CN113173826A - Steel slag fertilizer for corn and application thereof - Google Patents

Steel slag fertilizer for corn and application thereof Download PDF

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Publication number
CN113173826A
CN113173826A CN202110664778.2A CN202110664778A CN113173826A CN 113173826 A CN113173826 A CN 113173826A CN 202110664778 A CN202110664778 A CN 202110664778A CN 113173826 A CN113173826 A CN 113173826A
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China
Prior art keywords
fertilizer
corn
steel slag
fermented organic
slag fertilizer
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Application number
CN202110664778.2A
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Chinese (zh)
Inventor
康跻耀
王洋洋
王硕
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Hebei Zhongke Tongchuang Technology Development Co ltd
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Hebei Zhongke Tongchuang Technology Development Co ltd
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Priority to CN202110664778.2A priority Critical patent/CN113173826A/en
Publication of CN113173826A publication Critical patent/CN113173826A/en
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • A01G22/20—Cereals
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/20—Preparation 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-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 steel slag fertilizer for corn and application thereof. The steel slag fertilizer for the corn comprises the following components in percentage by mass: 20-40% of steel slag, 50-60% of fermented organic fertilizer, 5-10% of urea, 2-5% of diammonium phosphate, 2-5% of ammonium sulfate and 1-3% of potassium sulfate. The steel slag fertilizer for the corn uses the steel slag as a main body, is matched with a fermented organic fertilizer, and inorganic fertilizers such as nitrogen, phosphorus, sulfur, potassium and the like, realizes the resource utilization of the steel slag, reduces the production cost of the fertilizer, has no pollution, solidifies soil, effectively improves the proportion of elements such as nitrogen, phosphorus, sulfur, potassium and the like in the fertilizer, and simultaneously contains more mineral elements required by plants such as calcium, silicon, magnesium, iron, phosphorus and the like, so that the fertilizer product has a compound nutrition effect on the corn, and the corn yield is increased by 69.77-73.60%.

Description

Steel slag fertilizer for corn and application thereof
Technical Field
The invention belongs to the technical field of agricultural fertilizers, and particularly relates to a steel slag fertilizer for corn and application thereof.
Background
Compared with traditional grain crops such as rice, wheat and the like, the corn has strong drought tolerance, cold tolerance, barren tolerance and excellent environmental adaptability. Corn has high nutritive value, is an excellent grain crop, is widely planted in tropical and temperate regions, and is mainly farmyard manure and supplemented by chemical fertilizer in the corn planting process. The farmyard manure is mainly an organic fertilizer, contains rich nutrient components, can improve soil and fertilize land, and has longer fertilizer efficiency. The fertilizer is a quick-acting fertilizer, and although the fertilizer also contains nutrient elements required by corn, the nutrient components are single compared with the nutrient components of farmyard manure. Meanwhile, as the application amount of the fertilizer increases year by year, part of the fertilizer entering the soil is not absorbed and utilized by the corn and is not absorbed and fixed by the soil of the root layer, and is accumulated below the soil root layer or transferred into underground water to become a pollutant, which is not beneficial to the growth of the corn and the improvement of the soil fertility. The preparation of the fertilizer which contains comprehensive nutrient elements, improves the corn yield in a targeted manner, has good fertilizer efficiency and no pollution is a problem to be solved urgently in the fertilizer industry.
Disclosure of Invention
The invention aims to provide a steel slag fertilizer for corn, which has the advantages of wide component sources, low cost, stable physical and chemical properties and balanced nutrition, can meet the normal growth of corn, and improves the resource utilization rate of steel slag.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a steel slag fertilizer for corn, which comprises the following components in percentage by mass: 20-40% of steel slag, 50-60% of fermented organic fertilizer, 5-10% of urea, 2-5% of diammonium phosphate, 2-5% of ammonium sulfate and 1-3% of potassium sulfate.
Preferably, the raw materials of the fermented organic fertilizer comprise one or more of biological straws, melon vines, human excrement, livestock and poultry excrement, leaves, weeds, bran vinegar residues, wine residues, bone meal and bagasse.
Preferably, the preparation method of the fermented organic fertilizer comprises composting fermentation.
Preferably, the compost fermentation temperature is 15-20 ℃, and the compost fermentation time is 15-60 days.
Preferably, the compost fermentation uses a starter; the leaven comprises one or more of bacillus subtilis, bacillus licheniformis, enterococcus faecalis, yeast, lactobacillus and enzyme preparation.
Preferably, after the compost fermentation, the method also comprises drying the fertilizer obtained by fermentation.
