CN113174267B - Soda saline-alkali land rice field modifier and integrated homogeneous modification method - Google Patents
Soda saline-alkali land rice field modifier and integrated homogeneous modification method Download PDFInfo
- Publication number
- CN113174267B CN113174267B CN202110458077.3A CN202110458077A CN113174267B CN 113174267 B CN113174267 B CN 113174267B CN 202110458077 A CN202110458077 A CN 202110458077A CN 113174267 B CN113174267 B CN 113174267B
- Authority
- CN
- China
- Prior art keywords
- rice field
- modifier
- alkali
- soil
- modifying agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention discloses a modifier for a soda saline-alkali land rice field and an integrated homogeneous modification method, and relates to a modifier and a modification method. The invention solves the problems of large transportation and application amount of the modifier and poor homogenization effect when the modifier is used for improving the rice field in the soda saline-alkali land at present. The modifier consists of polymeric ferric sulfate, aluminum sulfate, calcium nitrate, a microbial agent or a bacterial fertilizer; the method comprises the following steps: firstly, preparing a modifier; secondly, irrigating water and soaking the field; thirdly, harrowing and washing salt; and fourthly, reducing alkali and fertilizing. The rice field modifier is completely dissolved in water and can freely move along with irrigation water, so that the integration of irrigation and modification is realized, the modifier is convenient to automatically gather to an area with high soil saline-alkali degree, and the effect of homogenization and modification is achieved; the invention has strong operability, simple and easy raw materials, safety, no toxicity, convenient transportation, easy water solubility, convenient application, low cost and obvious synergy, and has great application value for improving the soda saline-alkali soil in the rice field.
Description
Technical Field
The invention relates to a modifier and a modification method.
Background
The west of the northeast pine tender plain is a centralized distribution area of soda saline-alkali soil in China, soil salt is mainly sodium carbonate and sodium bicarbonate, the pH and the alkalinity of the soil are high, the sodium transformation is serious, the treatment difficulty is high, and people find that the rice planting is an effective method for improving the saline-alkali soil in long-term competition with the saline-alkali soil. Since the 21 st century, under the guidance of the national food production increasing program, the region starts an engineering project for large-scale development of soda saline-alkali soil for planting rice, and plays an important role in increasing the food yield and improving the ecological environment. Because the soil is highly salinized, soil improvement becomes the premise of planting rice, so a large amount of soil improvement conditioners, such as desulfurized gypsum, phosphogypsum, aluminum sulfate, humic acid, furfural slag, brown coal powder, vermiculite, organic fertilizer, aeolian sandy soil, biochar and the like, and various novel improvement conditioners, are produced at the same time, and are various and inexhaustible in variety. Although various conditioners have effects on reducing the saline-alkali soil, most of the conditioners are in a solid form, are large in dosage and high in transportation and application cost, are difficult to be applied in a large area, and have large spatial heterogeneity of soda saline-alkali soil, and are often expressed as 'one-step three-soil replacement', so that the problem how to realize the homogenization improvement of the saline-alkali soil becomes a technical problem to be solved urgently in production.
The existing saline-alkali soil rice field mainly adopts an irrigation mode of flooding in the whole growth period, and how to scientifically and uniformly deliver the modifying agent to different positions of a field block by utilizing the water mobility to improve the soil can greatly save the application cost. However, most of the currently available saline-alkali soil modifiers are solid particles or powder, which are not easy to dissolve or have low solubility, and the irrigation mode is obviously not suitable. And the operation example of applying a small amount of waste sulfuric acid in part of the saline-alkali soil rice planting is also provided, but the sulfuric acid has corrosivity, so that potential safety hazards exist in the use process, and the large-area application value is not realized in the transportation and application processes.
Disclosure of Invention
The invention provides a modifier for a soda saline-alkali land rice field and an integrated homogenizing modification method, aiming at solving the problems of large transportation and application amount of the modifier and poor homogenizing effect in the conventional modification of the soda saline-alkali land rice field.
The soda saline-alkali soil rice field modifier comprises, by weight, 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of a microbial agent or a bacterial fertilizer.
