line by looking at the component ratio shown in the component display monitor. For this reason, the diluted liquid fertilizer can be supplied to the plant at an always optimally designed element ratio without mistakenly supplying the diluted liquid fertilizer to the plant.

  The fertilizer supply device according to claim 2 displays the element ratio, that is, the balance of the nitrogen component, the phosphate component, and the potassium component, which are the three elements of the fertilizer, on the component diagram monitor in a graph. With this device, the user can check the fertilizer balance on the graph of the component diagram monitor, and supply the diluted liquid fertilizer optimally designed for the plant.

  Furthermore, the fertilizer supply device according to claim 3 displays the ratio of nitrogen component, phosphate component, potassium component, calcium component, magnesium component, and five large fertilizer balances in an easy-to-understand manner on the component diagram monitor. You can check the fertilizer balance on the monitor graph and supply the dilute fertilizer optimized for plants.

  The fertilizer supply device according to claim 4 can input the fertilizer name of the fertilizer to be put in the fertilizer tank and display the element ratio of the liquid fertilizer feeder discharged from the discharge line on the component diagram monitor. For this reason, this device can display the element ratio by inputting only the fertilizer name without inputting the fertilizer component of the fertilizer to be put in the fertilizer tank. For this reason, the fertilizer name can be changed to various conditions, and the optimum fertilizer can be easily obtained.

  Since the fertilizer supply device of the present invention inputs the amount of the fertilizer component to be put in the fertilizer tank, it is possible to supply the plant with the dilute liquid fertilizer with the optimally designed fertilizer balance using various fertilizers.

  Further, the supply device according to claim 5 supplies a specific determined fertilizer to each fertilizer tank in a predetermined amount that is specified in advance, and further an element in a state in which the supply amount of the liquid fertilizer pump is a specific amount. Since the ratio is stored in the storage unit of the component diagram monitor, it can be conveniently used in a specific predetermined state. Even in this state, since the element ratio is displayed on the component diagram monitor, the element ratio of the diluted liquid fertilizer supplied to the plant can be confirmed, and the optimum fertilizer can be supplied without fail.

  In addition, since the supply device of claim 6 detects the flow rate of liquid fertilizer with a flow sensor, the supply ratio of liquid fertilizer can be actually confirmed, and the element ratio can be displayed on the component illustration monitor without inputting the flow rate of liquid fertilizer There is.

  Furthermore, since the supply device of claim 7 is provided with a flow rate sensor in the water replenishment section, the signal of this flow rate sensor is input to the control circuit, the control circuit detects the flow rate of water with the flow rate sensor, and the flow rate of water By controlling the flow rate of the liquid fertilizer pump at a flow rate corresponding to, the liquid fertilizer can be supplied to the plant while automatically adjusting the concentration of the liquid fertilizer.

  Embodiments of the present invention will be described below with reference to the drawings. However, the example shown below illustrates the fertilizer supply device for embodying the technical idea of the present invention, and the present invention does not specify the supply device as follows.

  Further, in this specification, for easy understanding of the scope of claims, numbers corresponding to the members shown in the embodiments are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

The fertilizer supply device shown in FIG. 2 includes a plurality of fertilizer tanks 4 that store liquid fertilizer of a predetermined concentration, a liquid fertilizer pump 2 that supplies liquid fertilizer stored in each fertilizer tank 4 to the discharge line 1, and each liquid fertilizer pump 2. A check valve connected between the discharge side and the discharge line 1, a control circuit 5 for controlling the liquid fertilizer pump 2 to control the amount of liquid fertilizer supplied, and water supply for supplying water to the discharge line 1 And a component display monitor 7 for displaying an element ratio of the diluted liquid fertilizer discharged from the discharge line 1 and supplied to the plant.

