CN115553190B - Rice field structure capable of remarkably reducing rice field greenhouse gas emission - Google Patents
Rice field structure capable of remarkably reducing rice field greenhouse gas emission Download PDFInfo
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- CN115553190B CN115553190B CN202211467846.7A CN202211467846A CN115553190B CN 115553190 B CN115553190 B CN 115553190B CN 202211467846 A CN202211467846 A CN 202211467846A CN 115553190 B CN115553190 B CN 115553190B
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- 241000209094 Oryza Species 0.000 title claims abstract description 118
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 118
- 235000009566 rice Nutrition 0.000 title claims abstract description 118
- 239000005431 greenhouse gas Substances 0.000 title claims abstract description 37
- 239000002689 soil Substances 0.000 claims abstract description 79
- 239000003337 fertilizer Substances 0.000 claims abstract description 70
- 239000012466 permeate Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 3
- 230000013278 single fertilization Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 2
- 239000000618 nitrogen fertilizer Substances 0.000 abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 17
- 238000010521 absorption reaction Methods 0.000 abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 241000894006 Bacteria Species 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 26
- 235000015097 nutrients Nutrition 0.000 description 14
- 238000010276 construction Methods 0.000 description 10
- 239000003895 organic fertilizer Substances 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 230000035699 permeability Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 5
- 230000004720 fertilization Effects 0.000 description 5
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 235000021049 nutrient content Nutrition 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 235000021048 nutrient requirements Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
Abstract
The application relates to the technical field of rice planting, in particular to a rice field structure capable of remarkably reducing greenhouse gas emission of a rice field, which comprises ridge stems and furrows, wherein rice is planted on the ridge stems, a plurality of vertical channels are arranged on the ridge stems, the areas arranged by the channels correspond to the planting areas of the rice, and when fertilizer is applied to the rice, the fertilizer can permeate into soil in the ridge stems along the channels. The rice field structure can improve the absorption and utilization rate of the rice root system to the nitrogen fertilizer, and reduce the loss of nitrogen and the emission of N 2 O in soil; improving the ventilation property of the plough layer soil of the paddy field, avoiding forming an extreme anaerobic environment, destroying the proper soil ecological environment condition for the growth of methane bacteria, and obviously reducing the CH 4 discharge amount in the paddy field; and is beneficial to the yield increase of rice.
Description
Technical Field
The invention relates to the technical field of rice planting, in particular to a rice field structure capable of remarkably reducing rice field greenhouse gas emission.
Background
Rice is one of three main grain crops in China, and is used as a global main grain crop, and the planting area of the rice reaches 1.61 hundred million hectares. The rice has a long cultivation history in China, the total yield accounts for 44% of the total yield of grains in China, the sowing area and the total yield are all at the first place of the domestic grain crops, about 60% of population takes rice as main food, and the rice has a vital role in the grain production in China.
At present, in the rice planting process, a base fertilizer needs to be fertilized once before sowing or transplanting, once or twice topdressing is carried out according to different nutrient requirements of rice in different growth periods when the rice grows to a certain extent, the topdressing usually takes the nitrogen fertilizer as a main broadcasting fertilizer, and the nitrogen fertilizer is broadcasted in a rice field for rice absorption and utilization, and the nitrogen fertilizer on the surface layer of the broadcasting fertilizer is easy to decompose and run off. The rice growth mainly absorbs the soil nutrient content through the root system, the absorption and utilization of the soil nutrient by the rice root system are in close relation with the position of the soil where the nutrient is located, the nutrient in some areas is far away from the rice root system and is difficult to be absorbed and utilized by plants, and as the fertilizer nutrient in each place in the soil in the broadcasting process is balanced, the rice root system is difficult to cover to most of the soil containing the nutrient, the absorption and utilization of the nitrogen fertilizer by the rice are also unfavorable, and a large amount of nitrogen fertilizer residues in the rice field are easily caused, so that more substrates are provided for the generation of the soil N 2 O, and further more greenhouse gas N 2 O is discharged by the rice field. Meanwhile, under the traditional flood irrigation cultivation mode, the paddy field soil is in a flooded anaerobic state for a long time, thereby being beneficial to propagation of methane oxidizing bacteria and greatly increasing the discharge amount of CH 4 in the paddy field. IPCC report 5 that the concentration of room gas such as methane (CH 4) and nitrous oxide (N 2 O) has risen to the highest level since history, agricultural source greenhouse gas emissions are about 12% of the total greenhouse gas emissions produced by global artificial activities (IPCC, 2018), 50-65% of CH 4 emissions in the atmosphere are produced by artificial activities, paddy CH 4 years emissions are about 20-40 Tg yr -1, about 10% -20% of global annual emissions (Stocker et al, 2013), 80% of artificial N 2 O are from agricultural production, where farmland soil N 2 O emissions have increased from 0.3-1.0 Tg N yr −1 in 1850 to 3.9-5.3 Tg N yr −1 (Xu et al, 2017) in 2010.
