CN114365601B - Method for improving quality of low-pollution paddy field based on composite biochar and bacterial liquid - Google Patents
Method for improving quality of low-pollution paddy field based on composite biochar and bacterial liquid Download PDFInfo
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- CN114365601B CN114365601B CN202210008640.1A CN202210008640A CN114365601B CN 114365601 B CN114365601 B CN 114365601B CN 202210008640 A CN202210008640 A CN 202210008640A CN 114365601 B CN114365601 B CN 114365601B
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- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 40
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000000746 purification Methods 0.000 claims abstract description 117
- 239000003337 fertilizer Substances 0.000 claims abstract description 19
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 18
- 235000009566 rice Nutrition 0.000 claims abstract description 18
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000003610 charcoal Substances 0.000 claims description 30
- 239000002028 Biomass Substances 0.000 claims description 25
- 239000004677 Nylon Substances 0.000 claims description 20
- 229920001778 nylon Polymers 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 16
- 241000894006 Bacteria Species 0.000 claims description 15
- 241000233866 Fungi Species 0.000 claims description 8
- 230000002195 synergetic effect Effects 0.000 claims description 5
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- 241000589151 Azotobacter Species 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 240000008042 Zea mays Species 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- 230000000593 degrading effect Effects 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
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- 230000003381 solubilizing effect Effects 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 239000010828 animal waste Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 2
- 238000007726 management method Methods 0.000 claims 1
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Classifications
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/08—Organic fertilisers containing added bacterial cultures, mycelia or the like
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid, which specifically comprises the following steps: step one, field preparation; step two, grid cutting seedling raising; step three, planting and purifying; step four, purifying and changing water; the invention relates to the technical field of soil remediation. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid comprises the steps of carrying out groove arrangement on the paddy field, constructing a standard planting ridge, isolating a water-proof seedling culture cell on the planting ridge, soaking the composite biochar in a main water inlet purification ditch, a main water outlet purification ditch and an auxiliary water inlet purification ditch, carrying out primary purification on a water body, carrying out secondary continuous purification on the seedling culture cell by using the composite biochar and a composite bacterial liquid fertilizer, ensuring effective purification of the water body, reducing the content of pollutants in rice grains, and simultaneously improving the yield of rice, thereby effectively improving the soil quality of the paddy field in a mining area.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid.
Background
The method for improving the quality of the low-pollution paddy field based on the composite biological carbon and the bacterial liquid is provided, so that the content of pollutants in rice grains is reduced, the yield of rice is improved, and the soil quality of the paddy field in the mining area is effectively improved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for improving the quality of a low-pollution rice field based on composite biochar and bacterial liquid, and solves the problems.
(II) technical scheme
In order to realize the purpose, the invention provides the following technical scheme: a method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid specifically comprises the following steps:
step one, field preparation: determining the position of a paddy field, respectively digging a main water inlet purification ditch and a main water outlet purification ditch at two ends of the paddy field, arranging a main water inlet on the main water inlet purification ditch, arranging a main water outlet on the main water outlet purification ditch, digging a plurality of auxiliary water inlet purification ditches and auxiliary water outlet ditches between the main water inlet purification ditch and the main water outlet purification ditch in the paddy field, and arranging the auxiliary water inlet purification ditches and the auxiliary water outlet ditches in a staggered manner, wherein the main water inlet purification ditches, the main water outlet purification ditches, the auxiliary water inlet purification ditches and the auxiliary water outlet ditches enclose the paddy field into planting ridges with standard sizes;
step two, grid cutting seedling culture: inserting water-proof seedling culture partition plates into the divided planting ridges in the first step, enclosing the planting ridges into standard seedling culture cells, arranging water inlet pipes with valves at the positions, close to the auxiliary water inlet purification ditches, of the seedling culture partition plates, arranging water outlet pipes with valves at the positions, close to the auxiliary water outlet ditches, of the seedling culture partition plates, arranging one ends of the water inlet pipes close to one sides of the main water inlet purification ditches, and arranging the water outlet pipes close to one sides of the main water outlet purification ditches;
step three, planting and purifying: planting rice in a seedling raising cell according to a lattice with the size of 9cm-10cm, managing the conventional rice field, respectively inserting a plurality of placing rods into a main water inlet purification ditch, a main water outlet purification ditch, an auxiliary water inlet purification ditch and the seedling raising cell, suspending composite biomass charcoal on the placing rods in the main water inlet purification ditch, the main water outlet purification ditch and the auxiliary water inlet purification ditch, respectively soaking the placing rods in the main water inlet purification ditch, the main water outlet purification ditch and the auxiliary water inlet purification ditch, suspending composite biomass charcoal and a composite liquid fertilizer on the placing rods in the seedling raising cell, and soaking the placing rods in the seedling raising cell;
step four, purifying and changing water: regularly change compound living beings charcoal and compound fungus liquid fertilizer in the third step to when trading water to the district of growing seedlings, open the valve on inlet tube and the outlet pipe, the water that purifies in the purification ditch of main intaking flows into the district of growing seedlings along the inlet tube through vice purification ditch of intaking, and waste water flows into vice ditch of going out through the outlet pipe, finally flows out through main delivery port from vice purification ditch of intaking, trades water and accomplishes the back, and it can to close the valve on inlet tube and the outlet pipe.