  The fertilizer supply apparatus in the figure includes three sets of fertilizer tanks 4A, 4B, and 4C. However, the fertilizer supply device may be provided with two or four or more fertilizer tanks. The fertilizer tank stores liquid fertilizer diluted to a predetermined magnification in water, or dissolves and stores powder or solid fertilizer in water. One or more fertilizers can be diluted in water and stored in the fertilizer tank. The fertilizer tank 4 shown in the figure is connected to the liquid fertilizer pump 2 via a foot valve 13 with a strainer so that the liquid fertilizer in the tank can be stably supplied.

The liquid fertilizer pump 2 is controlled by the control circuit 5 to supply the fertilizer stored in the fertilizer tanks 4A, 4B, and 4C to the discharge line 1 with a predetermined supply amount. The liquid fertilizer pump 2, using the electricity磁定amount pump. A diaphragm pump is used as an electromagnetic metering pump . Liquid fertilizer pump 2 is an electromagnetic metering pump controls the control circuit 5 Death stroke count, the supply amount of the liquid manure to be supplied to the discharge line 1 from the fertilizer tank, i.e. that will control the flow rate. Liquid manure pump 2 is controlled by the control circuit 5 is adjusted to the amount set the supply quantity of liquid manure. The fertilizer supply apparatus shown in the figure is configured by separately connecting three liquid fertilizer pumps 2A, 2B, and 2C to three sets of fertilizer tanks 4A, 4B, and 4C. However, although not shown in the drawings, the supply device of the present invention can be connected to a plurality of fertilizer tanks via a switching valve so that the number of liquid fertilizer pumps is less than the number of fertilizer tanks. This liquid fertilizer pump can switch the fertilizer tank connected with a switching valve, and can supply the liquid fertilizer of each fertilizer tank to a discharge line.

  The control circuit 5 controls the operation of the liquid manure pump 2 with a control signal input from the component diagram monitor 7. For example, when the liquid fertilizer A in the fertilizer tanks 4A, 4B, and 4C is diluted 100 times and supplied to the discharge line 1, the control circuit 5 supplies the flow rate of the liquid fertilizer pump 2A from the water supply unit 6 to the discharge line 1. The operation of the liquid fertilizer pump 2A is controlled so as to be 1/100 of the flow rate of water.

  The water supply unit 6 supplies water to the discharge line 1 at a predetermined flow rate. The water supply unit 6 is a water pump that supplies water to the discharge line 1 at a predetermined flow rate. However, the water replenishment part does not necessarily need to be a water pump. For example, a water tank arranged at a higher position than the discharge line, or a water supply can be used as the water supply unit. Although not shown in the drawing, the supply device having the water supply as a water replenishment unit connects the water supply line to the discharge line via a pressure regulating valve. The water supply unit 6 in the figure includes a water amount sensor 11 that detects the flow rate of water supplied to the discharge line 1. This supply device inputs the signal of the water amount sensor 11 to the control circuit 5, the control circuit 5 detects the flow rate of water by the signal of the water amount sensor 11, and the supply amount of liquid fertilizer becomes an amount corresponding to the flow rate of water. Thus, the operation of the liquid fertilizer pump 2 is controlled. For example, when the liquid flow rate is 100 liters / minute and liquid fertilizer is supplied at a concentration of 1/100 of the water in the discharge line 1, the control circuit 5 sets the liquid fertilizer so that the flow rate of the liquid fertilizer pump 2 is 1 liter / minute. The operation of the pump 2 is controlled. The supply device shown in the figure has a flow rate sensor 10 connected in series with the liquid manure pump 2, so that the control circuit 5 detects the flow rate of the liquid manure with this flow rate sensor 10 and the detected flow rate becomes the set flow rate. The operation of the pump 2 is controlled.

  The discharge line 1 is connected to a drip tube, a watering hose, or a watering machine disposed in the field, or is connected to a cultivation container for high cultivation or a cultivation container for hydroponics to supply diluted liquid fertilizer. Further, the supply device can connect the discharge line to the tank, temporarily store the supplied diluted liquid fertilizer in the tank, and then supply the diluted liquid fertilizer from the tank via a sprinkler or the like.

