CN107027404A - A kind of culture apparatus accurately controlled for root system of plant temperature - Google Patents

A kind of culture apparatus accurately controlled for root system of plant temperature Download PDF

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Publication number
CN107027404A
CN107027404A CN201611084369.0A CN201611084369A CN107027404A CN 107027404 A CN107027404 A CN 107027404A CN 201611084369 A CN201611084369 A CN 201611084369A CN 107027404 A CN107027404 A CN 107027404A
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China
Prior art keywords
temperature
plant
root system
root
liquid pool
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CN201611084369.0A
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Inventor
李邵
齐飞
丁小明
田婧
张跃峰
鲁少尉
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Chinese Academy of Agricultural Engineering CAAE
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Chinese Academy of Agricultural Engineering CAAE
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Priority to CN201611084369.0A priority Critical patent/CN107027404A/en
Publication of CN107027404A publication Critical patent/CN107027404A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/007Metering or regulating systems
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Soil Sciences (AREA)
  • Hydroponics (AREA)

Abstract

The present invention provides a kind of culture apparatus accurately controlled for root system of plant temperature, and it includes:Cultivation bed for cultivated plant, for storing nutrient solution and the nutrition liquid pool of lower water temperature can be carried out, a water pump built in nutrition liquid pool, water pump is connected by a feed pipe with described cultivation bed, and is provided with a liquid back pipe in cultivation trench bottom, and liquid back pipe is connected with nutrition liquid pool.The temperature of nutrient solution in cultivation bed is fed by regulation, to change Root temperature, so as to provide a kind of culture apparatus for accurately controlling root system of plant temperature and the method for accurate control root system of plant temperature, to solve not carrying out root system of plant accurately in existing cultivation, uniformly temperature control and fertigation cause the defect of root system of plant temperature fluctuation.

Description

A kind of culture apparatus accurately controlled for root system of plant temperature
Technical field
The present invention relates to cultivation technique without soil field, accurately controlled for root system of plant temperature more particularly, to one kind Culture apparatus and accurate control root system of plant temperature method.
Background technology
Hydroponic culture (hydroponicculture) can be described as soilless culture or Liquid cultivation again, using appropriate Facility and medium, by the nutrient solution and air supply needed for plant in its root, thus without using the Cultivation method of soil. The transition of modern age environment acutely, in the past on solar term and the correlation experience of meteorology, can not be effectively adapted to the weather of today, Agricultural thus be greatly affected.Explosive population growth, and soil had using effect phase/time limit, to maintain to supply plant growth in soil Nutrient, it is necessary to lain fallow or crop rotation, but this military order can all face the situation of food shortage all over the world.Therefore, temperature is utilized Room cultivated plant has been increasingly becoming the key project of modern agriculture.Side in greenhouse also favorably with the original soil in ground to cultivate Formula, can save the expense of facility.However, because the nutrient of soil is difficult control, therefore tended to use nothing in general greenhouse Soil need to be relied on, the hydroponic culture method of the moisture and nutrient solution needed for it then by manually allocating.
Found in hydroponic culture research process, absorption and plant of the root system of plant temperature to root system of plant moisture, nutrient Thing production has significant association, and rational Root temperature can not only promote plant growth, improve the yield of plant, and in the winter In season plant production, the heating cost of plant production can be significantly reduced.
There is foreign study to show, in the winter time nighttime temperature be 9 DEG C and 5 DEG C, ground temperature be cultivated tomato under conditions of 25 DEG C, can To save the energy 20% and 30% respectively, and yield will not be reduced (Vander, 2005).Because root soil is empty not with the external world Gas is directly contacted, its heat scatter and disappear approach it is longer, thermal loss is smaller, the anniversary temperature change it is smaller.Therefore, in plant culture In, the control of the control ratio air themperature of Root temperature becomes more important.
At present, the control method of plant culture Root temperature is mainly by the side of root system of plant region embedded ground hot line Formula is heated, and then by connecting temperature controller, can heat ground temperature to improve Root temperature, but this mode can not actively reduce root It is temperature, the heating uniformity is very poor, is also unfavorable for plant culture farming;The side of nutrition liquid irrigation is also heated with electrical bar in addition Formula, this mode applies more in water culture, and heating effect preferably, but is easily caused appearance on nutrient solution denaturation, electrical bar Perishable and accumulation incrustation scale.
