CN114524699A - Soil conditioner and preparation method thereof - Google Patents
Soil conditioner and preparation method thereof Download PDFInfo
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- CN114524699A CN114524699A CN202210058293.3A CN202210058293A CN114524699A CN 114524699 A CN114524699 A CN 114524699A CN 202210058293 A CN202210058293 A CN 202210058293A CN 114524699 A CN114524699 A CN 114524699A
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- 239000003516 soil conditioner Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 239000002689 soil Substances 0.000 claims abstract description 63
- 239000004575 stone Substances 0.000 claims abstract description 50
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 38
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 38
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 235000015170 shellfish Nutrition 0.000 claims abstract description 36
- 239000000047 product Substances 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 150000003839 salts Chemical class 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 25
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 25
- 241000923606 Schistes Species 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 19
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 claims abstract description 19
- 229940052299 calcium chloride dihydrate Drugs 0.000 claims abstract description 19
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 19
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 19
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 19
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 19
- 239000011684 sodium molybdate Substances 0.000 claims abstract description 19
- 235000015393 sodium molybdate Nutrition 0.000 claims abstract description 19
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 69
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 241000237509 Patinopecten sp. Species 0.000 claims description 42
- 235000020637 scallop Nutrition 0.000 claims description 42
- 235000002639 sodium chloride Nutrition 0.000 claims description 26
- 238000001354 calcination Methods 0.000 claims description 24
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 23
- 239000000052 vinegar Substances 0.000 claims description 23
- 235000021419 vinegar Nutrition 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 21
- 239000000706 filtrate Substances 0.000 claims description 20
- 239000013535 sea water Substances 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 18
- 239000003814 drug Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 235000010216 calcium carbonate Nutrition 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000012267 brine Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 4
- VNSBYDPZHCQWNB-UHFFFAOYSA-N calcium;aluminum;dioxido(oxo)silane;sodium;hydrate Chemical compound O.[Na].[Al].[Ca+2].[O-][Si]([O-])=O VNSBYDPZHCQWNB-UHFFFAOYSA-N 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 229910021487 silica fume Inorganic materials 0.000 claims description 2
- 239000002364 soil amendment Substances 0.000 claims 3
- 235000016709 nutrition Nutrition 0.000 abstract description 16
- 230000035764 nutrition Effects 0.000 abstract description 14
- 239000013589 supplement Substances 0.000 abstract description 11
- 238000012271 agricultural production Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 235000015097 nutrients Nutrition 0.000 description 20
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 18
- 229960005069 calcium Drugs 0.000 description 18
- 239000011575 calcium Substances 0.000 description 18
- 229910052791 calcium Inorganic materials 0.000 description 18
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 13
- 239000011591 potassium Substances 0.000 description 13
- 229910052700 potassium Inorganic materials 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 230000012010 growth Effects 0.000 description 12
- 239000002366 mineral element Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 8
- 230000035558 fertility Effects 0.000 description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000001737 promoting effect Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 235000015816 nutrient absorption Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000003643 Callosities Diseases 0.000 description 1
- 241001057636 Dracaena deremensis Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- FYYHWMGAXLPEAU-OUBTZVSYSA-N magnesium-25 atom Chemical compound [25Mg] FYYHWMGAXLPEAU-OUBTZVSYSA-N 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/02—Fertilisers containing other nitrates containing sodium or potassium nitrate
Abstract
The invention provides a soil conditioner and a preparation method thereof, and relates to the technical field of soil improvement. The soil conditioner comprises the following raw materials in percentage by weight: 10-30% of phyllite, 10-25% of schist, 10-25% of mica, 10-25% of silicon powder, 15-25% of beili stone processing liquid, 1-3% of salt, 6-10% of calcium carbonate, 1-3% of sodium molybdate, 3-10% of potassium nitrate, 9-15% of calcium chloride dihydrate and 5-10% of magnesium chloride; it can supplement soil nutrition and improve crop yield. A preparation method of a soil conditioner comprises the following steps: preparing a shellfish fossil processing liquid and preparing a finished product; the method has simple flow, and the prepared product has good use effect and is beneficial to agricultural production.
Description
Technical Field
The invention relates to the technical field of soil improvement, in particular to a soil conditioner and a preparation method thereof.