  The component display monitor 7 is discharged from the discharge line 1 from the amount of liquid fertilizer elements stored in the fertilizer tanks 4A, 4B, and 4C and the liquid fertilizer amount that the liquid fertilizer pump 2 supplies to the discharge line 1 from the fertilizer tanks 4A, 4B, and 4C. The element ratio contained in the diluted liquid fertilizer is calculated, and the calculated element ratio is illustrated. The component display monitor 7 shown in the figure includes a monitor main body 7 </ b> A and an input device 8.

  The monitor main body 7A in FIG. 2 displays a nitrogen component, a phosphoric acid component, a potassium component, a calcium component, and a magnesium component as element ratios in a graph. As shown in this figure, the component display monitor 7 shown by arranging the element ratios side by side in a bar graph can accurately compare each fertilizer element. However, the component display monitor does not necessarily have to display the fertilizer element ratio as a bar graph, for example, a pie graph, a line graph, a band graph, a picture graph (isotype, etc.), a pie graph (fan graph), etc. it can.

  The monitor main body 7A in the figure shows, in order from the right, a ratio of five elements of a fertilizer composed of a nitrogen component, a phosphoric acid component, a potassium component, a calcium component, and a magnesium component as a bar graph. In the apparatus of the present invention, it is not always necessary to show the above element ratios on the component display monitor 7, and the ratio of the three elements of fertilizer composed of a nitrogen component, a phosphoric acid component, and a potassium component can be illustrated most simply. Furthermore, it can also be illustrated in more detail as an element ratio including any of an iron component, a manganese component, a copper component, a boron component, and the like.

  The component display monitor 7 is an element of diluted liquid manure discharged by the discharge line 1 from the amount of liquid fertilizer elements stored in the fertilizer tanks 4A, 4B, 4C and the amount of liquid fertilizer supplied from the fertilizer tanks 4A, 4B, 4C to the discharge line 1. The ratio is calculated and illustrated. The element amount of liquid fertilizer stored in the fertilizer tanks 4A, 4B, 4C is input from the input device 8. The component display monitor 7 of FIG. 2 includes a storage unit (not shown) that stores the amount of elements included in the fertilizer having the fertilizer name input from the input device 8. The memory | storage part has memorize | stored the element amount of the fertilizer of a some fertilizer name. For example, the element quantity contained in the fertilizer of the fertilizer name (1-1 to 5-2) shown in Table 1 is memorized. The component display monitor 7 for storing the element amounts of a plurality of fertilizers in the storage unit inputs the fertilizer name and the weight of the fertilizer from the input device 8 and inputs the element amounts included in the liquid fertilizer of the fertilizer tanks 4A, 4B, 4C. it can. Further, from the input device 8, the amount of liquid fertilizer for supplying the liquid fertilizer in the fertilizer tanks 4 </ b> A, 4 </ b> B, 4 </ b> C to the discharge line 1 is also input.

  For example, 15 kg of fertilizer (1-7) is supplied to the fertilizer tank 4A and diluted with water, and 10 kg of fertilizer (4-1) is supplied to the fertilizer tank 4B so that the fertilizer tank 4A has the same amount of water as the fertilizer tank 4A. In a state in which the liquid fertilizer pump 2 is input from the input device 8 so that the liquid fertilizer pump 2 supplies the liquid fertilizer in the fertilizer tank 4A and the liquid fertilizer in the fertilizer tank 4B to the equal discharge line 1, the component display monitor 7 calculates as follows. The element ratio is illustrated.

