Equipment and method for evaluating physiological indexes of water-soluble fertilizer

Abstract

The invention relates to equipment and a method for monitoring physiological indexes of a water-soluble fertilizer. A light-transmitting plate covered with capillary action media such as non-woven fabric, filter paper or Chinese art paper serves as a monitoring plate, a water-soluble fertilizer solution is evenly distributed on the monitoring plate through the capillary action, the permeation and distribution states of the fertilizer in soil are simulated, and the influence of the fertilizer solution on seeds such as the growth speed and the germination rate is monitored in real time. Therefore, the physiological indexes of the water-soluble fertilizer can be accurately evaluated. According to the overall design of the equipment, the testing process of the physiological indexes of the water-soluble fertilizer is simpler and more efficient, errors caused by manual operation are reduced, the testing efficiency and accuracy are improved, the physiological indexes of the water-soluble fertilizer can be tested repeatedly, the reliability and comparability of testing results are improved, and the testing cost is reduced. More scientific and reasonable fertilizer use suggestions can be provided for agricultural production, and the yield and quality of crops are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizer index evaluation, and more specifically relates to a device and an evaluation method for evaluating physiological indexes of water-soluble fertilizers. Background Art

[0002] In the agricultural field, the rational use of fertilizers is crucial to improving plant yield and quality. As an important type of fertilizer in modern agricultural production, water-soluble fertilizers have attracted widespread attention due to their high solubility and easy absorption and utilization by plants. However, the existing fertilizer index detection methods have certain limitations and shortcomings in evaluating water-soluble fertilizers. The complex chemical or biological analysis methods in the prior art often involve multiple steps, including sample pretreatment, chemical reaction, biological reaction, etc., and the entire detection process is time-consuming. At the same time, due to the need to use high-quality chemical reagents, biological reagents and high-precision instruments and equipment, the detection cost is relatively high. In addition, the existing detection methods often have many steps, and each step requires strict control of experimental conditions, such as temperature, pH value, reaction time, etc., and multiple washing, centrifugation, separation and other operations are required. The high-precision instruments and equipment required, such as high-performance liquid chromatographs and mass spectrometers, are not only expensive, but also require regular maintenance and calibration, which increases the complexity and workload of the experiment, and requires high requirements for operators with relevant professional knowledge and skills. In practical applications, it is often difficult to popularize to grassroots testing institutions or small laboratories.

[0003] The physiological effects of fertilizers on plants are not only reflected in the absorption of nutrients, but also include the effects on plant hormone secretion, photosynthesis efficiency, water use efficiency, etc. Existing fertilizer index detection technologies usually only focus on the direct determination of fertilizer components, while ignoring the evaluation of the actual physiological effects of these components in plants, and there are serious deficiencies in the evaluation of plant physiological responses.

[0004] The transformation and migration of fertilizers in soil and their interaction with plant roots is a complex process involving the synergistic effects of multiple biological, chemical and physical factors. Existing detection technologies often lack an in-depth understanding and evaluation of this process, resulting in biased judgments on fertilizer effects and an inability to elucidate the soil-plant-fertilizer interaction mechanism.

[0005] In summary, existing fertilizer testing methods often focus on the determination of the content of a single nutrient element, such as nitrogen, phosphorus, potassium, etc., but are unable to assess the balance of multiple nutrients in fertilizers. Water-soluble fertilizers may contain a variety of trace elements and organic substances. The interactions between these components and their combined effects on plant growth are complex and varied, and existing testing methods are often unable to fully capture this information, resulting in insufficient assessment of the balance of nutrients in fertilizers, and unable to accurately assess the types, quantity, and activity of microorganisms in fertilizers. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a device and an evaluation method for evaluating the physiological indicators of water-soluble fertilizers. The device and the evaluation method are expected to comprehensively consider the comprehensive effects of various components in the fertilizer and their specific effects on plant growth. At the same time, they also need to have the advantages of simple operation, rapidity and accuracy, and low cost to meet the actual needs in agricultural production practice.