Through adopting above-mentioned technical scheme, carry out the slot arrangement to the paddy field, establish out the standard planting ridge, and keep apart out the district of growing seedlings of water proof on planting the ridge, at main purification ditch of intaking, soak compound living beings carbon in main purification ditch of intaking and the vice purification ditch of intaking, purify for the first time the water, utilize compound living beings carbon and compound fungus liquid fertilizer to carry out the secondary to the district of growing seedlings and continuously purify, guarantee the effective purification of water, when reducing rice seed grain pollutant content, promote rice output, thereby effectively improve the soil quality in mining area paddy field.
The invention is further configured to: in the first step, the width of the main water inlet purification ditch and the main water outlet purification ditch is 20-30cm, and the depth is 50-60cm.
The invention is further configured to: the width of the auxiliary water inlet purification ditch and the auxiliary water outlet ditch is 5-10cm, and the depth of the auxiliary water inlet purification ditch and the auxiliary water outlet ditch is 30-40cm.
The invention is further configured to: the size of the seedling raising plot is set to be 2m x 2m, and the height of the seedling raising partition plate is 30-50cm.
The invention is further configured to: in the third step, a plurality of evenly spaced placing rods are respectively inserted into the main water inlet purification ditch, the main water outlet purification ditch, the auxiliary water inlet purification ditch and the seedling culture plot, wherein the distance between every two adjacent placing rods is 0.5-1m.
The invention is further configured to: the utility model discloses a nylon wire bag, including the assembly plate, the assembly plate is used for placing the pole, the positive middle part of assembly plate is provided with the note number tablet, the equal fixedly connected with couple in the positive left and right sides of assembly plate, and the surface of couple has the nylon pocket through connecting the rope system, the bottom fixedly connected with sleeve of assembly plate, and telescopic bottom threaded connection have the income ground awl.
Through adopting above-mentioned technical scheme, simple structure easily retrieves place the pole, utilizes the nylon pocket to deposit compound living beings charcoal and compound fungus liquid fertilizer, for the compound living beings charcoal and the fertile condition of facilitating of placing of compound fungus liquid, and under the cooperation of sleeve and income ground awl sets up, can carry out free regulation to the height of placing the pole for place the adaptation paddy field environment that the pole can be fine.
The invention is further configured to: the composite biomass charcoal is prepared from corn straw biomass charcoal, coconut shell biomass charcoal and animal waste biomass charcoal, and is prepared from the following components in percentage by weight of 1.3:3.7:5.7.
the invention is further configured to: the composite bacterial liquid fertilizer is prepared from fertilizer-retaining synergistic bacteria, plant rhizosphere growth-promoting bacteria and bacillus according to the weight ratio of 1.7:2.3:3.1, wherein the fertilizer-retaining synergistic bacteria are prepared from azotobacter, phosphate solubilizing bacteria and cellulose degrading bacteria according to a weight ratio of 1:1:1, and the ratio of the components is 1.
(III) advantageous effects
The invention provides a method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid. The method has the following beneficial effects:
(1) According to the method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid, a standard planting ridge is constructed by arranging grooves in the paddy field, water-proof seedling growing cells are isolated on the planting ridge, the composite biochar is soaked in a main water inlet purification ditch, a main water outlet purification ditch and an auxiliary water inlet purification ditch, the water body is subjected to primary purification, the seedling growing cells are subjected to secondary continuous purification by using the composite biochar and the composite bacterial liquid fertilizer, the effective purification of the water body is ensured, the rice yield is improved while the pollutant content of rice grains is reduced, and the soil quality of the paddy field in a mining area is effectively improved.
(2) According to the method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid, the placing rod which is simple in structure and easy to recover is used for storing the composite biochar and the composite bacterial liquid fertilizer through the nylon mesh bag, convenient conditions are provided for placing the composite biochar and the composite bacterial liquid fertilizer, the height of the placing rod can be freely adjusted under the matched setting of the sleeve and the ground entering cone, and the placing rod can be well matched with the paddy field environment.
Drawings
FIG. 1 is a schematic view of the field prepared by the present invention;
fig. 2 is a schematic structural view of the placing rod of the present invention.
In the figure, 1, a main water inlet purification ditch; 2. a main effluent purification ditch; 3. a main water outlet; 4. an auxiliary water inlet purification ditch; 5. a secondary water outlet channel; 6. seedling raising partition plates; 7. a water inlet pipe; 8. a water outlet pipe; 9. placing a rod; 10. compounding biomass charcoal; 11. compounding bacterial liquid fertilizer; 12. assembling a plate; 13. marking a number plate; 14. hooking; 15. a nylon mesh bag; 16. a sleeve; 17. an earth cone; 18. a main water inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the invention provides a technical solution: a method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid specifically comprises the following steps:
step one, field preparation: determining the position of a paddy field, respectively digging a main water inlet purification ditch 1 and a main water outlet purification ditch 2 at two ends of the paddy field, wherein the width of the main water inlet purification ditch 1 and the width of the main water outlet purification ditch 2 are 20-30cm, the depth of the main water inlet purification ditch is 50-60cm, a main water inlet 18 is arranged on the main water inlet purification ditch 1, a main water outlet 3 is arranged on the main water outlet purification ditch 2, digging a plurality of auxiliary water inlet purification ditches 4 and auxiliary water outlet ditches 5 between the main water inlet purification ditch 1 and the main water outlet purification ditch 2 in the paddy field, the width of the auxiliary water inlet purification ditches 4 and the auxiliary water outlet ditches 5 is 5-10cm, the depth of the auxiliary water inlet purification ditches 4 and the auxiliary water outlet ditches 5 are arranged in a staggered mode, and the main water inlet purification ditches 1, the main water outlet purification ditches 2, the auxiliary water inlet purification ditches 4 and the auxiliary water outlet ditches 5 enclose the paddy field into planting ridges with standard sizes;
step two, grid cutting seedling culture: inserting water-proof seedling-raising partition plates 6 into the divided planting ridges in the first step, enclosing the planting ridges into standard seedling-raising cells, setting the size of each seedling-raising cell to be 2m x 2m, setting the height of each seedling-raising partition plate 6 to be 30-50cm, and manufacturing the seedling-raising partition plates 6 by adopting waterproof materials, wherein the edges of the seedling-raising partition plates 6 are arranged in a wave shape, a water inlet pipe 7 with a valve is arranged at the position, close to the auxiliary water inlet purification ditch 4, of each seedling-raising partition plate 6, a water outlet pipe 8 with a valve is arranged at the position, close to the auxiliary water outlet ditch 5, of each seedling-raising partition plate 6, one end of each water inlet pipe 7 is arranged close to one side of the main water inlet purification ditch 1, and the water outlet pipe 8 is arranged close to one side of the main water outlet purification ditch 2;
step three, planting and purifying: the method comprises the following steps of planting rice in a seedling raising district according to lattices with the size of 9cm-10cm, managing a conventional rice field, respectively inserting a plurality of evenly-spaced placing rods 9 into a main water inlet purification ditch 1, a main water outlet purification ditch 2, an auxiliary water inlet purification ditch 4 and the seedling raising district, wherein the distance between every two adjacent placing rods 9 is 0.5-1m, and filling composite biomass charcoal 10 into nylon mesh bags 15 on the placing rods 9 in the main water inlet purification ditch 1, the main water outlet purification ditch 2 and the auxiliary water inlet purification ditch 4, wherein the composite biomass charcoal 10 is prepared from corn straw biomass charcoal, coconut shell biomass charcoal and animal excrement biomass charcoal according to the weight ratio of 1.3:3.7:5.7, and soak in main purification ditch 1 of intaking, main purification ditch 2 of going out and vice purification ditch 4 respectively, in nylon mesh bag 15 on placing the pole 9 in the cell of growing seedlings in-between to load compound living beings charcoal 10 and compound fungus liquid fertilizer 11, and soak in the cell of growing seedlings, be provided with 6-8 groups in a cell of growing seedlings and place pole 9, as the detailed description, compound fungus liquid fertilizer 11 is by protecting fertile increase bacterium, plant rhizosphere growth promoting bacterium and bacillus according to the weight ratio 1.7:2.3:3.1, wherein the fertilizer-retaining synergistic bacteria are prepared from azotobacter, phosphate solubilizing bacteria and cellulose degrading bacteria according to a weight ratio of 1:1:1, wherein the bacillus has the function of reducing the absorption of heavy metals by crops;
step four, purifying and changing water: regularly change compound living beings charcoal 10 and compound fungus liquid fertilizer 11 in the third step to when trading the water to the district of growing seedlings, open the valve on inlet tube 7 and the outlet pipe 8, the water after purifying flows into the district of growing seedlings through vice purification ditch 4 of intaking in the main purification ditch 1 of intaking along inlet tube 7, waste water flows into vice ditch 5 of going out through outlet pipe 8, finally flows out through main delivery port 3 in vice purification ditch 4 of intaking, trade the water completion after, close the valve on inlet tube 7 and the outlet pipe 8 can.
As a preferred scheme, a placing rod 9 is inserted into the main water inlet purification ditch 1 and the main water outlet purification ditch 2, a bag of composite biomass charcoal 10 is placed in each of two nylon mesh bags 15 of the placing rod 9, the nylon mesh bags 15 are made of 50-80-mesh nylon meshes and are arranged at intervals of 1-2m, and the nylon mesh bags 15 are about 30cm far away from a water body.
As a preferred scheme, a placing rod 9 is inserted into the auxiliary water inlet purification ditch 4, two nylon mesh bags 15 of the placing rod 9 are respectively provided with a bag of composite biomass charcoal, the nylon mesh bags 15 are made of 120-160 meshes of nylon mesh and have an interval of 0.5-1m, wherein the nylon mesh bags 15 are about 20cm immersed in a water body; the secondary water outlet channel 4 is not provided with biomass charcoal.
As a preferred scheme, 6-8 placing rods 9 are placed in a seedling raising cell enclosed by each seedling raising partition plate 6, nylon mesh bags 15 on two sides of each placing rod 9 are respectively filled with composite biomass charcoal 10 (the bags are made of 200-mesh nylon meshes) and composite bacterial liquid fertilizer 11 (the bags are made of 400-mesh nylon meshes), and the nylon mesh bags 15 are about 10cm immersed in a water body.
When the composite biomass charcoal 10 and the composite bacterial liquid fertilizer 11 in the seedling culture cell are periodically updated, the composite biomass charcoal 10 and the composite bacterial liquid fertilizer 11 are updated every 10 to 15 days according to the pollution degree.
