CN220105039U - Be used for simulating field vegetation, leaching solution to collect and ammonia trapping apparatus - Google Patents
Be used for simulating field vegetation, leaching solution to collect and ammonia trapping apparatus Download PDFInfo
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- CN220105039U CN220105039U CN202321645845.7U CN202321645845U CN220105039U CN 220105039 U CN220105039 U CN 220105039U CN 202321645845 U CN202321645845 U CN 202321645845U CN 220105039 U CN220105039 U CN 220105039U
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000002386 leaching Methods 0.000 title claims abstract description 64
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 35
- 239000002689 soil Substances 0.000 claims abstract description 112
- 239000000243 solution Substances 0.000 claims abstract description 53
- 239000012267 brine Substances 0.000 claims abstract description 29
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 27
- 150000003839 salts Chemical class 0.000 claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 21
- 230000008635 plant growth Effects 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 3
- 239000004677 Nylon Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 230000012010 growth Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000003673 groundwater Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 240000008042 Zea mays Species 0.000 description 10
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 10
- 235000005822 corn Nutrition 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 230000003204 osmotic effect Effects 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 230000003203 everyday effect Effects 0.000 description 4
- 230000004720 fertilization Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000618 nitrogen fertilizer Substances 0.000 description 4
- KCRZDTROFIOPBP-UHFFFAOYSA-N phosphono 2,3-dihydroxypropanoate Chemical compound OCC(O)C(=O)OP(O)(O)=O KCRZDTROFIOPBP-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VRZJGENLTNRAIG-UHFFFAOYSA-N 4-[4-(dimethylamino)phenyl]iminonaphthalen-1-one Chemical compound C1=CC(N(C)C)=CC=C1N=C1C2=CC=CC=C2C(=O)C=C1 VRZJGENLTNRAIG-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000482268 Zea mays subsp. mays Species 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
- 241001057636 Dracaena deremensis Species 0.000 description 1
- XYZZKVRWGOWVGO-UHFFFAOYSA-N Glycerol-phosphate Chemical compound OP(O)(O)=O.OCC(O)CO XYZZKVRWGOWVGO-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008636 plant growth process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model discloses a device for simulating plant growth, leaching solution collection and ammonia capture, which comprises an ammonia capture component, a soil containing container, a funnel, a receiving bottle, a salt-reflecting component and a stand, wherein the ammonia capture component comprises a hollow shell and sponge filled in the ammonia capture component, the lower end of the shell is connected with the upper end of the soil containing container, the lower opening of the soil containing container is vertically connected with the inlet of the funnel, the liquid outlet of the funnel is connected with the receiving bottle, one side of the soil containing container is connected with the salt-reflecting component through a salt water conduit, the salt-reflecting component comprises a brine pond and a ventilation pipe, and the stand is used for supporting the whole device. The salt-reflecting component can simulate the salt of the saline-alkali soil groundwater so as to simulate the growth of the real field plants of the saline-alkali soil, and simultaneously, the ammonia gas can be captured and the leaching solution can be collected and detected.
Description
Technical Field
The utility model relates to the technical field of soil and botanics, in particular to a device for simulating field plant growth, leaching solution collection and ammonia capture.
Background
In recent years, with the production and popularization of chemical fertilizers, nutrient components (such as N, P, K and the like) in soil are lost along with the downward migration of water below a plant root system active layer, so that nutrient loss of farmlands is caused, the utilization efficiency of nutrients is reduced, and meanwhile, most of nutrient components leached out of soil bodies can be recycled in water bodies, so that the drinking safety of underground water is threatened. The nitrogenous fertilizer is used as a common fertilizer and is soil volatile NH 3 The most important forming substances are that the soil ammonia volatilizes, which is a main way of nitrogen loss of nitrogen fertilizer in the agriculture and forestry production process, and the soil volatile ammonia is accurately collected, so that the loss of the nitrogen fertilizer is mastered, the application effect of the nitrogen fertilizer is mastered further, in the plant growth process, the plant absorbs water from the soil by means of osmotic pressure of cells, and especially the plant growth in saline-alkali soil is simulated, and the concentration and the osmotic pressure of the saline-alkali soil are increased due to the fact that the amount of soluble salt in the saline-alkali soil is more, so that the saline-alkali soil can generate the phenomenon of salt rejection. Therefore, the collection and detection of the leaching solution, and the capture and monitoring of the volatile ammonia gas are necessary.
