CN113575013A - Medium-and-severe saline-alkali soil treatment method - Google Patents
Medium-and-severe saline-alkali soil treatment method Download PDFInfo
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Abstract
The invention discloses a method for treating moderate and severe saline-alkali soil, which comprises the following steps: s1, predicting a waterproof interlayer; s2, scribing; s3, ploughing the land; s4, preparing a purifying solution; s5, conveying the purified liquid; s6, embedding a pipe; s7, fertilizing; s8, planting crops, wherein the method for treating the medium and heavy saline-alkali soil achieves the effect of treating the saline-alkali soil by fully mixing desulfurized gypsum with a water source, then sequentially arranging water grooves with the depth of 5-10cm in a certain interval around the fertilizer, filling water into the water grooves, controlling the distance between the water grooves and the crops to be 10-15cm, and reclaiming the soil to complete the planting work of the crops.
Description
Technical Field
The invention relates to a treatment method, in particular to a treatment method for moderately severe saline-alkali soil, belonging to the technical field of saline-alkali soil treatment application.
Background
The saline-alkali soil is a kind of salt accumulation, which means that the normal growth of crops is influenced by the salt contained in the soil, according to incomplete statistics of various literatures, the area of the saline-alkali soil all over the world is 9.5438 hundred million hectares, wherein 9913 million hectares in China exist, the formation of alkaline earth and alkalized soil in China is mostly related to the accumulation of carbonate in the soil, so that the alkalization degree is generally high, and plants in serious saline-alkali earth soil areas can hardly survive.
The invention with the patent publication number of CN104115586A discloses a medium and severe saline-alkali soil treatment method, which comprises the steps of firstly arranging a vacuum drainage system and a grouting system for a saline-alkali soil treatment area; then, grouting the slurry into a position with a certain depth in the saline-alkali soil treatment area, and solidifying the grouted slurry to form a hard layer; digging a hair ditch with a certain depth around the saline-alkali soil treatment area; then, respectively burying drainage pipelines for draining water in the saline-alkali soil treatment area around the top of the hard layer; then pouring concrete into the hair ditch, and forming an impermeable layer after curing; finally, irrigating water to the saline-alkali soil treatment area for salt leaching; the advantage sets up the hard layer in saline and alkaline land improvement region to begin to extend to the hard layer from the top layer of soil and set up the barrier, and bury drainage pipe underground between the top of hard layer and the bottom of barrier, make only need carry out fresh water and wash the salt, just can reduce the salt content in the saline and alkaline land improvement region, it is effectual not only to remove salt alkali, removes salt alkali thoroughly moreover, the phenomenon of returning the salt can not appear.
The existing moderate and severe saline-alkali soil treatment method and the moderate and severe saline-alkali soil treatment method disclosed in patent publication No. CN104115586A only achieve the effect of primary treatment in the use process, but cannot perform secondary land reclamation on the soil in the crop planting process, so that the crops can fully absorb water and nutrients, and the crops can grow more vigorously.
Disclosure of Invention
The invention aims to provide a method for treating moderate and severe saline-alkali soil, which solves the problem that the existing treatment method only achieves the effect of primary treatment but cannot perform secondary land reclamation in the crop planting process, so that crops can fully absorb water and nutrients, and the crops can grow more prosperous.
The purpose of the invention can be realized by the following technical scheme: a medium and severe saline-alkali soil treatment method comprises the following steps:
s1, predicting a waterproof interlayer: excavating heavy clay outside the soil, recording the excavated depth, draining water in the excavated area, standing for a period of time, and detecting the depth of the waterproof interlayer by using an external measuring marker post;
s2, scribing: measuring and distinguishing the land to be treated, controlling the size of a scribing interval within a specified interval, and paving white powder in the area to be scribed;
s3, land ploughing: ploughing the marking area by adopting an external high-horsepower locomotive, wherein the ploughing depth is the depth obtained by measurement, and breaking plough layer hardening by combining deep scarification;
s4, preparing a purifying solution: according to the land to be purified, preparing proper amount of water and desulfurized gypsum, wherein the ratio of desulfurized gypsum to water is set to be 1: 15, mixing the purified liquid by adopting an external mixing device to completely dissolve the gypsum in a water source;
s5, conveying the purified liquid: adopting an external pumping device to sequentially convey the purifying liquid into a pre-ploughed excavation region, enabling the purifying liquid to penetrate through the whole saline-alkali soil, standing for a period of time, and then adopting the external pumping device to pump out a water source;
s6, pre-buried pipe: at least one drainage pipeline for discharging water in the saline-alkali soil treatment area is embedded around the hard layer respectively, so that the water is prevented from accumulating;
s7, fertilizing treatment: preparing inorganic fertilizer and mineral fertilizer, wherein the mineral fertilizer is weathered coal, mixing the applied fertilizer, and sequentially sprinkling the fertilizer in a ploughing area to finish the fertilization work;
s8, crop planting: ploughing the fertilizer after being poured, arranging a water tank with the depth of 5-10cm in a certain interval around the fertilizer, filling water into the water tank, controlling the distance between the water tank and crops to be 10-15cm, loosening soil in a road section within a linear distance, enabling the crops to be well absorbed, and reclaiming the land to finish the planting work of the crops.