[0007] To achieve the above object, in a first aspect, the present invention provides a device for evaluating physiological indicators of water-soluble fertilizers, comprising:

[0008] A receiving tank;

[0009] Fixed structure;

[0010] A monitoring plate, fixed in the containing groove by the fixing structure, wherein the monitoring plate is a light-transmitting plate provided with a capillary action medium;

[0011] The seed positioning structure is horizontally arranged on the monitoring board, and the connection line formed by several of the seed positioning structures is located at one third to two thirds of the extension from the proximal end of the monitoring board connected along the bottom of the accommodating groove to the distal end of the monitoring board.

[0012] A light-transmitting plate covered with a capillary medium such as non-woven fabric, filter paper or rice paper is used as a monitoring plate, and the water-soluble fertilizer solution is evenly distributed on the monitoring plate by capillary action, simulating the penetration and distribution state of fertilizer in the soil, and monitoring the effect of the fertilizer solution on the seeds, such as growth rate, germination rate, etc., in real time, so as to accurately evaluate the physiological indicators of water-soluble fertilizer. The seed positioning structure is horizontally arranged on the monitoring plate to ensure that the seeds remain fixed and evenly distributed during the test process, avoiding the test error caused by improper seed position. The connecting line formed by the seed positioning structure is located at one-third to two-thirds of the extension from the proximal end to the distal end of the monitoring plate. This design makes the seeds in the best area for fertilizer solution penetration, ensuring that the seeds can fully absorb the fertilizer, thereby improving the accuracy and reliability of the test. The overall design of the equipment of the present invention makes the test process of the physiological indicators of water-soluble fertilizers more concise and efficient, reduces the errors caused by human operation, improves the test efficiency and accuracy, can realize multiple and repeated tests of the physiological indicators of water-soluble fertilizers, improves the reliability and comparability of the test results, and can provide more scientific and reasonable fertilizer use suggestions for agricultural production, and improve crop yield and quality.

[0013] In some preferred embodiments of the above device, the seed positioning structure is a groove for accommodating the seed, and the shape and size of the groove are adjustable. In this way, after the seed is placed in the seed positioning structure, the water-soluble fertilizer is siphoned upward by the capillary action medium and is more efficiently and accurately delivered to the seed. At the same time, when another capillary action medium layer is covered on the seed, the monitoring board is flat as a whole, which can further enhance the siphon effect, promote the seed to absorb the fertilizer nutrients, and shorten the evaluation time.

[0014] In some preferred embodiments of the present invention, the angle formed by the plane where the monitoring board is located and the plane where the accommodating groove is located is 90° to 45°. In this way, the seeds on the monitoring board can more effectively receive light from the outside, improve the utilization rate of light, and help promote the photosynthesis of seeds. Such an angle range can improve the distribution of fertilizer nutrients on the monitoring board. When the fertilizer solution penetrates into the monitoring board through the capillary action medium, it can effectively prevent the fertilizer solution from accumulating on the monitoring board or forming an uneven fertilizer layer, so that the water-soluble fertilizer solution flows more evenly to the root area of ​​the seed, ensuring that each seed can obtain sufficient nutrients. In addition, in a test environment with low light intensity or high fertilizer solution concentration, the test conditions can be optimized by adjusting the angle to ensure the accuracy and reliability of the test results. The design of adjustable angle also allows the device to be applied to different types of seeds and water-soluble fertilizer tests, improving the flexibility and applicability of the device. Especially in a laboratory environment, the position and angle of the light source may be limited. By adjusting the angle of the monitoring board, it can be ensured that the seeds can obtain the best lighting effect under any lighting conditions, improving the accuracy and reliability of the test.

[0015] In some embodiments of the present invention, the fixing structure is a fixing clip, such as a butterfly clip. Such a part is easy to obtain and easy to operate, and does not require the use of precise and expensive equipment parts, which simplifies the structure of the device of the present invention and is easy to promote and apply in actual production.