The patent 202021913775.5 discloses a device for simulating field plant growth, leaching solution collection and gas collection, which comprises a fixing frame, a gas collection device, a soil column device and a leaching solution collection bottle, wherein a sponge block which is connected with the lower end of a water collection tank and is full of phosphoric acid glycerol is used for collecting ammonia volatilization, so that the field in-situ situation is simulated, stones and soil with different compaction degrees are filled in the soil column, and the field plant growth situation is simulated. Because the deep salt of the saline-alkali soil is dissolved, the condition of salt reaction of underground water exists, and the soil in the soil column in the device only carries out soil simulation from the soil compacted to different degrees and cannot simulate the salt reaction phenomenon of the saline-alkali soil, the device is not suitable for simulating the field plant growth of the saline-alkali soil.
Therefore, when simulating field plant growth, leaching solution collection and ammonia capture, the salt rejection phenomenon of saline-alkali soil needs to be simulated so that the soil condition in the test process is closer to reality, and therefore, the collection of leaching solution and the capture of volatile ammonia are performed, and the method has practical significance for analyzing the utilization condition of nutrients such as chemical fertilizers.
Disclosure of Invention
The utility model aims to provide a device for simulating field plant growth, leaching solution collection and ammonia gas capture. The device utilizes anti-salt subassembly simulation saline-alkali soil to carry out field vegetation and cultivates, utilizes ammonia to catch subassembly, soil to hold container, funnel and accept the bottle and drenches the collection of solution, and experimental reproducibility is good, and the seal of device is good, is difficult for receiving external condition interference, has guaranteed the accuracy of test data, has still practiced thrift the cost of labor, does not influence vegetation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a device for simulating field plant growth, leaching solution collection and ammonia capture, which comprises an ammonia capture assembly, a soil containing container, a funnel and a receiving bottle which are sequentially communicated from top to bottom, wherein the soil containing container is connected with a salt reflecting assembly;
the anti-salt subassembly includes vent pipe and brine pond, be equipped with the bleeder vent on the vent pipe, the intussuseption of vent pipe is filled with the second sponge, and the vent pipe is placed in the brine pond, holds brine in the brine pond, the degree of depth of brine is greater than the perpendicular distance of the ventilative hole of lower extreme from the brine pond bottom, and the vent pipe is connected to soil through the brine pipe and holds the container.
Preferably, the ammonia gas capturing component comprises a hollow shell and at least two layers of first sponges filled in the shell, the shell is of a semicircular ring structure, the outer diameter of the semicircular ring structure is 25cm, the inner diameter of the semicircular ring structure is 20cm, the height of the semicircular ring structure is 15cm, the upper end of the first sponges on the uppermost layer is flush with the upper end of the shell, and the lower end of the first sponges on the lowermost layer is 4-6cm away from the lower end of the shell.
Preferably, the soil containing container is of a cylindrical structure, the inner diameter of the cylindrical structure is 25cm, the height of the cylindrical structure is 80cm, the soil containing container is sequentially provided with a soil layer, a gauze layer and a nylon layer from top to bottom, saline-alkali soil is contained in the soil layer, the thickness of the gauze layer is 4-6cm, and the thickness of the nylon layer is 1mm.
Preferably, the vertical distance between the lower end of the second sponge and the bottom of the brine tank is less than or equal to the vertical distance between the ventilation hole at the lowest end and the bottom of the brine tank.
Preferably, the device for simulating field plant growth, leaching solution collection and ammonia capture further comprises a stand, the stand sequentially comprises a first pipe rack, a second pipe rack, a third pipe rack and a fourth pipe rack from top to bottom, a plurality of first soil containing container fixing holes are formed in the first pipe rack, second soil containing container fixing holes are formed in the positions, corresponding to the first soil containing container fixing holes, of the second pipe rack and the first pipe rack, funnel opening fixing holes are formed in the positions, corresponding to the second soil containing container fixing holes, of the third pipe rack and the second pipe rack, of the fourth pipe rack, a receiving bottle fixing position is formed in the positions, corresponding to the funnel opening fixing holes, of the third pipe rack, of the same group of soil containing containers, the same funnel and the receiving bottle are vertically connected, and are fixed through the pipe racks respectively.