Preferably, the digging depth is controlled within 30-45cm for different alkalization degrees of the land in the step S1, and the waterproof standing time is controlled within 1-2 h.
Preferably, the interval size of the scribe lines in the step S2 is set within the interval of 1.5-2 m.
Preferably, the rotation speed of the mixing device in the step S4 is set within the interval of 150-250r/min, and the mixing time duration is controlled within 2-3 h.
Preferably, the depth of the purified liquid in the step S5 is controlled within 3-5cm, and the standing time is controlled within 3-4 h.
Preferably, in step S6, the drain pipe is semicircular, and a half area of the drain pipe is open.
Preferably, the rotation speed of the mixing device in the step S7 is set within 100-150r/min, and the mixing time period is controlled within 10-15 min.
Preferably, the fertilizer surrounding interval in the step S8 is set to 5-8 cm.
Preferably, the construction method of the water pumping device comprises the following steps:
the method comprises the following steps: connecting a water pump with an external connecting pipe, turning on a water pump switch, and directly conveying an external water source into a treatment barrel;
step two: opening the movable cover, and injecting a solid agent into the edge-placed bearing cylinder to enable the solid agent to completely fall into the deep grooves on the periphery of the edge-placed bearing cylinder;
step three: a circuit switch of the servo motor is directly turned on, the servo motor drives the built-in stirring rod to rotate, the built-in stirring rod drives the built-in bearing cylinder to rotate simultaneously while rotating and stirring, and the built-in bearing cylinder fully contacts with a water source through the penetration effect of the penetration through groove to complete the treatment of the water source;
step four: and opening a drainage valve of the treatment barrel to discharge the treated water source.
Compared with the prior art, the invention has the beneficial effects that:
1. carry out intensive mixing through using desulfurization gypsum and water source, discharge once more in whole saline and alkaline land, desulfurization gypsum belongs to neutral substance, can react and draw with the ion of receiving in the saline and alkaline land, thereby reach the treatment effect to the saline and alkaline land, set up the basin that the degree of depth is 5-10cm in proper order in the peripheral certain interval of fertilizer again, fill water to the basin is inside, distance control between basin and the crops is at the 10-15cm interval, the land is reclaimed, accomplish the planting work of crops, carry out the planting in-process at crops, this interval value can not cause crops can't absorb the unable growth of nutrient, thereby the rhizome that can make crops equally can extend to the next door, thereby accomplish the secondary of land is reclaimed and is used up, also do benefit to the growth of crops simultaneously, make the more prosperous that crops grow.
2. The movable cover is opened, the solid agent is injected into the bearing cylinder while being placed, the solid agent completely drops into deep grooves around the bearing cylinder while being placed, a circuit switch of the servo motor is directly opened, the servo motor drives the built-in stirring rod to rotate, the built-in stirring rod drives the bearing cylinder while rotating and stirring, the bearing cylinder is placed while rotating, the bearing cylinder is placed while penetrating through the through grooves, the solid agent inside the bearing cylinder is fully contacted with a water source, the water source is treated, the water source can be pumped out, the water source is fully purified, and the discharged water source cannot be polluted again.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic perspective view of the internal structure of the water pumping device of the present invention;
FIG. 3 is a schematic plan view of the inner structure of the treating barrel of the present invention.
In the figure: 1. a water pumping device; 11. a lower base plate; 12. a treatment barrel; 121. a delivery valve; 122. a display screen; 123. a servo motor; 124. a movable cover; 125. a limiting sliding disc is arranged inside; 126. a stirring rod is arranged inside; 127. a bearing cylinder is arranged at the side; 128. the through groove is penetrated; 13. and (4) a water pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides three examples example 1
Referring to fig. 1, a method for treating moderate and severe saline-alkali soil, includes the following steps:
s1, predicting a waterproof interlayer: excavating heavy clay outside the soil, recording the excavated depth, draining water in the excavated area, standing for a period of time, and detecting the depth of the waterproof interlayer by using an external measuring marker post;
s2, scribing: measuring and distinguishing the land to be treated, controlling the size of a scribing interval within a specified interval, and paving white powder in the area to be scribed;
s3, land ploughing: ploughing the marking area by adopting an external high-horsepower locomotive, wherein the ploughing depth is the depth obtained by measurement, and breaking plough layer hardening by combining deep scarification;
s4, preparing a purifying solution: according to the land to be purified, preparing proper amount of water and desulfurized gypsum, wherein the ratio of desulfurized gypsum to water is set to be 1: 15, mixing the purified liquid by adopting an external mixing device to completely dissolve the gypsum in a water source;
s5, conveying the purified liquid: the method comprises the following steps of sequentially conveying a purifying solution into a pre-ploughed excavation region by adopting an external pumping device 1, enabling the purifying solution to penetrate through the whole saline-alkali soil, standing for a long time, and pumping out a water source by adopting the external pumping device;
s6, pre-buried pipe: at least one drainage pipeline for discharging water in the saline-alkali soil treatment area is embedded around the hard layer respectively, so that the water is prevented from accumulating;
s7, fertilizing treatment: preparing inorganic fertilizer and mineral fertilizer, wherein the mineral fertilizer is weathered coal, mixing the applied fertilizer, and sequentially sprinkling the fertilizer in a ploughing area to finish the fertilization work;
s8, crop planting: ploughing the fertilizer after being poured, arranging a water tank with the depth of 5cm in a certain interval around the fertilizer, filling water into the water tank, controlling the distance between the water tank and crops to be 10cm, reclaiming land, loosening soil in a road section within a linear distance, enabling crops to be well absorbed, and finishing the planting work of the crops.
And in the step S1, the pit digging depth is controlled within 30cm for different alkalization degrees of the land, and the waterproof standing time is controlled within 1 h.
The scribe line interval size in step S2 is set within the interval of 1.5 m.
In step S4, the rotation speed of the mixing device is set within the interval of 150r/min, and the mixing time is controlled within 2 h.
The depth of the purified liquid in the step S5 is controlled within 3cm, and the standing time is controlled within 3 h.
In step S6, the drain pipe is semicircular and has a half area in an open state.
In step S7, the rotational speed of the mixing device is set within 100r/min, and the mixing time period is controlled within 10 min.
In step S8, the fertilizer-surrounding area is set to 5 cm. Example 2
Referring to fig. 1, a method for treating moderate and severe saline-alkali soil, includes the following steps:
s1, predicting a waterproof interlayer: excavating heavy clay outside the soil, recording the excavated depth, draining water in the excavated area, standing for a period of time, and detecting the depth of the waterproof interlayer by using an external measuring marker post;
s2, scribing: measuring and distinguishing the land to be treated, controlling the size of a scribing interval within a specified interval, and paving white powder in the area to be scribed;
s3, land ploughing: ploughing the marking area by adopting an external high-horsepower locomotive, wherein the ploughing depth is the depth obtained by measurement, and breaking plough layer hardening by combining deep scarification;
s4, preparing a purifying solution: according to the land to be purified, preparing proper amount of water and desulfurized gypsum, wherein the ratio of desulfurized gypsum to water is set to be 1: 15, mixing the purified liquid by adopting an external mixing device to completely dissolve the gypsum in a water source;
s5, conveying the purified liquid: the method comprises the following steps of sequentially conveying a purifying solution into a pre-ploughed excavation region by adopting an external pumping device 1, enabling the purifying solution to penetrate through the whole saline-alkali soil, standing for a long time, and pumping out a water source by adopting the external pumping device;
s6, pre-buried pipe: at least one drainage pipeline for discharging water in the saline-alkali soil treatment area is embedded around the hard layer respectively, so that the water is prevented from accumulating;
s7, fertilizing treatment: preparing inorganic fertilizer and mineral fertilizer, wherein the mineral fertilizer is weathered coal, mixing the applied fertilizer, and sequentially sprinkling the fertilizer in a ploughing area to finish the fertilization work;
s8, crop planting: ploughing the fertilizer after being poured, arranging a water tank with the depth of 10cm in a certain interval around the fertilizer, filling water into the water tank, controlling the distance between the water tank and crops to be 15cm, reclaiming land, loosening soil in a road section within a linear distance, enabling crops to be well absorbed, and finishing the planting work of the crops.
And in the step S1, the pit digging depth is controlled within 45cm for different alkalization degrees of the land, and the waterproof standing time is controlled within 2 h.
In step S2, the scribe line interval is set within the interval of 2 m.
In step S4, the rotation speed of the mixing device is set within the interval of 250r/min, and the mixing time is controlled within 3 h.
The depth of the purified liquid in the step S5 is controlled within 5cm, and the standing time is controlled within 4 h.
In step S6, the drain pipe is semicircular and has a half area in an open state.
In step S7, the rotation speed of the mixing device is set within 150r/min, and the mixing time period is controlled within 15 min.
In step S8, the fertilizer peripheral interval is set to 5-8 cm.
Experiment of
According to the land treated by the two embodiments and the land existing in the prior art, a certain crop producer records the same crop growth effect of various lands, and the recorded data are shown in the following table:
crop growth height comparison display table
From the data shown in the above table, it can be seen that the treated soil of the two examples has the best growth effect of the crops in the growth process of the crops, and the treated soil of example 2.
Example 3
Referring to fig. 2-3, the water pumping device 1 includes a lower plate 11, a processing barrel 12 and a water pump 13, the processing barrel 12 and the water pump 13 are respectively located at two sides of the upper end of the lower plate 11, and a water pipe is connected between the water pump 13 and the processing barrel 12;
a conveying valve 121 is arranged on one side of the annular outer surface of the treatment barrel 12, a display screen 122 is arranged at the middle position of the annular outer surface of the treatment barrel 12, a servo motor 123 is fixedly arranged at the middle position of the upper end of the treatment barrel 12, the servo motor 123 is electrically connected with an external power supply and the display screen 122, an internal stirring rod 126 is fixedly arranged at the output end of the servo motor 123, a built-in limiting sliding disc 125 is arranged in the treatment barrel 12 close to the circular surface of the upper end, a side bearing cylinder 127 is rotatably connected in the built-in limiting sliding disc 125, the side bearing cylinder 127 is fixedly connected with the built-in stirring rod 126, a plurality of through grooves 128 are formed in the inner wall and the outer wall of the side bearing cylinder 127, movable covers 124 are arranged on two sides of the servo motor 123 on the upper end surface of the treatment barrel 12, and the movable covers 124 correspond to the position of the built-in limiting sliding disc 125 and are in a through state;
when the servo motor 123 rotates, the side-mounted receiving cylinder 127 can be effectively driven to rotate simultaneously, the side-mounted receiving cylinder 127 can rotate inside the built-in limiting sliding disc 125, the inside of the side-mounted receiving cylinder 127 is in a hollow state, and the solid treating agent inside can directly flow into the side-mounted receiving cylinder 127 by opening the movable cover 124;
the construction method of the water pumping device 1 comprises the following steps:
the method comprises the following steps: connecting the water pump 13 with an external connecting pipe, turning on a water pump switch, and directly conveying an external water source into the treatment barrel 12;
step two: opening the movable cover 124, and injecting the solid agent into the side bearing cylinder 127 to make the solid agent completely drop into the deep groove around the side bearing cylinder 127;
step three: a circuit switch of the servo motor 123 is directly turned on, the servo motor 123 drives the built-in stirring rod 126 to rotate, the built-in stirring rod 126 drives the built-in bearing cylinder 127 to rotate simultaneously while rotating for stirring, and the built-in bearing cylinder 127 enables the internal solid agent to fully contact with a water source through the penetrating action of the penetrating through groove 128, so that the water source is treated;
step four: the delivery valve 121 of the treatment tank 12 is opened to discharge the treated water.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The medium and heavy saline-alkali soil treatment method is characterized by comprising the following steps:
s1, predicting a waterproof interlayer: excavating heavy clay outside the soil, recording the excavated depth, draining water in the excavated area, standing for a period of time, and detecting the depth of the waterproof interlayer by using an external measuring marker post;
s2, scribing: measuring and distinguishing the land to be treated, controlling the size of a scribing interval within a specified interval, and paving white powder in the area to be scribed;
s3, land ploughing: ploughing the marking area by adopting an external high-horsepower locomotive, wherein the ploughing depth is the depth obtained by measurement, and breaking plough layer hardening by combining deep scarification;
s4, preparing a purifying solution: according to the land to be purified, preparing proper amount of water and desulfurized gypsum, wherein the ratio of desulfurized gypsum to water is set to be 1: 15, mixing the purified liquid by adopting an external mixing device to completely dissolve the gypsum in a water source;
s5, conveying the purified liquid: the method comprises the following steps of (1) sequentially conveying a purifying liquid into a pre-ploughed excavation area by adopting an external water pumping device (1), enabling the purifying liquid to penetrate through the whole saline-alkali soil, standing for a long time, and pumping out a water source by adopting the external water pumping device;
s6, pre-buried pipe: at least one drainage pipeline for discharging water in the saline-alkali soil treatment area is embedded around the hard layer respectively, so that the water is prevented from accumulating;
s7, fertilizing treatment: preparing inorganic fertilizer and mineral fertilizer, wherein the mineral fertilizer is weathered coal, mixing the applied fertilizer, and sequentially sprinkling the fertilizer in a ploughing area to finish the fertilization work;
s8, crop planting: ploughing the fertilizer after being poured, arranging a water tank with the depth of 5-10cm in a certain interval around the fertilizer, filling water into the water tank, controlling the distance between the water tank and crops to be 10-15cm, loosening soil in a road section within a linear distance, enabling the crops to be well absorbed, and reclaiming the land to finish the planting work of the crops.