A kind of root system temperature regulating device is provided in Chinese patent CN201010132166.0, is set using in outer case The internal box of uncovered, and interbed between internal box and outer case is provided with heat-barrier material, by interbed fill it is different every Heat and packing material control Root temperature, and using liner thermal isolation film solve internal-external temperature difference well and produce condensate and ask Topic, to ensure the heat insulation effect of heat-barrier material.Although the patent solves the problem of electrical bar easily corrodes, but its still without Method solves the technical problem of root system of plant cooling.
And once root system of plant temperature is higher, the root system of plant of high temperature causes root respiration to aggravate, and is unfavorable for plant Growth.Therefore, device a kind of simple in construction, easy to use and that root system of plant temperature can be precisely controlled is designed to plough as water The technical problem solved is badly in need of in cultivation.
The content of the invention
The present invention provides a kind of culture apparatus for accurately controlling root system of plant temperature and accurate control root system of plant temperature Method, cause plant to solve in existing cultivation that root system of plant can not be carried out accurate uniform temperature control and fertigation The defect of Root temperature fluctuation.
According to an aspect of the present invention there is provided a kind of culture apparatus accurately controlled for root system of plant temperature, it is special Levy and be, it includes:Cultivation bed for cultivated plant, for storing nutrient solution and the nutrition liquid pool of lower water temperature can be carried out, A water pump built in described nutrition liquid pool, described water pump is connected by a feed pipe with described cultivation bed, and described Cultivation trench bottom be provided with a liquid back pipe, described liquid back pipe is connected with described nutrition liquid pool.
On the basis of such scheme preferably, described nutrition liquid pool includes pond body and the cold and hot friendship being arranged in the pond body Pipeline is changed, described cold-hot exchanging tube Lu Yuyi constant temperature water chiller/heater is connected.
On the basis of such scheme preferably, provided with a temperature sense for obtaining solution temperature in described nutrition liquid pool Answer device.
On the basis of such scheme preferably, a liquid level control for being used to control nutrient solution water level is additionally provided with described cultivation bed Device processed.
On the basis of such scheme preferably, provided with a TEMP for gathering Root temperature in described cultivation bed Device.
On the basis of such scheme preferably, it also includes a controller, and described temperature inductor and temperature sensor is obtained Take temperature data, and send it to the controller, described controller by adjust the constant temperature water chiller/heater, water pump and Fluid level controller, to adjust solution temperature and water level in described cultivation bed.
On the basis of such scheme preferably, described cold-hot exchanging tube road is arranged on described pond body medial surface, and in institute The cold-hot exchanging tube road surfaces stated are provided with an antiseepage film.
On the basis of such scheme preferably, described pond body is made up of Heat Conduction Material, and described cold-hot exchanging tube road It is arranged on described pond body lateral surface.
On the basis of such scheme preferably, described nutrition liquid pool is made around by cold-hot exchanging tube road, described Cold-hot exchanging tube Lu Yuyi constant temperature water chiller/heater is connected.
On the basis of such scheme preferably, described constant temperature water chiller/heater by the cold and hot handset of more than two constant temperature it is in parallel and Into.
On the basis of such scheme preferably, fixed planting pot is provided with the cultivation bed, and the fixed planting pot is installed for fixed plant The matrix of thing root system.
Present invention also offers a kind of method of accurate control root system of plant temperature, it is characterised in that:It includes following step Suddenly,
A1. the temperature of nutrient solution is to target temperature in the Root temperature according to needed for target cultivated plant, regulation nutrition liquid pool Degree, obtains the nutrient solution of certain temperature;
A2. the nutrient input of acquisition is delivered in cultivation bed, to change target cultivated plant Root temperature in cultivation bed.
On the basis of such scheme preferably, when the Root temperature for needing target cultivated plant is less than room temperature, nutrition is adjusted The temperature of nutrient solution can significantly save Root temperature and reach to the 3-5 degree for being less than Root temperature needed for target cultivated plant in liquid pool To the desired value time.
On the basis of such scheme preferably, when the Root temperature for needing target cultivated plant is higher than room temperature, nutrition is adjusted The temperature of nutrient solution can significantly save Root temperature and reach to the 3-5 degree for being higher than Root temperature needed for target cultivated plant in liquid pool To the desired value time.
