CN113321549A - Degraded soil conditioner for greenhouse vegetable continuous cropping land, preparation method and application - Google Patents
Degraded soil conditioner for greenhouse vegetable continuous cropping land, preparation method and application Download PDFInfo
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- CN113321549A CN113321549A CN202110667683.6A CN202110667683A CN113321549A CN 113321549 A CN113321549 A CN 113321549A CN 202110667683 A CN202110667683 A CN 202110667683A CN 113321549 A CN113321549 A CN 113321549A
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D5/00—Fertilisers containing magnesium
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- 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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- 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
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- Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention provides a degraded soil conditioner for a greenhouse vegetable continuous cropping field, a preparation method and an application, which comprises 50-70 parts of waste vegetable culture medium, 30-50 parts of peat, 3-5 parts of wood vinegar, 3-10 parts of mineral humic acid, 1-3 parts of ferrous sulfate, 4-6 parts of magnesium sulfate and 1-3 parts of photosynthetic bacteria bio-organic fertilizer; the degraded soil conditioner realizes the recycling of the waste vegetable culture medium; meanwhile, the waste vegetable culture medium and peat can make soil fluffy and improve the soil hardening problem; the soil fertility is enhanced by peat and the photosynthetic bacteria biological organic fertilizer, and the growth of vegetables is promoted; the wood vinegar is acidic, and the pH value of the soil can be adjusted after ferrous sulfate and magnesium sulfate are combined; in addition, the preparation method has the combined effects of steam sterilization and wood vinegar sterilization and insect expelling, plays the roles of sterilization and insect killing on the waste vegetable culture substrate, is simple and feasible in the whole preparation process, low in investment cost and suitable for large-area popularization.
Description
Technical Field
The invention relates to the technical field of soil improvement, in particular to a degraded soil conditioner for a greenhouse vegetable continuous cropping field, a preparation method and application.
Background
Greenhouse cultivation has the characteristics of intensive technology and intensive capital, is excellent in the aspects of improving the yield and quality of unit area and ensuring annual balanced supply of agricultural products such as vegetables, melons, fruits, flowers and the like, and becomes an important agricultural production mode in recent years. Due to the characteristics of greenhouse vegetable land fixation, strong planting technology speciality and the like, vegetable growers often continuously plant the same type of vegetables in continuous cropping for many years, and simultaneously use a large amount of chemical fertilizers and pesticides, and factors such as high temperature, high humidity, weak illumination and the like in the greenhouse cause the soil degradation of the greenhouse vegetable land, the problem of continuous cropping obstacle is prominent, the problems of soil hardening and hardening, slight salinization, nutrient imbalance, serious plant diseases and insect pests and the like occur, and the yield and the quality of crops are seriously influenced.
In addition, substrate cultivation, as a modern agricultural production mode with an intensive technology, has the advantages of high integration degree, prevention of soil-borne diseases, improvement of crop yield and quality, contribution to modernization of cultivation technology and the like, and is widely applied to vegetable cultivation in recent years. However, after a vegetable product is planted on the substrate, the physicochemical properties of the substrate can be changed to a certain extent under the influence of factors such as external environment, plant root secretion, excessive fertilization and the like, the quality of the substrate is reduced particularly obviously after the substrate is repeatedly used, and finally the quality of the grown crop does not reach the standard. Because the harmless treatment technology for the substrate with unqualified quality is not mature or the treatment cost is too high, a large amount of substrates are abandoned, and environmental pollution, resource waste and land occupation are caused.
Disclosure of Invention
In order to solve the defects of the prior art, the degraded soil conditioner for the continuous cropping land of greenhouse vegetables, the preparation method and the application are provided, so that the problems of environmental pollution and resource waste caused by a large amount of waste vegetable culture medium and the problems of low yield and poor quality of crops caused by soil degradation caused by continuous cropping of greenhouse vegetables are solved.