In the fertilizer (1-7) shown in Table 1, the contents of the nitrogen component, the phosphoric acid component, the potassium component, and the magnesium component are set to 10 g, 8 g, 27 g, and 4 g in order with respect to 100 g of the fertilizer. Therefore, when 15 kg of this fertilizer is put into the fertilizer tank 4A, the amount of each element of the fertilizer put into the fertilizer tank 4A is as follows.
Nitrogen component ………… 1.5kg (10 × 15000/100)
Phosphoric acid component ………… 1.2kg (8 × 15000/100)
Potassium component …… 4.1kg (27 × 15000/100)
Magnesium component: 0.6 kg (4 x 15000/100)

Further, when 10 kg of the fertilizer (4-1) shown in Table 1 is put in the fertilizer tank 4B, the amount of the fertilizer in the fertilizer tank 4B is as follows. The fertilizer of (4-1) is 11g and 23g in order with respect to 100g of fertilizer, content of a nitrogen component and a calcium component. Therefore, the element amount of the fertilizer contained in 10 kg of the fertilizer is as follows.
Nitrogen component ............ 1.1 kg (11 × 10000/100)
Calcium component: 2.3kg (23 x 10000/100)

When, for example, an equal amount of liquid fertilizer is supplied to the discharge line 1 from the fertilizer tanks 4A and 4B to the discharge line 1, the nitrogen component, phosphate component, potassium component, calcium component, magnesium contained in the diluted liquid fertilizer supplied to the discharge line 1 The component ratio of the components is as follows. That is, for 15 kg of fertilizer supplied to the discharge line 1 from the fertilizer tank 4A and 10 kg of fertilizer supplied to the discharge line 1 from the fertilizer tank 4B, that is, for a total of 25 kg of fertilizer supplied from the fertilizer tanks 4A and 4B. Thus, the nitrogen component, phosphoric acid component, potassium component, calcium component, and magnesium component have the following element ratios.
Nitrogen component: 2.6 / 25
Phosphoric acid component ………… 1.2 / 25
Potassium component ... 4.1 / 25
Calcium component 2.3 / 25
Magnesium component ... 0.6 / 25
This element ratio is shown as a bar graph on the component display monitor 7.

  As described above, the device for storing the element amounts of the plurality of fertilizer names in the storage unit of the component display monitor 7 inputs the fertilizer name and the weight of the fertilizer, and calculates the element amounts of the fertilizer supplied to the fertilizer tank. Can be identified. However, the fertilizer supply device of the present invention can also directly input the amount of fertilizer supplied to the fertilizer tank from the input device.

  The component illustration monitor 7 calculates element ratios of the nitrogen component, the phosphoric acid component, the potassium component, the calcium component, and the magnesium component based on the following equations. The amounts of the nitrogen component, phosphoric acid component, potassium component, calcium component, and magnesium component supplied to the discharge line 1 from the fertilizer tanks 4A and 4B are as follows. However, it is assumed that liquid fertilizer is supplied to the discharge line 1 from the two fertilizer tanks 4A and 4B.

Nitrogen component (N) = Na · AL / NA + Nb · BL / NB
In this formula, Na is the amount of nitrogen component supplied to the fertilizer tank 4A.
AL is the flow rate of liquid fertilizer supplied to the discharge line 1 from the fertilizer tank 4A.
NA is the dilution factor of the nitrogen component diluted in the fertilizer tank 4A
Nb is the amount of nitrogen component supplied to the fertilizer tank 4B
BL is the flow rate of liquid fertilizer supplied to the discharge line 1 from the fertilizer tank 4B.
NB is the dilution factor of the nitrogen component diluted in the fertilizer tank 4B. Phosphoric acid component (P) = Pa · AL / PA + Pb · BL / PB
In this equation, Pa is the amount of phosphoric acid component supplied to the fertilizer tank 4A.
PA is the dilution factor of the phosphoric acid component diluted in the fertilizer tank 4A
Pb is the amount of phosphoric acid component supplied to the fertilizer tank 4B
PB is the dilution factor of the phosphoric acid component diluted in the fertilizer tank 4B. Potassium component (K) = Ka · AL / KA + Kb · BL / KB
In this equation, Ka is the amount of potassium component supplied to the fertilizer tank 4A.
KA is the dilution factor of potassium component diluted in the fertilizer tank 4A
Kb is the amount of potassium component supplied to the fertilizer tank 4B
KB is the dilution factor of the potassium component diluted in the fertilizer tank 4B. Calcium component (Ca) = Ca · AL / CA + Cb · BL / C
In this formula, Ca is the amount of calcium component supplied to the fertilizer tank 4A.
CA is the dilution factor of the calcium component diluted in the fertilizer tank 4A
Cb is the amount of calcium component supplied to the fertilizer tank 4B
CB is the dilution factor of the calcium component diluted in the fertilizer tank 4B. Magnesium component (Mg) = Ma · AL / MA + Mb · BL / MB
In this formula, Ma is the amount of magnesium component supplied to the fertilizer tank 4A.
MA is the dilution factor of the magnesium component diluted in the fertilizer tank 4A
Mb is the amount of magnesium component supplied to the fertilizer tank 4B
MB is the dilution factor of the magnesium component diluted in the fertilizer tank 4B