The integrated homogeneous improvement method by utilizing the soda saline-alkali land rice field modifier is carried out according to the following steps:
firstly, preparing a modifier: weighing 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of a microbial agent or a bacterial fertilizer according to the weight part ratio, and mixing the mixture with water according to the weight part ratio of 1: 0.8-1.2 to obtain a liquid modifying agent;
secondly, irrigating and field soaking: injecting the liquid modifying agent into a rice field of the soda saline-alkali soil after rotary tillage and soil preparation along with irrigation water, soaking the rice field for 5-10 days, wherein the using amount of the liquid modifying agent is 2-6 tons/hectare;
thirdly, harrowing and salt washing: harrowing the rice field in the third step, and draining water after precipitating overnight; then the liquid modifying agent is injected into the rice field for cleaning, namely the liquid modifying agent is injected into the rice field along with new irrigation water, a weeding machine is used for harrowing, and water is drained after the precipitation is carried out overnight; repeatedly washing for 2-4 times, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time;
fourthly, alkali reduction and fertilizer cultivation: and (2) planting rice seedlings in the rice field after harrowing and salt washing, and respectively irrigating by using a liquid modifying agent for 2-3 times when the rice is in a green turning stage and a tillering initial stage, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time, and sealing for 1-2 days after irrigation to discharge, so that the improvement of the soda saline-alkali land rice field is completed.
The invention has the following beneficial effects:
1. the modifier for the saline-alkali soil rice field disclosed by the invention has the advantages that the using amount of the modifier is greatly reduced, and the cost of manual or mechanical application of the modifier is saved by 400-500 yuan/hectare;
2. the modifier is completely water-soluble, overcomes the defect that the fixed modifier is slightly soluble or insoluble in water, ensures that high-valence cations contained in the modifier can replace a large amount of sodium ions adsorbed by soil colloid, and the sodium ions are dissociated into a soil solution and are easy to be discharged out of a rice field by irrigation water, really plays a role in reducing salt and alkali, and simultaneously, the high-valence iron ions and aluminum ions are beneficial to the formation of large aggregates of soil, and promotes the improvement of the physical structure of saline-alkali soil;
3. the saline-alkali soil rice field modifier in the improvement method can freely move along with irrigation water, so that the integration of irrigation and improvement is realized, the modifier is convenient to automatically gather to an area with high soil saline-alkali degree, and the effect of homogenization and improvement is achieved;
4. the modifier disclosed by the invention is safe and nontoxic in composition, convenient to transport and use, strong in operability, simple and easy to implement, low in cost and remarkable in synergism, and has great application value in improving the soda saline-alkali soil rice field soil.
Drawings
FIG. 1 shows the results of comparison of rice yields in example 1;
FIG. 2 is a graph showing the results of comparison of the pH of soil tested in example 1;
FIG. 3 is a graph showing the results of comparing the salt conductivity of soil tested in example 1.
Detailed Description
The first embodiment is as follows: the modifier for the soda saline-alkali land rice field comprises, by weight, 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of a microbial agent or a bacterial fertilizer.
The polymeric ferric sulfate in the embodiment is liquid polymeric ferric sulfate, purchased from Yingkou xing industry chemical industry Co., Ltd, has the total iron content of more than or equal to 20.0 percent and the pH value of 2.0-3.0; aluminum sulfate is aluminum sulfate powder purchased from jin gong chemical company, limited, of Jinzhou city; calcium nitrate was a calcium nitrate granule purchased from galleries peng-color fine chemicals, ltd, fertilizer grade.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the microbial agent is a phosphorus-dissolving growth-promoting microbial agent. The rest is the same as the first embodiment.
The microbial agent is a phosphorus-dissolving growth-promoting microbial agent and is from the biological science and technology limited company of Zhenzhen of Meike of Shandong, wherein the bacillus subtilis is more than or equal to 2.0 hundred million/mL, and the extracellular polysaccharide is more than or equal to 1.0 mg/mL.
The third concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: the microbial fertilizer is a potassium fulvate high-potassium type. The rest is the same as the first embodiment.
The microbial fertilizer is a potassium fulvate high-potassium type, is produced by Jinan Zhongjie biotechnology limited, and is more than or equal to 50 percent of fulvic acid, more than or equal to 70 percent of organic matter, more than or equal to 10 percent of organic potassium and 100 percent of total solubility.