Based on the above problems, there is a need to design a paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields, so as to improve the absorption and utilization rate of fertilizer and reduce the emission of greenhouse gases.
Disclosure of Invention
The invention aims at: aiming at the defects existing in the rice planting process at present, the rice field structure capable of remarkably reducing the greenhouse gas emission of the rice field is provided.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a can show paddy field structure that reduces paddy field greenhouse gas emission, includes ridge stalk and furrow, the rice is planted on the ridge stalk, just be provided with a plurality of vertical passageways on the ridge stalk, the regional correspondence of planting area of passageway setting and rice, when applying fertilizer to the rice, fertilizer can follow the passageway is permeated in the soil in the ridge stalk.
As a preferential technical scheme of the application, the channels are matched with a plurality of pipelines, the pipelines are used for being inserted into the ridge stems and forming the channels, and when fertilizer is applied, the fertilizer flows into the soil of the ridge stems through the pipelines.
As a preferential technical scheme of the application, a plurality of pipelines form a pipeline group, the width of the pipeline group is matched with the width of the ridge stems, the pipeline group also comprises a connecting rod, and the connecting rod connects the pipelines on the pipeline group into a whole.
As a preferential technical scheme of the application, before fertilizing the rice, the pipeline is inserted into the ridge stems; and the pipeline is pulled out of the ridge stems within one week to two weeks after the single fertilization is finished.
As a preferential technical scheme of the application, a plurality of through holes are arranged on the side wall of the pipeline, and one end of the pipeline, which is used for being inserted into the ground, is in a plugging shape.
As a preferred technical scheme of the application, after the pipeline is inserted into the ridge stems, the diameter of the pipeline is gradually reduced in the vertical downward direction.
As a preferential technical scheme of the application, a plurality of annular bulges are arranged on the outer side of the pipeline, the bulges are arranged around the central axis of the pipeline, and the bulges are distributed along the length direction of the pipeline.
As another preferred technical scheme of the application, a plurality of strip-shaped gaps are formed in the pipeline, the length direction of each gap is in the same direction as the length direction of the pipeline, the lengths of each gap are matched with the lengths of the pipelines, the gaps are distributed along the circumferential direction of the pipeline, one end of each pipeline, which is inserted into each ridge stalk, is an insertion end, the insertion ends are blocked, a plurality of blades are further arranged on the pipeline, the blades are matched with the gaps, one ends of the blades are connected with the pipeline, when the pipeline is inserted into each ridge stalk, the blades can be pushed by soil in each ridge stalk to bend and deform towards the central axis of the pipeline, and when acting force on the blades is removed, the blades can recover deformation.
As a preferred technical scheme of the application, one end of the blade, which is used for being connected with the pipeline, is one end of the blade, which is close to the insertion end.
As another preferred embodiment of the present application, the end of the blade for connecting to the pipe is the end of the blade away from the insertion end.