Further preferably, the vertical distance between the first pipe rack and the second pipe rack is 35cm, the vertical distance between the second pipe rack and the third pipe rack is 35cm, and the vertical distance between the third pipe rack and the fourth pipe rack is 30cm.
Adding 50mL of phosphoric acid into 40mL of glycerol, uniformly mixing, and then, fixing the volume to 1000mL to obtain a phosphoglycerate solution, uniformly immersing a first sponge in an ammonia capture assembly into 6.6mL of phosphoglycerate solution, placing the first sponge in the uppermost layer in a shell with a semi-annular structure, wherein the first sponge in the uppermost layer is used for preventing external gas pollution, and the first sponge in the lowermost layer is used for absorbing ammonia volatilized from soil.
The first sponge at the lowest layer is replaced every morning in fixed time every 6 days after fertilization, then the first sponge at the lower layer is replaced every three days, the first sponge at the upper layer is replaced every day, and when the detection result is not obviously changed compared with a non-fertilization treatment group, the replacement of the first sponge is not needed. The ammonia gas capturing component continuously detects and captures ammonia gas for 35 days, the communication position of the ammonia gas capturing component at the upper end of the soil containing container is unchanged in the whole ammonia gas detecting and capturing process, only the sponge is replaced every day, the replaced first sponge at the lowest layer is placed in 300mL of 1mol/L KCl solution for leaching, and the ammonium nitrogen content in the obtained leaching solution is measured by adopting an indophenol blue colorimetric method.
The soil layer in the soil holding container holds saline-alkali soil, and the gauze layer comprises a plurality of layers of gauze for filter and drench solution, the lower extreme on gauze layer is wrapped up by the nylon layer, and the nylon layer comprises at least one deck nylon net for prevent that gauze from spilling, and select for use nylon material to compare in the wire netting, be difficult for rust, do not influence the element content of drenching solution. The leaching solution in the soil containing container is collected in the receiving bottle through the funnel. After saline-alkali soil is filled into a soil container, a first leaching test is carried out, the leaching water consumption is 1.5 times of the field water-holding capacity, the leaching test is carried out continuously in the corn growing process, four leaching processes are carried out respectively in the corn seedling stage, the large bell mouth stage, the flowering stage and the mature stage, the water consumption for each leaching process is 1 time of the field water-holding capacity, the corresponding leaching quantity is ensured to be adopted by all treatment groups, the time of occurrence of leaching solution in the soil container and the ending time of the leaching solution are recorded, wherein the ending time of the leaching solution takes no leaching solution as a judging standard, the leaching solution flows into a receiving bottle through a funnel for collection, the leaching liquid volume in the receiving bottle is measured, the leaching rate is calculated, and meanwhile, the leaching solution in the receiving bottle is taken to measure the total salt content, the total nitrogen content, the eight-major ion content and the ammonium nitrogen content of the leaching solution, and the desalting rate of the saline-alkali soil in the soil container under irrigation is calculated.
Brine in the brine pond is immersed in the second sponge through the permeable holes, and the brine in the second sponge moves upwards to the soil layer by utilizing the osmotic pressure difference, so that the soil layer is periodically supplemented with the brine. The frame stand is used for supporting the whole device, the first pipe frame and the second pipe frame are used for fixing the soil containing container, the third pipe frame is used for fixing the funnel, and the fourth pipe frame is used for placing the bearing bottle.
The utility model has the beneficial effects that:
according to the utility model, the growth process of corn in a real field environment is simulated, the leaching solution and volatile ammonia gas in the corn growth process are collected, various indexes of soil in the corn growth process, such as total salt content, total nitrogen content, eight-major ion content, ammonium nitrogen content and the like, can be known at any time, the labor cost can be saved, meanwhile, the test reproducibility is good, the device tightness is good, the device is not easily interfered by external conditions, and the accuracy of test data is ensured. The utility model adopts the anti-salt component, the ammonia capturing component, the soil containing container, the funnel and the receiving bottle, can collect the leaching solution while capturing ammonia, simulate groundwater to maintain the anti-salt mode, can simultaneously detect soil indexes such as soil temperature and humidity and plant indexes such as leaf area and chlorophyll of corn plants, and does not influence the corn growth.
