CN114605193A - Preparation method and application of composite liquid silicon fertilizer - Google Patents

Preparation method and application of composite liquid silicon fertilizer Download PDF

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Publication number
CN114605193A
CN114605193A CN202210293125.2A CN202210293125A CN114605193A CN 114605193 A CN114605193 A CN 114605193A CN 202210293125 A CN202210293125 A CN 202210293125A CN 114605193 A CN114605193 A CN 114605193A
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diatomite
fertilizer
liquid
diatom
silicon fertilizer
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Inventor
丁杰航
李凯霖
吴雨峻
袁飞
鄢文磊
饶劲松
张育新
代楠
戴兴健
唐露
蒋洁
徐素宇
付白斗
李博
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Chongqing University
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Chongqing University
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B7/00Fertilisers based essentially on alkali or ammonium orthophosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/20Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/60Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G5/00Fertilisers characterised by their form
    • C05G5/20Liquid fertilisers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Abstract

The invention belongs to the technical field of agricultural fertilizers, and particularly relates to a preparation method and application of a composite liquid silicon fertilizer. The composite liquid silicon fertilizer comprises: 40 wt% of diatomite treatment liquid, 30 wt% of diatomite liquid and 30 wt% of organic liquid fertilizer. The composite liquid silicon fertilizer designed by the invention exerts the effect which cannot be achieved by simply using the diatomite to manufacture the silicon fertilizer. By adopting the active diatom composition, the problem that the original active sites such as hydroxyl and the like on the surface of the diatomite and the unique biological micropore performance are gradually reduced along with the deposition age is solved, a symbiotic small ecological system can be formed with crops such as rice and the like, and ecological sustainable development is promoted.