[0016] In some preferred embodiments of the present invention, the above-mentioned equipment for evaluating the physiological index of water-soluble fertilizer also includes a pH sensor, a temperature sensor, a humidity sensor, a light sensor and a conductivity sensor. Real-time monitoring of key physiological indicators in the application environment of water-soluble fertilizers can fully reflect the pH, temperature, humidity, light intensity and conductivity of the solution of the soil or medium, and can more accurately evaluate the physiological effects of fertilizers under different environmental conditions, such as the consumption of mineral salts and other substances in the fertilizer by the fluctuation of pH value and conductivity. The data monitored in real time can help researchers or agricultural producers to adjust the use strategy of fertilizers in time according to changes in environmental conditions. For example, when the pH value of the soil deviates from the appropriate range, the type or amount of fertilizer can be adjusted in time to maintain the balance of soil pH. Similarly, when insufficient light or excessively high temperature is monitored, corresponding measures can be taken to improve environmental conditions and promote the growth and development of plants. Under suitable environmental conditions, the growth and development speed of plants will be faster, and the yield and quality will be higher. The integration of multiple sensors enables the present invention to have a stronger level of intelligence. Through data analysis algorithms, the device can automatically identify the changing trends of environmental parameters, predict possible problems, and give corresponding suggestions or warnings. The intelligent function can greatly improve the efficiency of the device and the user experience. By adding pH sensors, temperature sensors, humidity sensors, light sensors, and conductivity sensors, the device provided by the present invention for evaluating the physiological indicators of water-soluble fertilizers is optimized to simulate the environmental parameters of plant growth, which is conducive to improving the accuracy of the evaluation, and helps to guide the optimization of fertilizer use strategies, enhance the intelligence level of equipment, promote scientific research and technological innovation, and improve agricultural production efficiency and quality.

[0017] In some preferred embodiments of the present invention, the above-mentioned equipment for evaluating the physiological indicators of water-soluble fertilizers also includes an incubator and a light source, and the light source is arranged on the inner wall of the incubator. After the incubator is introduced, key environmental factors such as temperature and humidity during the experiment can be accurately controlled to provide stable and controllable experimental conditions for the evaluation of physiological indicators of water-soluble fertilizers. Experiments in a controllable incubator environment can minimize the interference of external factors and improve the repeatability of the experiment; setting a light source can simulate different lighting conditions (such as sunshine time, light intensity, etc.) to study the physiological changes of water-soluble fertilizers under different lighting conditions. The light constant temperature incubator can provide controllable temperature and light intensity for experiments such as plant growth and seed germination, perfectly simulate day and night and seasonal lighting conditions, and provide a realistic climate growth environment for various plants. The equipment is equipped with a LED light source with higher and more uniform illumination, which can highly simulate the sunlight intensity and light cycle in the natural environment, providing excellent conditions for plant photosynthesis and growth. Light intensity has a vital impact on the growth and morphological structure of plants, and this incubator can provide the light required for plant growth as well as suitable temperature, humidity, light intensity, etc., laying the foundation for the healthy growth of plants. Secondly, it can significantly improve the germination rate of seeds. By strictly controlling the conditions of moisture, temperature, oxygen and light for seed germination, it creates the most suitable germination environment for seeds and effectively improves the germination rate of seeds.

[0018] In some preferred embodiments of the present invention, the light source is a full-band light source. A full-band light source can simulate various wavelength components in natural light, including ultraviolet light, visible light, infrared light, etc. By simulating the natural light environment, it can more effectively promote the growth and development of plants, more accurately evaluate the performance of water-soluble fertilizers in practical applications, minimize experimental errors caused by insufficient light sources or incomplete spectrum, and provide more practical guidance for agricultural production.

[0019] In a second aspect, the inventor provides a method for evaluating the physiological indicators of water-soluble fertilizers, using the device for evaluating the physiological indicators of water-soluble fertilizers described in the first aspect of the present invention, comprising the following steps:

[0020] S1, placing a fertilizer liquid to be tested with a preset concentration in the containing tank;

[0021] S2, placing the first capillary action medium flatly on the light-transmitting plate, and wetting it with the fertilizer liquid to be tested of the preset concentration;

[0022] S3, placing seeds soaked in advance with a fertilizer liquid to be tested of a preset concentration at equal intervals on the seed positioning structure;

[0023] S4, covering the first capillary action medium provided with the seed positioning structure and the seed with the second capillary action medium, and wetting it again with the fertilizer liquid to be tested of the preset concentration to obtain a monitoring plate to be tested;

[0024] S5, fixing the monitoring board to be tested in the containing groove by using a fixing structure, so that the angle formed by the plane where the monitoring board is located and the plane where the containing groove is located is 90° to 45°;

[0025] S6. Prepare several parallel samples and control samples by referring to the steps of S1-S5, culture the seeds, and give the physiological index evaluation results of the tested fertilizer according to the growth conditions of the seed roots and / or buds after 3-5 days.