  The element amounts of the nitrogen component, phosphoric acid component, potassium component, calcium component, and magnesium component supplied to the discharge line 1 from the fertilizer tanks 4A and 4B are calculated by the above formula. The component display monitor 7 calculates and shows the element ratio from the calculated element amount.

  Further, the fertilizer supply device stores element ratios in a specific use state. For example, 15 kg of fertilizer (1-7) is added to the fertilizer tank 4A and diluted 10 times with water, and further 10 kg of fertilizer (4-1) is added to the fertilizer tank 4B and diluted 10 times with water. Furthermore, the element ratio of the state in which the liquid fertilizer supplied from the fertilizer tank 4A to the discharge line 1 is 1 liter / minute and the liquid fertilizer supplied from the fertilizer tank 4B to the discharge line 1 is stored as 1 liter / minute is stored as a specific pattern. is doing. When it is input from the input device 8 that it is used in this use state, the stored element ratio is shown in the monitor body 7A. When used in this state, the user supplies a specified amount of fertilizer to the determined fertilizer tanks 4A and 4B, and sets the flow rate of the liquid fertilizer pump 2 to the determined flow rate. The fertilizer supply device that can be used in this state supplies a specific amount of specific fertilizer to each of the fertilizer tanks 4A, 4B, and a storage unit that stores an element ratio in a state where the supply amount of the liquid fertilizer pump 2 is a specific amount. The illustrated monitor 7 is provided.

  Further, the storage unit can store a plurality of specific patterns. This storage unit stores a plurality of element ratios as a specific pattern, and illustrates the element ratio for the specific pattern selected by the input device 8 on the monitor body 7A. Further, a specific amount of the determined fertilizer is supplied to the determined fertilizer tank so that the element ratio shown in the monitor main body 7A is obtained, and the flow rate of the liquid fertilizer pump 2 is also set to the determined flow rate.

  The supply device shown in FIG. 2 includes a flow sensor 10 that detects the flow rate of the liquid fertilizer pump 2. This apparatus can detect the flow rate of the liquid fertilizer supplied to the discharge line 1 by the liquid fertilizer pump 2 with the flow rate sensor 10 and calculate the element ratio of the diluted liquid fertilizer from the detected flow rate of the liquid fertilizer. This device can be illustrated by checking the flow rate of liquid fertilizer supplied to the discharge line 1 with the flow rate sensor 10 and calculating the element ratio with the actual flow rate.

  Further, the supply device of FIG. 2 is equipped with a water amount sensor 11 in the water supply unit 6. A signal from the water amount sensor 11 is input to the control circuit 5. The control circuit 5 detects the flow rate of water with a signal input from the water amount sensor 11, controls the flow rate of the liquid fertilizer pump 2 with a flow rate corresponding to the flow rate of water, dilutes the liquid fertilizer with a predetermined concentration, and plants To supply.