Compared with the prior art, the invention has the beneficial effects that:
In the scheme of the application, paddy rice is planted on the ridge stems, a plurality of vertical channels are arranged on the ridge stems, the areas where the channels are arranged correspond to the planting areas of the paddy rice, when fertilizer is applied to the paddy rice, the fertilizer can permeate into the soil in the ridge stems along the channels, so that fertilizer nutrients contained in the soil close to the channels in the ridge stems are higher, in the paddy rice growing process, the root system of the paddy rice is easy to grow to the soil with higher fertilizer nutrient content, the root system of the paddy rice grows downwards, and simultaneously, the root system of the paddy rice also grows towards the channels, so that the root system of the paddy rice is easy to spread in the soil near the channels along with the growth of the paddy rice, and the root system of the paddy rice is easier to absorb and utilize by the root system of the paddy rice in the channels when fertilizer is applied to the paddy rice, so that the utilization rate of the fertilizer can be improved, and the absorption and utilization rate of the nitrogenous fertilizer by the root system of the paddy rice can be improved, the nitrogenous fertilizer residue in a paddy rice field can be reduced, the substrate for generating N 2 O can be remarkably reduced, and the emission of N 2 O can be remarkably reduced.
Meanwhile, when the organic fertilizer is applied in the growth stage of the rice, the liquid organic fertilizer is applied to enable the organic fertilizer to permeate into the soil from the channel, on one hand, the root system of the rice grows towards the channel, and on the other hand, the arrangement of the channel can improve the air permeability of the soil in the area where the channel is located, so that the soil containing the organic fertilizer can be prevented from forming an extremely anaerobic environment, the air permeability of the soil containing the organic fertilizer is improved, and the environmental condition suitable for methane bacteria growth is damaged, so that the discharge amount of CH 4 in the rice field is obviously reduced.
The arrangement of the channels is beneficial to the centralized absorption of nutrients by the root system of the rice, is also beneficial to the centralized fertilization of the rice, can obviously reduce the emission of greenhouse gases, and can also improve the absorption and utilization rate of the rice to the nutrients, thereby being beneficial to the yield increase of the rice.
Furthermore, in the application, the channel is formed by inserting the pipeline into the ridge stems, so that the channel is formed on the ridge stems conveniently, simultaneously, the shrinkage of the channel can be avoided in the period that the pipeline is inserted into the ridge stems and is not pulled out, the stability of the formed channel can be maintained, and meanwhile, the pipeline is arranged, so that the root system of rice can conveniently grow around the pipeline, and the stability of the formed channel can be improved by surrounding the root system growing around the pipeline; meanwhile, when the pipeline in the inserted ridge peduncles is pulled out, the root system growing around the pipeline can reduce the rate of channel shrinkage, and in the process, as the pipeline is not blocked, the channel provides more growth space for the growth of the root system, the growth of the rice root system is facilitated, and meanwhile, the growth of the rice root system towards the channel can be guided, so that the absorption capacity of the rice root system to nutrients can be improved, the utilization rate of fertilizer can be further improved, the emission of greenhouse gas can be further reduced, the rate of channel shrinkage can be further reduced, and the stability of the channel can be further improved.
In another scheme of the application, a plurality of strip-shaped gaps are formed in the pipeline, the length direction of the gaps is the same as the length direction of the pipeline, the gaps are distributed along the circumferential direction of the pipeline, when the pipeline is inserted into the ridge stems, the soil in the ridge stems can push the blades to enable the blades to bend and deform towards the central axis of the pipeline, in the bending deformation process of the blades, the gaps corresponding to the blades can be gradually exposed, and the gaps are gradually filled with the soil, in the process of inserting the pipeline into the ridge stems, the insertion end pushes the soil below the pipeline, so that the acting force of the blades on the soil in the process is small, the blades can shield the gaps in the process, and thus the filling of the pipeline from the gaps can be prevented in the process of inserting the pipeline into the ridge stems, and further, the guarantee is provided for the effect of follow-up fertilizers and air entering the pipeline on the soil; meanwhile, after the pipeline is inserted into the ridge peduncles to the preset position, the acting force of the soil on the blades is increased, so that under the acting force of the soil, the blades are gradually bent and deformed towards the central axis of the pipeline, and the exposed gaps are gradually filled with the soil.