The anti-salt assembly and the soil containing container can simulate the real field environment, especially the salty soil, simulate the anti-salt of the underground water level, ensure that the test conditions are consistent with the real environment, and simultaneously, the salt water automatically enters the coating through the salt water guide pipe along the sponge by utilizing the osmotic pressure difference, so that the effect of periodically supplementing the salt water is realized, the manual water addition is not needed, and the labor is saved.
The ammonia capturing component is directly connected with the soil layer, can directly capture volatile ammonia on the soil surface, improves the ammonia capturing accuracy, can achieve the recovery rate of 99.5%, adopts the shell of semicircle ring structure, has simple structure, occupies small growth area of corn, and is extremely small in influence on corn growth, and simultaneously, in the ammonia capturing process, only needs to replace the sponge inside the shell, and easy operation can effectively avoid the interference of air by the upper sponge simultaneously, and the accuracy of the test is ensured.
The leaching assembly is formed by the soil containing container, the funnel and the receiving bottle, the nylon net is adopted to replace the wire netting, rust of the wire in the use process is avoided, components of leaching solution are affected, leaching solution of the soil is conveniently collected, and materials are simple and easy to obtain.
Drawings
Fig. 1: schematic diagrams of devices for simulating field corn growth, leaching solution collection and ammonia capture;
fig. 2: an ammonia capture assembly schematic;
fig. 3: a schematic drawing of a stand;
the figure shows: the ammonia gas collecting device comprises a 1-ammonia gas collecting component, a 11-shell, a 12-first sponge, a 2-soil container, a 21-gauze layer, a 22-nylon layer, a 23-soil layer, a 3-salt reflecting component, a 31-brine pond, a 32-air permeability pipe, 33-air holes, 34-second sponge, a 35-brine guide pipe, a 4-receiving bottle, a 5-stand, a 51-first pipe rack, a 52-second pipe rack, a 53-third pipe rack, a 54-fourth pipe rack, a 55-first soil container fixing hole, a 56-second soil container fixing hole, a 57-funnel fixing hole, a 58-receiving bottle fixing position and a 6-funnel.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
In order to enable those skilled in the art to more clearly understand the technical scheme of the present utility model, the technical scheme of the present utility model will be described in detail with reference to specific embodiments.
The test materials used in the examples of the present utility model are all conventional in the art and are commercially available.
Examples
As shown in fig. 1, the device for simulating field corn growth, leaching solution collection and ammonia capture comprises an ammonia capture component 1, a soil containing container 2, a funnel 6 and a receiving bottle 4 which are sequentially communicated from top to bottom, wherein the soil containing container 2 is connected with a salt reflecting component 3. The anti-salt subassembly 2 includes vent tube 32 and salt pond 31, be equipped with bleeder vent 33 on the vent tube 32, the intussuseption of vent tube 32 is filled with second sponge 34, and vent tube 32 is placed in salt pond 31, holds salt water in the salt pond 31, the degree of depth of salt water is greater than the perpendicular distance of bottom bleeder vent 33 from salt pond 31 bottom, and vent tube 32 is connected to soil through salt water pipe 35 and holds container 2, and the perpendicular distance of second sponge 34 lower extreme from salt pond 31 bottom is less than or equal to the perpendicular distance of bottom bleeder vent 33 from salt pond 31 bottom. The ammonia gas capturing component 1 comprises a hollow shell 11 and at least two layers of first sponges 12 filled in the shell 11, wherein the shell 11 is of a semicircular ring structure, the outer diameter of the semicircular ring structure is 25cm, the inner diameter of the semicircular ring structure is 20cm, the height of the semicircular ring structure is 15cm, the upper end of the uppermost layer of first sponges 12 is flush with the upper end of the shell 11, and the lower end of the lowermost layer of first sponges 12 is 4-6cm away from the lower end of the shell 11. The soil containing container 2 is of a cylindrical structure, the inner diameter of the cylindrical structure is 25cm, the height of the cylindrical structure is 80cm, the soil containing container 2 is sequentially provided with a soil layer 23, a gauze layer 21 and a nylon layer 22 from top to bottom, saline-alkali soil is contained in the soil layer 23, the thickness of the gauze layer 21 is 4-6cm, and the thickness of the nylon layer 22 is 1mm. The device for simulating field plant growth, leaching solution collection and ammonia capture further comprises a stand 5, the stand 5 sequentially comprises a first pipe frame 51, a second pipe frame 52, a