2. The method for treating moderate and severe saline-alkali soil according to claim 1, wherein in the step S1, the excavation depth is controlled within 30-45cm according to different alkalization degrees of the soil, and the waterproof standing time is controlled within 1-2 h.
3. The method for treating moderately severe saline-alkali soil according to claim 1, wherein the size of the streaked interval in step S2 is set within an interval of 1.5-2 m.
4. The method as claimed in claim 1, wherein the rotation speed of the mixing device in step S4 is set within the interval of 150-250r/min, and the mixing duration is controlled within 2-3 h.
5. The method for treating moderate and severe saline-alkali soil according to claim 1, wherein the depth of the purifying liquid in the step S5 is controlled within 3-5cm, and the standing time is controlled within 3-4 h.
6. The method for treating moderately severe saline-alkali soil according to claim 1, wherein the drainage pipeline in step S6 is semicircular, and a half area is open.
7. The method as claimed in claim 1, wherein the rotation speed of the mixing device in step S7 is set within 100-150r/min, and the mixing time is controlled within 10-15 min.
8. The method for treating moderately severe saline-alkali soil according to claim 1, wherein in the step S8, the fertilizer peripheral interval is set to be 5-8 cm.
9. The medium and heavy saline-alkali soil treatment method according to claim 1, characterized in that the construction method of the water pumping device (1) comprises the following steps:
the method comprises the following steps: connecting a water pump (13) with an external connecting pipe, turning on a water pump switch, and directly conveying an external water source into a treatment barrel (12);
step two: opening the movable cover (124), and injecting a solid agent into the side bearing cylinder (127) to enable the solid agent to completely drop into the deep grooves on the periphery of the side bearing cylinder (127);
step three: a circuit switch of the servo motor (123) is directly turned on, the servo motor (123) drives the built-in stirring rod (126) to rotate, the built-in stirring rod (126) drives the built-in bearing cylinder (127) to simultaneously rotate while rotating for stirring, and the built-in bearing cylinder (127) enables the internal solid agent to fully contact with a water source through the penetration effect of the penetration through groove (128), so that the water source is treated;
step four: and opening a drainage valve of the treatment barrel (12) to drain the treated water source.
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| CN106180161A (en) * | 2016-07-15 | 2016-12-07 | 山东胜伟园林科技有限公司 | A kind of method preventing desulfurated plaster improvement alkaline land soil secondary pollution |
| CN108184358A (en) * | 2018-01-12 | 2018-06-22 | 郑晓华 | A kind of physics and the effective ways in bioconjugation improvement salt-soda soil |
| CN109168392A (en) * | 2018-09-23 | 2019-01-11 | 宁波高智科技咨询服务有限公司 | A kind of synthesis improvement method in salt-soda soil |
| CN110547065A (en) * | 2019-09-07 | 2019-12-10 | 正大农业科技(浙江)有限公司 | method for improving saline-alkali soil by using composite waste |
| CN111170794A (en) * | 2020-03-20 | 2020-05-19 | 东营市农业科学研究院 | Saline-alkali soil improvement fertilizer and preparation method thereof |
| CN111264114A (en) * | 2020-03-20 | 2020-06-12 | 中国市政工程华北设计研究总院有限公司 | Method for promoting infiltration and reducing emission of saline-alkali soil greening soil |
| CN212701611U (en) * | 2020-07-08 | 2021-03-16 | 天津施文化妆品有限公司 | Solution dispersion devices is used in cosmetics processing |
| CN213596070U (en) * | 2020-11-13 | 2021-07-02 | 安徽大唐润和建设科技有限公司 | Integrated sewage treatment device |
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