Further, one end of each blade, which is used for being connected with a pipeline, is one end, which is close to an insertion end, of each blade, so that when the blades are extruded by soil in the ridge stems and bent, the channels are tapered under the action of the pipelines and the blades, and the cross-sectional area of the tapered channels formed is gradually reduced in the vertical downward direction, so that on the basis that the rice root system grows around the pipelines, the grown rice root system can maintain the tapered channels after the pipelines are pulled out of the ridge stems, in the continuous growth process of the rice root system, the lower parts of the channels are more easily filled by the rice root system due to the small space below the formed channels, and the areas, which are farther away from the ground, are more easily formed in terms of anaerobic environment in the rice field, meanwhile, the lower parts of the formed channels are more easily filled by the root system, and the cross-sectional area of the areas, which are positioned above the channels, are larger in the vertical downward direction, simultaneously, the shrinkage rate of the channels is slower under the action of the growing rice root system, and therefore, the air permeability of the rice root system can be remarkably reduced in the greenhouse, and the greenhouse can be prevented from being further from growing in the ridge stems, and the air ventilation is remarkably reduced, and the air ventilation is remarkably, and the methane is prevented from being exhausted from the area of the ridge roots, and the greenhouse is further being grown in the ridge, and the area is more than the area is more prone to the growth in the growth of the area, and the area after the channel is formed.
In another scheme of the application, one end of the blade, which is used for being connected with the pipeline, is one end of the blade, which is far away from the insertion end, so that when the blade is extruded by soil in the ridge stems and bent, the cross-sectional area of an area above the formed channel can be reduced under the action of the pipeline and the blade, the formed channel is in a long bottle-shaped structure with a closing upper part, after fertilizer is applied, the fertilizer enters the channel and acts on the soil near the pipeline, in the process of absorbing the fertilizer by the soil and the root system of rice, the formed channel structure can reduce the volatilization of the fertilizer, and in the rainfall period after fertilizer application, and when the pipeline is in the ridge stems, the close-up area on the channel located above can be gradually reduced, the close-up area on the channel located above can play a blocking role, the rainfall can be blocked, and then in rainfall after fertilization, the condition that fertilizer in the channel flows out of the channel to the surface of the ridge stems can be effectively reduced, and then the utilization rate of the fertilizer can be improved, meanwhile, volatilization of the fertilizer on the surface of the ridge stems can be reduced, ammonia volatilization can be effectively reduced when Shi Yezhuang nitrogenous fertilizer is carried out, and then the situation that haze weather is caused by NH3 in the atmosphere after oxidation and acid reaction can be reduced, and the situation that NH3 is settled and returned to the land and soil can be reduced, and then emission of greenhouse gases can be reduced, and greenhouse effect is slowed down.
Drawings
FIG. 1 is a schematic view showing the structure of one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 2 is a schematic view showing the structure of one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 3 is a schematic view showing the structure of pipes in one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 4 is a schematic view showing the structure of pipes in one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 5 is a schematic view showing the structure of pipes in one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 6 is a schematic cross-sectional view of a pipeline in one embodiment of a paddy field construction capable of significantly reducing greenhouse gas emissions from the paddy field according to the present application;
FIG. 7 is a schematic cross-sectional view of a pipeline in one embodiment of a paddy field construction capable of significantly reducing greenhouse gas emissions from the paddy field according to the present application;
FIG. 8 is a schematic view showing the structure of pipes in one embodiment of a paddy field construction capable of remarkably reducing the emission of greenhouse gases in the paddy field according to the present application;
FIG. 9 is a schematic cross-sectional view of a pipeline in one embodiment of a paddy field construction capable of significantly reducing greenhouse gas emissions from the paddy field according to the present application;
FIG. 10 is a schematic cross-sectional view of a pipeline in one embodiment of a paddy field construction capable of significantly reducing greenhouse gas emissions from the paddy field according to the present application;
The figures indicate: 1-ridge stalk, 2-furrow, 3-channel, 4-pipeline, 5-pipeline group, 6-connecting rod, 7-through hole, 8-bulge, 9-gap, 10-insertion end and 11-blade.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, under the condition of no conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Embodiment one: as shown in reference to figures 1-10,
The paddy field structure that this embodiment provided can show reduction paddy field greenhouse gas emission, including ridge stalk 1 and furrow 2, the rice is planted on the ridge stalk 1, just be provided with a plurality of vertical passageway 3 on the ridge stalk 1, the region that passageway 3 set up corresponds with the planting area of rice, when applying fertilizer to the rice, the fertilizer can follow passageway 3 permeates to in the soil in the ridge stalk 1.