The degraded soil conditioner for the continuous cropping land of greenhouse vegetables is prepared from the following raw materials, by weight, 50-70 parts of waste vegetable culture medium, 30-50 parts of peat, 3-5 parts of wood vinegar, 3-10 parts of mineral humic acid, 1-3 parts of ferrous sulfate, 4-6 parts of magnesium sulfate and 1-3 parts of photosynthetic bacteria bio-organic fertilizer.
As a further improvement of the scheme, the waste vegetable culture medium is a soilless culture medium after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium comprises coconut coir, vermiculite, perlite and an organic fertilizer.
As a further improvement of the scheme, the particle size of the peat is 10-20 mm, the pH value is 5.8-6.2, the peat contains humic acid and organic matters, the mass of the humic acid in the peat accounts for more than or equal to 35% of the total mass of the peat, and the mass of the organic matters in the peat accounts for more than or equal to 40% of the total mass of the peat.
As a further improvement of the scheme, the mineral humic acid refers to humic acid extracted from weathered coal or lignite, the fineness of the mineral humic acid is more than or equal to 120 meshes, and the mass of the humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid.
As a further improvement of the scheme, the pyroligneous liquor is a derivative produced in the process of making charcoal from corn straws, and the pH value of the pyroligneous liquor is 4.9-5.2.
As a further improvement of the scheme, the number of the effective viable bacteria of the photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g, and the organic matter is more than or equal to 40 percent.
A preparation method of a degraded soil conditioner for greenhouse vegetable continuous cropping land is characterized by comprising the following steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the sterilized woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing the waste vegetable culture medium and peat according to a formula ratio to obtain a first mixture;
and 3, mixing for the second time: adding wood vinegar into the first mixture obtained in the step 2 according to a proportion, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding mineral humic acid and photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step 3 according to a certain proportion, and then uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding ferrous sulfate and magnesium sulfate into the third mixture obtained in the step (4) in proportion, and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
The application of the degraded soil conditioner for the greenhouse vegetable continuous cropping land is suitable for improving the north China calcareous soil after the greenhouse vegetable continuous cropping, and the using amount of the soil conditioner on per square meter of soil is 1.8-2.5 kg.
The invention has the beneficial effects that:
compared with the prior art, the degraded soil conditioner for the greenhouse vegetable continuous cropping land, the preparation method and the application have the following advantages:
1. the degraded soil conditioner utilizes the waste vegetable culture medium as one of the base materials, realizes the recycling of the waste vegetable culture medium, and effectively solves the problems of environmental pollution, resource waste and land occupation caused by the waste vegetable culture medium;
2. the waste vegetable culture medium and peat in the degraded soil conditioner can make soil fluffy, effectively improve the soil hardening problem and improve the soil permeability; the peat and the photosynthetic bacteria bio-organic fertilizer supplement organic matter nutrient components for the soil, and enhance the soil fertility, thereby promoting the growth of vegetables and effectively improving the content of vitamin C in the vegetables; the wood vinegar is acidic, and is neutralized with saline-alkali soil after being combined with ferrous sulfate and magnesium sulfate, so that the pH value of the soil is adjusted; in conclusion, the degraded soil conditioner can greatly improve the physical and chemical properties of degraded soil and effectively solve the problem generated after continuous cropping of the greenhouse;
3. the preparation method of the degraded soil conditioner has the combined effects of steam sterilization and wood vinegar sterilization and insect expelling, plays the roles of sterilization and insect killing on the waste vegetable culture substrate, is simple and feasible in the whole preparation process, is low in investment cost, and is suitable for large-area popularization.
Detailed Description
The present invention will be described in detail with reference to the following examples, but the scope of the present invention is not limited to the following examples.