  The concentration of the diluted liquid fertilizer supplied to the plant from the discharge line 1, that is, how many times the fertilizer supplied to the fertilizer tanks 4A, 4B, and 4C is diluted and supplied to the plant depends on the fertilizer tanks 4A, 4B, and 4C. And the ratio of the water flow rate of the water supply unit 6 to the flow rate of the liquid fertilizer pump 2. Therefore, the apparatus of FIG. 2 can adjust the density | concentration of dilution liquid manure with the flow volume which the liquid manure pump 2 supplies liquid manure to the discharge line 1 from the fertilizer tank 4A, 4B, 4C. When the liquid fertilizer pump 2 supplies a large amount of liquid fertilizer to the discharge line 1, the concentration of fertilizer contained in the diluted liquid fertilizer discharged from the discharge line 1 increases, and conversely the flow rate at which the liquid fertilizer pump 2 supplies the liquid fertilizer to the discharge line 1 If it reduces, the density | concentration of the fertilizer contained in the dilution liquid manure discharged | emitted from the discharge line 1 will become low. The control circuit 5 detects the flow rate of the water with the water amount sensor 11 of the water replenishment unit 6, supplies liquid fertilizer from the fertilizer tanks 4A, 4B, and 4C to the discharge line 1 at a flow rate set for the flow rate of water, The concentration of the fertilizer in the diluted liquid fertilizer is set as the set value. The flow rate for the water of the liquid fertilizer pump 2 is input from the input device 8 so that the fertilizer concentration of the diluted liquid fertilizer becomes a set value.

  The fertilizer supply device discharges a certain amount of dilute fertilizer from the discharge line 1 and supplies it to the plant several times a day. The apparatus shown in the figure includes a timer 12 so that the diluted liquid fertilizer is discharged at a predetermined time. The timer 12 is a 24-hour timer and stores the time during which the diluted liquid fertilizer is discharged from the discharge line 1 and supplied to the plant. When the time stored in the timer 12 is reached, the control circuit 5 drives the water supply unit 6 and the liquid manure pump 2 to discharge the diluted liquid manure from the discharge line 1. When a predetermined amount of diluted fertilizer is discharged, the control circuit 5 stops the operation of the water supply unit 6 and the liquid fertilizer pump 2 and stops the discharge of the diluted liquid fertilizer. The control circuit 5 stops the operation by the timer 12 or stops the operation by a signal from the water flow sensor of the water supply unit 6. The device that stops the operation with the timer 12 stores the operation time in the timer 12. The device that stops the operation with the water flow sensor detects that the water flow sensor has passed the set flow of water, and in other words stops the operation when the flow rate of the water discharged from the discharge line 1 reaches the set value.

  Furthermore, although the fertilizer supply device is not shown in the drawing, it is possible to connect a moisture sensor or a solar radiation amount sensor to the control circuit and adjust the amount of liquid fertilizer supplied to the plant based on these detected values. The moisture sensor can detect, for example, the moisture content of the medium in which the plant is grown. The control circuit supplies liquid fertilizer when the amount of water detected by the moisture sensor is lower than the set amount of water, and stops or restricts the supply of liquid fertilizer when the detected amount of water is higher than the set amount be able to. The solar radiation amount sensor detects the amount of solar radiation that is the amount of sunlight irradiated to the plant. The control circuit increases the amount of liquid fertilizer supplied to the plant when the amount of solar radiation detected by the solar radiation amount sensor increases, or shortens the supply interval, and reduces the amount of liquid fertilizer supplied when the amount of solar radiation decreases. Or, adjust the supply amount of liquid fertilizer by increasing the supply interval.

  The time when the fertilizer supply device is operated, the time when it is stopped, or the amount of water discharged at one time is input from the input device 8.

It is a block diagram of the conventional fertilizer supply apparatus. The block diagram of the fertilizer supply apparatus concerning the Example of this invention.