In conclusion, by adopting the embodiment, the pollutant content of rice grains can be averagely reduced by 12.76%, the rice yield can be improved by 18.12%, and the soil quality of the rice field in a mining area can be effectively improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for improving the quality of a low-pollution paddy field based on composite biochar and bacterial liquid is characterized by comprising the following steps: the method specifically comprises the following steps:
step one, field preparation: determining the position of a paddy field, respectively digging a main water inlet purification ditch (1) and a main water outlet purification ditch (2) at two ends of the paddy field, arranging a main water inlet (18) on the main water inlet purification ditch (1), arranging a main water outlet (3) on the main water outlet purification ditch (2), digging a plurality of auxiliary water inlet purification ditches (4) and auxiliary water outlet ditches (5) between the main water inlet purification ditch (1) and the main water outlet purification ditch (2) in the paddy field, and arranging the auxiliary water inlet purification ditches (4) and the auxiliary water outlet ditches (5) in a staggered manner, wherein the main water inlet purification ditch (1), the main water outlet purification ditch (2), the auxiliary water inlet purification ditches (4) and the auxiliary water outlet ditches (5) surround the paddy field into planting ridges with standard sizes;
step two, grid cutting seedling culture: inserting water-proof seedling-raising partition plates (6) into the divided planting ridges in the step one, enclosing the planting ridges into standard seedling-raising cells, arranging water inlet pipes (7) with valves at positions, close to the auxiliary water inlet purification ditches (4), of the seedling-raising partition plates (6), arranging water outlet pipes (8) with valves at positions, close to the auxiliary water outlet ditches (5), of the seedling-raising partition plates (6), arranging one ends of the water inlet pipes (7) close to one sides of the main water inlet purification ditches (1), and arranging the water outlet pipes (8) close to one sides of the main water outlet purification ditches (2);
step three, planting and purifying: planting rice in a seedling raising cell according to a 9-10 cm grid, performing conventional rice field management, respectively inserting a plurality of placing rods (9) into a main water inlet purification ditch (1), a main water outlet purification ditch (2), an auxiliary water inlet purification ditch (4) and the seedling raising cell, suspending composite biomass charcoal (10) on the placing rods (9) in the main water inlet purification ditch (1), the main water outlet purification ditch (2) and the auxiliary water inlet purification ditch (4), respectively soaking the placing rods in the main water inlet purification ditch (1), the main water outlet purification ditch (2) and the auxiliary water inlet purification ditch (4), suspending the composite biomass charcoal (10) and a composite bacterial liquid fertilizer (11) on the placing rods (9) in the seedling raising cell, and soaking the placing rods in the seedling raising cell;
step four, purifying and changing water: regularly change compound biomass charcoal (10) and compound fungus liquid fertilizer (11) in the third step to when trading water to the district of growing seedlings, open the valve on inlet tube (7) and outlet pipe (8), the water after purifying flows into the district of growing seedlings through vice purification ditch (4) of intaking in main purification ditch (1) along inlet tube (7), waste water flows into in vice outlet ditch (5) through outlet pipe (8), finally flows out through main delivery port (3) from vice purification ditch (4) of intaking, after trading the water and accomplishing, close the valve on inlet tube (7) and outlet pipe (8) can.
2. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: in the first step, the width of the main water inlet purification ditch (1) and the main water outlet purification ditch (2) is 20-30cm, and the depth is 50-60cm.
3. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: the width of the auxiliary water inlet purification ditch (4) and the auxiliary water outlet ditch (5) is 5-10cm, and the depth is 30-40cm.
4. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: the size of the seedling raising plot is set to be 2m x 2m, and the height of the seedling raising partition plate (6) is 30-50cm.
5. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: in the third step, a plurality of evenly spaced placing rods (9) are respectively inserted into the main water inlet purification ditch (1), the main water outlet purification ditch (2), the auxiliary water inlet purification ditch (4) and the seedling culture plot, wherein the distance between every two adjacent placing rods (9) is 0.5-1m.
6. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: place pole (9) including assembly plate (12), the positive middle part of assembly plate (12) is provided with note number tablet (13), the equal fixedly connected with couple (14) of the positive left and right sides of assembly plate (12), and the surface of couple (14) has nylon mesh bag (15) through connecting the tether, the bottom fixedly connected with sleeve (16) of assembly plate (12), and the bottom threaded connection of sleeve (16) have income ground awl (17).
7. The method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 6, wherein the method comprises the following steps: the composite biomass charcoal (10) is prepared from corn straw biomass charcoal, coconut shell biomass charcoal and animal waste biomass charcoal, and is prepared from the following components in a weight ratio of 1.3:3.7:5.7.
8. the method for improving the quality of the low-pollution paddy field based on the composite biochar and the bacterial liquid as claimed in claim 1, wherein the method comprises the following steps: the composite bacterial liquid fertilizer (11) is prepared from fertilizer-retaining synergistic bacteria, plant rhizosphere growth-promoting bacteria and bacillus according to the weight ratio of 1.7:2.3:3.1, wherein the fertilizer-retaining synergistic bacteria are prepared from azotobacter, phosphate solubilizing bacteria and cellulose degrading bacteria according to a weight ratio of 1:1:1, is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20220419 Assignee: Hunan Shuotai Agricultural Comprehensive Development Co.,Ltd. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023980052631 Denomination of invention: A method for improving the quality of low pollution rice fields based on composite biochar and bacterial solution Granted publication date: 20221115 License type: Common License Record date: 20231218 |
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