The fourth concrete implementation mode: the method for integrally and homogeneously improving the soda saline-alkali land rice field modifying agent comprises the following steps:
firstly, preparing a modifier: weighing 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of a microbial agent or a bacterial fertilizer according to the weight part ratio, and mixing the mixture with water according to the weight part ratio of 1: 0.8-1.2 to obtain a liquid modifying agent;
secondly, irrigating and field soaking: injecting the liquid modifying agent into a rice field of the soda saline-alkali soil after rotary tillage and soil preparation along with irrigation water, soaking the rice field for 5-10 days, wherein the using amount of the liquid modifying agent is 2-6 tons/hectare;
thirdly, harrowing and salt washing: harrowing the rice field in the third step, and draining water after precipitating overnight; then the liquid modifying agent is injected into the rice field for cleaning, namely the liquid modifying agent is injected into the rice field along with new irrigation water, a weeding machine is used for harrowing, and water is drained after the precipitation is carried out overnight; repeatedly washing for 2-4 times, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time;
fourthly, alkali reduction and fertilizer cultivation: and (2) planting rice seedlings in the rice field after harrowing and salt washing, and respectively irrigating by using a liquid modifying agent for 2-3 times when the rice is in a green turning stage and a tillering initial stage, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time, and sealing for 1-2 days after irrigation to discharge, so that the improvement of the soda saline-alkali land rice field is completed.
When the components in the first step of the embodiment are mixed, the components are properly stirred to completely dissolve aluminum sulfate and calcium nitrate particles, and the solution is uniformly mixed.
The rotary tillage and soil preparation in the second step of the embodiment are carried out according to the conventional farming habit, wherein the rotary tillage is carried out on the severe saline-alkali land rice field (the pH of the soil is more than or equal to 9.0) in spring, mainly shallow tillage is adopted, and the tillage depth is not more than 20 cm; the slight saline-alkali land rice field (the pH of the soil is less than 9.0) can be ploughed deeply in autumn or spring ploughing, and the ploughing depth is not more than 30 cm.
In the second step of the embodiment, the liquid modifying agent is uniformly dissolved in the sunning water pool and is injected into the field along with the irrigation water, or is uniformly injected into the irrigation water along with the water flow to soak the field, and shallow irrigation is suitable for deep ploughing.
In the third step of the embodiment, the harrowing is carried out by disturbing the harrows for 1 time, precipitating for 1 night, and then draining to wash salt and alkali; harrowing the land by a weeding machine, harrowing and precipitating, and then continuously draining water, wherein the frequency of draining and salt washing is determined according to the salinity and alkalinity, and the water is generally drained for 1-2 times; the number of times of washing salt in the drainage water of the medium and heavy rice fields is preferably 3-4, and is not excessive when the number of times of washing salt in the drainage water of the medium and heavy rice fields is properly increased.
The alkali-reducing fertilization of the fourth step of the embodiment plants rice seedlings in the rice field after harrowing and salt-washing by performing operations such as fertilization, rice transplanting, pesticide spraying and the like according to conventional cultivation, adding irrigation containing a modifier in the green turning period and the early tillering period, and discharging in a sealed manner after irrigation, thereby playing a role in salt-washing and alkali-reducing and being beneficial to fertilizing plough layer soil.
The fifth concrete implementation mode: the fourth difference between this embodiment and the specific embodiment is that: the microbial agent in the step one is a phosphorus-dissolving growth-promoting microbial agent. Other steps and parameters are the same as those in the fourth embodiment.
The microbial agent is a phosphorus-dissolving growth-promoting microbial agent and is from the biological science and technology limited company of Zhenzhen of Meike of Shandong, wherein the bacillus subtilis is more than or equal to 2.0 hundred million/mL, and the extracellular polysaccharide is more than or equal to 1.0 mg/mL.
The sixth specific implementation mode: the fourth difference between this embodiment and the specific embodiment is that: the microbial fertilizer in the step one is a potassium fulvate high-potassium type. Other steps and parameters are the same as those in the fourth embodiment.