The application proposes a kind of culture apparatus accurately controlled for root system of plant temperature, will can carry out the battalion of temperature adjustment Nutrient solution pond is connected with the cultivation bed for cultivated plant, changes the nutrient solution in nutrition liquid pool using the mode of heating or cooling Temperature, then, nutrient solution is imported in cultivation bed, directly contacted with root system of plant using nutrient solution, to reach regulation plant roots It is the purpose of temperature, to provide a kind of method of quick change Root temperature.
A kind of culture apparatus accurately controlled for root system of plant temperature of the present invention, its simple in construction, manufacturing cost is low Honest and clean, arrangement is convenient and control is accurate, facilitates plant culture and management.With conventionally employed embedded ground hot line and torch mode of heating phase Compare, because nutrient solution directly contacts progress heat exchange with root system, heat exchange coefficient is done, and therefore, plant can be greatly lowered Air adds the energy consumption of cooling in thing production, while in turn ensure that the uniform of plant nutrient is supplied with stable.And the present invention is using close The planting environment of enclosed, it is to avoid soil-borne disease insect pest influence occurred frequently in soil root heating, Root temperature and nutrient solution be dense Spend controllability strong, production operation is convenient, is conducive to plant to carry production production energy-saving, has a extensive future.
Brief description of the drawings
Fig. 1 is used for the structural representation for the culture apparatus that root system of plant temperature is accurately controlled for a kind of of the present invention;
Fig. 2 is the structural representation of the first embodiment of the cultivation bed of the present invention;
Fig. 3 is the structural representation of second of embodiment of cultivation bed of the present invention
Fig. 4 fixes the structural representation of net for the root system of the present invention;
Fig. 5 is used for another structural representation for the culture apparatus that root system of plant temperature is accurately controlled for a kind of of the present invention Figure;
Fig. 6 is the experimental group of the present invention and the tomato yield contrast schematic diagram of control group;;
The distribution schematic diagram of matrix and solution temperature when Fig. 7 is winter stubble tomato fine day of the invention;
The distribution schematic diagram of matrix and solution temperature when Fig. 8 is winter stubble tomato fine day of the invention;
The distribution schematic diagram of matrix and solution temperature when Fig. 9 heats tomato fine day for the winter stubble of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Embodiment one
Refer to shown in Fig. 1, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, it includes planting Groove 10 and nutrition liquid pool 20 are trained, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrient solution.
The nutrition liquid pool 20 of the present invention can carry out lower water temperature, to change the solution temperature in nutrition liquid pool 20, and One water pump 21 is set in nutrition liquid pool 20, and the output end of water pump 21 is connected by a feed pipe 22 with cultivation bed 10, is cultivation bed 10 provide nutrient solution needed for plant.And a liquid back pipe 23 for being used to reclaim nutrient solution, liquid back pipe 23 are installed in the bottom of cultivation bed 10 Output end be connected to nutrition liquid pool 20.
In use, in cultivation bed 10 cultivated plant, and according to the plant and environment planted, by adjusting nutrition liquid pool 20 temperature, to adjust the solution temperature being stored in nutrition liquid pool 20, then, nutrient solution is delivered to by feed pipe 22 In cultivation bed 10, the root system of cultivated plant is set directly to be contacted with nutrient solution, on the one hand for needed for the plant cultivated provides growth Nutrient solution, on the other hand, provides corresponding temperature, to reach its optimum growh state using the temperature of nutrient solution for root system of plant Temperature, it is ensured that plant growth.
As shown in Figures 2 and 3, cultivation bed 10 of the invention can be strip, and by waterproof or be covered with antiseepage film 26 Foam tank or brick groove constituted, and a number of fixed planting pot 11 is uniformly arranged in cultivation bed 10, by fixed planting pot 11 Middle a certain amount of matrix 12 of installing, to cultivated plant.Coordinate and install nutrient solution in the bottom of cultivation bed 10, think that cultivated plant carries For certain nutriment.
A kind of culture apparatus accurately controlled for root system of plant temperature of the present invention, with conventionally employed embedded ground hot line and Torch mode of heating is compared, and because nutrient solution directly contacts progress heat exchange with root system, heat exchange coefficient is done, therefore, Air in plant production can be greatly lowered and adds the energy consumption of cooling, while in turn ensure that the uniform of plant nutrient is supplied with stable.