According to the application, rice is planted on a ridge stalk 1, a plurality of vertical channels 3 are arranged on the ridge stalk 1, the areas where the channels 3 are arranged correspond to the planting areas of the rice, when fertilizer is applied to the rice, the fertilizer can permeate into the soil in the ridge stalk 1 along the channels 3, so that fertilizer nutrients contained in the soil close to the channels 3 in the ridge stalk 1 are higher, in the rice growth process, the root system of the rice is easy to grow to the soil with higher fertilizer nutrient content, the root system of the rice grows downwards, and simultaneously, the root system of the rice also grows towards the channels 3, so that the root system of the rice is easy to spread in the soil near the channels 3 along with the growth of the rice, and when fertilizer is applied to the rice, the fertilizer flows into the channels 3, the root system of the rice is easier to absorb and utilize, so that the fertilizer utilization rate can be improved, and then the fertilizer application operation can be performed, when the nitrogen fertilizer is applied, the absorption and utilization rate of the root system of the rice is improved, so that the nitrogen fertilizer residues in the rice field can be reduced, the nitrogen fertilizer residues in the nitrogen fertilizer 2O are reduced, the emission of N2O can be remarkably reduced, and the nitrogen fertilizer is particularly, and the nitrogen fertilizer can be mixed with the nitrogen fertilizer can be formed when the nitrogen fertilizer is applied;
Meanwhile, when organic fertilizer is applied in the growth stage of rice, liquid organic fertilizer is applied so that the organic fertilizer permeates into soil from the channel 3, on one hand, the root system of the rice grows towards the channel 3, and on the other hand, the arrangement of the channel 3 can improve the air permeability of the soil in the area where the channel 3 is located, so that the soil containing the organic fertilizer can be prevented from forming an extremely anaerobic environment, the air permeability of the soil containing the organic fertilizer is improved, and the environmental condition suitable for methane bacteria growth can be damaged, so that the emission of CH4 in a rice field is obviously reduced;
And the arrangement of the channel 3 is beneficial to the centralized suction and cultivation of the root system of the rice, is also beneficial to the centralized fertilization of the rice, can obviously reduce the emission of greenhouse gases, and can also improve the absorption and utilization rate of the rice to nutrients, thereby being beneficial to the yield increase of the rice.
As a preferred technical scheme of the application, the channels 3 are matched with a plurality of pipelines 4, the pipelines 4 are used for being inserted into the ridge stems 1 to form the channels 3, and when fertilizer is applied, the fertilizer flows into the soil of the ridge stems 1 through the pipelines 4.
Further, in the application, the channel 3 is formed by inserting the pipeline 4 into the ridge stalk 1, so that the channel 3 is formed on the ridge stalk 1 conveniently, meanwhile, the shrinkage of the channel 3 can be avoided in the period that the pipeline 4 is inserted into the ridge stalk 1 and is not pulled out, the stability of the formed channel 3 can be maintained, meanwhile, the pipeline 4 is arranged, the root system of rice can conveniently grow around the pipeline 4, and thus, the stability of the formed channel 3 can be improved by the root system growing around the pipeline 4; meanwhile, when the pipeline 4 in the inserted ridge stalk 1 is pulled out, the root system growing around the pipeline 4 can reduce the shrinkage rate of the channel 3, and in the process, as the pipeline 4 is not blocked, the channel 3 provides more growth space for the growth of the root system, is beneficial to the growth of the rice root system, and can guide the growth of the rice root system towards the channel 3, so that the absorption capacity of the rice root system to nutrients can be improved, the utilization rate of fertilizer can be further improved, the emission of greenhouse gases can be further reduced, the shrinkage rate of the channel 3 can be further reduced, and the stability of the channel 3 can be further improved.
As a preferred technical scheme of the application, a plurality of pipelines 4 form a pipeline group 5, the width of the pipeline group 5 is matched with the width of the ridge stalk 1, the pipeline group 5 further comprises a connecting rod 6, and the connecting rod 6 connects the pipelines 4 on the pipeline group 5 into a whole.
According to the application, the pipelines 4 on the pipeline group 5 are connected into a whole through the connecting rod 6 by arranging the pipeline group 5, so that a plurality of pipelines 4 are simultaneously inserted into the ridge stems 1, the efficiency of inserting the pipelines 4 into the ridge stems 1 and pulling out the pipelines from the ridge stems 1 can be improved, and the labor cost of rice planting is further reduced.