The microbial fertilizer is a potassium fulvate high-potassium type, is produced by Jinan Zhongjie biotechnology limited, and is more than or equal to 50 percent of fulvic acid, more than or equal to 70 percent of organic matter, more than or equal to 10 percent of organic potassium and 100 percent of total solubility.
The seventh embodiment: the integrated homogeneous improvement method for the modifier for the soda saline-alkali land rice field is carried out according to the following steps:
firstly, preparing a modifier: weighing 5 parts of polymeric ferric sulfate, 2 parts of aluminum sulfate, 2 parts of calcium nitrate and 1 part of microbial fertilizer according to the weight part ratio, and mixing the mixture with water according to the weight part ratio of 1:1 to obtain a liquid modifying agent;
secondly, irrigating and field soaking: injecting the liquid modifying agent into a rice field of the soda saline-alkali soil after rotary tillage and soil preparation along with irrigation water, soaking the rice field for 7 days, wherein the using amount of the liquid modifying agent is 2-6 tons/hectare;
thirdly, harrowing and salt washing: harrowing the rice field in the third step, and draining water after precipitating overnight; then the liquid modifying agent is injected into the rice field for cleaning, namely the liquid modifying agent is injected into the rice field along with new irrigation water, a weeding machine is used for harrowing, and water is drained after the precipitation is carried out overnight; the cleaning is repeated for 4 times, and the dosage of the liquid modifier is 5 tons/hectare each time;
fourthly, alkali reduction and fertilizer cultivation: planting rice seedlings in the rice field after harrowing and salt washing, and respectively irrigating by using the liquid modifying agent for 3 times when the rice is in the green turning stage and the early tillering stage, wherein the dosage of the liquid modifying agent is 5 tons/hectare each time, and sealing for 2 days after irrigation to discharge, thus finishing the improvement of the soda saline-alkali land rice field.
When the components in the first step of the embodiment are mixed, the components are properly stirred to completely dissolve aluminum sulfate and calcium nitrate particles, and the solution is uniformly mixed. Wherein, the polymeric ferric sulfate of the embodiment is liquid polymeric ferric sulfate, purchased from Yingkou xing industry chemical Co., Ltd, has the total iron content of more than or equal to 20.0 percent and the pH value of 2.0-3.0; aluminum sulfate is aluminum sulfate powder purchased from jin gong chemical company, limited, of Jinzhou city; calcium nitrate is calcium nitrate granules purchased from galleries Peng color fine chemical Co., Ltd, fertilizer grade; the microbial fertilizer is a potassium fulvate high-potassium type, is produced by Jinan Zhongjie biotechnology limited, and is more than or equal to 50 percent of fulvic acid, more than or equal to 70 percent of organic matter, more than or equal to 10 percent of organic potassium and 100 percent of total solubility.
The rotary tillage and soil preparation in the second step of the embodiment are carried out according to the conventional farming habit, wherein the rice field is a severe saline-alkali land rice field (the pH of the soil is more than or equal to 9.0), rotary tillage is carried out in spring, mainly shallow tillage, and the tillage depth is not more than 20 cm.
In the second step of the embodiment, the liquid modifying agent is uniformly dissolved in the sunning water pool and is injected into the field along with the irrigation water, or is uniformly injected into the irrigation water along with the water flow to soak the field, and shallow irrigation is suitable for deep ploughing.
In the third step of the embodiment, the harrowing is carried out by disturbing the harrows for 1 time, precipitating for 1 night, and then draining to wash salt and alkali; harrowing with a cultivator, harrowing and settling, then continuously draining water, and draining water and washing salt for medium and heavy paddy fields for 4 times.
The alkali-reducing fertilization of the fourth step of the embodiment plants rice seedlings in the rice field after harrowing and salt-washing by performing operations such as fertilization, rice transplanting, pesticide spraying and the like according to conventional cultivation, adding irrigation containing a modifier in the green turning period and the early tillering period, and discharging in a sealed manner after irrigation, thereby playing a role in salt-washing and alkali-reducing and being beneficial to fertilizing plough layer soil.