Description

Preparation method and application of composite liquid silicon fertilizer
Technical Field
The invention belongs to the technical field of agricultural fertilizers, and particularly relates to a preparation method and application of a composite liquid silicon fertilizer.
Background
A large number of research results show that silicon is an indispensable element for normal growth and development of crops such as rice, wheat, corn, soybean, peanut and the like. Is a fourth element needed by plants after nitrogen, phosphorus and potassium, and the silicon plays an important role in the yield, quality and safety of crops. The silicon can increase the surface area and chloroplast content of the plant, thereby promoting the photosynthesis phosphorylation, inhibiting the transpiration in the plant body, relieving the wilting caused by excessive water loss under the strong light, improving the drought resistance and water retention capacity of the plant, improving the water utilization rate, enhancing the enzyme activity of an antioxidant system of the plant, and further improving the yield of the plant; secondly, silicon is used as an important component of plant cell walls, has higher affinity with pectic acid, polyuronic acid, glycolipid and other substances in the plant body, can form a monosilicic acid compound and a bisilicic acid compound with strong stability and low solubility, and can be deposited in lignified cell walls, so that the mechanical strength and stability of tissues are enhanced, the invasion of plant diseases and insect pests is resisted, the cell walls of the stems are thickened, the vascular bundles are thickened, the lodging resistance is enhanced, the yield of crops is effectively improved, and the quality is improved; moreover, researches show that the application of the calcium silicon fertilizer can effectively reduce the absorption of cadmium and lead in the soil by the rice, effectively reduce the toxic action of some heavy metals in the soil and reduce the toxicity to the rice. Therefore, the increased application of silicon fertilizer has become an important technology for agricultural production.
Silicon fertilizers for supplementing silicon for plants are available on the market, and the silicon fertilizers on the market mainly comprise slag silicon fertilizers and high-efficiency silicon fertilizers (prepared by taking quartz sand powder as a raw material and sodium carbonate or sodium carbonate through high-temperature melting processing). Currently, there have been few attempts to produce silicon fertilizer using diatomaceous earth. Diatomaceous earth is a biogenetic silicalite composed of siliceous remains of diatoms and other microorganisms, and has sio as main component2Is an important non-metal mineral resource in China. Diatomite has excellent properties of light weight, large porosity, large specific surface area, strong adsorbability, good thermal stability, high melting point, corrosion resistance and the like, and is widely used as a filter aid, a functional filler, a catalyst carrier, a drug carrier, an adsorbent, a heat preservation and insulation material and the like. Diatomaceous earth is also widely used in agriculture in various fields based on its excellent properties and the like. For example, it is used as a natural adsorbent for fixing the migration of pollutants, especially heavy metal ions and the like in soil and preventing the pollutants from entering crop seeds; as an insecticide, for killing part of pests; the soil additive can improve the fertilizer and water retention of soil. However, there are some problems with the diatomite-based silicon fertilizer: firstly, the purity of the diatomite is not high, the natural diatomite quality in China is generally low, the mass content of SiO2 is about 60-70%, and purification can be carried out; secondly, the main active ingredient of the diatomite is diatomite, and through long-term geological processes for thousands of years, the original active sites such as hydroxyl and the like on the surface of the diatomite and the unique active sitesThe microporosity of the diatomite gradually disappears, and the whole structure is converted from complete amorphous to weak crystallization, so that the surface active site, the pore volume/specific surface area and the like of the diatomite are reduced, the characteristics of adsorption, loading and the like of the diatomite are greatly inhibited, and the effects of the diatomite on the growth of rice crops, the soil restoration and protection and the like cannot be fully exerted. Therefore, the common diatomite modification method for preparing the silicon fertilizer is high in cost and complex in operation or generates great harm to the environment.
In conclusion, most of silicon fertilizers on the market are used for supplementing plant silicon elements, the effect is single, the fertilizing steps of farmers become more complicated and complicated on the original basis, and the efficiency is reduced; secondly, the original active sites such as hydroxyl and the like on the surface of the kieselguhr in the silicon fertilizer manufactured by the kieselguhr at present and the unique microporosity of the organisms gradually disappear, so that the surface active sites, the pore volume/specific surface area and the like are reduced, the characteristics of adsorption, loading and the like of the kieselguhr are greatly inhibited, and the cost of the method for modifying the kieselguhr is high.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention firstly proposes to utilize living diatom to improve the influence caused by the reduction of surface active sites and pore volume/specific surface area of the kieselguhr, thereby enhancing the adsorption and loading characteristics of the kieselguhr. On the basis, a plurality of organic fertilizers can be loaded to combine a simple, convenient and efficient compound diatomite-based liquid silicon fertilizer, so that the growth of crops and the fertility restoration of soil are further promoted. The invention of the liquid silicon fertilizer using the active diatom compound kieselguhr is not reported.
The invention provides a preparation method of a composite liquid silicon fertilizer, which comprises the following steps:
A. preparing a diatomite treatment solution: calcining the diatomite, grinding the diatomite to ensure that the particle size of the diatomite is 150-300 meshes, soaking the diatomite by using an alkali solution to form a suspension, carrying out solid-liquid separation after 12-24 hours of reaction to obtain a separation solution, adding EDTA into the separation solution, and adjusting the pH value of the solution to 8-10 to obtain a diatomite treatment solution;
wherein the volume ratio of the mass of the diatomite to the alkali liquor and the EDTA is 1 g: 10 ml: 1 ml;
the molar weight of the alkali is based on the molar weight of hydroxide radical;
B. preparing diatom liquid:
preparing nutrient solution for culturing diatom by using 9 parts by mass of potassium silicate, 2 parts by mass of disodium hydrogen phosphate and 89 parts by mass of seawater according to a proportion, then inoculating diatom thallus and enabling the thallus to propagate in an exponential growth phase to obtain diatom bacteria liquid;
C. preparing an organic liquid fertilizer:
controlling the temperature to be about 65 ℃, and mixing natural organic matters such as animal wastes and the like with water according to the mass ratio of 1:2, adding an organic fertilizer starter (the mass is 0.2 percent of the mass of the organic matters), uniformly mixing, fermenting for 10-15 days, and diluting the fermentation liquor by 30-50 times to obtain the organic liquid fertilizer.
D. And finally, mixing the three solutions obtained in the step A, B, C according to the proportion of 40 wt% of the diatomite treatment solution, 30 wt% of the diatomite liquid and 30 wt% of the organic liquid fertilizer to form the composite liquid silicon fertilizer.
The invention provides a second aspect of the invention provides the use of the compound liquid silicon fertilizer of the first aspect for improving crop yield and adsorbing heavy metals in soil.
The technical scheme can be freely combined on the premise of no contradiction.
Compared with the prior art, the invention has the following beneficial effects:
1. the composite liquid silicon fertilizer designed by the invention exerts the effect which can not be achieved by simply using the diatomite to manufacture the silicon fertilizer. Specifically, the invention has the creativity that: (1) the defects of the diatomite are made up by introducing the living diatom, and the problems that the original active sites such as hydroxyl on the surface of the diatomite, and the like, and the unique biological micropore performance are gradually reduced along with the deposition age are solved. The diatom opal surface of living diatom contains rich active groups and high reaction activity, and the surface of the diatom opal surface is not attached by other minerals such as quartz, so that the active sites are kept intact, the pore structure is not blocked, and the specific surface area is high. Therefore, the introduction of the living diatom can improve the adsorption and loading properties of the silicon fertilizer. (2) And can also form a symbiotic small ecological system with crops such as rice and the like, thereby promoting ecological sustainable development. The solubility of the diatom opal of live diatoms is extremely high. After the diatom dies, the diatom opal is very easy to dissolve in water, and the diatom opal can be applied to the manufacture of foliar fertilizer. When the fertilizer is applied along with water, the living diatom enters the rice field and can be cultivated with crops such as rice to form a diatom-rice co-cultivation system. The two are mutually influenced and cooperatively coexist, which is beneficial to the development of ecological sustainability.
2. The experimental result of the invention shows that the composite liquid silicon fertilizer has obviously better effects on increasing the yield of rice, resisting lodging and insect pests, weakening soil degradation, reducing heavy metal pollution risk, increasing soil fertility and the like than the silicon fertilizer prepared by only using diatomite.
3. The invention provides a new idea and a new method for preparing the silicon fertilizer by using the diatomite, and the diatomite is not a complicated and polluting diatomite modification method alone, and strives to promote the development and progress of agriculture in a more environment-friendly mode.
4. The liquid silicon fertilizer can be used as a foliar fertilizer and can also be used as a fertilizer along with water, and the application range is wider than that of the traditional solid granular fertilizer. Secondly, the composite liquid silicon fertilizer is compounded with the organic liquid fertilizer, not only provides silicon element for crops, but also provides organic nutrients for the crops by utilizing the load characteristic, thereby being beneficial to reducing the fertilizing frequency of farmers, improving the working efficiency and promoting the development of novel agriculture.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to these examples. The experimental methods not specified in the examples are generally commercially available according to the conventional conditions and the conditions described in the manual, or according to the general-purpose equipment, materials, reagents and the like used under the conditions recommended by the manufacturer, unless otherwise specified. The starting materials required in the following examples and comparative examples are all commercially available.