Embodiment two
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected for cultivation by feed pipe 22 with cultivation bed 10 Groove 10 provides nutrient solution needed for plant, it is preferred that flow control valve 28 is provided with the feed pipe 22, to realize to nutrient solution The control of input, prevents that nutrient solution is superfluous in cultivation bed 10, influences it to absorb.The bottom of cultivation bed 10 sets a liquid back pipe 23 and battalion Nutrient solution pond 20 is connected, to reach the purpose for reclaiming nutrient solution.
Wherein, the nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road being arranged in the pond body 24 25, cold-hot exchanging tube road 25 is connected with constant temperature water chiller/heater 27.In use, by constant temperature water chiller/heater 27 to cold-hot exchanging tube road The hot water or cold water of certain temperature are provided in 25, to change the solution temperature in pond body 24.Using constant temperature water chiller/heater 27, with The regulation of water temperature in nutrition liquid pool 20 is realized, its is with low cost, convenient to use.
Embodiment three
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected with cultivation bed 10 provides plant for cultivation bed 10 Required nutrient solution.The bottom of cultivation bed 10 sets a liquid back pipe 23 to be connected with nutrition liquid pool 20, to reach the mesh for reclaiming nutrient solution 's.
Nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road 25 being arranged in the pond body 24, battalion Nutrient solution pond 20 includes pond body 24 and the cold-hot exchanging tube road 25 that is arranged in the pond body 24, described cold-hot exchanging tube road 25 with One constant temperature water chiller/heater 27 is connected.
Wherein, cold-hot exchanging tube road 25 is arranged on the medial surface of pond body 24, makes the water temperature in cold-hot exchanging tube road 25 straight Connect and directly carry out temperature exchange with nutrient solution in pond body 24, to improve its heat exchange coefficient, improve its firing rate.In order to keep away Exempt from nutrient solution and corrosion is produced to cold-hot exchanging tube, the present embodiment is provided with an antiseepage film 26 on the surface of cold-hot exchanging tube road 25, and this is prevented The contact between nutrient solution and cold-hot exchanging tube can be separated by oozing film 26, but not influence its heat to conduct.It ensure that heat While exchange efficiency, effectively cold-hot exchanging tube is protected not to be corroded.
Example IV
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected with cultivation bed 10 provides plant for cultivation bed 10 Required nutrient solution.The bottom of cultivation bed 10 sets a liquid back pipe 23 to be connected with nutrition liquid pool 20, to reach the mesh for reclaiming nutrient solution 's.
Nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road 25 being arranged in the pond body 24, battalion Nutrient solution pond 20 includes pond body 24 and the cold-hot exchanging tube road 25 that is arranged in the pond body 24, described cold-hot exchanging tube road 25 with One constant temperature water chiller/heater 27 is connected.
Wherein, pond body 24 is made up of Heat Conduction Material, and cold-hot exchanging tube road 25 is arranged on the lateral surface of pond body 24.Utilize Constant temperature water chiller/heater 27 feeds hot and cold water into cold-hot exchanging tube, and the heat of hot and cold water is transferred to pond body 24 through cold water water lines On, using pond body 24 to realize its heating or cooling to nutrient solution.
Embodiment five
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected with cultivation bed 10 provides plant for cultivation bed 10 Required nutrient solution.The bottom of cultivation bed 10 sets a liquid back pipe 23 to be connected with nutrition liquid pool 20, to reach the mesh for reclaiming nutrient solution 's.
Nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road 25 being arranged in the pond body 24, battalion Nutrient solution pond 20 is made around by cold-hot exchanging tube road 25, and cold-hot exchanging tube road 25 is connected with a constant temperature water chiller/heater 27.Make The temperature of water body is directly transferred in nutrition liquid pool 20 through cold-hot exchanging tube body in used time, cold-hot exchanging tube road 25, with realization pair The heating or cooling of nutrient solution in nutrition liquid pool 20.Its simple in construction, processing cost is cheaper.
Embodiment six
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected with cultivation bed 10 provides plant for cultivation bed 10 Required nutrient solution.The bottom of cultivation bed 10 sets a liquid back pipe 23 to be connected with nutrition liquid pool 20, to reach the mesh for reclaiming nutrient solution 's.
Wherein, the nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road being arranged in the pond body 24 25, cold-hot exchanging tube road 25 is connected with constant temperature water chiller/heater 27.
