CN108925281B - A bucket cultivated in a pot for analyzing heat is to influence of wheat root system distribution state - Google Patents

Abstract

The invention provides a pot culture bucket for analyzing the influence of temperature rise on the distribution state of a wheat root system, wherein a plurality of transverse cut openings and sieve pore supporting plates for growth and positioning of the wheat root system are arranged along the height direction through the pot culture bucket with an opening at the upper part; the plurality of transverse openings are arranged on the side wall of the pot barrel at intervals; the sieve mesh supporting plates are arranged on the inner side of the potting barrel at intervals up and down so as to divide the substrate in the barrel body into a plurality of layers of mutually independent wheat root growth spaces; and each layer of circumferential side wall of the pot barrel is provided with a disc-shaped waterway backflow heating pipe unit. According to the invention, the wheat root system in the required soil layer is intercepted in a targeted manner, so that the wheat root system of the wheat is cut off more conveniently and rapidly, the integrity of the whole soil layer is ensured, the growth condition of the wheat root system is convenient to observe, the soil temperature of the growth environment of the plant to be tested can be accurately controlled, the spatial distribution of the wheat root system can be measured in situ, the accuracy of test data is improved, and the purposes of space integration and convenient operation can be achieved.

Description

A potted bucket used to analyze the effect of increasing temperature on the distribution of wheat roots

technical field

The invention relates to the field of crop cultivation, in particular to a potted device for researching and analyzing the influence of temperature increase on the growth and distribution state of wheat roots.

Background technique

As the global climate changes, global warming has become an increasingly serious problem. The fourth assessment report of IPCC (2007) shows that the global average temperature has increased by 0.56°C-0.92°C in the past 100 years, and the global temperature will increase by 1.8°C-4.0°C by the end of the 21st century (IPCC, 2007). The "National Assessment Report on Climate Change" pointed out that China's annual average surface temperature has increased significantly in the past 100 years, with a temperature rise of about 0.5-0.8°C, which is slightly higher than the global average temperature increase (0.6±0.2°C) during the same period. The increase in global temperature in recent years has brought new challenges and opportunities to scientific research. The growth of wheat requires a suitable temperature. As the global climate warms, the yield of wheat will be greatly affected. Various studies have inconsistent results on whether wheat yield increases under warming, especially less research on soil warming. How to study the root growth of wheat under soil warming and high temperature environment has always been a difficult problem in this field. In the process of scientific research, how to solve soil warming in a real and energy-saving way, using simplified and precise tools has received more and more attention. more attention. Existing warming devices only increase the air temperature, and cannot study the influence of warming on the root system of wheat well. The growth of the root system will also greatly affect the growth of wheat, so the experimental data obtained are not accurate enough. There are very few experiments on soil warming, but the equipment is relatively simple, and there is no special soil warming equipment. In view of the particularity of wheat as a close-planted crop, and the root environment has a great impact on wheat, it is necessary to develop a device specifically for wheat soil warming. Since most of the commonly used warming devices on the market heat the air, there are few mature products that heat the soil. Even with simple soil warming equipment, it is impossible to truly simulate the space for soil temperature rise. Differences; almost all heating devices are heated independently. Due to the limitation of the temperature control unit, it is impossible to ensure that the temperature rise between different heating devices reaches a consistent level. At the same time, no suitable soil warming equipment has been found in the world. Even if there is, the high price of imported products from abroad cannot be widely promoted and applied in China. Various problems will arise in the management of products and in the negotiation and use with manufacturers.

Contents of the invention

The purpose of the present invention is to provide a potted bucket for analyzing the influence of temperature increase on the distribution of wheat roots. The potted bucket can be used to study the soil growth and distribution of roots of plants to be tested, and can measure the spatial distribution of plant roots in situ. The design of the device is ingenious , Novel structure, easy to install and use.

To achieve the above object, the present invention is achieved through the following technical solutions:

A potting bucket for analyzing the influence of temperature increase on the distribution state of wheat roots, including a potting bucket with an open upper part; plate, the sieve supporting plate divides the substrate in the potting bucket from top to bottom into multiple independent substrate layers to form a multi-layer wheat root growth space; and is located on the potting bucket side below each of the sieve supporting plates The wall is provided with corresponding cross-cut openings; the inner wall of the potting bucket is also provided with a heating unit for increasing the temperature of the substrate.