third pipe frame 53 and a fourth pipe frame 54 from top to bottom, a plurality of first soil containing container fixing holes 55 are formed in the first pipe frame 51, a second soil containing container fixing hole 56 is formed in the position, corresponding to the first soil containing container fixing holes 55, of the second pipe frame 52 and the first pipe frame 51, a funnel opening fixing hole 57 is formed in the position, corresponding to the second soil containing container fixing holes 56, of the third pipe frame 53 and the second pipe frame 52, of the fourth pipe frame 54, a bottle receiving fixing position 58 is formed in the position, corresponding to the funnel opening fixing holes 57, of the third pipe frame 53, of the same group of soil containing containers 2, the funnel 6 and the bottle receiving 4 are vertically connected and are respectively fixed through the pipe frames, the vertical distance between the first pipe frame 51 and the second pipe frame 52 is 35cm, the vertical distance between the second pipe frame 52 and the third pipe frame 53 is 35cm, the vertical distance between the third pipe frame 53 and the third pipe frame 53 is 30cm, the funnel fixing position is used for fixing the third pipe frame 53 and the funnel fixing position, and the fourth pipe frame 5 are used for fixing the funnel fixing positions, and the funnel fixing positions are used for fixing the first pipe frame 5 and the fourth pipe frame 53 and the fourth pipe frame 5 and the funnel fixing device.
Adding 50mL of phosphoric acid into 40mL of glycerol, uniformly mixing, and then, fixing the volume to 1000mL to obtain a phosphoglycerate solution, uniformly immersing the first sponge 12 in the ammonia capture assembly 1 in 6.6mL of phosphoglycerate solution, placing the first sponge 12 in the uppermost layer in the semi-annular shell 11, wherein the first sponge 12 in the lowermost layer is used for preventing external gas pollution, and the first sponge 12 in the lowermost layer is used for absorbing ammonia volatilized from soil. The first sponge 12 at the lowest layer is replaced every morning for a fixed time in the first 6 days after fertilization, then the first sponge 12 at the lower layer is replaced every three days, the first sponge 12 at the upper layer is replaced every day, and when the detection result has no obvious change position compared with the non-fertilization treatment group, the replacement of the first sponge 12 is not needed. The ammonia gas capturing component 1 continuously detects and captures ammonia gas for 35 days, the communication position of the ammonia gas capturing component 1 at the upper end of the soil containing container 2 is unchanged in the whole ammonia gas detecting and capturing process, only the first sponge 12 is replaced every day, the replaced first sponge 12 at the lowest layer is placed in 300mL of 1mol/L KCl solution for leaching, and the ammonium nitrogen content in the obtained leaching solution is measured by adopting an indophenol blue colorimetric method.
The soil layer 23 in the soil containing container 2 contains saline-alkali soil, the saline-alkali soil is taken from a test base of the agricultural common public of the Fu of Liuzhen, changyi, shandong province, the gauze layer 21 is composed of a plurality of layers of gauze for filtering the leaching solution, the lower end of the gauze layer 21 is wrapped by a nylon layer 22, the nylon layer 22 is composed of at least one layer of nylon net for preventing the gauze from leaking out, and compared with an iron wire net, the nylon gauze is difficult to rust, and the element content of the leaching solution is not influenced. The leaching solution in the soil holding container 2 is collected through the funnel 6 into the receiving bottle 4. After saline-alkali soil is filled into a soil container 2, a first leaching test is carried out, the leaching water consumption is 1.5 times of the field water-holding capacity, the leaching test is continuously carried out in the corn growing process, four leaching processes are respectively carried out in the corn seedling stage, the large bell mouth stage, the flowering stage and the mature stage, the water consumption for each leaching process is 1 time of the field water-holding capacity, the corresponding leaching quantity is ensured to be adopted by all treatment groups, the time of leaching solution in the soil container and the ending time of leaching solution are recorded, wherein the ending time of leaching solution takes the leaching solution which does not appear as a judging standard, the leaching solution flows into a receiving bottle through a funnel 6 for collection, the leaching liquid volume in the receiving bottle 4 is measured, the leaching rate is calculated, meanwhile, the leaching solution in the receiving bottle 4 is taken to measure the total salt content, the total nitrogen content, the eight-ion content and the ammonium nitrogen content, and the desalting rate of the saline-alkali soil in the soil container 2 by irrigation is calculated.