The present embodiment is provided with a temperature inductor 31 in nutrition liquid pool 20, for sensing nutrient solution in nutrition liquid pool 20 Temperature, to ensure the accuracy of solution temperature in cultivation bed 10, to prevent from providing excessive temperature or cross the nutrient solution of low temperature, So as to cause the damage to root system of plant, and a liquid level gauge 36 is set to be sought to detect in nutrition liquid pool 20 in the nutrition liquid pool 20 Nutrient solution water level.Coordinate in cultivation bed 10 provided with a temperature sensor 33 for perceiving temperature in cultivation bed 10
The present embodiment is also additionally provided with a fluid level controller 32 for being used to control nutrient solution water level, the liquid in the cultivation bed 10 The one end of level controller 32 is connected by liquid back pipe 23 with nutrient solution, and the setting flow control valve 28 on feed pipe 22.
In order to realize the intelligentized control method of the present invention, the present embodiment also includes a controller 30, temperature sensor 33, temperature Inductor 31, fluid level controller 32, flow control valve 28, water pump 21 and constant temperature water chiller/heater 27 respectively with the electrical phase of controller 30 Even, controller 30 provides its operating voltage by a power supply 34.
In use, the control constant temperature of controller 30 water chiller/heater 27 produces the water of certain temperature, and it is delivered to cold-hot exchanging tube It is interior, to change the solution temperature in nutrition liquid pool 20, and nutrient solution in nutrition liquid pool 20 is detected using temperature inductor 31 Temperature is sent to controller 30, and when nutrient solution reaches required temperature, control driving water pump 21 is worked, and nutrient input is sent into cultivation In groove 10, using the temperature sensor 33 in cultivation bed 10, the temperature of root system of plant is obtained, when Root temperature is relatively low, can be led to Cross control constant temperature water chiller/heater 27 and improve solution temperature, vice versa, to realize in its automatic intelligent control cultivation bed 10 Root temperature.So that the feedback regulation control of nutrition liquid pool 20 and Root temperature is realized, accurately to control Root temperature.
Embodiment seven
Refer to shown in Fig. 1 and Fig. 2, a kind of culture apparatus accurately controlled for root system of plant temperature of the invention, its Including cultivation bed 10 and nutrition liquid pool 20, wherein, cultivated plant is used in cultivation bed 10, nutrition liquid pool 20 to be used to store nutrition Liquid.A water pump 21 built in nutrition liquid pool 20, and the output end of water pump 21 is connected with cultivation bed 10 provides plant for cultivation bed 10 Required nutrient solution.The bottom of cultivation bed 10 sets a liquid back pipe 23 to be connected with nutrition liquid pool 20, to reach the mesh for reclaiming nutrient solution 's.
Wherein, the nutrition liquid pool 20 in the present embodiment includes pond body 24 and the cold-hot exchanging tube road being arranged in the pond body 24 25, cold-hot exchanging tube road 25 is connected with constant temperature water chiller/heater 27.
In order to realize that it reaches that different temperatures is continuous to nutrient solution in nutrition liquid pool 20 and cultivation implants Root temperature Automatically control, the constant temperature water chiller/heater 27 in the present embodiment is formed in parallel by the cold and hot handset of more than two constant temperature, and will be each The individual cold and hot handset of constant temperature is connected on a contact-making switch 35, and controller 30 is connected with contact-making switch 35.In use, can be by setting The water temperature of fixed each circulating constant temperature water chiller/heater 27, makes Root temperature in nutrition liquid pool 20 and cultivation reach that different temperatures connects It is continuous to automatically control, to reach the purpose for setting the heating of crop root temperature inversion curve.Concrete structure is as shown in Figure 5.
Present invention also offers a kind of method of accurate control root system of plant temperature, it is characterised in that:It includes following step Suddenly,
A1. the temperature of nutrient solution is to target in the Root temperature according to needed for target cultivated plant, regulation nutrition liquid pool 20 Temperature, obtains the nutrient solution of certain temperature.
A2. the nutrient input of acquisition is delivered in cultivation bed 10, to change target cultivated plant root system temperature in cultivation bed 10 Degree.