Further, the circumferential contour size of the sieve hole supporting plate matches the inner cavity size of the potting bucket; each of the sieve hole supporting plates is also provided with a positioning support rod; the sieve hole supporting plate passes through the The positioning support rod is hung on the side wall of the potted bucket to support and fix the sieve hole supporting plate.

Further, the positioning support rod is arranged at the edge of the screen hole support plate, and the positioning support rod is embedded in the groove hole of the inner side wall of the potting bucket.

Further, at least one or more second cross-cut openings are provided between adjacent cross-cut openings.

Further, the main body of the heating unit is a disc-shaped water return heating pipe, and water return heating pipes are provided on the circumferential side walls of each layer of the potting barrel, and the water return heating pipe inlet and outlet are connected to the separate heating pipes. The water inlet and outlet of the water circulation device are connected.

Further, the potting barrel includes a barrel wall and a barrel bottom made of PPR material, and the barrel wall on each side of the potting barrel is sequentially provided with an outer PPR material barrel wall, a second outer layer of foam insulation, and a tray. Shaped water return heating pipe unit and stainless steel lining.

Further, the positioning support rod includes a hook portion and an extension portion; one end of the hook portion is fixedly connected to the screen hole support plate, and the other end extends upward and is hung on the side wall of the potting bucket to Supporting and fixing the sieve hole support plate; the extension part is a structure extending outward from the outer end of the hook part.

Further, temperature sensors are installed on both sides of the barrel wall of the potting bucket; the detection end of the temperature sensor is in the middle of the height direction of each substrate layer, and is used to detect the temperature of the environment inside and outside the potting bucket.

Further, the cross-cutting opening is sealed by a rubber clip to realize the sealing connection of the upper and lower barrel walls.

Further, the potting bucket is a cuboid barrel-shaped structure.

Compared with prior art, the beneficial effect of the present invention is:

1. The potting bucket of the present invention can intercept the wheat root system in the desired soil layer in a targeted manner, so that the wheat root system of wheat is cut off more conveniently and quickly, ensuring the integrity of the entire soil layer, facilitating observation of the growth of the wheat root system, and can accurately treat the wheat root system of the test plant. The soil temperature of the growing environment is controlled, and the spatial distribution of the wheat root system can be measured in situ, the accuracy of the test data can be improved, and the purpose of space intensive and convenient operation can be achieved.

2. The potting bucket of the present invention utilizes heat energy efficiently, and effectively realizes the control of the temperature of the substrate layer through water heating, and the temperature increase is stable and even, and energy-saving and environment-friendly.

3. The potting bucket of the present invention is ingenious in design, novel in structure, easy to install and use, and the device can be reused, which is economical and practical; when scientific researchers use the device to conduct experiments on the influence of temperature increase on wheat root growth and distribution, the entire operation method is convenient and greatly improved. The labor intensity of scientific research personnel is reduced, and the accuracy of experimental data results can be improved.

Of course, any device implementing the present invention does not necessarily need to simultaneously achieve all the advantages described above.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the explosion schematic diagram of installation structure of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the present invention;

Fig. 3 is the front view of the present invention;

Fig. 4 is a schematic diagram of the cut-off structure of the soil layer from the cross-cut opening C-C of Fig. 3 of the present invention;

Fig. 5 is a sectional view of the present invention;

Fig. 6 is a side cut sectional view of the present invention;

Fig. 7 is a side cut sectional view of the present invention;

Fig. 8 is a layout diagram of the water return heating pipe unit of the present invention;

Fig. 9 is a schematic diagram of the heat pipe unit structure and water flow in and out of the present invention;

Fig. 10 is a schematic diagram of series use of the present invention;

Explanation of symbols in the figure:

10. Potted plant barrel; 11. Cross-cut opening; 20. Sieve hole support plate; 21. Positioning support rod; 211. Hooking part; 212. Extension part; 30. Disk-shaped waterway return heating pipe unit; 40. Cutter ; 50, wheat roots.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In conjunction with accompanying drawing 1 to Fig. 10, the present invention is described further:

In conjunction with accompanying drawing 1 and Fig. 2, the potted bucket that is used to analyze the influence of temperature increase on wheat root system distribution state comprises the wheat potted bucket 10 of upper opening; Said potted bucket 10 is provided with a plurality of transverse openings 11 along the height direction and the sieve supporting plate 20 for the growth and positioning of the wheat root system 50; a plurality of the cross-cutting openings 11 are arranged at intervals on the side wall of the potting bucket 10; The inner side of the potting barrel 10 realizes that the inner matrix of the barrel is divided into the space for the growth of the independent wheat root system between multiple layers; every layer of the circumferential side wall of the potting barrel 10 is provided with a disc-shaped waterway return heating pipe unit 30 .

The present invention does not affect the growth of the wheat root system 50 of wheat by arranging the sieve support plate 20; at the same time, combined with the corresponding multi-layer cross-cut opening 11, the wheat root system 50 in the required soil layer is targetedly intercepted, so that the wheat root system 50 of wheat Cutting is more convenient and fast, which ensures the integrity of the entire soil layer, and is convenient for observing the growth of wheat root system 50, which is convenient for scientific research; the whole structure is simple and practical, with high space utilization rate, reusable, convenient and fast operation, reasonable setting, and compact structure .

In conjunction with accompanying drawing 7, described potted plant barrel 10 is square barrel-shaped structure, and volume is less, and the carrying out of convenient field plot experiment research; Described potted plant barrel 10 comprises the barrel wall and barrel bottom that PPR material is made, and described potted plant barrel 10. The barrel wall on each side is sequentially provided with an outer PPR material barrel wall, a sub-outer foam heat insulation layer, a disc-shaped waterway return heating pipe unit 30 and a stainless steel lining from outside to inside.

The cross-cut opening 11 is a strip-shaped opening structure; the cross-cut opening 11 is sealed by a rubber clip to realize the sealing connection of the upper and lower barrel walls.

With reference to accompanying drawing 5, described sieve hole supporting plate 20 is also provided with positioning support bar 21; Sieve hole supporting plate 20; the circumferential contour size of the sieve hole supporting plate 20 matches the inner cavity size of the potting bucket 10; the positioning support rod 21 is arranged at the edge of the sieve hole supporting plate 20, and The positioning support rod 21 is embedded in the groove hole of the inner wall of the potting bucket 10 .

The positioning support rod 21 includes a articulated part 211 and an extension part 212; one end of the articulated part 211 is fixedly connected to the screen support plate 20, and the other end extends upwards and is hung on the side of the potting bucket 10. On the wall; the extension part 212 is a structure extending outward from the outer end of the hook part 211 . The hooking part 211 is an L-shaped hook structure, and the hooking part 211 realizes the hooking of the sieve hole supporting plate 20; by setting the embedded positioning support rod 21, the cutting knife 40 can be realized from each layer. When the cutting opening 11 completely traverses the entire cultivated soil layer, the positioning support rod 21 is embedded in the side wall of the barrel without interfering with the cutter 40, and the structure is simple and easy to operate; at the same time, the extension part 212 can be used as a The handle is used to facilitate the cutting of the whole layer of the soil layer in the later stage, and the extension part 212 can be directly held by hand to pull out the sieve hole supporting plate 20 and the soil layer on the sieve hole supporting plate 20 to study the condition of the wheat root system. Convenient.

8 and 9, the water return heating pipe unit 30 is sequentially connected end to end and arranged along the circumferential direction of the barrel wall of the potting barrel 10; The hot water outlet of the heat unit is connected, and the hot water outlet of the water return heating plate at the end is connected with the return water port of the heat exchange unit; the left and right water return heating pipes have their own outlets; The hoses of the connectors are connected for easy assembly and disassembly. The water return heating pipe unit 30 includes heat exchange pipes and joints, and the disc-shaped water return heating pipe unit 30 is detachably arranged on the four walls of the barrel; through water heating, the temperature control is effectively realized, and It can also achieve the purpose of energy saving, can efficiently use heat energy, and adopts water heating to increase temperature, and the temperature increase is stable and uniform; the potting bucket of the present invention utilizes heat energy efficiently, and through water heating, it can effectively control the temperature of the substrate layer, and the temperature increase is stable. Uniform, energy saving and environmental protection.

Temperature sensors are arranged on both sides of the barrel wall of the potting bucket 10 ;

The substrate is soil;

As a preferred solution, the cultivation soil of the potting bucket 10 is also provided with clay airgel, which can strengthen the strength, toughness and mechanical properties of the cultivation soil during the cultivation of wheat, and the soil quality is good in agglomeration, which can effectively avoid When cross-cutting the wheat root system 50 and pulling out the soil layer as a whole, the damage to the growth of the wheat root system 50 due to the loose damage of the soil can better observe the distribution and growth status of the cross-cut wheat root system 50 and other scientific researches .

As a preferred solution, in conjunction with accompanying drawing 6, the barrel wall of the potting barrel 10 is supported by opaque materials, which reduces the impact of light on the wheat root system. The potted bucket is divided into four layers from top to bottom by the sieve hole supporting plate 20; 60cm and 60-100cm, the four-layer root system is convenient to count the spatial distribution of the root system. This scheme realizes the positioning and setting in the potted plant bucket 10 through the three-layer sieve hole supporting plate 20 arranged in sequence up and down respectively through the positioning support rod 21 on the side; The cross-cutting opening 11; and the potting bucket 10 corresponding to the middle position of each layer of matrix is also provided with a cross-cutting opening 11.

As a preferred solution, the mesh supporting plate 20 is made of steel plate, and a plurality of through holes are closely distributed on the mesh supporting plate 20, so that the wheat root system 50 can normally grow downward naturally.

The temperature increasing treatment of the potting bucket 10 can be divided into two types of temperature increasing tests, including different temperature gradient heating in different layers and heating at the same temperature level. The upper and lower ends of the adjacent disc-shaped waterway return heating pipe unit 30 are respectively provided with male and female joints and rubber hoses, and the joints of the adjacent disc-shaped waterway return heating pipe units 30 and the rubber hoses are plugged together to form a sealed connection; At least one of the joints and the heat exchange tubes, and the rubber hose and the heat exchange tubes is connected by a flexible piece. The potting bucket 10 can carry out regional temperature control and overall temperature control by adjusting the sockets up and down. When the temperature sensor senses that the temperature of the soil layer is higher than or lower than the setting, the temperature sensor is used to transmit the collected data to the control unit of the temperature adjustment mechanism, and the temperature control unit is used to adjust the water temperature by controlling the heating system . Each layer of the wall of the potting barrel 10 is provided with a temperature sensor inside and outside, and the temperature sensor is used to detect the ambient temperature difference inside and outside the barrel; when the monitored inside and outside temperature difference is less than the set temperature difference value, the control unit heats the Start; when the monitored internal and external temperature difference is equal to the set temperature difference value, the control unit will stop heating; the temperature-increasing bucket can be used for pot experiments in deep soil layers, which can truly simulate soil temperature increase and accurately treat the growth of test plants The ambient soil temperature is controlled, and the spatial distribution of wheat roots can be measured in situ, improving the accuracy of test data.

In conjunction with accompanying drawing 3 and Fig. 4, when the present invention is used, at first the cross-cut opening on the potting bucket is sealed with a rubber clip, and by hanging the mesh supporting plate on the potting bucket, fill in the clay airgel After cultivating the soil, plant the wheat seedlings in the first layer of cultivating soil on the upper end of the potting bucket; after the wheat grows, use the incision of the cutter to pass through the rubber clip on the cross-cutting opening and cut across the entire cultivating soil layer, The soil layer is cut off in the middle of each layer and under the sieve support plate; the scientific research personnel hold the extension part and lift the cut soil block of each layer out of the potting bucket as a whole, which can realize the upper and lower layers of each layer. The wheat root system at the middle and lower cut-off levels is studied separately, that is, the wheat root system at the two ends of the heating unit and the middle position of the heating unit in the temperature increase experiment of each layer are studied separately, and the setting is reasonable to achieve reasonable and effective extraction of experimental data. , while improving the accuracy of the test data.