Example 1
A preparation method of a composite liquid silicon fertilizer comprises the following steps:
A. preparing a diatomite treatment solution:
calcining 100kg of diatomite at the high temperature of 600-300 ℃, grinding the diatomite to ensure that the particle size is about 150-300 meshes, soaking the diatomite with 1000 liters of strong base solution (0.1mol/L sodium hydroxide) to form suspension, keeping the suspension for 12-24h (12 h in the embodiment) to ensure that the diatomite and the strong base solution fully react, then carrying out solid-liquid separation and taking out separation liquid (the component of the separation liquid is soluble silicate SiO3 2-) 100 liters of EDTA (1 mol/L in concentration) was added, and an acidic solution (0.1mol/L in this example) was added to adjust the pH of the separated liquid to 8 to 10.
B. Preparing diatom liquid:
preparing nutrient solution for culturing diatom by using raw materials of 9% of potassium silicate, 2% of disodium hydrogen phosphate and 89% of seawater according to a proportion, then inoculating diatom thallus, keeping sufficient illumination at 25-30 ℃, and culturing for 2-4 days to enable the diatom thallus to propagate in an exponential growth phase.
The composition of the seawater is as follows: a large amount of a macroelement such as Na+,K+,Ca2+,Mg+,Si4+,Cl-,SO4 2+,
Br-,HCO3 -Etc.; gas components dissolved in seawater such as oxygen, nitrogen, and inert gas; nutrient elements associated with marine plant growth; organic substances in seawater such as amino acids, humus, chlorophyll, etc.
C. Preparing an organic liquid fertilizer:
controlling the temperature to be about 65 ℃, and fermenting by using natural organic matters such as cow dung and the like to obtain the organic liquid fertilizer, wherein the method comprises the following specific operations: 100kg of cow dung is taken and then mixed with water, and the mass ratio of the cow dung to the water is 1: 2. Then 200g of organic fertilizer starter is added, the mixture is uniformly mixed and fermented for 10 to 15 days (10 days in the embodiment), and the fermentation liquor is diluted by 30 times to obtain the organic liquid fertilizer.
And finally, mixing the three solutions obtained in the step A, B, C according to the proportion of 40 wt% of the diatomite treatment solution, 30 wt% of the diatomite liquid and 30 wt% of the organic liquid fertilizer to form the novel liquid compound silicon fertilizer.
Comparative example 1
The liquid compound silicon fertilizer is prepared according to the method of the example 1, and the difference is only that the original diatom nutrient solution is used for replacing the diatom liquid, namely, the diatom thallus is not inoculated in the nutrient solution of the diatom.
Application example 1
The composite liquid silicon fertilizer prepared in the example 1 and the comparative example 1 is compared with the diatomite-based silicon fertilizer purchased in the market for actual rice planting effect, and the results of comparison of the rice yield increase and soil heavy metal adsorption are shown in the following table:
table 1: rice yield increasing effect comparison table
Figure BDA0003561025370000051
As can be seen from table 1 above:
1. the composite liquid silicon fertilizer of the embodiment 1 of the invention only uses half of the amount of the diatomite-based silicon fertilizer on the market, and the rice yield is increased by 16.4 percent which is far higher than 5.2 percent of the rice yield increased by the diatomite-based silicon fertilizer on the market. Therefore, the composite liquid silicon fertilizer has strong advantages on increasing the yield of rice.
2. Compared with the comparative example 1, the yield of the rice of the composite liquid silicon fertilizer in the example 1 is increased by 6.3 wt%, which shows that the living diatom thallus has rich active groups and high reaction activity, and can compensate the influence that the original active sites such as hydroxyl on the surface of the kieselguhr and the unique biological micropore performance gradually decrease along with the deposition years. Improving the loading and adsorption characteristics and promoting the yield increase of the rice.
Table 2: soil heavy metal effect comparison table
Figure BDA0003561025370000052
As can be seen from table 2:
1. after the composite liquid silicon fertilizer of the embodiment 1 is applied, the contents of heavy metals such as lead, cadmium, mercury, aluminum, arsenic and the like in the soil are all lower than those of the commercial diatomite-based silicon fertilizer, and the adsorption capacity of the composite liquid silicon fertilizer on the heavy metals in the soil is obviously higher than that of the commercial diatomite-based silicon fertilizer.
2. Compared with the comparative example 1, the soil heavy metal adsorption effect of the composite liquid silicon fertilizer in the example 1 is more obvious, which shows that after the active diatom is introduced, the adsorption performance of the diatomite can be obviously enhanced.