[0026] In some further improved evaluation methods of the present invention, the seed positioning structure is a groove with adjustable shape and size, which is used to place seeds of different types and specifications, such as but not limited to radish seeds, rice seeds, broad bean seeds, peanut seeds, tomato seeds, etc.

[0027] According to some improved evaluation methods of the present invention, the pH value, temperature, humidity, light and conductivity values ​​in the culture process environment are obtained in real time, and timely adjustments are made to ensure stable and consistent culture conditions.

[0028] Different from the prior art, the above-mentioned method for evaluating the physiological indicators of water-soluble fertilizers requires simple equipment, is easy to prepare and maintain, reduces the experimental threshold, and enables more institutions and individuals to evaluate the physiological indicators of water-soluble fertilizers. It does not require the use of high-quality chemical reagents, biological reagents, and high-precision instruments and equipment, avoids complex chemical or biological analysis steps, greatly simplifies the experimental process, and the experimental conditions are relatively simple to control. There is no need to perform multiple washing, centrifugation, separation and other operations, which reduces the complexity and workload of the experiment. The experimental steps are intuitive and easy to understand, and the requirements for operators with relevant professional knowledge and skills are low. It is easy to promote and apply in grassroots testing institutions or small laboratories. This evaluation method not only focuses on the direct determination of fertilizer components, but also evaluates the physiological effects of fertilizers on plants through seed growth conditions. It can more comprehensively reflect the actual physiological effects of fertilizers in plants, and fills the gap in the evaluation of plant physiological responses in the prior art. By observing the growth of seeds under the action of fertilizers, we can indirectly understand the transformation, migration, and interaction process of fertilizers in the soil with plant roots, and comprehensively evaluate the comprehensive effects of various trace elements and organic substances in water-soluble fertilizers on plant growth. Evaluating the balance of multiple nutrients in fertilizers, as well as the impact of microbial types, quantity and activity on plant growth, overcomes the shortcomings of existing detection methods in evaluating the balance of fertilizer nutrients and provides strong support for the optimal formulation and rational use of fertilizers.

[0029] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0031] In the drawings of the specification:

[0032] Figure 1 A single module of a device containing tank for evaluating physiological indicators of water-soluble fertilizers according to a specific embodiment;

[0033] Figure 2 It is a multi-module of the equipment containing tank for evaluating the physiological index of water-soluble fertilizer described in the specific implementation method;

[0034] Figure 3 It is a plan view of the monitoring board described in the specific implementation method;

[0035] Figure 4 A side view of the monitoring board described in the specific implementation method;

[0036] Figure 5 A device for evaluating physiological indicators of water-soluble fertilizers as described in the specific implementation method;

[0037] Figure 6 This is a sample diagram of a blank test sample (distilled water) described in the specific implementation method;

[0038] Figure 7 FIG. 1 is a sample of a water-soluble fertilizer according to a specific embodiment;

[0039] Figure 8 Figure 2 is a sample of the water-soluble fertilizer described in the specific implementation method.

[0040] The reference numerals in the above drawings are described as follows:

[0041] 1. Receiving tank; 10. Fixed structure; 101. pH sensor; 102. Temperature sensor; 103. Humidity sensor; 104. Light sensor; 105. Conductivity sensor;

[0042] 2. Monitoring board; 201. Capillary action medium; 202. Transparent board;

[0043] 3. Seed positioning structure; 31. Groove;

[0044] 4. Incubator;

[0045] 5. Light source. DETAILED DESCRIPTION

[0046] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0047] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0048] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0049] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0050] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0051] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0052] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0053] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0054] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0055] At present, the detection and analysis of water-soluble fertilizers mostly focus on the detection of individual indicators, such as the content of major nutrients such as nitrogen, phosphorus, and potassium, while it is often difficult to effectively detect other active substances that may exist in fertilizers, such as seaweed polysaccharides, amino acids, minerals, and plant hormones in seaweed fertilizers. This leads to an incomplete evaluation of fertilizer physiological indicators, and may ignore some components that have an important impact on plant growth. In addition, most of these methods focus on the individual analysis of fertilizer components, and lack an overall evaluation method that can comprehensively consider the comprehensive effects of various components in fertilizers and their specific effects on plant growth. The evaluation of physiological indicators of water-soluble fertilizers is often not objective and accurate enough. Most detection methods are cumbersome and time-consuming, and it is difficult to meet the needs of rapid and accurate evaluation of fertilizer effects. In agricultural production practice, farmers and agricultural enterprises often need to quickly understand the advantages and disadvantages of fertilizers for a specific plant's physiological indicators, so as to adjust the fertilization plan in time and improve fertilizer utilization efficiency, but the existing detection methods cannot make efficient, comprehensive, accurate and consistent evaluations. Therefore, developing a device and evaluation method that can comprehensively and objectively evaluate the physiological indicators of water-soluble fertilizers is of great significance for guiding agricultural production and improving fertilizer utilization efficiency.

[0056] Embodiment 1

[0057] A device for evaluating physiological indicators of water-soluble fertilizers and a method for evaluating physiological indicators of water-soluble fertilizers

[0058] See also Figure 1-3 The device for evaluating the physiological indexes of water-soluble fertilizer provided by the present invention comprises: a containing tank 1 and a monitoring board 2. The monitoring board is supported and fixed in the containing tank 1 by a fixed structure butterfly clip 10. The containing tank 1 is calculated by the internal volume, and the length is about 21 cm. The monitoring board is a light-transmitting plate 202 provided with a capillary medium 201. The light-transmitting plate material can be a material with good light transmittance such as glass or organic glass, and the specifications are: length 30 cm, width 21 cm, thickness 4.5 mm. The capillary medium 201 is paper that can play a capillary water absorption role (absorb fertilizer liquid). In this embodiment, a thin (strong light transmittance) filter paper is selected, the length 30*2 is 60 cm (folded into a double layer), and the width is 21 cm. The seed positioning structure 3 is horizontally arranged on the monitoring board 2, and the connection line formed by several seed positioning structures 3 is located at one-third to two-thirds of the extension of the monitoring board proximal end to the distal end of the monitoring board connected along the bottom of the containing tank 1.

[0059] like Figure 2 The equipment shown is for Figure 1 Two partitions are arranged in the containing tank 1 to divide the containing tank 1 into three mutually isolated liquid containing chambers. Of course, it can also be three separate chambers. Figure 1 The housings shown are placed side by side to form a group of similar devices.

[0060] When the above equipment is used to evaluate the physiological indicators of water-soluble fertilizers, a quasi-vertical plate germination experiment is used. Clean the light-transmitting plate, fold the thin filter paper in half, and lay one side flat on the light-transmitting plate first. Wet the layer of filter paper in contact with the light-transmitting plate with the test water-soluble fertilizer solution first, and then use a glass rod to drive away the bubbles on the filter paper, ensuring that the filter paper is completely attached to the light-transmitting plate, and the folded edge is aligned with the bottom edge of the light-transmitting plate. Place the test seeds (radish seeds) at a position about two-thirds of the distance from the bottom of the light-transmitting plate. The glass rod can be used as a seed positioning structure, and then the test seeds are neatly arranged, with a spacing of about 1 to 2 mm between the grains. If rice seeds or broad bean seeds or other seeds of different sizes are used, they are placed at intervals of about 1-2 test seeds of the same size according to the size of the test seeds. After the seeds are placed, continue to cover the other side of the folded filter paper, and the fertilizer liquid is sucked from bottom to top through the capillary absorption of the filter paper for the seeds to absorb.

[0061] Add an appropriate amount of fertilizer liquid of a certain concentration into the containing tank, ensuring that the liquid height is 20-50mm, and then place the prepared monitoring board obliquely against the fixed structure of the containing tank. The inclination of the monitoring board (the angle between the plane where the monitoring board is located and the plane where the bottom of the containing tank is located) is 50°~40°, and the length of the monitoring board immersed in the liquid surface of the fertilizer liquid is about 55mm. Figure 3 Shows a front view of the device after loading with seeds and test solution.

[0062] If the adopted Figure 2 For the equipment components shown, try to avoid the monitoring board having an inclination that is too small, which causes the monitoring boards to overlap too closely, resulting in uneven lighting and inaccurate evaluation results.

[0063] like Figure 4 As shown, in some preferred embodiments, the seed positioning structure 3 is directly configured as a groove 31 for accommodating seeds, and the shape and size of the groove 31 can be adjusted according to the size and specifications of seeds of different plants.

[0064] like Figure 5 As shown, the device of the present invention may also include a pH sensor 101, a temperature sensor 102, a humidity sensor 103, a light sensor 104 and a conductivity sensor 105, and may be placed in an incubator 4 with a full-band light source 5 to test the fertility of the fertilizer, and the light, temperature or humidity and other details may be adjusted through the sensor and touch panel to achieve the required test environment conditions. The Wanshen LA-S series plant image analyzer system is used to take pictures of seeds taking root and germination after cultivation, please refer to Figure 6-8The blank sample (distilled water), water-soluble fertilizer sample 1 and water-soluble fertilizer sample 2 are shown in sequence, and the test results were obtained using radish seeds at the same test time under the same test environment conditions. It can be clearly seen from the figure that the fertility shown by the fertilizer physiological indicators is water-soluble fertilizer sample 1> water-soluble fertilizer sample 2> blank sample. Therefore, if the cost is similar, the fertilizer use recommendation of water-soluble fertilizer sample 1 can be given.

[0065] In other different embodiments, the device for evaluating the physiological indicators of water-soluble fertilizers and the method for evaluating the physiological indicators of water-soluble fertilizers can also be used with broad bean seeds, rice seeds, tomato seeds, etc. According to the size and specifications of the seeds, a seed positioning structure is provided to relatively stably fix the seeds on the monitoring board, and a suitable inclination (90°~45°) of the monitoring board is set.

[0066] Embodiment 2

[0067] A device for evaluating physiological indicators of water-soluble fertilizers and a method for evaluating physiological indicators of water-soluble fertilizers

[0068] Temperature is the primary reason that limits plant growth and development, and is also an important reason for the diverse distribution of plants on the earth. When the temperature is too low, it will cause cold damage to plants, resulting in stunted growth and development, and in severe cases, growth will stop. When the temperature is too high to the threshold level, it will cause heat damage to plants, causing irreversible damage to plant growth and development. Preventing or alleviating temperature stress on crops through fertilization is the easiest, lowest cost, and best way for farmers to implement, requiring only limited knowledge. Currently, there are few studies on enhancing the ability of tomatoes to resist cold and heat damage through the application of fertilizers, and the fertilizer effects of stress-resistant fertilizers on the market vary greatly. Therefore, this embodiment selects polypeptide fertilizers or seaweed polysaccharide fertilizers as test fertilizers. When using Figure 5 When the equipment shown in the figure is used to evaluate the physiological index of fertilizers, the evaluation device of the present invention can be placed in three groups of incubators for evaluating the fertilizer's resistance to cold damage and heat damage. The illumination time is 12 hours per day, and the illumination intensity is 126 μmol·m -2 ·s -2, 30 plants of each variety were treated in each treatment, and a normal temperature group of 25℃ / 20℃ (CK) (blank), a low temperature group of 25℃ / 8℃ (low temperature stress test group 1) and a high temperature group of 35℃ / 20℃ (high temperature stress test group 2) were set to test the anti-chilling and anti-heat damage fertilizer effects of polypeptide fertilizers (or seaweed polysaccharide fertilizers) sample 3 and the test fertilizer sample 4 from different sources. Red dwarf tomato seeds were used as test plant seeds. The same evaluation method as in Example 1 was used to observe the growth and development of the root system and leaf buds of tomatoes during the two fertilization periods before and after the stress in the seedling stage of tomato seeds. The effect of polypeptide fertilizers or seaweed polysaccharide fertilizers on potted tomatoes resisting or alleviating temperature stress was evaluated, thereby obtaining the evaluation results of polypeptide fertilizers or seaweed polysaccharide fertilizers, in order to provide a reference for fertilizing against chilling and heat damage in the seedling stage of facility tomatoes.