As a preferred technical scheme of the application, before fertilizing the rice, the pipeline 4 is inserted into the ridge stalk 1; and the pipeline 4 is pulled out of the ridge stems 1 within one week to two weeks after the single fertilization is finished.
Further, before fertilizing the rice, the pipeline 4 is inserted into the ridge stalk 1 so as to maintain the shape of the channel 3, specifically, four fertilizing stages are included in the rice planting process, specifically, base fertilizer application, tillering fertilizer application, ear fertilizer application and Shi Lifei, when the base fertilizer is applied, the pipeline 4 is inserted into the ridge stalk 1 until the channel 3 is formed, at this time, the base fertilizer is in the soil near the channel 3, when the pipeline 4 is in the period of the ridge stalk 1, the rice root system grows in the soil near the pipeline 4, within one week to two weeks after the base fertilizer application, after the pipeline 4 is pulled out of the ridge stalk 1, the strength of the channel 3 can be improved along with the growth of the rice root system, the shrinkage rate of the channel 3 is delayed, when the pipeline 4 is inserted into the ridge stalk 1 again during the tillering process, the contracted channel 3 can be expanded to reach the same size as the channel 3 of the previous fertilizing stage, so that the pipeline 4 can be inserted and pulled out according to the number of times of fertilization in the whole planting process.
Embodiment two: as can be seen in figures 1-4,
On the basis of the first technical scheme of the embodiment, further, a plurality of through holes 7 are formed in the side wall of the pipeline 4, and one end, used for being inserted into the ground, of the pipeline 4 is in a plugging shape.
The side wall of the pipeline 4 is provided with a plurality of through holes 7, one end of the pipeline 4, which is used for being inserted into the ground, is in a plugging shape, and after the pipeline 4 is inserted into the ridge stalk 1, one end of the pipeline 4, which is not inserted into the ridge stalk 1, is in an open shape when fertilizing materials, and one end of the pipeline 4, which is in a plugging shape, is convenient for extruding and pushing soil when the pipeline 4 is inserted into the ground, meanwhile, fertilizer flowing into the pipeline 4 is convenient for flowing out from the through holes 7 on the side wall of the pipeline 4, fertilizer is convenient for penetrating into the soil near the side wall of the pipeline 4, and absorption of rice root systems is facilitated.
As a preferred embodiment of the present application, after the pipe 4 is inserted into the ridge stalk 1, the diameter of the pipe 4 is gradually reduced in a vertically downward direction.
Further, after the pipe 4 is inserted into the ridge stalk 1, the diameter of the pipe 4 is gradually reduced in the vertical downward direction, so that the resistance of the pipe 4 when the pipe 4 is inserted into the ridge stalk 1 can be reduced, and the pipe 4 can be conveniently inserted.
As a preferred technical scheme of the application, a plurality of annular protrusions 8 are arranged on the outer side of the pipeline 4, the protrusions 8 are arranged around the central axis of the pipeline 4, and the protrusions 8 are distributed along the length direction of the pipeline 4.
The outside of the pipeline 4 is provided with a plurality of annular bulges 8, the bulges 8 are arranged around the central axis of the pipeline 4, the bulges 8 are distributed along the length direction of the pipeline 4, so that in the process of inserting the pipeline 4 into the ridge stalk 1, the bulges 8 vertically move downwards, the bulges 8 push the soil below the bulges, a space is reserved near the through holes 7 above the bulges 8, after the pipeline 4 is inserted into the ridge stalk 1, the reserved space is gradually reduced under the movement of the soil along with the passage of time, and the process occurs in the fertilization stage, so that fertilizer flows into the reserved space of the pipeline 4 from the through holes 7 and then permeates into the soil, the speed and the range of the fertilizer which permeates into the soil near the side wall of the pipeline 4 can be further improved, and the formed reserved space can enable air to enter the reserved space through the pipeline 4, so that the oxygen content of the soil can be further improved, the soil with the improved oxygen content is rich in nutrients, the absorption of the root system to the nutrients in the soil is not only facilitated, the residual oxygen content of greenhouse gases is reduced, and meanwhile, the oxygen content of the greenhouse gases produced by the greenhouse gases is improved, and the methane bacteria CH 2 can be effectively reduced, and the methane emission of the greenhouse gases is effectively reduced.