In 2019, the rice field soil is improved by the implementation mode at the Daan alkali land ecological test station of Chinese academy of sciences, the pH of the rice field soil before improvement is about 9.5, the salinity conductivity is 0.68mS/cm, the rice field soil belongs to severe soda saline-alkali soil, the pH of the rice field soil after improvement is reduced to about 8.8, the salinity conductivity is reduced to 0.35-0.40mS/cm, and the yield of paddy is increased by 20-50%. The embodiment well realizes the improvement of the severe soda saline-alkali soil and achieves the aim of integrated homogeneous improvement.
The specific implementation mode is eight: the integrated homogeneous improvement method for the modifier for the soda saline-alkali land rice field is carried out according to the following steps:
firstly, preparing a modifier: weighing 5 parts of polymeric ferric sulfate, 2 parts of aluminum sulfate, 2 parts of calcium nitrate and 1 part of microbial agent according to the weight part ratio, and mixing the mixture with water according to the weight part ratio of 1:1 to obtain a liquid modifying agent;
secondly, irrigating and field soaking: injecting the liquid modifying agent into a rice field of the soda saline-alkali soil after rotary tillage and soil preparation along with irrigation water, soaking the rice field for 7 days, wherein the using amount of the liquid modifying agent is 2-6 tons/hectare;
thirdly, harrowing and salt washing: harrowing the rice field in the third step, and draining water after precipitating overnight; then the liquid modifying agent is injected into the rice field for cleaning, namely the liquid modifying agent is injected into the rice field along with new irrigation water, a weeding machine is used for harrowing, and water is drained after the precipitation is carried out overnight; the cleaning is repeated for 4 times, and the dosage of the liquid modifier is 5 tons/hectare each time;
fourthly, alkali reduction and fertilizer cultivation: planting rice seedlings in the rice field after harrowing and salt washing, and respectively irrigating by using the liquid modifying agent for 3 times when the rice is in the green turning stage and the early tillering stage, wherein the dosage of the liquid modifying agent is 5 tons/hectare each time, and sealing for 2 days after irrigation to discharge, thus finishing the improvement of the soda saline-alkali land rice field.
When the components in the first step of the embodiment are mixed, the components are properly stirred to completely dissolve aluminum sulfate and calcium nitrate particles, and the solution is uniformly mixed. Wherein, the polymeric ferric sulfate of the embodiment is liquid polymeric ferric sulfate, purchased from Yingkou xing industry chemical Co., Ltd, has the total iron content of more than or equal to 20.0 percent and the pH value of 2.0-3.0; aluminum sulfate is aluminum sulfate powder purchased from jin gong chemical company, limited, of Jinzhou city; calcium nitrate is calcium nitrate granules purchased from galleries Peng color fine chemical Co., Ltd, fertilizer grade; the microbial agent is a phosphorus-dissolving growth-promoting microbial agent and is from the biological science and technology limited company of Zhenzhen of Meike of Shandong, wherein the bacillus subtilis is more than or equal to 2.0 hundred million/mL, and the extracellular polysaccharide is more than or equal to 1.0 mg/mL.
The rotary tillage and soil preparation in the second step of the embodiment are carried out according to the conventional farming habit, wherein the rice field is a severe saline-alkali land rice field (the pH of the soil is more than or equal to 9.0), rotary tillage is carried out in spring, mainly shallow tillage, and the tillage depth is not more than 20 cm.
In the second step of the embodiment, the liquid modifying agent is uniformly dissolved in the sunning water pool and is injected into the field along with the irrigation water, or is uniformly injected into the irrigation water along with the water flow to soak the field, and shallow irrigation is suitable for deep ploughing.
In the third step of the embodiment, the harrowing is carried out by disturbing the harrows for 1 time, precipitating for 1 night, and then draining to wash salt and alkali; harrowing with a cultivator, harrowing and settling, then continuously draining water, and draining water and washing salt for medium and heavy paddy fields for 4 times.
The alkali-reducing fertilization of the fourth step of the embodiment plants rice seedlings in the rice field after harrowing and salt-washing by performing operations such as fertilization, rice transplanting, pesticide spraying and the like according to conventional cultivation, adding irrigation containing a modifier in the green turning period and the early tillering period, and discharging in a sealed manner after irrigation, thereby playing a role in salt-washing and alkali-reducing and being beneficial to fertilizing plough layer soil.