In order to further shorten the temperature control time, temperature control effect is improved.When needing the Root temperature of target cultivated plant During less than room temperature, the temperature of nutrient solution is to the 3-5 degree for being less than Root temperature needed for target cultivated plant in regulation nutrition liquid pool 20; When the Root temperature for needing target cultivated plant is higher than room temperature, the temperature of nutrient solution is to higher than target in regulation nutrition liquid pool 20 The 3-5 degree of Root temperature needed for cultivated plant.
In order to confirm the technique effect of the present invention, tested in the scientific research greenhouse of Ningxia horticulture industry garden, this is sent out Bright is used for the culture apparatus that root system of plant temperature is accurately controlled, and is tested for cultivated tomato.
Experimental group, uses the cultivation bed 10 of foam to increase cultivation bed 10 its heat insulating ability, in cultivation in experimental group The fixed planting pot 11 of matrix is placed with groove 10, the insulation effect to cultivation bed implants Root temperature can have not only been realized, and Tradition is also avoid to reduce cultivation flow using fixed process, improve cultivation efficiency, concrete structure is shown in such as Fig. 2 institutes Show.The surrounding of pond body 24 of nutrition liquid pool 20 using titanium tube be made cold-hot exchanging tube road 25 carry out heat exchange heating, to ensure root It is that temperature is in target temperature range.Plant 1,801 3 kinds of red red No. 1 of capital, F-189 and red crown prince respectively in cultivation bed 10 The tomato of different cultivars, and product of three kinds of different tomatoes after Root temperature control is carried out is counted respectively.
Control experiment group, uses the cultivation bed 10 of foam to increase cultivation bed 10 its gas permeability, and in cultivation bed 10 The bag containing soilless substrate equipped with matrix 12 is inside provided with to fixed root system, and is that cultivation bed 10 provides nutrient solution using nutrition liquid pool 20, Uniquely from unlike experimental group, the solution temperature in the nutrition liquid pool 20 of control experiment group does not change.In cultivation bed Capital red red No. 1, the tomato of 1,801 3 kinds of different cultivars of F-189 and red crown prince are planted in 10 respectively, and counts three kinds of differences respectively Product of the tomato after Root temperature control is carried out.
The yield of harvested three kinds of different cultivars tomatoes in control experiment group and experimental group is compared, such as Fig. 6 It is shown, it can be seen that the yield for carrying out Root temperature control tomato will be apparently higher than without the temperature controlled tomato yield of root system.Cause This, can significantly improve winter stubble tomato yield, with good promotional value by the heating of nutrition liquid pool 20.
In order to further determine that the temperature relation in Root temperature and nutrition liquid pool 20 between nutrient solution, the present invention is to winter stubble When tomato fine day, summer stubble tomato fine day and winter stubble heating tomato fine day, solution temperature, the interior bag containing soilless substrate temperature for setting matrix 12 are entered Row measuring study, shown in result of study Fig. 7, Fig. 8, Fig. 9.
Temperature indifference in Clear Days Summer nutrition liquid irrigation temperature and bag containing soilless substrate can be seen that by Fig. 7, Fig. 8, Fig. 9, and When winter stubble tomato indoor temperature is higher than solution temperature, solution temperature outline is less than 1 DEG C or so of bag containing soilless substrate temperature;And in winter stubble After the heating of tomato nutrient liquid, when room temperature will be less than solution temperature, solution temperature outline is higher than 1 DEG C or so of bag containing soilless substrate temperature. Therefore, in the winter time using the present invention device when, it is necessary to which solution temperature in nutrition liquid pool 20 is warming up to higher than root system target 1 DEG C of temperature, to reach the purpose of accurate control Root temperature.
Because root system fixed form, liquid level, the length of cultivation bed 10 and heat-insulating property all can be to roots in cultivation bed 10 Area's temperature accurately controls stabilization time to bring certain influence, therefore, and the present invention fixes the mode of net 13 by using root system, and The mode of temperature sensor 33, the purpose of accurate control Root temperature is reached by controlling nutrient solution circulation time.Wherein, root The structure of the fixed net 13 of system is as shown in Figure 4.As shown in Figures 2 and 3, root system of the invention fixation net 13 can be by being installed in cultivation Support frame 14 in training groove 10 is fixed.
The application proposes a kind of culture apparatus accurately controlled for root system of plant temperature, will can carry out the battalion of temperature adjustment Nutrient solution pond 20 is connected with the cultivation bed 10 for cultivated plant, and the mode using heating or cooling changes in nutrition liquid pool 20 Solution temperature, then, nutrient solution is imported in cultivation bed 10, directly contacted with root system of plant using nutrient solution, to reach tune The purpose of root system of plant temperature is saved, to provide a kind of method of quick change Root temperature.