Embodiment III: as can be seen in figures 5-7,
On the basis of the first technical scheme of the embodiment, further, a plurality of strip-shaped gaps 9 are formed in the pipeline 4, the length direction of the gaps 9 is the same as the length direction of the pipeline 4, the lengths of the gaps 9 are matched with the length direction of the pipeline 4, a plurality of gaps 9 are circumferentially distributed along the pipeline 4, one end of the pipeline 4, which is inserted into the ridge 1, is an insertion end 10, the insertion end 10 is plugged, a plurality of blades 11 are further arranged on the pipeline 4, the blades 11 are matched with the gaps 9, one end of each blade 11 is connected with the pipeline 4, and when the pipeline 4 is inserted into the ridge 1, the blades 11 can be pushed by soil in the ridge 1 to enable the blades 11 to bend and deform towards the central axis of the pipeline 4, and when the acting force on the blades 11 is removed, the blades 11 can recover deformation.
In the application, a plurality of strip-shaped gaps 9 are arranged on a pipeline 4, the length direction of the gaps 9 is the same as the length direction of the pipeline 4, the gaps 9 are distributed along the circumferential direction of the pipeline 4, when the pipeline 4 is inserted into a ridge stalk 1, soil in the ridge stalk 1 can push blades 11 to enable the blades 11 to bend and deform towards the central axis of the pipeline 4, in the bending deformation process of the blades 11, the gaps 9 corresponding to the blades 11 can be gradually exposed, and the gaps 9 are gradually filled with soil, in the process of inserting the pipeline 4 into the ridge stalk 1, the insertion end 10 pushes the soil below the pipeline 4, so that the acting force of the soil borne by the blades 11 is small in the process, the blades 11 can shield the gaps 9 in the process, and thus the blades 4 can be prevented from being blocked by the soil from the gaps 9 in the process of inserting the pipeline 4 into the ridge stalk 1, and further ensuring that the follow-up fertilizer and air enter the pipeline 4 act on the soil; meanwhile, after the pipeline 4 is inserted into the ridge stems 1 to the preset position, the acting force of the soil on the blades 11 is gradually increased, so that under the acting force of the soil, the acting force is F, the blades 11 are gradually bent and deformed towards the central axis of the pipeline 4, and the exposed gaps 9 are gradually filled with the soil, so that when fertilizer is applied subsequently, the fertilizer enters the pipeline 4, the fertilizer directly acts on the soil filled with the gaps 9, the area of the soil directly contacted with the fertilizer in the pipeline 4 can be enlarged, the speed and the range of the fertilizer penetrating into the soil near the side wall of the pipeline 4 are improved, the absorption of the fertilizer by rice root systems is facilitated, the nitrogen fertilizer residue in the soil can be reduced when the nitrogen fertilizer is applied, and the emission of greenhouse gas is further reduced.
Further, in the present application, the pipe 4 and the blades 11 on the pipe 4 may be made of resin, and non-degradable materials may be selected, so that the pipe 4 and the blades 11 may be repeatedly used for a long period of time, and the pipe 4 may maintain its original shape after being extended into the soil, and the blades 11 may be bent and deformed.
As a preferred embodiment of the present application, the end of the blade 11 for connecting to the pipe 4 is the end of the blade 11 near the insertion end 10.
Further, one end on the blade 11, which is used for being connected with the pipeline 4, is the end on the blade 11, which is close to the insertion end 10, so that when the blade 11 is extruded by the soil in the ridge stalk 1 and the blade 11 is bent, the channel 3 is tapered under the action of the pipeline 4 and the blade 11, and the cross-sectional area of the tapered channel 3 formed is gradually reduced in the vertical downward direction, so that on the basis that the rice root system grows around the pipeline 4, the grown rice root system can maintain the tapered channel 3 after the pipeline 4 is pulled out from the ridge stalk 1, and in the continuous growth process of the rice root system, the lower part of the channel 3 is more easily filled by the rice root system due to the fact that the lower part is farther away from the ground, and the area farther away from the ground is more easily formed into an anaerobic environment in the aspect of the rice field, however, in the application, the lower part of the formed channel 3 is easier to be filled by the root system, and the cross-sectional area of the upper root system is larger on the channel 3, and simultaneously, the air permeability of the channel 3 is more slowly reduced in the aspect of the channel 1 is further, and the air permeability of the channel 4 is further reduced, and the air is further remarkably reduced, and the air permeability of the channel 4 can be prevented from being further in the area of the ridge stalk 1 is further reduced.