Example 1
A degraded soil conditioner for greenhouse vegetable continuous cropping lands comprises the following specific preparation steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing 50 parts of waste vegetable culture medium and 30 parts of peat to obtain a first mixture;
and 3, mixing for the second time: adding 3 parts of pyroligneous into the first mixture obtained in the step 2, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding 3 parts of mineral humic acid and 1 part of photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step (3), and uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding 1 part of ferrous sulfate and 5 parts of magnesium sulfate into the third mixture obtained in the step (4) and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
Wherein: the waste vegetable culture medium is a soilless culture medium after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium is discarded because the vegetables cultured by the waste vegetable culture medium are subjected to more plant diseases and insect pests and the yield is reduced and can not reach the quality standard of the vegetables, and a new medium needs to be replaced if the vegetables are continuously planted; the waste vegetable culture medium comprises coconut chaff, vermiculite, perlite and organic fertilizer; peat is made of turf, the pH value is 5.8-6.2, and the mass percentage of humic acid in the peat in the total mass of the peat is more than or equal to 35%; the pyroligneous is a derivative produced in the process of preparing charcoal from corn straws, and the pH value is 4.9; the mass of humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid; the number of effective viable bacteria of photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g.
Example 2
A degraded soil conditioner for greenhouse vegetable continuous cropping lands comprises the following specific preparation steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing 70 parts of waste vegetable culture medium and 30 parts of peat to obtain a first mixture;
and 3, mixing for the second time: adding 4 parts of pyroligneous into the first mixture obtained in the step 2, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding 3 parts of mineral humic acid and 1 part of photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step (3), and uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding 1 part of ferrous sulfate and 5 parts of magnesium sulfate into the third mixture obtained in the step (4) and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
Wherein: the waste vegetable culture medium is a soilless culture medium after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium is discarded because the vegetables cultured by the waste vegetable culture medium are subjected to more plant diseases and insect pests and the yield is reduced and can not reach the quality standard of the vegetables, and a new medium needs to be replaced if the vegetables are continuously planted; the waste vegetable culture medium comprises coconut chaff, vermiculite, perlite and organic fertilizer; peat is made of turf, the pH value is 5.8-6.2, and the mass percentage of humic acid in the peat in the total mass of the peat is more than or equal to 35%; the pyroligneous is a derivative produced in the process of preparing charcoal from corn straws, and the pH value is 4.9; the mass of humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid; the number of effective viable bacteria of photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g.
Example 3
A degraded soil conditioner for greenhouse vegetable continuous cropping lands comprises the following specific preparation steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing 50 parts of waste vegetable culture medium and 50 parts of peat to obtain a first mixture;
and 3, mixing for the second time: adding 5 parts of pyroligneous into the first mixture obtained in the step 2, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding 10 parts of mineral humic acid and 3 parts of photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step 3, and uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding 3 parts of ferrous sulfate and 5 parts of magnesium sulfate into the third mixture obtained in the step (4) and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
Wherein: the waste vegetable culture medium is a soilless culture medium after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium is discarded because the vegetables cultured by the waste vegetable culture medium are subjected to more plant diseases and insect pests and the yield is reduced and can not reach the quality standard of the vegetables, and a new medium needs to be replaced if the vegetables are continuously planted; the waste vegetable culture medium comprises coconut chaff, vermiculite, perlite and organic fertilizer; peat is made of turf, the pH value is 5.8-6.2, and the mass percentage of humic acid in the peat in the total mass of the peat is more than or equal to 35%; the pyroligneous is a derivative produced in the process of preparing charcoal from corn straws, and the pH value is 4.9; the mass of humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid; the number of effective viable bacteria of photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g.