Claims (2)

1. The preparation method of the composite liquid silicon fertilizer is characterized by comprising the following steps:
A. preparing a diatomite treatment solution: calcining the diatomite, grinding the diatomite to ensure that the particle size of the diatomite is 150-300 meshes, soaking the diatomite by using an alkali solution to form a suspension, carrying out solid-liquid separation after 12-24 hours of reaction to obtain a separation solution, adding EDTA into the separation solution, and adjusting the pH value of the solution to 8-10 to obtain a diatomite treatment solution;
wherein the volume ratio of the mass of the diatomite to the alkali liquor and the EDTA is 1 g: 10 ml: 1 ml;
the molar weight of the alkali is based on the molar weight of hydroxide radical;
B. preparing diatom liquid:
preparing nutrient solution for culturing diatom by using 9 parts by mass of potassium silicate, 2 parts by mass of disodium hydrogen phosphate and 89 parts by mass of seawater according to a proportion, then inoculating diatom thallus and enabling the thallus to propagate in an exponential growth phase to obtain diatom bacteria liquid;
C. preparing an organic liquid fertilizer:
controlling the temperature to be about 65 ℃, and mixing organic matters and water according to the mass ratio of 1:2, mixing, adding an organic fertilizer starter, uniformly mixing, fermenting for 10-15 days, and diluting the fermentation liquor by 30-50 times to obtain an organic liquid fertilizer;
the mass of the organic fertilizer starter is 0.2% of that of the organic matters.
D. And finally, mixing the three solutions obtained in the step A, B, C according to the proportion of 40 wt% of the diatomite treatment solution, 30 wt% of the diatomite liquid and 30 wt% of the organic liquid fertilizer to form the composite liquid silicon fertilizer.
2. Use of the compound liquid silicon fertilizer according to claim 1 for improving crop yield and adsorbing heavy metals in soil.
CN202210293125.2A 2022-03-23 2022-03-23 Preparation method and application of composite liquid silicon fertilizer Pending CN114605193A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215692A (en) * 2022-08-18 2022-10-21 天津大学 Microbial diatom organic fertilizer and preparation method and application thereof
CN115717076A (en) * 2022-09-08 2023-02-28 天津大学 Preparation method and application of saline-alkali soil ecological modifier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106831272A (en) * 2016-12-30 2017-06-13 天津地天科技发展有限公司 A kind of preparation method of compound diatom speed fertilizer
CN107245011A (en) * 2017-06-09 2017-10-13 中国科学院广州地球化学研究所 A kind of diatom soil matrix siliceous fertilizer and preparation method thereof
CN107973623A (en) * 2017-11-22 2018-05-01 南昌大学 Multi-form microalgae bio-fertilizer and preparation method thereof
CN110171988A (en) * 2019-05-31 2019-08-27 广州耕读文化传播有限公司 A kind of natural concentrated type Liquid organic fertilizer and its preparation process and application
CN112358345A (en) * 2020-11-02 2021-02-12 海南大学 Biological seaweed fertilizer, bacterial liquid for biological fertilizer and preparation method of bacterial liquid
CN112521232A (en) * 2020-12-01 2021-03-19 鹤山市新的生物制品有限公司 Special diatom paste fertilizer prepared from diatom activin and preparation method and application of special diatom paste fertilizer
CN113632701A (en) * 2021-09-18 2021-11-12 中国科学院广州地球化学研究所 Application of diatom in rice planting and cultivation method for rice diatom symbiosis

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106831272A (en) * 2016-12-30 2017-06-13 天津地天科技发展有限公司 A kind of preparation method of compound diatom speed fertilizer
CN107245011A (en) * 2017-06-09 2017-10-13 中国科学院广州地球化学研究所 A kind of diatom soil matrix siliceous fertilizer and preparation method thereof
CN107973623A (en) * 2017-11-22 2018-05-01 南昌大学 Multi-form microalgae bio-fertilizer and preparation method thereof
CN110171988A (en) * 2019-05-31 2019-08-27 广州耕读文化传播有限公司 A kind of natural concentrated type Liquid organic fertilizer and its preparation process and application
CN112358345A (en) * 2020-11-02 2021-02-12 海南大学 Biological seaweed fertilizer, bacterial liquid for biological fertilizer and preparation method of bacterial liquid
CN112521232A (en) * 2020-12-01 2021-03-19 鹤山市新的生物制品有限公司 Special diatom paste fertilizer prepared from diatom activin and preparation method and application of special diatom paste fertilizer
CN113632701A (en) * 2021-09-18 2021-11-12 中国科学院广州地球化学研究所 Application of diatom in rice planting and cultivation method for rice diatom symbiosis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215692A (en) * 2022-08-18 2022-10-21 天津大学 Microbial diatom organic fertilizer and preparation method and application thereof
CN115717076A (en) * 2022-09-08 2023-02-28 天津大学 Preparation method and application of saline-alkali soil ecological modifier
CN115717076B (en) * 2022-09-08 2024-05-03 天津大学 Preparation method and application of saline-alkali soil ecological modifier

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