Embodiment four: as shown in figures 8-10 of the drawings,
The difference between this embodiment and the third embodiment is that: the end of the blade 11 for connection to the pipe 4 is the end of the blade 11 remote from the insertion end 10.
According to the application, one end of each blade 11, which is used for being connected with a pipeline 4, is one end of each blade 11 far away from an insertion end 10, so that when the blades 11 are extruded by soil in a ridge stem 1 and the blades 11 are bent, under the action of the pipeline 4 and the blades 11, the cross-sectional area of an area above the formed channel 3 is reduced, the formed channel 3 is in a long bottle-shaped structure with an upper closing opening, after fertilizer is applied, the fertilizer enters the channel 3 and acts on soil near the pipeline 4, in the process of absorbing the fertilizer by the soil and the root system of rice, the formed channel 3 structure can reduce volatilization of the fertilizer, and in the rainfall period after fertilizer application, and when the pipeline 4 is positioned in the ridge 1, the closing opening area above the channel 3 can be gradually reduced, meanwhile, the closing opening area above the channel 3 can play a blocking role, further in the rainfall after fertilizer application, the condition that the fertilizer flows out of the channel 3 to the surface of the ridge 1 can be effectively reduced, further, the utilization rate of the fertilizer can be improved, the evaporation rate of the fertilizer can be reduced, the ammonia can be reduced, the evaporation rate of the nitrogen fertilizer can be reduced, the nitrogen can be reduced in the surface of the greenhouse can be greatly oxidized and the nitrogen can be reduced, and the environmental pollution can be reduced, and the nitrogen can be reduced, and the environmental pollution and the nitrogen can be reduced.
The above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the invention are intended to be included in the scope of the appended claims.
Claims (5)
1. A paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields, which is characterized in that: the method comprises ridge stems and furrows, wherein rice is planted on the ridge stems, a plurality of vertical channels are arranged on the ridge stems, the areas of the channels correspond to the planting areas of the rice, and when fertilizer is applied to the rice, the fertilizer can permeate into soil in the ridge stems along the channels;
The channels are matched with a plurality of pipelines, the pipelines are used for being inserted into the ridge stems and forming the channels, and when fertilizer is applied, the fertilizer flows into the soil of the ridge stems through the pipelines;
Be provided with a plurality of banding clearances on the pipeline, the length direction in space with the length direction syntropy of pipeline, the length in space with the length looks adaptation of pipeline, a plurality of the space is followed the circumference of pipeline is arranged, insert on the pipeline the one end of ridge stalk is the insertion end, the insertion end is shutoff, just still be provided with a plurality of blades on the pipeline, the blade with space looks adaptation, the one end of blade with the pipeline links to each other, and when the pipeline inserts the ridge stalk, soil in the ridge stalk can push away the blade so that the blade towards the central axis bending deformation of pipeline, and when the effort of blade is cancelled, the blade can resume deformation.
2. The paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields according to claim 1, wherein: the pipelines form a pipeline group, the width of the pipeline group is matched with the width of the ridge stems, the pipeline group further comprises a connecting rod, and the connecting rod connects the pipelines on the pipeline group into a whole.
3. The paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields according to claim 2, wherein: before fertilizing the rice, inserting the pipeline into the ridge stems; and the pipeline is pulled out of the ridge stems within one week to two weeks after the single fertilization is finished.
4. The paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields according to claim 1, wherein: one end of the blade, which is used for being connected with the pipeline, is one end of the blade, which is close to the insertion end.
5. The paddy field structure capable of remarkably reducing the emission of greenhouse gases in paddy fields according to claim 1, wherein: the end of the blade, which is used for being connected with the pipeline, is the end of the blade, which is far away from the insertion end.
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