Background
The soil improvement refers to a series of technical measures for removing or preventing adverse factors influencing crop growth and causing soil degradation, improving soil properties, improving soil fertility and creating good soil environmental conditions for crops by applying theories and technologies of multiple subjects such as soil science, biology, ecology and the like. During the long-term planting and production activities of the soil, nutrient components contained in the soil gradually run off, the quality of the soil is reduced, and the yield of crops is reduced.
Disclosure of Invention
The invention aims to provide a soil conditioner which can supplement soil nutrition and improve crop yield.
The invention also aims to provide a preparation method of the soil conditioner, the method has simple flow, and the prepared product has good use effect and is beneficial to agricultural production.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
On one hand, the embodiment of the invention provides a soil conditioner, which comprises the following raw materials in percentage by weight: 10-30% of phyllite, 10-25% of schist, 10-25% of mica, 10-25% of silicon powder, 15-25% of beili stone processing liquid, 1-3% of salt, 6-10% of calcium carbonate, 1-3% of sodium molybdate, 3-10% of potassium nitrate, 9-15% of calcium chloride dihydrate and 5-10% of magnesium chloride.
On the other hand, the embodiment of the invention provides a preparation method of a soil conditioner, which comprises the following steps:
preparing a shell fossil processing liquid: preparing shell fossil, white vinegar, citric acid, hypophosphorous acid and seawater salt water according to a ratio, calcining and crushing the shell fossil, sequentially adding the citric acid and the hypophosphorous acid into the white vinegar while stirring, heating, slowly adding the crushed shell fossil for reaction, filtering after the reaction is finished to obtain filtrate, and adding the seawater salt water into the filtrate to obtain shell fossil processing liquid;
and (3) preparing a finished product: respectively calcining and crushing phyllite, schist, mica and silicon powder, then stirring and mixing with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid, carrying out electrolytic reaction, and filtering after the reaction is finished to obtain the finished product liquid medicament.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
aiming at the first aspect, the embodiment of the invention provides a soil conditioner, which comprises the following raw materials in percentage by weight: 10-30% of phyllite, 10-25% of schist, 10-25% of mica, 10-25% of silicon powder, 15-25% of beili stone processing liquid, 1-3% of salt, 6-10% of calcium carbonate, 1-3% of sodium molybdate, 3-10% of potassium nitrate, 9-15% of calcium chloride dihydrate and 5-10% of magnesium chloride.
In the raw material formula of the soil conditioner, phyllite and schist contain siliceous, calcareous, carbonaceous and other components; aluminosilicate in which mica contains metal elements such as potassium and iron; the microporous structure of the silicon powder is beneficial to promoting the nutrient absorption of crop roots and enhancing the soil fertility; the shellfish fossil processing liquid can provide abundant calcium and other mineral elements; the raw materials are matched with each other, so that the soil nutrition condition can be effectively improved, mineral elements such as calcium, potassium and iron in the soil are supplemented, the pH value of the soil is adjusted, the soil viscosity is improved, the soil fertility is enhanced, correspondingly, the planted crops can grow healthier, the crops can better absorb nutrients in the soil, the fertilizer utilization rate is improved, the crop yield is further improved, and the agricultural production is facilitated.
Aiming at the second aspect, the embodiment of the invention provides a preparation method of a soil conditioner, which comprises the following steps:
preparing a shell fossil processing liquid: preparing shell fossil, white vinegar, citric acid, hypophosphorous acid and seawater salt water according to a ratio, calcining and crushing the shell fossil, sequentially adding the citric acid and the hypophosphorous acid into the white vinegar while stirring, heating, slowly adding the crushed shell fossil for reaction, filtering after the reaction is finished to obtain filtrate, and adding the seawater salt water into the filtrate to obtain shell fossil processing liquid;
and (3) preparing a finished product: respectively calcining and crushing phyllite, schist, mica and silicon powder, then stirring and mixing with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid, carrying out electrolytic reaction, and filtering after the reaction is finished to obtain the finished product liquid medicament.