Explanation of symbols

1 ... discharge line 2 ... liquid fertilizer pump 2A ... liquid fertilizer pump
2B ... Liquid fertilizer pump
2C ... Liquid fertilizer pump 4 ... Fertilizer tank 4A ... Fertilizer tank
4B ... Fertilizer tank
4C ... Fertilizer tank 5 ... Control circuit 6 ... Water replenishment section 7 ... Component display monitor 7A ... Monitor body 8 ... Input device 10 ... Flow rate sensor 11 ... Water quantity sensor 12 ... Timer 13 ... Foot valve with strainer 20 ... Pump 21 ... Discharge Line 22 ... Liquid fertilizer pump 23 ... Control device 24 ... Fertilizer tank

Claims (7)

A plurality of fertilizer tanks (4) that store liquid fertilizer of a predetermined concentration, a liquid fertilizer pump (2) that supplies liquid fertilizer stored in each fertilizer tank (4) to the discharge line (1), and a liquid fertilizer pump (2) are controlled. A control circuit (5) for controlling the supply amount of liquid fertilizer and a water replenishment section (6) for supplying water to the discharge line (1),
The liquid fertilizer pump (2) supplies a predetermined amount of liquid fertilizer to the water in the discharge line (1) supplied from the water replenishment section (6) to form diluted liquid fertilizer, and this diluted liquid fertilizer is supplied to the plant from the discharge line (1). In the liquid fertilizer supply device,
The liquid fertilizer pump (2) is an electromagnetic metering pump comprising a diaphragm pump, and a check valve is connected to the discharge side of each of the liquid fertilizer pumps (2) to check the discharge side of each of the liquid fertilizer pumps (2). It is connected to the discharge line (1) via a valve, and a check valve is also connected to the output side of the water replenishment section (6), and the discharge side of the water supply section (6) is also connected to the check valve. Connected to the discharge line (1) via
Included in the diluted liquid manure discharged from the discharge line (1) from the amount of liquid manure stored in the fertilizer tank (4) and the amount of liquid fertilizer supplied by the liquid fertilizer pump (2) from the fertilizer tank (4) to the discharge line (1) The component display monitor (7) that calculates the calculated element ratio and the component display monitor (7) further inputs an element amount of liquid fertilizer stored in the fertilizer tank (4) (8) and an input device (8) for inputting a supply amount for the liquid fertilizer pump (2) to transfer the liquid fertilizer, and an element amount of the liquid fertilizer input from the input device (8) and the supply of the liquid fertilizer pump (2) From the amount, the element ratio of diluted liquid fertilizer discharged from the discharge line (1) is calculated and illustrated as a graph,
Furthermore, the input device (8) stores the element ratio in a specific use state as a specific pattern and stores a plurality of specific patterns, and the use state of the specific pattern is input from the input device (8). A liquid fertilizer supply apparatus, wherein the stored element ratio is illustrated in the monitor body (7A).   The fertilizer supply device according to claim 1, wherein the component display monitor (7) graphically illustrates the ratio of nitrogen component, phosphoric acid component and potassium component as an element ratio.   The fertilizer supply device according to claim 1, wherein the component display monitor (7) displays the nitrogen component, the phosphoric acid component, the potassium component, the calcium component, and the magnesium component as element ratios in a graph.   The component display monitor (7) includes a storage unit for storing the amount of the fertilizer element for the fertilizer name, and an input device (8) for inputting the fertilizer name, and the fertilizer name is input from the input device (8). The fertilizer supply device according to claim 1, wherein an element ratio is calculated and displayed based on an element amount stored in the storage unit.   Each component fertilizer tank (4) is provided with a specific amount of specific fertilizer and a storage unit is provided in the component illustration monitor (7) for storing an element ratio in a state where the supply amount of the liquid fertilizer pump (2) is a specific amount. The fertilizer supply device according to claim 1.   The component display monitor (7) has a flow sensor (10) for detecting the flow rate of the liquid manure pump (2), and the flow rate of the liquid manure supplied by the liquid manure pump (2) to the discharge line (1) with the flow sensor (10). The fertilizer supply device according to claim 1, wherein an element ratio of the diluted liquid fertilizer is calculated from the detected flow rate of the liquid fertilizer and illustrated.   The water replenishment section (6) has a water volume sensor (11), and the signal from the water volume sensor (11) is input to the control circuit (5), and the control circuit (5) The fertilizer supply device according to claim 1, wherein the flow rate of the liquid fertilizer pump (2) is controlled by a flow rate corresponding to the flow rate of water.

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