Example 1
In 2019, a contrast test of different improvement modes of the paddy soil is carried out at an ecological test station of Daan alkaline land of Chinese academy of sciences, the pH of the paddy soil before improvement is about 9.5, the salinity conductivity is 0.68mS/cm, the paddy soil belongs to severe soda saline-alkali soil, the paddy rice varieties tested and cultivated are unified to local main-pushed saline-alkali resistant variety Donggao No. 4, and the cultivation and field management are unified.
The first group is a treatment group, i.e., soil is improved and rice is planted by the method of embodiment eight.
The second group is a comparative improved group A, phosphogypsum 30t/ha is uniformly scattered on the ground surface before rotary tillage in a paddy field (the phosphogypsum is a byproduct produced in phosphate fertilizer production in a special fertilizer plant in Dongyang Liaoning, and the dosage is the dosage recommended by local routine), and is uniformly mixed into soil of a plough layer along with ploughing and harrowing, and irrigation and drainage are carried out for the same times as the fifth embodiment without using the modifying agent of the invention.
The third group is a comparative improved group B, aluminum sulfate is uniformly scattered in the field blocks when the paddy field is soaked with 1.5t/ha, a plough layer is mixed with the harrowing field and dissolved, and equal irrigation and drainage are carried out in the fifth embodiment without using the modifying agent of the invention.
The fourth group is a control group (rice is directly planted without improving soil), the operation of other field cultivation and management is the same as the fifth embodiment without adding the modifying agent of the invention.
The four groups of tests are respectively repeated for 3 times, each repetition is an independent rice field, and the area is not less than 667m2The dosage of the respective modifying agent is calculated according to the specific area, the testing treatments are randomly arranged, and the modifying and field cultivation operations are uniformly implemented. After the rice is mature, the unified yield measurement is carried out, the soil salinization degree analysis is carried out on the plough layer soil treated by different tests, and the effects of rice yield increase and soil salinization removal are evaluated.
The results of comparing the rice yields of the test are shown in fig. 1, the results of the treatment groups (first group) are the results of the rice yields improved by the fifth embodiment, the results of the comparison groups a and B are the results of the rice yields improved by phosphogypsum and aluminum sulfate, respectively, the results of the comparison groups are the results of the rice yields not improved, the yields of the treatment groups are significantly higher than those of the comparison groups a, B and comparison groups, and the yields of the treatment groups are increased by 19.7%, 20.5% and 52.3% compared with those of the following 3 treatments, respectively. After the method disclosed by the invention is used for improving the soil of the rice field, the rice yield is obviously improved.
The results of comparing the test soil pH are shown in fig. 2, and by using the improvement method of the fifth embodiment, after 1 season of planting rice, the pH of the soil in the plough layer of the rice field is reduced by 0.66 unit compared with that before planting rice, which is equivalent to the soil improvement effect of the comparison group a and the comparison group B, and is significantly lower than that of the comparison group. Compared with a control group, the pH value of the improved soil is respectively reduced by 6.7%, 6.1% and 4.5%, and the pH value is obviously reduced when the method is used for improving the soil of the rice field.
The results of comparing the conductivity of the salt content of the soil in the test are shown in fig. 3, and by using the improvement method (treatment group) of the present invention according to the fifth embodiment, the conductivity of the salt content of the soil in the plough layer after the rice planting season is reduced by about 0.2mS/cm, and the desalting effect is slightly lower than that of the control group a, and is significantly better than that of the control group B and the control group.
From the test results shown in FIGS. 1 to 3, the modifier of the present invention has an excellent overall effect and achieves the effect of improving homogenization. By using the method for improving the paddy soil in the embodiment 1, the salinization degree of the plough layer soil is obviously reduced, the paddy yield is improved, and the labor cost for improving the paddy soil in saline-alkali soil per hectare is reduced by 400-500 yuan; the method realizes the integrated operation of rice field improvement and irrigation in soda saline-alkali soil, has strong operability, is simple and easy, greatly reduces the transportation and use cost, has obvious synergy, and has important popularization and application values for rice planting and soil improvement in soda saline-alkali soil.