The preparation method of the soil conditioner comprises the following steps of firstly preparing a shellfish fossil processing liquid: calcining and crushing scallop stone, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating, slowly adding the crushed scallop stone, filtering after the reaction is finished, and adding seawater to obtain scallop stone processing liquid; in the process, the shellfish fossil is calcined and crushed, so that on one hand, some useless impurities in the shellfish fossil can be removed, and meanwhile, calcium contained in the shellfish fossil can be activated, so that the shellfish fossil can be extracted more easily, and crops can absorb nutrients better; then, phyllite, schist, mica and silica powder are respectively calcined and crushed, so that useless impurities contained in the ores can be removed through calcination and crushing, and mineral elements which are contained in the ores and contribute to crop growth, such as silicon, potassium, calcium, magnesium and the like, can be effectively activated, so that the mineral elements can be better absorbed and utilized to supplement soil nutrition; then the raw materials are stirred and mixed with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid together, then electrolytic reaction is carried out, and after the reaction is finished, filtration is carried out to obtain the finished product liquid medicament. The soil conditioner prepared in the way can effectively supplement nutrient elements such as calcium, magnesium and potassium in soil, promote the growth and development of crops, is more favorable for the crops to absorb and utilize nutrients, supplement soil nutrients, adjust the pH value of the soil and improve the soil quality, is convenient and quick to use, and is more favorable for agricultural production and use.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to specific examples.
The invention relates to a soil conditioner which is characterized by comprising the following raw materials in percentage by weight: 10-30% of phyllite, 10-25% of schist, 10-25% of mica, 10-25% of silicon powder, 15-25% of beili stone processing liquid, 1-3% of salt, 6-10% of calcium carbonate, 1-3% of sodium molybdate, 3-10% of potassium nitrate, 9-15% of calcium chloride dihydrate and 5-10% of magnesium chloride.
In the above examples, the raw material formulation contains siliceous, calcareous, carbonaceous components and the like in phyllite and schist; aluminosilicate in which mica contains metal elements such as potassium and iron; the microporous structure of the silicon powder is beneficial to promoting the nutrient absorption of crop roots and enhancing the soil fertility; the shellfish fossil processing liquid can provide abundant calcium and other mineral elements; the raw materials are matched with each other, so that the soil nutrition condition can be effectively improved, mineral elements such as calcium, potassium and iron in the soil are supplemented, the pH value of the soil is adjusted, the soil viscosity is improved, the soil fertility is enhanced, correspondingly, the planted crops can grow healthier, the crops can better absorb nutrients in the soil, the fertilizer utilization rate is improved, the crop yield is further improved, and the agricultural production is facilitated.
Further, in some embodiments of the present invention, the raw materials are used in the following amounts by weight: 10% of phyllite, 10% of schist, 10% of mica, 10% of silicon powder, 20% of beili stone processing liquid, 3% of salt, 9% of calcium carbonate, 2% of sodium molybdate, 6% of potassium nitrate, 13% of calcium chloride dihydrate and 7% of magnesium chloride.
In the above embodiment, the amount and the proportion of each raw material are further controlled, so that the raw materials can be better combined and reacted and matched with each other, nutrient components contained in the raw materials can be fully reacted and extracted, soil nutrition can be better supplemented, crops can be more favorably absorbed and utilized by nutrient substances, the soil environment is improved, the growth of the crops is promoted, and the agricultural production and use are more favorably realized.
Further, in some embodiments of the present invention, the raw materials of the shellfish fossil processing solution include shellfish fossil, white vinegar, citric acid, hypophosphorous acid and sea brine, and the weight ratio of shellfish fossil to sea brine is 1: 2: 0.03: 0.01: 0.1.
in the embodiment, by controlling the proportion of the raw materials in the shellfish fossil processing liquid, the shellfish fossil processing liquid with better quality and higher calcium concentration can be prepared, so that the soil can be well supplemented with nutrition, the nutrient substances can be better absorbed and utilized by crops, the finally prepared soil conditioner has higher use value, and the production is better facilitated.
The embodiment of the invention also provides a preparation method of the soil conditioner, which comprises the following steps:
preparing a shell fossil processing liquid: preparing shell fossil, white vinegar, citric acid, hypophosphorous acid and seawater salt water according to a ratio, calcining and crushing the shell fossil, sequentially adding the citric acid and the hypophosphorous acid into the white vinegar while stirring, heating, slowly adding the crushed shell fossil for reaction, filtering after the reaction is finished to obtain filtrate, and adding the seawater salt water into the filtrate to obtain shell fossil processing liquid;
and (3) preparing a finished product: respectively calcining and crushing phyllite, schist, mica and silicon powder, then stirring and mixing with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid, carrying out electrolytic reaction, and filtering after the reaction is finished to obtain the finished product liquid medicament.
In the above example, it was first prepared a shellfish fossil processing fluid: calcining and crushing scallop stone, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating, slowly adding the crushed scallop stone, filtering after the reaction is finished, and adding seawater to obtain scallop stone processing liquid; in the process, the shellfish fossil is calcined and crushed, so that on one hand, some useless impurities in the shellfish fossil can be removed, and meanwhile, calcium contained in the shellfish fossil can be activated, so that the shellfish fossil can be extracted more easily, and crops can absorb nutrients better; then, phyllite, schist, mica and silica powder are respectively calcined and crushed, so that useless impurities contained in the ores can be removed through calcination and crushing, and mineral elements which are contained in the ores and contribute to crop growth, such as silicon, potassium, calcium, magnesium and the like, can be effectively activated, so that the mineral elements can be better absorbed and utilized to supplement soil nutrition; then the raw materials are stirred and mixed with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid together, then electrolytic reaction is carried out, and after the reaction is finished, filtration is carried out to obtain the finished product liquid medicament. The soil conditioner prepared in the way can effectively supplement nutrient elements such as calcium, magnesium and potassium in soil, promote the growth and development of crops, is more favorable for the crops to absorb and utilize nutrients, supplement soil nutrients, adjust the pH value of the soil and improve the soil quality, is convenient and quick to use, and is more favorable for agricultural production and use.
Further, in some embodiments of the invention, the beidellite, phyllite, mica, and silica fume are calcined at a temperature above 220 ℃.
In the above embodiment, by calcining the beige stone, phyllite, schist, mica and silica powder and controlling the calcining temperature, it is possible to remove some of the useless components contained in these ores better by calcining, and at the same time, activate the mineral components such as calcium, magnesium, potassium and silicon contained in the ores, so that crops can better absorb and utilize these nutrient components, thereby promoting the growth and development of crops, increasing the yield of crops, supplementing the nutrition of soil and improving the soil environment.
Further, in some embodiments of the present invention, the crushed scallop stone is slowly added after the temperature is raised to 60-70 ℃ during the preparation of the scallop stone processing liquid.
In the above embodiment, by slowly adding the crushed scallop stone and controlling the temperature during the addition, effective ingredients contained in the scallop stone can be more sufficiently reacted and extracted, so that the concentration of the effective ingredients contained in the prepared scallop stone processing liquid is higher, the quality of the product soil conditioner is further improved, and the production and use are more facilitated.
Further, in some embodiments of the present invention, in the preparation process of the scallop stone processing liquid, the scallop stone is calcined, crushed and sieved by a 300-mesh sieve, and the crushed scallop stone is divided into 10 parts and is slowly added in sequence.
In the embodiment, the scallop stone is calcined, crushed, sieved by a 300-mesh sieve, and meanwhile, 10 parts of scallop stone are uniformly and slowly added in sequence, so that the reaction and dissolution of the scallop stone are more fully facilitated, nutritional ingredients such as calcium contained in the scallop stone can be fully extracted, the phenomenon that the reaction is too violent due to the fact that too much scallop stone powder is added at one time can be avoided, the reaction is more facilitated, the quality of the prepared scallop stone processing liquid can be further improved, soil nutrition is supplemented, crops can absorb the nutritional ingredients better, and the growth of the crops is promoted.
Further, in some embodiments of the present invention, during the preparation of the scallop stone processing fluid, scallop stone is added, and then nitrogen is injected and sealed for 24 hours.
In the above embodiment, through pouring into nitrogen gas and sealed, reaction 24h can avoid receiving external influence and receiving the pollution at the process reactor internal environment of reaction, also is favorable to making the reaction process more stable simultaneously, makes the active ingredient in the shellfish fossil can fully react and draw out to further promote the quality of the shellfish fossil processing liquid that the preparation obtained, more be favorable to the use of producing.
Further, in some embodiments of the invention, during the preparation of the shellfish fossil fluid, the pH of the filtrate is adjusted to 4-5, and then seawater is added.
In the embodiment, the pH is adjusted to 4-5, and then the seawater is added, so that the property of the prepared shellfish fossil processing liquid is more stable, the subsequent preparation and use of a finished product soil conditioner are facilitated, the effects of supplementing soil nutrition, adjusting the pH of soil, improving the soil environment and promoting the growth and development of crops can be better achieved, and the production and use are facilitated.
Further, in some embodiments of the present invention, during the preparation of the final product, the electrolysis reaction is performed for 6h at 220-240 ℃.
In the embodiment, the reaction temperature and the reaction time of the same group are controlled, so that the effective components in the raw materials can be more fully reacted and extracted, and the concentration of the effective components in the product soil conditioner is improved, thereby better playing the effects of supplementing soil nutrition, promoting the growth and development of crops and improving the yield of the crops, and being more beneficial to agricultural production.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The embodiment provides a soil conditioner, which is prepared by the following method:
preparing a shell fossil processing liquid: according to the following steps: 2: 0.03: 0.01: preparing raw materials of shell fossil, white vinegar, citric acid, hypophosphorous acid and sea salt water in a weight ratio of 0.1; calcining scallop stone at the temperature of more than 220 ℃, crushing, sieving by using a 300-mesh sieve, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating to 60 ℃, uniformly dividing the crushed scallop stone into 10 parts, sequentially and slowly adding, injecting nitrogen gas, sealing, reacting for 24 hours, filtering after the reaction is finished to obtain a filtrate, adjusting the pH value of the filtrate to 5, and adding seawater to obtain scallop stone processing liquid;
and (3) preparing a finished product: taking 10% of phyllite, 10% of schist, 10% of mica and 10% of silicon powder according to the weight ratio, calcining at the temperature of more than 220 ℃, crushing, stirring and mixing with 2% of salt, 6% of calcium carbonate, 2% of sodium molybdate, 3% of potassium nitrate, 12% of calcium chloride dihydrate, 10% of magnesium chloride and 25% of prepared shell fossil processing liquid, carrying out electrolytic reaction for 6h at the temperature of 220 ℃, and filtering after the reaction is finished to obtain the finished product liquid medicament.
Example 2
The embodiment provides a soil conditioner, which is prepared by the following method:
preparing a shell fossil processing liquid: according to the following steps: 2: 0.03: 0.01: preparing raw materials of shell fossil, white vinegar, citric acid, hypophosphorous acid and sea salt water in a weight ratio of 0.1; calcining scallop stone at the temperature of more than 220 ℃, crushing, sieving by using a 300-mesh sieve, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating to 70 ℃, uniformly dividing the crushed scallop stone into 10 parts, sequentially and slowly adding, injecting nitrogen gas, sealing, reacting for 24 hours, filtering after the reaction is finished to obtain a filtrate, adjusting the pH value of the filtrate to 4, and adding seawater to obtain scallop stone processing liquid;
and (3) preparing a finished product: according to the weight ratio, 15% of phyllite, 10% of schist, 20% of mica and 15% of silicon powder are calcined at the temperature of more than 220 ℃ and then crushed, and then the crushed phyllite, 1% of salt, 6% of calcium carbonate, 1% of sodium molybdate, 3% of potassium nitrate, 9% of calcium chloride dihydrate, 5% of magnesium chloride and 15% of prepared shell fossil processing liquid are stirred and mixed together, the mixture is electrolyzed at the temperature of 240 ℃ for 6h, and after the reaction is finished, the mixture is filtered to obtain the finished product liquid medicament.
Example 3
The embodiment provides a soil conditioner, which is prepared by the following method:
preparing a shell fossil processing liquid: according to the following steps: 2: 0.03: 0.01: preparing raw materials of shell fossil, white vinegar, citric acid, hypophosphorous acid and sea salt water in a weight ratio of 0.1; calcining scallop stone at the temperature of more than 220 ℃, crushing, sieving by a 300-mesh sieve, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating to 65 ℃, uniformly dividing the crushed scallop stone into 10 parts, sequentially and slowly adding, injecting nitrogen gas, sealing, reacting for 24 hours, filtering after the reaction is finished to obtain a filtrate, adjusting the pH of the filtrate to 4.5, and adding seawater to obtain scallop stone processing liquid;
and (3) preparing a finished product: according to the weight ratio, 25% of phyllite, 10% of schist, 10% of mica and 10% of silicon powder are calcined at the temperature of more than 220 ℃ and then crushed, and then the crushed phyllite, 1% of salt, 6% of calcium carbonate, 1% of sodium molybdate, 3% of potassium nitrate, 10% of calcium chloride dihydrate, 9% of magnesium chloride and 15% of prepared shell fossil processing liquid are stirred and mixed together, the mixture is electrolyzed at the temperature of 230 ℃ for 6 hours, and after the reaction is finished, the mixture is filtered to obtain the finished product liquid medicament.
Example 4
The embodiment provides a soil conditioner, which is prepared by the following method:
preparing a shell fossil processing liquid: according to the proportion of 1: 2: 0.03: 0.01: 0.1 weight proportion preparing raw materials of shell fossil, white vinegar, citric acid, hypophosphorous acid and seawater; calcining scallop stone at the temperature of more than 220 ℃, crushing, sieving by using a 300-mesh sieve, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating to 70 ℃, uniformly dividing the crushed scallop stone into 10 parts, sequentially and slowly adding, injecting nitrogen gas, sealing, reacting for 24 hours, filtering after the reaction is finished to obtain a filtrate, adjusting the pH value of the filtrate to 5, and adding seawater to obtain scallop stone processing liquid;
and (3) preparing a finished product: according to the weight ratio, 15% of phyllite, 10% of schist, 15% of mica and 20% of silicon powder are calcined at the temperature of more than 220 ℃ and then crushed, and then the crushed phyllite, 1% of salt, 6% of calcium carbonate, 1% of sodium molybdate, 3% of potassium nitrate, 9% of calcium chloride dihydrate, 5% of magnesium chloride and 15% of prepared shell fossil processing liquid are stirred and mixed together, the mixture is electrolyzed at the temperature of 220 ℃ for 6 hours, and after the reaction is finished, the mixture is filtered to obtain the finished product liquid medicament.
Example 5
The embodiment provides a soil conditioner, which is prepared by the following method:
preparing a shell fossil processing liquid: according to the following steps: 2: 0.03: 0.01: preparing raw materials of shell fossil, white vinegar, citric acid, hypophosphorous acid and sea salt water in a weight ratio of 0.1; calcining scallop stone at the temperature of more than 220 ℃, crushing, sieving by a 300-mesh sieve, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating to 60 ℃, uniformly dividing the crushed scallop stone into 10 parts, sequentially and slowly adding, injecting nitrogen gas, sealing, reacting for 24 hours, filtering after the reaction is finished to obtain a filtrate, adjusting the pH of the filtrate to 4.5, and adding seawater to obtain scallop stone processing liquid;
preparing a finished product: taking 10% of phyllite, 10% of schist, 10% of mica and 10% of silicon powder according to the weight ratio, calcining at the temperature of more than 220 ℃, crushing, stirring and mixing with 3% of salt, 9% of calcium carbonate, 2% of sodium molybdate, 6% of potassium nitrate, 13% of calcium chloride dihydrate, 7% of magnesium chloride and 20% of prepared shell fossil processing liquid, carrying out electrolytic reaction at the temperature of 220 plus materials and 240 ℃ for 6h, and filtering after the reaction is finished to obtain the finished product liquid medicament.
Test examples
Crop planting tests are carried out in village township in Yangling area of Shanxi province from 22 months 6 to 01 months 2021, the planted crops are corns, the variety is Weilong 105, the soil type of the planting field is yellow clay, the edge of the cell is provided with a protection row, the soil type, the fertility and the farming of the whole test field are uniform and consistent, the irrigation and drainage conditions are good, and the requirements of agricultural scientific practice (GAP) are met.
Spraying with manual knapsack sprayer under pressure of 0.3-0.4MPa and diameter of spray hole of 0.7 mm.
Dividing a planting field area into 4 blocks, wherein each block has an area of 50 square meters, and taking one block as a test field to which the soil conditioner provided by the embodiment 5 of the invention is applied; two of the two are used as control fields, and domestic compound fertilizer A and domestic compound fertilizer B are respectively applied; the other block is used as a blank field and is not additionally applied; maize plant growth (table 1) and yield (table 2) were observed and recorded.
TABLE 1
TABLE 2
Tests show that the soil conditioner provided by the embodiment of the invention can increase the plant height and stem thickness of corn plants, but the effect is not obvious compared with that of a domestic compound fertilizer; in contrast, the corn yield can be effectively increased, and the yield increasing effect is excellent.
In summary, according to the soil conditioner and the preparation method thereof provided by the embodiments of the present invention, in the raw material formula of the soil conditioner, phyllite and schist contain siliceous, calcareous, carbonaceous and other components; aluminosilicate in which mica contains metal elements such as potassium and iron; the microporous structure of the silicon powder is beneficial to promoting the nutrient absorption of crop roots and enhancing the soil fertility; the shellfish fossil processing liquid can provide abundant calcium and other mineral elements; the raw materials are matched with one another, so that the soil nutrition condition can be effectively improved, mineral elements such as calcium, potassium and iron in soil are supplemented, the pH value of the soil is adjusted, the soil viscosity is improved, the soil fertility is enhanced, correspondingly, the planted crops can grow healthier, the crops can better absorb nutrients in the soil, the fertilizer utilization rate is increased, the crop yield is increased, and the agricultural production is facilitated.
The preparation method comprises the following steps of firstly preparing a shellfish fossil processing liquid: calcining and crushing scallop stone, sequentially adding citric acid and hypophosphorous acid into white vinegar while stirring, heating, slowly adding the crushed scallop stone, filtering after the reaction is finished, and adding seawater to obtain scallop stone processing liquid; in the process, the shellfish fossil is calcined and crushed, so that on one hand, some useless impurities in the shellfish fossil can be removed, and meanwhile, calcium contained in the shellfish fossil can be activated, so that the shellfish fossil can be extracted more easily, and crops can absorb nutrients better; then, phyllite, schist, mica and silica powder are respectively calcined and crushed, so that useless impurities contained in the ores can be removed through calcination and crushing, and mineral elements which are contained in the ores and contribute to crop growth, such as silicon, potassium, calcium, magnesium and the like, can be effectively activated, so that the mineral elements can be better absorbed and utilized to supplement soil nutrition; then the raw materials are stirred and mixed with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid together, then electrolytic reaction is carried out, and after the reaction is finished, filtration is carried out to obtain the finished product liquid medicament. The soil conditioner prepared in the way can effectively supplement nutrient elements such as calcium, magnesium and potassium in soil, promote the growth and development of crops, is more favorable for the crops to absorb and utilize nutrients, supplement soil nutrients, adjust the pH value of the soil and improve the soil quality, is convenient and quick to use, and is more favorable for agricultural production and use.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The soil conditioner is characterized by comprising the following raw materials in percentage by weight: 10-30% of phyllite, 10-25% of schist, 10-25% of mica, 10-25% of silicon powder, 15-25% of beili stone processing liquid, 1-3% of salt, 6-10% of calcium carbonate, 1-3% of sodium molybdate, 3-10% of potassium nitrate, 9-15% of calcium chloride dihydrate and 5-10% of magnesium chloride.
2. The soil conditioner according to claim 1, wherein the amount of each raw material is, by weight: 10% of phyllite, 10% of schist, 10% of mica, 10% of silicon powder, 20% of beili stone processing liquid, 3% of salt, 9% of calcium carbonate, 2% of sodium molybdate, 6% of potassium nitrate, 13% of calcium chloride dihydrate and 7% of magnesium chloride.
3. A soil amendment according to claim 1, wherein the raw materials of the shellfish fossil processing fluid include shellfish fossil, white vinegar, citric acid, hypophosphorous acid, and sea brine in a weight ratio of 1: 2: 0.03: 0.01: 0.1.
4. a process for preparing a soil amendment according to any of claims 1 to 3, comprising the steps of:
preparing a shell fossil processing liquid: preparing shell fossil, white vinegar, citric acid, hypophosphorous acid and seawater salt water according to a ratio, calcining and crushing the shell fossil, sequentially adding the citric acid and the hypophosphorous acid into the white vinegar while stirring, heating, slowly adding the crushed shell fossil for reaction, filtering after the reaction is finished to obtain filtrate, and adding the seawater salt water into the filtrate to obtain shell fossil processing liquid;
and (3) preparing a finished product: respectively calcining and crushing phyllite, schist, mica and silicon powder, then stirring and mixing with salt, calcium carbonate, sodium molybdate, potassium nitrate, calcium chloride dihydrate, magnesium chloride and prepared shell fossil processing liquid, carrying out electrolytic reaction, and filtering after the reaction is finished to obtain the finished product liquid medicament.
5. A method of producing a soil amendment according to claim 4, wherein the beidellite, phyllite, mica and silica fume are calcined at a temperature of 220 ℃ or higher.
6. A method for improving soil according to claim 4, wherein the crushed scallop stone is slowly added after the temperature is raised to 60-70 ℃ in the preparation of the scallop stone processing liquid.
7. A soil conditioner preparation method as claimed in claim 4, wherein in the preparation of said shellfish fossil processing liquid, shellfish fossil is calcined, pulverized and sieved with 300 mesh sieve, and the pulverized shellfish fossil is divided into 10 parts and added slowly in sequence.
8. A method for preparing a soil conditioner as claimed in claim 4, wherein, in the preparation process of said shellfish fossil processing liquid, shellfish fossil is added, nitrogen gas is injected and sealed, and reaction is carried out for 24 h.
9. A method of improving soil according to claim 4, wherein said shellfish fossil processing liquid is prepared by adjusting pH of the filtrate to 4-5 and adding sea brine.
10. A method for preparing a soil conditioner as claimed in claim 4, characterized in that, in the preparation process of the finished product, the electrolysis reaction is carried out for 6h at 220-240 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116355615A (en) * | 2023-04-04 | 2023-06-30 | 黄河水利委员会黄河水利科学研究院 | Heavy metal passivator of muscovite-based supported magnesium and preparation method and application thereof |
| CN116376555A (en) * | 2023-04-04 | 2023-07-04 | 黄河水利委员会黄河水利科学研究院 | White mica-based calcium-magnesium loaded heavy metal passivator and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334690A (en) * | 2010-07-27 | 2012-02-01 | 河北农业大学 | Method for preparing calcium citrate with oyster shells and fan shells |
| CN113736468A (en) * | 2021-10-09 | 2021-12-03 | 山东禹德农业科技有限公司 | Soil conditioner and preparation method thereof |
| CN113800985A (en) * | 2021-10-09 | 2021-12-17 | 山东禹德农业科技有限公司 | Environment-friendly water-soluble soil conditioner containing petrifaction and minerals and preparation method thereof |
-
2022
- 2022-01-19 CN CN202210058293.3A patent/CN114524699A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334690A (en) * | 2010-07-27 | 2012-02-01 | 河北农业大学 | Method for preparing calcium citrate with oyster shells and fan shells |
| CN113736468A (en) * | 2021-10-09 | 2021-12-03 | 山东禹德农业科技有限公司 | Soil conditioner and preparation method thereof |
| CN113800985A (en) * | 2021-10-09 | 2021-12-17 | 山东禹德农业科技有限公司 | Environment-friendly water-soluble soil conditioner containing petrifaction and minerals and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李东光: "《精细化工产品配方与工艺 2》", 31 January 2001, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116355615A (en) * | 2023-04-04 | 2023-06-30 | 黄河水利委员会黄河水利科学研究院 | Heavy metal passivator of muscovite-based supported magnesium and preparation method and application thereof |
| CN116376555A (en) * | 2023-04-04 | 2023-07-04 | 黄河水利委员会黄河水利科学研究院 | White mica-based calcium-magnesium loaded heavy metal passivator and preparation method and application thereof |
| CN116376555B (en) * | 2023-04-04 | 2023-11-24 | 黄河水利委员会黄河水利科学研究院 | White mica-based calcium-magnesium loaded heavy metal passivator and preparation method and application thereof |
| CN116355615B (en) * | 2023-04-04 | 2024-02-02 | 黄河水利委员会黄河水利科学研究院 | Heavy metal passivator of muscovite-based supported magnesium and preparation method and application thereof |
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