Combined with Figure 10, this device can be used independently or in series, without being limited by the location of use; the unique temperature increasing comprehensive system ensures the consistency of temperature in different temperature increasing boxes; at the same time, different temperature increasing gradients can be set to increase the number of tests of diversification. The potting bucket of the present invention has ingenious design, novel structure, convenient installation and use, reusable device, economical and practical, flexible use, reasonable design and compact structure; and the whole operation method is convenient, which greatly reduces the labor intensity of scientific researchers and improves the experimental The efficiency greatly improves the research accuracy.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature indirectly through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (5)

1. be used for analyzing the potted plant bucket that temperature increase affects on wheat root system distribution state, it is characterized in that: potted plant bucket (10) top is exposed; Described potted plant bucket (10) is used for the substratum of splendid attire cultivation; Described potted plant bucket (10) ) is provided with a plurality of sieve supporting plates (20) along its height direction, and the sieve supporting plates (20) divide the substrate in the potting bucket (10) from top to bottom into a plurality of independent substrate layers, forming Multi-layer wheat root growth space; the side wall of the potted bucket (10) is provided with corresponding cross-cut openings (11), and the cross-cut openings (11) are located on each of the sieve hole supporting plates (20) below; the cross-cut opening (11) is a strip-shaped opening structure; the cross-cut opening (11) is sealed by a rubber clip to realize the sealing connection of the upper and lower barrel walls; The potting bucket (10) includes a bucket wall and a bucket bottom made of PPR material, and the bucket wall on each side of the potting bucket (10) is sequentially provided with an outer PPR material bucket wall and a second outer layer of foam heat insulation from outside to inside. layer, disc-shaped waterway return heating pipe unit (30) and stainless steel lining; Each matrix layer is provided with the disc-shaped water return heating pipe unit, and the water inlet and outlet of the disc-shaped water return heating pipe unit (30) communicate with the water inlet and outlet of the hot water circulation device provided separately; The temperature increasing treatment of the potting bucket (10) is divided into two types of temperature increasing tests, including heating at different temperature gradients in different layers and heating at the same temperature level; the potting bucket (10) can perform zone control and overall temperature control; The circumferential profile size of the sieve hole supporting plate (20) matches the inner cavity size of the potting bucket (10); each of the sieve hole supporting plates (20) is also provided with a positioning support rod (21); The sieve supporting plate (20) is hung on the side wall of the potting bucket (10) by the positioning support rod (21) to support and fix the sieve supporting plate (20); By setting the sieve support plate (20), the growth of the wheat root system (50) of wheat will not be affected; at the same time, combined with the corresponding multi-layer cross-cutting opening (11), the wheat root system (50) in the required soil layer is targetedly intercepted, The cutting of the wheat root system (50) of wheat is more convenient and quick, the integrity of the whole soil layer is ensured, and the growth condition of the wheat root system (50) is convenient to be observed. 2. The potted bucket for analyzing the influence of temperature increase on the distribution state of wheat roots according to claim 1, characterized in that: the positioning support rod (21) is arranged at the edge of the sieve hole supporting plate (20) , and the positioning support rod (21) is embedded in the groove hole of the inner side wall of the potting bucket (10). 3. The potted bucket for analyzing the influence of temperature increase on the distribution state of wheat roots according to claim 2, characterized in that: the positioning support bar (21) includes a articulated part (211) and an extension part (212); One end of the hooking part (211) is fixedly connected with the sieve hole supporting plate (20), and the other end extends upwards and is hung on the side wall of the potting bucket (10) to support and fix the sieve hole supporting plate ( 20); the extension part (212) is a structure extending outward from the outer end of the hook part (211). 4. the potted bucket that is used to analyze temperature increase according to claim 1 influence on wheat root system distribution state, is characterized in that: the inside and outside of the bucket wall both sides of described potted bucket (10) is all provided with temperature sensor; The detection end of the temperature sensor is at the middle position in the height direction of each matrix layer, and is used for detecting the temperature of the environment inside and outside the potting barrel (10). 5. The potting bucket for analyzing the influence of temperature increase on the distribution state of wheat roots according to claim 1, characterized in that: the potting bucket (10) is a square bucket-shaped structure.

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