Example 4
A degraded soil conditioner for greenhouse vegetable continuous cropping lands comprises the following specific preparation steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing 70 parts of waste vegetable culture medium and 50 parts of peat to obtain a first mixture;
and 3, mixing for the second time: adding 5 parts of pyroligneous into the first mixture obtained in the step 2, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding 10 parts of mineral humic acid and 3 parts of photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step 3, and uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding 3 parts of ferrous sulfate and 5 parts of magnesium sulfate into the third mixture obtained in the step (4) and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
Wherein: the waste vegetable culture medium is a soilless culture medium after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium is discarded because the vegetables cultured by the waste vegetable culture medium are subjected to more plant diseases and insect pests and the yield is reduced and can not reach the quality standard of the vegetables, and a new medium needs to be replaced if the vegetables are continuously planted; the waste vegetable culture medium comprises coconut chaff, vermiculite, perlite and organic fertilizer; peat is made of turf, the pH value is 5.8-6.2, and the mass percentage of humic acid in the peat in the total mass of the peat is more than or equal to 35%; the pyroligneous is a derivative produced in the process of preparing charcoal from corn straws, and the pH value is 4.9; the mass of humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid; the number of effective viable bacteria of photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g.
The soil improvement effect of the soil conditioner prepared in examples 1 to 4 was verified:
1. test principle and conditions: the test is provided with a blank control group without the modifier and the test groups of examples 1-4, and the blank control group and the test groups are repeated for 3 times; the vegetable varieties, sowing times, environments and periods were identical in all blank control groups and experimental groups.
2. The test method comprises the following steps:
selecting pakchoi as a vegetable to be tested;
secondly, uniformly scattering the modifying agent prepared in the examples 1-4 in a test field for 15 days before the transplanting of the pakchoi at one time according to the dosage of 1200kg per mu, and carrying out ploughing treatment;
planting pakchoi in the test field, and strictly ensuring that the watering time and the watering amount are the same;
and fourthly, recording and calculating the yield of each group of pakchoi, respectively taking a soil sample with the depth of 0-20 cm after the pakchoi is applied for 30 days, and measuring the content of each index in the soil sample by using the same method, wherein the obtained test result is shown in the following table.
3. Test data
TABLE 1 influence of the conditioner prepared in the example on the physicochemical properties of the soil and the yield of pakchoi
4. Analysis of test data
Compared with the control group, after the conditioner prepared in the examples 1 to 4 is applied, the volume weight of soil is obviously reduced, the pH of the soil is reduced, and the content of organic matters in the soil is improved by 27.67 to 41.02 percent compared with the control group, so that the physical properties of the greenhouse soil are effectively improved, and the soil fertility and the fresh weight average of pakchoi are improved after the conditioner prepared in the examples 1 to 4 is applied to the greenhouse soil; in addition, the soil conditioner prepared in the examples 1-4 can obviously improve the yield and the quality of the tested vegetables, the total yield per unit area of the pakchoi planted after the soil conditioner prepared in the examples 1-4 is applied is increased by 40.90-68.17% compared with that of a control group, and the income per mu is increased by 6937-11561 yuan.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.
Claims (8)
1. A degraded soil conditioner for greenhouse vegetable continuous cropping land is characterized in that: the biological organic fertilizer is prepared from the following raw materials, by weight, 50-70 parts of waste vegetable culture medium, 30-50 parts of peat, 3-5 parts of wood vinegar, 3-10 parts of mineral humic acid, 1-3 parts of ferrous sulfate, 4-6 parts of magnesium sulfate and 1-3 parts of photosynthetic bacteria biological organic fertilizer.
2. The degraded soil conditioner for greenhouse vegetable continuous cropping lands as claimed in claim 1, characterized in that: the waste vegetable culture medium is a soilless culture medium obtained after 3-4 crops of vegetables are cultured, and the waste vegetable culture medium comprises coconut coir, vermiculite, perlite and an organic fertilizer.
3. The degraded soil conditioner for greenhouse vegetable continuous cropping lands as claimed in claim 1, characterized in that: the particle size of the peat is 10-20 mm, the pH value is 5.8-6.2, the peat contains humic acid and organic matters, the mass of the humic acid in the peat accounts for more than or equal to 35% of the total mass of the peat, and the mass of the organic matters in the peat accounts for more than or equal to 40% of the total mass of the peat.