Brine in the brine pond 31 is immersed in the second sponge 34 through the water permeable holes 33, and the brine in the second sponge 34 moves upwards to the soil layer 23 by utilizing the osmotic pressure difference, so that the soil layer 23 is periodically supplemented with brine.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The device for simulating the growth of plants in the field, collecting leaching solution and capturing ammonia gas is characterized by comprising an ammonia gas capturing assembly, a soil containing container, a funnel and a receiving bottle which are sequentially communicated from top to bottom, wherein the soil containing container is also connected with a salt reflecting assembly; the anti-salt subassembly includes vent pipe and brine pond, be equipped with the bleeder vent on the vent pipe, the intussuseption of vent pipe is filled with the second sponge, and the vent pipe is placed in the brine pond, holds brine in the brine pond, the degree of depth of brine is greater than the perpendicular distance of the ventilative hole of lower extreme from the brine pond bottom, and the vent pipe is connected to soil through the brine pipe and holds the container.
2. The device for simulating plant growth in the field, leaching solution collection and ammonia trapping mechanism according to claim 1, wherein the ammonia trapping assembly comprises a hollow shell and at least two layers of first sponges filled in the shell, the shell is of a semicircular ring structure, the outer diameter of the semicircular ring structure is 25cm, the inner diameter is 20cm, the height is 15cm, the upper end of the uppermost layer of first sponges is flush with the upper end of the shell, and the lower end of the lowermost layer of first sponges is 4-6cm away from the lower end of the shell.
3. The device for simulating field plant growth, leaching solution collection and ammonia gas capture according to claim 1, wherein the soil containing container is of a cylindrical structure, the inner diameter of the cylindrical structure is 25cm, the height of the cylindrical structure is 80cm, the soil containing container is sequentially provided with a soil layer, a gauze layer and a nylon layer from top to bottom, saline-alkali soil is contained in the soil layer, the thickness of the gauze layer is 4-6cm, and the thickness of the nylon layer is 1mm.
4. The device for simulating plant growth, leaching solution collection and ammonia capture of claim 1, wherein the vertical distance from the lower end of the second sponge to the bottom of the brine pond is less than or equal to the vertical distance from the lowest ventilation hole to the bottom of the brine pond.
5. The device for simulating field plant growth, leaching solution collection and ammonia capture according to claim 1, further comprising a stand, wherein the stand sequentially comprises a first pipe rack, a second pipe rack, a third pipe rack and a fourth pipe rack from top to bottom, a plurality of first soil containing container fixing holes are formed in the first pipe rack, a second soil containing container fixing hole is formed in a position, corresponding to the first soil containing container fixing holes, of the second pipe rack, a funnel opening fixing hole is formed in a position, corresponding to the second soil containing container fixing holes, of the third pipe rack, of the second pipe rack, a receiving bottle fixing position is formed in a position, corresponding to the funnel opening fixing holes, of the fourth pipe rack, corresponding to the funnel and the receiving bottle, and the same group of soil containing containers, the funnel and the receiving bottle are vertically connected and are fixed through the pipe racks respectively.
6. The apparatus for simulating plant growth, leaching solution collection and ammonia gas trapping according to claim 5, wherein a vertical distance between the first rack and the second rack is 35cm, a vertical distance between the second rack and the third rack is 35cm, and a vertical distance between the third rack and the fourth rack is 30cm.
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| CN202321645845.7U CN220105039U (en) | 2023-06-27 | 2023-06-27 | Be used for simulating field vegetation, leaching solution to collect and ammonia trapping apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321645845.7U CN220105039U (en) | 2023-06-27 | 2023-06-27 | Be used for simulating field vegetation, leaching solution to collect and ammonia trapping apparatus |
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