Claims (2)
1. The modifier for the soda saline-alkali land rice field is characterized by comprising 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of phosphorus-dissolving growth-promoting microbial inoculum by weight; the phosphorus-dissolving growth-promoting microbial inoculum is from Shandong Mike Zhenzhi Biotech limited, wherein Bacillus subtilis is more than or equal to 2.0 hundred million/mL, and exopolysaccharide is more than or equal to 1.0 mg/mL.
2. The method for integrated homogeneous improvement of a soda saline-alkali soil paddy field improving agent as claimed in claim 1, wherein the method for integrated homogeneous improvement of a soda saline-alkali soil paddy field improving agent is carried out according to the following steps:
firstly, preparing a modifier: weighing 4-6 parts of polyferric sulfate, 1-3 parts of aluminum sulfate, 1-3 parts of calcium nitrate and 0.5-1.5 parts of phosphorus-dissolving growth-promoting microbial inoculum according to the weight part ratio, mixing the mixture with water according to the weight part ratio of 1: 0.8-1.2 to obtain a liquid modifying agent, wherein the phosphorus-dissolving growth-promoting microbial inoculum is from Shandong Mieke Zhenzhen Biotech limited company, bacillus subtilis is more than or equal to 2.0 hundred million/mL, and exopolysaccharide is more than or equal to 1.0 mg/mL;
secondly, irrigating and field soaking: injecting the liquid modifying agent into a rice field of the soda saline-alkali soil after rotary tillage and soil preparation along with irrigation water, soaking the rice field for 5-10 days, wherein the using amount of the liquid modifying agent is 2-6 tons/hectare;
thirdly, harrowing and salt washing: harrowing the rice field in the third step, and draining water after precipitating overnight; then the liquid modifying agent is injected into the rice field for cleaning, namely the liquid modifying agent is injected into the rice field along with new irrigation water, a weeding machine is used for harrowing, and water is drained after the precipitation is carried out overnight; repeatedly washing for 2-4 times, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time;
fourthly, alkali reduction and fertilizer cultivation: and (2) planting rice seedlings in the rice field after harrowing and salt washing, and respectively irrigating by using a liquid modifying agent for 2-3 times when the rice is in a green turning stage and a tillering initial stage, wherein the dosage of the liquid modifying agent is 2-6 tons/hectare each time, and sealing for 1-2 days after irrigation to discharge, so that the improvement of the soda saline-alkali land rice field is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458077.3A CN113174267B (en) | 2021-04-27 | 2021-04-27 | Soda saline-alkali land rice field modifier and integrated homogeneous modification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458077.3A CN113174267B (en) | 2021-04-27 | 2021-04-27 | Soda saline-alkali land rice field modifier and integrated homogeneous modification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113174267A CN113174267A (en) | 2021-07-27 |
| CN113174267B true CN113174267B (en) | 2022-03-25 |
Family
ID=76926466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110458077.3A Active CN113174267B (en) | 2021-04-27 | 2021-04-27 | Soda saline-alkali land rice field modifier and integrated homogeneous modification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113174267B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114600711A (en) * | 2022-03-23 | 2022-06-10 | 中国农业科学院农田灌溉研究所 | Planting method of saline-alkali farmland crops |
| CN116508432A (en) * | 2022-09-08 | 2023-08-01 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | System and method for recycling water-removing circular ditch of saline-alkali soil paddy field |
| CN116941368A (en) * | 2023-07-26 | 2023-10-27 | 山东君德生态科技有限公司 | Preparation method of soil restoration and salt-resistant growth-promoting microbial agent |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150490A (en) * | 2010-12-23 | 2011-08-17 | 暨南大学 | Method for modifying soda alkalized soil into paddy field by inorganic macromolecular soil modifier |
| CN102517027A (en) * | 2011-12-02 | 2012-06-27 | 暨南大学 | Modifying agent for soda-alkalized paddy field soil |