4. The degraded soil conditioner for greenhouse vegetable continuous cropping lands as claimed in claim 1, characterized in that: the mineral humic acid is humic acid extracted from weathered coal or lignite, the fineness of the mineral humic acid is more than or equal to 120 meshes, and the mass of the humic acid in the mineral humic acid accounts for 40-50% of the total mass of the mineral humic acid.
5. The degraded soil conditioner for greenhouse vegetable continuous cropping lands as claimed in claim 1, characterized in that: the pyroligneous is a derivative produced in the process of preparing charcoal from corn straws, and the pH value of the pyroligneous is 4.9-5.2.
6. The degraded soil conditioner for greenhouse vegetable continuous cropping lands as claimed in claim 1, characterized in that: the number of effective viable bacteria of photosynthetic bacteria in the photosynthetic bacteria bio-organic fertilizer is more than or equal to 1 hundred million/g, and the organic matter is more than or equal to 40 percent.
7. The preparation method of the degraded soil conditioner for the greenhouse vegetable continuous cropping land as claimed in any one of claims 1 to 6, characterized in that the method comprises the following steps:
step 1, pretreatment: filling the waste vegetable culture medium into a woven bag; then, filling the woven bag filled with the waste vegetable culture medium into a steam sterilization container, introducing water vapor into the steam sterilization container for 18-24 hours for sterilization, then taking out the sterilized woven bag filled with the waste vegetable culture medium, cooling and airing for later use;
step 2, mixing for the first time: uniformly mixing the waste vegetable culture medium and peat according to a formula ratio to obtain a first mixture;
and 3, mixing for the second time: adding wood vinegar into the first mixture obtained in the step 2 according to a proportion, and uniformly mixing to obtain a second mixture;
step 4, mixing for the third time: adding mineral humic acid and photosynthetic bacteria bio-organic fertilizer into the second mixture obtained in the step 3 according to a certain proportion, and then uniformly mixing to obtain a third mixture;
step 5, mixing for the fourth time: and (4) adding ferrous sulfate and magnesium sulfate into the third mixture obtained in the step (4) in proportion, and uniformly mixing to obtain the degraded soil conditioner of the greenhouse vegetable continuous cropping land.
8. The application of the degraded soil conditioner for the continuous cropping land of greenhouse vegetables as claimed in any one of claims 1 to 6, wherein: the soil conditioner is suitable for improving the lime soil in North China after continuous cropping of greenhouse vegetables, and the using amount of the soil conditioner on per square meter of soil is 1.8-2.5 kg.
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Citations (4)
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|---|---|---|---|---|
| JPH10292170A (en) * | 1997-04-18 | 1998-11-04 | San Art Exterior:Kk | Soil conditioner |
| CN104072321A (en) * | 2014-07-11 | 2014-10-01 | 河北民族师范学院 | Soil conditioner and preparation method thereof |
| CN107935772A (en) * | 2017-12-05 | 2018-04-20 | 山东省农业科学院农业资源与环境研究所 | One kind resists hardened soil conditioner and preparation method thereof |
| CN109354556A (en) * | 2018-12-05 | 2019-02-19 | 兴安盟博川农业科技有限公司 | A kind of composite conditioner and the preparation method and application thereof for improveing alkaline land soil |
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2021
- 2021-06-16 CN CN202110667683.6A patent/CN113321549A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10292170A (en) * | 1997-04-18 | 1998-11-04 | San Art Exterior:Kk | Soil conditioner |
| CN104072321A (en) * | 2014-07-11 | 2014-10-01 | 河北民族师范学院 | Soil conditioner and preparation method thereof |
| CN107935772A (en) * | 2017-12-05 | 2018-04-20 | 山东省农业科学院农业资源与环境研究所 | One kind resists hardened soil conditioner and preparation method thereof |
| CN109354556A (en) * | 2018-12-05 | 2019-02-19 | 兴安盟博川农业科技有限公司 | A kind of composite conditioner and the preparation method and application thereof for improveing alkaline land soil |
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| 高丽红: "《无土栽培学》", 28 February 2017, 中国农业大学出版社 * |
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Application publication date: 20210831 |