A kind of culture apparatus accurately controlled for root system of plant temperature of the present invention, its simple in construction, manufacturing cost is low Honest and clean, arrangement is convenient and control is accurate, facilitates plant culture and management.With conventionally employed embedded ground hot line and torch mode of heating phase Compare, because nutrient solution directly contacts progress heat exchange with root system, heat exchange coefficient is done, and therefore, plant can be greatly lowered Air adds the energy consumption of cooling in thing production, while in turn ensure that the uniform of plant nutrient is supplied with stable.And the present invention is using close The planting environment of enclosed, it is to avoid soil-borne disease insect pest influence occurred frequently in soil root heating, Root temperature and nutrient solution be dense Spend controllability strong, production operation is convenient, is conducive to plant to carry production production energy-saving, has a extensive future.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention Within the scope of.

Claims (10)

1. a kind of culture apparatus accurately controlled for root system of plant temperature, it is characterised in that it includes:For cultivated plant Cultivation bed, for storing nutrient solution and the nutrition liquid pool of lower water temperature can be carried out, a water pump built in described nutrition liquid pool is described Water pump be connected by a feed pipe with described cultivation bed, and described cultivation trench bottom be provided with a liquid back pipe, it is described Liquid back pipe be connected with described nutrition liquid pool.
2. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 1, it is characterised in that described Nutrition liquid pool include pond body and the cold-hot exchanging tube road that is arranged in the pond body, described cold-hot exchanging tube Lu Yuyi constant temperature Water chiller/heater is connected.
3. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 2, it is characterised in that described Provided with a temperature inductor for obtaining solution temperature in nutrition liquid pool, it is additionally provided with the cultivation bed for controlling nutrition The fluid level controller of liquid water level and the temperature sensor for gathering Root temperature, and the culture apparatus also includes a controller, The temperature inductor and temperature sensor obtain temperature data, and send it to the controller, and the controller passes through The constant temperature water chiller/heater, water pump and fluid level controller are adjusted, to adjust solution temperature and water level in the cultivation bed.
4. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 2, it is characterised in that described Cold-hot exchanging tube road be arranged on described pond body medial surface, and be provided with an antiseepage film in described cold-hot exchanging tube road surfaces.
5. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 2, it is characterised in that described Pond body be made up of Heat Conduction Material, and described cold-hot exchanging tube road is arranged on described pond body lateral surface.
6. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 1, it is characterised in that described Nutrition liquid pool be to be made around by cold-hot exchanging tube road, described cold-hot exchanging tube Lu Yuyi constant temperature water chiller/heater is connected.
7. a kind of culture apparatus accurately controlled for root system of plant temperature as described in claim 2 or 5, it is characterised in that Described constant temperature water chiller/heater is formed in parallel by the cold and hot handset of more than two constant temperature.
8. a kind of culture apparatus accurately controlled for root system of plant temperature as claimed in claim 1, it is characterised in that described Fixed planting pot is provided with cultivation bed, and the fixed planting pot installs the matrix for fixing plant base portion.
9. a kind of method of accurate control root system of plant temperature, it is characterised in that:It comprises the following steps,
A1. the Root temperature according to needed for target cultivated plant, adjusts the temperature of nutrient solution in nutrition liquid pool to target temperature, obtains Take the nutrient solution of certain temperature;
A2. the nutrient input of acquisition is delivered in cultivation bed, to change target cultivated plant Root temperature in cultivation bed.
10. a kind of method of accurate control root system of plant temperature as claimed in claim 9, it is characterised in that:When needing target When the Root temperature of cultivated plant is less than room temperature, the temperature of nutrient solution is to less than needed for target cultivated plant in regulation nutrition liquid pool The 3-5 degree of Root temperature;When the Root temperature for needing target cultivated plant is higher than room temperature, nutrient solution in regulation nutrition liquid pool Temperature is extremely higher than the 3-5 degree of Root temperature needed for target cultivated plant.
CN201611084369.0A 2016-11-30 2016-11-30 A kind of culture apparatus accurately controlled for root system of plant temperature Pending CN107027404A (en)

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