CN202043471U - Micro-plot experiment simulator - Google Patents
Micro-plot experiment simulator Download PDFInfo
- Publication number
- CN202043471U CN202043471U CN2011200862626U CN201120086262U CN202043471U CN 202043471 U CN202043471 U CN 202043471U CN 2011200862626 U CN2011200862626 U CN 2011200862626U CN 201120086262 U CN201120086262 U CN 201120086262U CN 202043471 U CN202043471 U CN 202043471U
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- China
- Prior art keywords
- earth pillar
- micro
- plot experiment
- soil
- experiment simulator
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- Fertilizing (AREA)
Abstract
The utility model relates to a micro-plot experiment simulator, which comprises an earth pillar and a round tube/cylinder filled with the same. A soil layer as high as the earth pillar is filled outside the tubular/cylindrical wall of the earth pillar. The micro-plot experiment simulator is characterized in that three to ten drain holes are evenly distributed on the tubular/cylindrical wall of the earth pillar at three peripheral positions respectively corresponding to a topsoil layer upper interface, a topsoil layer middle and a topsoil layer lower interface. The perforated semi-open system of the micro-plot experiment simulator can solve the problems that logging is easy to occur in micro-plots and nitrogen absorption, migration and transformation are inconsistent to actual conditions of a field, and nitrogen fertilizer utilization rate and soil retention rate more accurately approximate to actual conditions of the field can be obtained.
Description
Technical field
The utility model relates to a kind of simulation experiment system, is specifically related to a kind of micro-plot experiment analogue means.
Background technology
Biological field trial is the most basic research method of plant nutrition subject.Because it is the biologic test that carries out under the soil, weather conditions at the field nature, approaches working condition most, can reflect more objectively that agricultural is actual, thereby the result of its gained more has actual and direct directive significance to producing.Field trial has different modes such as micro-plot experiment, small plot experiment and land for growing field crops comparative trial.The researcher can select according to the purpose of research.Obtain by crop absorption of amount of application of nitrogen fertilizer deduction and pedo relict on the microcell of field as nitrogenous fertilizer total losses general using 15N tracer technique.This microcell is generally the drum of the no end of periphery seal, and diameter does not wait to one or two meter at tens centimeters, and the degree of depth is many at 40～60cm.Area is big more, and the result that obtains of institute is more near field reality, but that institute spends also is just high more.In any case, ubiquitous problem is, airtight tube wall has often been blocked nitrogen outside lateral transfer (oozing as runoff and side) process in soil, makes total losses on the low side.And meet with during dry farming and can cause inner bucket water to divide a large amount of accumulations under the heavy rain situation, form damage or crop failure caused by waterlogging.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of micro-plot experiment analogue means of utilization rate of nitrogen fertilizer and pedo relict rate more accurately that obtains.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of micro-plot experiment analogue means, comprise earth pillar and load the pipe/tube of this earth pillar, be filled with the soil horizon that height and earth pillar height are complementary in the pipe of described earth pillar/barrel outside, on corresponding to described earth pillar soil plough horizon in the middle of interface, the soil plough horizon, under the soil plough horizon, evenly lay 3～10 osculums respectively on three place's circumference of the pipe/barrel at interface.
Described earth pillar diameter is 30～200cm, high 40～200cm.
The aperture of described osculum is 3～8cm.
The upper edge of described pipe/tube exceeds interface 2～5cm on the described earth pillar soil plough horizon.
The utlity model has actively useful effect:
South wheat monsoon rain water is more for the north, in the past because the environment of sealing, retains a large amount of rainwater in the wheat growth season bucket, can cause wheat growth to be obstructed, influence plant to the absorbing of nitrogen, and the migration of nitrogen and conversion, thereby have influence on obtaining of science data; This reality adopts the semi-open system of novel holing design then can solve easily waterlog in the microcell stain and the not corresponding to problem of Nitrogen Absorption, migration conversion and field actual conditions, and is obtaining utilization rate of nitrogen fertilizer and the pedo relict rate that approaches the field actual conditions more accurately.
Description of drawings
Fig. 1 is a kind of structural representation of micro-plot experiment analogue means.
Among the figure, 1 is cylinder, and 2 is last osculum, and 3 is earth pillar, and 4 is middle osculum, and 5 are following osculum.
Embodiment
Further set forth the present invention below in conjunction with specific embodiment.
1 one kinds of micro-plot experiment analogue means of embodiment, referring to Fig. 1, comprise earth pillar 3 and load the cylinder 1 of this earth pillar 3, be filled with the soil horizon that height and earth pillar 3 highly are complementary in the cylindrical wall outside that holds described earth pillar 3, earth pillar 3 diameters are 100cm, cylinder 1 height overall 103cm, beat osculum at its 3cm place, 13cm place and 23cm place respectively from top to bottom, the aperture is 3cm, four every layer, is evenly distributed on tube wall; It is just parallel with upper soll layer that osculum 2 is gone up at four at 3cm place, can guarantee that like this inner bucket water branch situation is with extraneous consistent; Four following osculums 5 of four middle osculums 4 in 13cm place and 23cm place can guarantee in the topsoil moisture bucket and the outer side direction of bucket is moved smoothly.Each plant growth season only need be gathered the 15N content of crop field top and soil layer 0～100cm, can obtain more reliable crop absorption, pedo relict and total losses data.
Though, above with a general description of the specific embodiments the utility model having been done detailed description, on the utility model basis, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (4)
1. micro-plot experiment analogue means, comprise earth pillar and load the pipe/tube of this earth pillar, be filled with the soil horizon that height and earth pillar height are complementary in the pipe of described earth pillar/barrel outside, it is characterized in that, on corresponding to described earth pillar soil plough horizon in the middle of interface, the soil plough horizon, under the soil plough horizon, evenly lay 3～10 osculums respectively on three place's circumference of the pipe/barrel at interface.
2. according to the described micro-plot experiment analogue means of claim 1, it is characterized in that described earth pillar diameter is 30～200cm, high 40～200cm.
3. according to the described micro-plot experiment analogue means of claim 1, it is characterized in that the aperture of described osculum is 3～8cm.
4. according to the described micro-plot experiment analogue means of claim 1, it is characterized in that the upper edge of described pipe/tube exceeds interface 2～5cm on the described earth pillar soil plough horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200862626U CN202043471U (en) | 2011-03-29 | 2011-03-29 | Micro-plot experiment simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200862626U CN202043471U (en) | 2011-03-29 | 2011-03-29 | Micro-plot experiment simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202043471U true CN202043471U (en) | 2011-11-23 |
Family
ID=44983802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200862626U Expired - Lifetime CN202043471U (en) | 2011-03-29 | 2011-03-29 | Micro-plot experiment simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202043471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771301A (en) * | 2012-08-21 | 2012-11-14 | 贵州省园艺研究所 | Transplanting method of tomato seedlings |
| CN103157424A (en) * | 2011-12-12 | 2013-06-19 | 同济大学 | Water environment simulation reactor based on water-soil interface |
-
2011
- 2011-03-29 CN CN2011200862626U patent/CN202043471U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157424A (en) * | 2011-12-12 | 2013-06-19 | 同济大学 | Water environment simulation reactor based on water-soil interface |
| CN103157424B (en) * | 2011-12-12 | 2014-10-22 | 同济大学 | Water environment simulation reactor based on water-soil interface |
| CN102771301A (en) * | 2012-08-21 | 2012-11-14 | 贵州省园艺研究所 | Transplanting method of tomato seedlings |
| CN102771301B (en) * | 2012-08-21 | 2014-07-16 | 贵州省园艺研究所 | Transplanting method of tomato seedlings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
|
| CX01 | Expiry of patent term |