| CN106753403A (en) * | 2016-12-08 | 2017-05-31 | 北京华荟生态科技有限公司 | A kind of alkaline land modifying agent and salt-soda soil comprehensive improvement technique |
| CN107896542A (en) * | 2017-11-13 | 2018-04-13 | 中国科学院东北地理与农业生态研究所 | The modification method of fast lifting salt-soda soil paddy field soil organic matter |
| CN110055084A (en) * | 2019-06-04 | 2019-07-26 | 北京中农煦丰生态科技有限公司 | A kind of soda alkaline land paddy field soil modifying agent and preparation method thereof |
-
2021
- 2021-04-27 CN CN202110458077.3A patent/CN113174267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150490A (en) * | 2010-12-23 | 2011-08-17 | 暨南大学 | Method for modifying soda alkalized soil into paddy field by inorganic macromolecular soil modifier |
| CN102517027A (en) * | 2011-12-02 | 2012-06-27 | 暨南大学 | Modifying agent for soda-alkalized paddy field soil |
| CN106753403A (en) * | 2016-12-08 | 2017-05-31 | 北京华荟生态科技有限公司 | A kind of alkaline land modifying agent and salt-soda soil comprehensive improvement technique |
| CN107896542A (en) * | 2017-11-13 | 2018-04-13 | 中国科学院东北地理与农业生态研究所 | The modification method of fast lifting salt-soda soil paddy field soil organic matter |
| CN110055084A (en) * | 2019-06-04 | 2019-07-26 | 北京中农煦丰生态科技有限公司 | A kind of soda alkaline land paddy field soil modifying agent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 宁夏中部干旱区定位培肥对耕地土壤微生物的影响;牛红霞;《宁夏农林科技》;20151231;第56卷(第3期);第3.2节 * |
| 枯草芽孢杆菌对盐碱土面蒸发及水盐分布的影响;侯亚玲等;《水土保持学报》;20180430;第32卷(第2期);第2.4，3节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113174267A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113174267B (en) | Soda saline-alkali land rice field modifier and integrated homogeneous modification method | |
| CN109197008B (en) | Method for treating and improving saline-alkali soil | |
| CN101481281B (en) | Comprehensive treatment agent for soda alkaline land and use method thereof | |
| CN104761416A (en) | Biochemical conditioner capable of improving saline-alkali soil and preparation method thereof | |
| CN109679663A (en) | A kind of soil in protected field modifying agent and its method of administration | |
| CN107182509B (en) | Method for promoting organization of saline-alkali barren soil by utilizing compound microorganisms | |
| CN107201234A (en) | A kind of inland soda alkaline land modifying agent and application | |
| CN106242883A (en) | A kind of salt-soda soil renovation agent being suitable to plant cotton and restorative procedure | |
| CN107896542A (en) | The modification method of fast lifting salt-soda soil paddy field soil organic matter | |
| CN110557996A (en) | sustainable saline-alkali soil paddy field improvement method and mixed organic fertilizer | |
| CN107382634A (en) | A kind of environment-friendly long-life soil conditioner and preparation method thereof | |
| CN106386295A (en) | Method for planting rice in saline-alkali land of Yellow River irrigation district | |
| CN112088607A (en) | Saline-alkali soil improvement method and application thereof | |
| CN107087451B (en) | method for improving severe soda saline-alkali soil | |
| CN110105967A (en) | A kind of beach saline-alkali ground paddy field soil modifying agent and preparation method thereof | |
| CN107432131B (en) | Saline-alkali soil improvement method | |
| CN107567744B (en) | Method for preventing and treating secondary salinization of greenhouse soil | |
| CN113287385A (en) | Method for improving soda saline-alkali soil by forming hydrotalcite-like compound in soil | |
| CN1238467C (en) | Saline-alkaline land modifier | |
| CN106905052A (en) | Heavy metal pollution alkaline land modifying agent and saline and alkali land improvement method comprising spent bleaching clay | |
| CN110078576A (en) | Butcher the method with breeding waste sewage and dead livestock and poultry straw biogas residue biogas slurry production improvement salt-soda soil mushy stage biological organic fertilizer | |
| CN113412697B (en) | Improvement method of saline-alkali soil | |
| CN108040523A (en) | A kind of method for using complex microorganism saline and alkaline lean soil being promoted to organise | |
| CN108085008A (en) | Hardened reclamation of salinep-alkali soil material and modification method based on structure local microenvironment | |
| CN106831266A (en) | Heavy metal pollution alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |