CN203467298U - Testing device for studying plant root system growing state through simulation of soil local deep scarification - Google Patents
Testing device for studying plant root system growing state through simulation of soil local deep scarification Download PDFInfo
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- CN203467298U CN203467298U CN201320627600.1U CN201320627600U CN203467298U CN 203467298 U CN203467298 U CN 203467298U CN 201320627600 U CN201320627600 U CN 201320627600U CN 203467298 U CN203467298 U CN 203467298U
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Abstract
The utility model discloses a testing device for studying the plant root system growing state through simulation of soil local deep scarification. The testing device is composed of at least three layers of testing cylinders arranged in a vertical butt joint mode, the cross section of each testing cylinder is circular or polygonal or rectangular or square, and at least one arc or straight separation baffle with the height identical to that of the testing cylinders is fixed to the inner wall of the testing cylinder on the second layer. When the testing device for studying the plant root system growing state through simulation of local deep scarification of soil is used, according to the requirement for root system taking of studied plants, testing devices with appropriate standards and the appropriate number of layers are selected, and soil with different weights of a plowing layer, a soil plow sole, soil partial deep scarification and the like is placed in the testing cylinders and then placed in a large field. The testing device is used for studying the growth and the development of plant root systems of maize, sorghum and the like and has the advantages of being simple in structure, low in cost, convenient to operate, flexible in operation and the like. The shortages of laboratory simulation and a test under the large field natural conditions in the prior art are overcome, the operability of the plant root system study under the condition that the soil plow sole and soil local deep scarification is remarkably improved, and the reliability and the authenticity of a test result are remarkably improved.
Description
Technical field
The utility model relates to simulation part and breaks under the soil subsoiling condition of soil tillage pan, for the experimental rig of understanding, researching plant root grows state, be the experimental rig of the local subsoiling researching growth state of plant root system of a kind of simulated soil specifically, belong to agricultural research experimental rig.
Background technology
Break under the soil subsoiling condition of soil tillage pan science, effective research part, plant root growth is grown, define the mechanism of plant shoot and the symplastic growth of underground part root system, for better guiding agricultural production, promote that agriculture development is significant.
The formation of soil tillage pan is the result to the long-term unreasonable farming of soil, and the existence of tillage pan has seriously restricted root system of plant growing in soil, is one of most important soil structure factor of restriction agricultural production.At present, for soil tillage pan and local soil subsoiling (the application's abbreviation: the local subsoiling of the soil) research of plant root growth developmental condition under condition, mainly adopts in laboratory simulation and two kinds of modes of land for growing field crops natural conditions of breaking soil tillage pan.Under laboratory condition, owing to being difficult to the field conditions of simulation of plant growth, the experimental result obtaining is often difficult to react the truth of Field Plants root growth and development state; And under the natural conditions of land for growing field crops, the situation that plant root growth is grown is difficult to obtain, and effort, time-consuming, inefficiency.Owing to lacking rational experimental rig, the constraint of the condition that is put to the test, at present, for soil tillage pan and local breaking under the soil subsoiling condition of soil tillage pan, carry out the research of corresponding plant root growth developmental condition, be difficult to obtain accurate and reliable test data, and then limited the progress of this respect.
The utility model patent of the applicant No. 201120028531.3 " test cylinders of researching growth state of plant root system ", provide under a kind of soil conditions such as can simulating field soil topsoil or tillage pan, the grow device of state of researching plant root, but, but can not simulate simultaneously and study under two kinds of soil conditions of the local subsoiling of soil tillage pan and soil, the state that grows of root system of plant.
Summary of the invention
The purpose of this utility model is to overcome in laboratory simulation in the past and two kinds of situations of land for growing field crops natural conditions, the drawback of researching growth state of plant root system and deficiency, provide a kind of simple in structure, cost is low, easy to use, flexible operation, can simulate under the soil tillage pan and the local subsoiling condition of soil in field simultaneously, keep plant root growth to grow natural environment, improve the experimental rig of the local subsoiling researching growth state of plant root system of simulated soil of root system of plant result of study reliability and authenticity.
The technical scheme that realizes the utility model object is:
The experimental rig of the local subsoiling researching growth state of plant root system of this simulated soil, cross sectional shape by the docking up and down of at least three layers of identical shaped and size is rounded, polygon, rectangle or square test cylinder form, junction at the test cylinder of different layers is connected with ring, feature be on the inwall of upper several second layer test cylinders, be fixedly connected with vertical direction that arrange with at least one arc test cylinder equal height or straight shape separation baffles, the height 0.1-0.2 rice of every layer of test cylinder, cross-sectional area 0.03-0.3 square metre.
Ring can guarantee the sealing between upper and lower test cylinder, in order to make ring energy accurate positioning when connecting the test cylinder of different layers, simultaneously, use, convenient and strength-saving while moving test cylinder, at upper several second layer test cylinders and with the upper edge of lower floor's test cylinder, be fixedly connected with positioning retainer ring, both play positioning action, played again the effect of handle.
The experimental rig of the local subsoiling researching growth state of plant root system of this simulated soil is simple in structure, in order to guarantee root system of plant normal growth, described test cylinder, ring, positioning retainer ring and screw, nut or other accessory etc. that are fixedly connected with ring, all select the nonmetallic materials such as existing PVC plastics, lucite to make, and adopt conventional processes to make, easily implement.
During use, the specific requirement of getting root according to studied different plants, layering etc., several experimental rigs of selecting suitable specification and the number of plies are then respectively charged into field soil in the test cylinder of each layer, are made into simulation tillage pan earth pillar and the Subsoiling earth pillar of different unit weights.Generally: in ground floor test cylinder, packing the simulation land for growing field crops the superiors into is the soil of plow layer; In second layer test cylinder, a part of separating in separation baffles packs the earth pillar of simulation field soil tillage pan into, and what the other parts of separating in separation baffles packed that simulation part, land for growing field crops breaks soil tillage pan into is the soil of the local subsoiling of soil; In test cylinder below the second layer, pack the soil of simulating land for growing field crops lower floor into.After dress soil completes, each layer of test cylinder fitted together to formation experimental rig successively up and down.Each experimental rig is placed on respectively in the flat heatable adobe sleeping platform digging in advance, and according to field normal row distance and all experimental rigs of the large minispread of spacing in the rows, reclaimed soil, reclaimed soil is fully contacted with experimental rig outer wall, do not interspace, thereby build the plant growth environment under the natural conditions of real land for growing field crops, the plant that plantation will be studied in ground floor test cylinder afterwards.
After planting, according to the needs of test, at the different times of plant growth, the underground part root system of this plant is carried out to sample analysis.During sampling, first with spade, excavate experimental rig soil around, whole device is taken out from soil, then open ring, with cutter, along the junction cut-out soil of each layer of test cylinder and the root system between different layers, can sample respectively the root system of the different levels degree of depth.Due in second layer test cylinder, what the part that separation baffles is separated packed into is the soil of simulation field soil tillage pan, and what the other parts of separating in separation baffles packed into is the soil that the local subsoiling of soil tillage pan soil is broken in simulation land for growing field crops.Can be to the sampling separately respectively of the root system in different soils, the Different Effects that Quantitative Study soil tillage pan and the local soil subsoiling of breaking soil tillage pan are grown plant root growth.
The utility model can be used in research work that the plants such as corn, Chinese sorghum grow plant root growth under the condition of the local subsoiling of simulated soil tillage pan and soil, have simple in structure, cost is low, the advantage such as flexible to operation, obviously overcome the deficiency of laboratory simulation in the past and land for growing field crops natural condition test, significantly improved the operability of root system of plant research under the different conditions such as the local subsoiling of simulated soil tillage pan and soil, and the reliability of result of the test and authenticity, there is practicality and application value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of second layer test cylinder in the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
Fig. 4 is the use state generalized section of embodiment 2.
In figure: 0 corn, 01 maize root system, 1 test cylinder, 2 separation baffles, 3 rings, 4 positioning retainer rings.(be that drawing is clear, in Fig. 2,3, omit ring and positioning retainer ring)
Embodiment
Below in conjunction with accompanying drawing, with the embodiment providing, the utility model is further described.
Embodiment 1: with reference to Fig. 1, the experimental rig of the local subsoiling researching growth state of plant root system of this simulated soil, by three layers of rounded test cylinder 1 of cross sectional shape docking up and down, formed, junction at the test cylinder of different layers is connected with ring 3, upper edge at second and third layer of test cylinder is provided with positioning retainer ring 4, on the inwall of upper several second layer test cylinders, be fixedly connected with vertical direction that arrange with 1 straight shape separation baffles 2 test cylinder equal height.0.3 meter of the diameter of every layer of test cylinder, 0.15 meter of height, approximately 0.07 square metre of cross-sectional area.
Embodiment 2: with reference to Fig. 1,2, the experimental rig of the local subsoiling researching growth state of plant root system of this simulated soil outer just as embodiment 1, by three layers of rounded test cylinder 1 of cross sectional shape docking up and down, formed, junction at the test cylinder of different layers is connected with ring 3, in the upper edge of second and third layer of test cylinder, is provided with positioning retainer ring 4.Different is on the inwall of upper several second layer test cylinders, be fixedly connected with vertical direction that arrange with 2 arc separation baffles 2 test cylinder equal height, as shown in Figure 2.0.4 meter of the diameter of every layer of test cylinder, 0.15 meter of height, approximately 0.13 square metre of cross-sectional area.
Embodiment 3: with reference to Fig. 3, the experimental rig of the local subsoiling researching growth state of plant root system of this simulated soil, by three layers of cross sectional shape docking up and down, being foursquare test cylinder 1 forms, junction at the test cylinder of different layers is connected with ring, upper edge at second and third layer of test cylinder is provided with positioning retainer ring, on the inwall of upper several second layer test cylinders, be fixedly connected with vertical direction that arrange with 2 straight shape separation baffles 2 test cylinder equal height.0.4 meter of the length of side of every layer of test cylinder, 0.15 meter of height, 0.16 square metre of cross-sectional area.
After maize planting, according to the needs of test, at the different times of corn growth, the underground part root system of corn is carried out to sample analysis.During sampling, first with spade, excavate experimental rig soil around, whole device is taken out, then open ring, with cutter, along the junction cut-out soil of each layer of test cylinder and the root system between different layers, the root system of the different levels degree of depth is sampled respectively.Due in second layer test cylinder, what the mid portion that separation baffles is separated packed into is the soil of simulation field soil tillage pan, and what the other parts of separating in separation baffles packed into is the soil that the local subsoiling of soil tillage pan soil is broken in simulation land for growing field crops.Therefore, can be to the sampling separately respectively of the root system in different soils, the Different Effects that Quantitative Study soil tillage pan and the local soil subsoiling of breaking soil tillage pan are grown plant root growth.
The on probation demonstration through inside, experimental rig of the present utility model compared with prior art, can ensure that planting environment in each layer of test cylinder environment facies underground with field are consistent, particularly owing to being provided with separation baffles in second layer test cylinder, can be in second layer test cylinder, simulate respectively field soil tillage pan and break the soil of two kinds of different unit weights of the local subsoiling of soil tillage pan soil.Thereby can be in an experimental rig, two kinds of Different Effects that different soils is grown plant root growth such as Simultaneous Quantitative Analysis research soil tillage pan and the local soil subsoiling of breaking soil tillage pan.Reliability and the authenticity of result of study have been guaranteed, reduced the labour intensity of research work, experimental rig is simple in structure, easy to use, as required flexible combination, be repeatedly used, for improving the research level of root system of plant, provide a kind of good experimental rig, applied range, is subject to person on probation's favorable comment.
Claims (2)
1. the experimental rig of the local subsoiling researching growth state of plant root system of a simulated soil, cross sectional shape by the docking up and down of at least three layers of identical shaped and size is rounded, polygon, rectangle or square test cylinder form, junction at the test cylinder of different layers is connected with ring, it is characterized in that: on the inwall of upper several second layer test cylinders, be fixedly connected with vertical direction that arrange with at least one arc test cylinder equal height or straight shape separation baffles, the height 0.1-0.2 rice of every layer of test cylinder, cross-sectional area 0.03-0.3 square metre.
2. the experimental rig of the local subsoiling researching growth state of plant root system of simulated soil according to claim 1, is characterized in that: at upper several second layer test cylinders and with the upper edge of lower floor's test cylinder, be fixedly connected with positioning retainer ring.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960038A (en) * | 2014-05-29 | 2014-08-06 | 福建农林大学 | Test device and method for researching root competition strategy |
| CN104322248A (en) * | 2014-10-09 | 2015-02-04 | 吉林省农业科学院 | Layered positioning study method for plant root system growth and layered positioning device |
| CN104871792A (en) * | 2015-06-11 | 2015-09-02 | 东北农业大学 | Rod bank for testing plant root growth penetrating power |
| CN106841581A (en) * | 2017-02-26 | 2017-06-13 | 中铁二院工程集团有限责任公司 | Salty Soil Subgrade model test apparatus under different regime modes |
| CN109819818A (en) * | 2018-12-29 | 2019-05-31 | 北京市农林科学院 | Adversity-stressed Plant earth pillar casing and its application method and application |
| CN110122112A (en) * | 2019-06-10 | 2019-08-16 | 贵州师范大学 | A kind of Karst region model plant growth experimental rig and its test method |
| CN111903383A (en) * | 2020-08-19 | 2020-11-10 | 石河子大学 | Test device and method for researching root system competition strategy |
| CN114698483A (en) * | 2022-03-23 | 2022-07-05 | 福建主播农业科技有限公司 | Farming uses breeding device |
-
2013
- 2013-09-29 CN CN201320627600.1U patent/CN203467298U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960038A (en) * | 2014-05-29 | 2014-08-06 | 福建农林大学 | Test device and method for researching root competition strategy |
| CN104322248A (en) * | 2014-10-09 | 2015-02-04 | 吉林省农业科学院 | Layered positioning study method for plant root system growth and layered positioning device |
| CN104871792A (en) * | 2015-06-11 | 2015-09-02 | 东北农业大学 | Rod bank for testing plant root growth penetrating power |
| CN106841581A (en) * | 2017-02-26 | 2017-06-13 | 中铁二院工程集团有限责任公司 | Salty Soil Subgrade model test apparatus under different regime modes |
| CN109819818A (en) * | 2018-12-29 | 2019-05-31 | 北京市农林科学院 | Adversity-stressed Plant earth pillar casing and its application method and application |
| CN110122112A (en) * | 2019-06-10 | 2019-08-16 | 贵州师范大学 | A kind of Karst region model plant growth experimental rig and its test method |
| CN111903383A (en) * | 2020-08-19 | 2020-11-10 | 石河子大学 | Test device and method for researching root system competition strategy |
| CN114698483A (en) * | 2022-03-23 | 2022-07-05 | 福建主播农业科技有限公司 | Farming uses breeding device |
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