[0069] In summary, the overall design of the equipment of the present invention makes the testing process of the physiological indicators of water-soluble fertilizers more concise and efficient, reduces the errors caused by human operation, improves the testing efficiency and accuracy, can realize multiple and repeated tests of the physiological indicators of water-soluble fertilizers, improves the reliability and comparability of the test results, and can provide more scientific and reasonable fertilizer use suggestions for agricultural production, thereby improving the yield and quality of crops.

[0070] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A device for evaluating the physiological indexes of water-soluble fertilizers, characterized in that: include: A receiving groove (1); Fixed structure (10); A monitoring plate (2) fixed in the containing groove (1) via the fixing structure (10), the monitoring plate being a light-transmitting plate (202) provided with a capillary action medium (201); The seed positioning structure (3) is horizontally arranged on the monitoring board (2), and the connection line formed by a plurality of the seed positioning structures (3) is located at one third to two thirds of the extension from the proximal end of the monitoring board connected along the bottom of the accommodating groove (1) to the distal end of the monitoring board.

2. The device for evaluating the physiological indexes of water-soluble fertilizer according to claim 1, characterized in that: The seed positioning structure (3) is a groove (31) for accommodating seeds, and the shape and size of the groove (31) are adjustable.

3. The device for evaluating the physiological indexes of water-soluble fertilizer according to claim 1, characterized in that: The angle formed by the plane where the monitoring plate (2) is located and the plane where the containing groove (1) is located is 90° to 45°.

4. The device for evaluating the physiological indexes of water-soluble fertilizer according to claim 1, characterized in that: The fixing structure (10) is a fixing clip.

5. The device for evaluating the physiological indexes of water-soluble fertilizer according to claim 1, characterized in that: It also includes a pH sensor (101), a temperature sensor (102), a humidity sensor (103), a light sensor (104) and a conductivity sensor (105).

6. The device for evaluating the physiological indexes of water-soluble fertilizer according to any one of claims 1 to 5, characterized in that: It also comprises an incubator (4) and a light source (5), wherein the light source (5) is arranged on the inner wall of the incubator (4).

7. The device for evaluating the physiological indexes of water-soluble fertilizer according to claim 6, characterized in that: The light source (5) is a full-band light source.

8. A method for evaluating physiological indicators of water-soluble fertilizers, characterized in that: The device for evaluating the physiological index of water-soluble fertilizer according to any one of claims 1 to 5 or 7 comprises the following steps: S1, placing a fertilizer liquid to be tested with a preset concentration in the containing tank (1); S2, placing the first capillary action medium (201) evenly on the light-transmitting plate (202), and wetting it with the fertilizer liquid to be tested of the preset concentration; S3, placing seeds that have been soaked in a fertilizer liquid of a preset concentration to be tested at equal intervals on the seed positioning structure (3); S4, covering the second capillary action medium (201) on the first capillary action medium (201) provided with the seed positioning structure (3) and the seeds, and wetting it again with the fertilizer liquid to be tested of the preset concentration, to obtain a monitoring plate to be tested; S5, fixing the monitoring board to be tested in the containing groove (1) using a fixing structure (10) so that the angle formed by the plane where the monitoring board (2) is located and the plane where the containing groove (1) is located is 90° to 45°; S6. Prepare several parallel samples and control samples by referring to the steps of S1-S5, culture the seeds, and give the physiological index evaluation results of the tested fertilizer according to the growth conditions of the seed roots and / or buds after 3-5 days.

9. The evaluation method according to claim 8, characterized in that: The seed positioning structure (3) is a groove (31) with adjustable shape and size, and is used to place seeds of different types and specifications.

10. The evaluation method according to claim 8, characterized in that: It also includes real-time acquisition of pH, temperature, humidity, light and conductivity values ​​in the culture process environment, and timely adjustments to ensure stable and consistent culture conditions.

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