Preferably, the drying temperature is 50-70 ℃, and the drying time is 10-15 h.
Preferably, the particle size of the steel slag is 30-200 meshes.
The invention also provides application of the steel slag fertilizer for corn in corn planting.
Preferably, the application amount of the steel slag fertilizer for corn is 100-300 kg/mu, and the application frequency is 1-3 times.
The invention provides a steel slag fertilizer for corn, which comprises the following components in percentage by mass: 20-40% of steel slag, 50-60% of fermented organic fertilizer, 5-10% of urea, 2-5% of diammonium phosphate, 2-5% of ammonium sulfate and 1-3% of potassium sulfate. The invention takes the steel slag as a main body, reduces the production cost of the fertilizer, effectively improves the proportion of elements such as nitrogen, phosphorus, sulfur, potassium and the like in the fertilizer by matching with the fermented organic fertilizer and inorganic fertilizers such as nitrogen, phosphorus, sulfur, potassium and the like, and ensures that the fertilizer product has a compound nutrition effect on corn. Meanwhile, the steel slag has high utilization rate, and can improve the soil structure and adjust the physical and chemical properties of the soil; the fermented organic fertilizer not only has no pollution, but also solidifies soil and increases fertility.
Detailed Description
The invention provides a steel slag fertilizer for corn, which comprises the following components in percentage by mass: 20-40% of steel slag, 50-60% of fermented organic fertilizer, 5-10% of urea, 2-5% of diammonium phosphate, 2-5% of ammonium sulfate and 1-3% of potassium sulfate.
The steel slag fertilizer for the corn comprises, by mass, 20-40% of steel slag, preferably 25-35%, and more preferably 30%. The particle size of the steel slag is preferably 30-200 meshes, more preferably 50-100 meshes, more preferably 70-80 meshes, and more preferably 75 meshes. The steel slag of the invention is preferably metallurgical slag in a steel-making process. In the invention, the steel slag has the characteristics of porosity, large specific surface area, good adsorption performance and the like, has good effects of improving the soil structure and adjusting the physical and chemical properties of the soil, and simultaneously, the contents of heavy metals such As Cr, Pb, Cd, As and the like in the steel slag are far lower than the limit values of national standards, so that the ecological environment risk does not exist; the steel slag has moderate granularity and can be used as an ideal soil conditioner.
The steel slag fertilizer for the corn comprises 50-60% of fermented organic fertilizer by mass percentage, and preferably 55% of fermented organic fertilizer. The raw materials of the fermented organic fertilizer preferably comprise one or more of biological straws, melon vines, human excrement, livestock and poultry excrement, leaves, weeds, bran vinegar residues, wine residues, bone meal and bagasse, more preferably one or more of biological straws, human excrement and livestock and poultry excrement, and more preferably a mixture of the biological straws and the livestock and poultry excrement; the biological straws preferably comprise one or more of corn straws, wheat straws, straws of coarse cereal crops and straws of bean crops, more preferably one or more of corn straws and wheat straws, and more preferably a mixture of the corn straws and the wheat straws; when the raw material of the fermented organic fertilizer is a mixture of biological straws and livestock and poultry manure, the mass ratio of the biological straws to the livestock and poultry manure is preferably 1-2: 0.8 to 1.2, and more preferably 1.5: 1. in the invention, the fermented organic fertilizer not only has no pollution, but also solidifies soil and increases fertility.
In the invention, the preparation method of the fermented organic fertilizer preferably comprises compost fermentation, wherein the compost fermentation temperature is preferably 15-20 ℃, more preferably 16-18 ℃, and more preferably 17 ℃; the time for fermenting the compost is preferably 15-60 days, more preferably 20-50 days, even more preferably 30-40 days, and most preferably 35 days; the height of the compost fermentation is preferably 70-80 cm, and further preferably 75 cm; the volume of the compost fermentation is preferably not less than 4, more preferably not less than 8, and still more preferably not less than 10. The leavening agent is used for compost fermentation, and the composition of the leavening agent preferably comprises one or more of bacillus subtilis, bacillus licheniformis, enterococcus faecalis, saccharomycetes, lactic acid bacteria and enzyme preparation; the leaven is preferably purchased from Zhengzhou Wang nong Bao biological science and technology limited company, and the brand of the leaven is Wang nong Bao-biological bacterial fertilizer leaven. The invention preferably uses a breathable cover to cover the raw materials of the fermented organic fertilizer, and the compost fermented breathable cover is preferably a straw mat. In the invention, by continuous high temperature and microbial balance, harmful bacteria, insects, ova, grass seeds and other crop pests in the raw materials of the fermented organic fertilizer are quickly and thoroughly killed, and pathogenic bacteria are inhibited from breeding again; meanwhile, the fertilizer can decompose gas which can generate foul smell, greatly improve the environment of a place, form a polyglutamic acid (gamma-PGA) natural material with excellent water absorption and moisture retention characteristics in the fermentation process, prevent the loss of fertilizer and moisture, and become a good natural protective film for soil, thereby achieving the effect of enriching nutrients.
After composting fermentation, the invention preferentially dries the fertilizer obtained by fermentation to obtain the fermented organic fertilizer. The drying temperature is preferably 50-70 ℃, and further preferably 60 ℃; the drying time is preferably 10-15 h, and further preferably 12h, and in the invention, the drying is beneficial to crushing the fermented organic fertilizer and mixing the fermented organic fertilizer with other components.
The steel slag fertilizer for the corn comprises 5-10% of urea, preferably 6-9% of urea, and further preferably 7-8% of urea in percentage by mass; the steel slag fertilizer for the corn comprises 2-5% of diammonium phosphate, preferably 3-4% of diammonium phosphate; the steel slag fertilizer for the corn comprises 2-5% of ammonium sulfate, preferably 3-4%; the steel slag fertilizer for corn comprises 1-3% of potassium sulfate, and preferably 2%. In the invention, the urea, the diammonium phosphate, the ammonium sulfate and the potassium sulfate can ensure that the fertilizer contains enough nutrient elements of nitrogen, phosphorus and potassium.
The fertilizer disclosed by the invention takes the steel slag as a main body, is matched with a fermented organic fertilizer, and inorganic fertilizers such as nitrogen, phosphorus, sulfur, potassium and the like, so that the resource utilization of the steel slag is realized, the production cost of the fertilizer is reduced, the pollution is avoided, the soil is solidified, the proportion of elements such as nitrogen, phosphorus, sulfur, potassium and the like in the fertilizer is effectively improved, and the fertilizer contains more mineral elements required by plants such as calcium, silicon, magnesium, iron, phosphorus and the like, so that the fertilizer product has a compound nutritional effect on corn.
The invention also provides application of the steel slag fertilizer for corn in corn planting. The total application amount of the steel slag fertilizer for the corn is preferably 100-300 kg/mu, and more preferably 200 kg/mu; the fertilization frequency of the steel slag fertilizer for corn is preferably 1-3 times, and further preferably 2 times. When the fertilization frequency is 2 times, the proportion of the fertilization amount of 2 times is preferably 0.8-1.2: 0.8 to 1.2, and more preferably 1: 1. according to the invention, the steel slag fertilizer for corn is preferably mixed with water and a binder to obtain a granular fertilizer product, and then the granular fertilizer product is applied. The mass ratio of the steel slag fertilizer for corn to water to the binder is preferably 18-22: 0.8-1.2: 0.8 to 1.2, and more preferably 20:1: 1. The steel slag fertilizer for the corn can well improve the yield of the corn, and compared with the method without applying the fertilizer, the yield of the corn is increased by 69.77-73.60%; compared with the conventional fertilizer, the yield of the corn is increased by 37.35-40.52%.
In order to further illustrate the present invention, the following examples are provided to describe the steel slag fertilizer for corn in detail, but they should not be construed as limiting the scope of the present invention.
Example 1
1) Preparing a fermented organic fertilizer:
the method comprises the steps of carrying out composting fermentation by using biological straws, human excrement and livestock excrement as fermentation raw materials, covering the fermentation raw materials by using a straw mat with the height of 75cm and the fermentation material of Wang nong Bao biological fertilizer (purchased website: https:// m.tb.cn/h.4uWXWtism ═ 100d8e) purchased from Wang nong Bao biological science and technology Limited in Zheng Zhou, fermenting at 17 ℃ for 35d to obtain a fermented organic fertilizer, and drying at 60 ℃ for 12 h.
2) Weighing 300kg of steel slag, 500kg of fermented organic fertilizer, 80kg of urea, 50kg of diammonium phosphate, 50kg of ammonium sulfate and 20kg of potassium sulfate according to the formula proportion, uniformly stirring and mixing, then adding 50kg of a proper amount of water, 50kg of attapulgite binder and granulating to obtain a granular fertilizer product.
Example 2
1) Preparing a fermented organic fertilizer:
the method comprises the steps of carrying out composting fermentation by using biological straws, human excrement and livestock excrement as fermentation raw materials, covering the raw materials by using a straw mat, fermenting for 35d at 17 ℃ by using a Wang nong Bao biological bacterial manure leavening agent (purchased website: https:// m.tb.cn/h.4uWXWtism ═ 100d8e) purchased from Zheng Zhongzhou Wang nong Bao biological science and technology Limited company, obtaining a fermented organic fertilizer, and drying for 12h at 60 ℃.
2) Weighing 350kg of steel slag, 500kg of fermented organic fertilizer, 60kg of urea, 35kg of diammonium phosphate, 40kg of ammonium sulfate and 15kg of potassium sulfate according to the formula proportion, uniformly stirring and mixing, then adding 50kg of a proper amount of water and 50kg of a binder attapulgite, and granulating to obtain a granular fertilizer product.
Application example 1
The plots with sufficient illumination and convenient drainage and irrigation were divided into 4 equal-area plots, and the fertilizers of examples 1 and 2 were applied respectively, while one plot was not applied as a blank control and the other plot was applied with a conventional fertilizer.
Specifically, the fertilizer is correspondingly applied to 4 blocks 2d before corn planting, corn is sown in 6-month and 20-day blocks in 2020, the corn is watered regularly, the germination rate of seeds is guaranteed, when the corn grows to 3-4 cotyledons, the fertilizer is correspondingly applied to 4 blocks, the corn is harvested in 10-month and 10-day blocks in 2020, the yield is counted, and the counting result is shown in table 1:
TABLE 1 statistics of crop yield
Figure BDA0003116873740000051
Note: the conventional fertilizer comprises a nitrogen fertilizer: phosphate fertilizer: potash fertilizer 10:7
As can be seen from Table 1, the application of the steel slag fertilizer for corn of the present invention can improve the yield of corn well. Compared with the method without applying fertilizer, the yield of the corn is increased by 69.77 to 73.60 percent; compared with the conventional fertilizer, the yield of the corn is increased by 37.35-40.52%.
The embodiments can show that the steel slag fertilizer for corn provided by the invention not only effectively improves the proportion of elements such as nitrogen, phosphorus, sulfur, potassium and the like in the fertilizer, so that the fertilizer product has a compound nutrition effect on corn, can improve the soil structure and adjust the physical and chemical properties of the soil, has no pollution, but also solidifies the soil and increases the fertility, and compared with the situation that no fertilizer is applied, the yield of corn is increased by 69.77-73.60%; and (4) comparing.
Although the present invention has been described in detail with reference to the above embodiments, it is only a part of the embodiments of the present invention, not all of the embodiments, and other embodiments can be obtained without inventive step according to the embodiments, and the embodiments are within the scope of the present invention.

Claims (10)

1. The steel slag fertilizer for the corn is characterized by comprising the following components in percentage by mass: 20-40% of steel slag, 50-60% of fermented organic fertilizer, 5-10% of urea, 2-5% of diammonium phosphate, 2-5% of ammonium sulfate and 1-3% of potassium sulfate.
2. The steel slag fertilizer for the corn as claimed in claim 1, wherein the raw material of the fermented organic fertilizer comprises one or more of biological straw, melon vine, human excrement, livestock and poultry excrement, leaves, weeds, bran vinegar residue, wine residue, bone meal and bagasse.
3. The steel slag fertilizer for the corn as claimed in claim 2, wherein the preparation method of the fermented organic fertilizer comprises composting fermentation.
4. The steel slag fertilizer for the corn is characterized in that the compost fermentation temperature is 15-20 ℃, and the compost fermentation time is 15-60 days.
5. The steel slag fertilizer for the corn as claimed in claim 3, wherein the compost fermentation uses a starter; the leaven comprises one or more of bacillus subtilis, bacillus licheniformis, enterococcus faecalis, yeast, lactobacillus and enzyme preparation.
6. The steel slag fertilizer for corn as claimed in any one of claims 2 to 5, further comprising a fertilizer obtained by drying and fermenting after the compost is fermented.
7. The steel slag fertilizer for the corn as claimed in claim 6, wherein the drying temperature is 50-70 ℃, and the drying time is 10-15 h.
8. The steel slag fertilizer for the corn as claimed in claim 1, wherein the particle size of the steel slag is 30 to 200 meshes.
9. The use of the steel slag fertilizer for corn according to any one of claims 1 to 8 in corn planting.
10. The application of claim 9, wherein the application amount of the steel slag fertilizer for corn is 100-300 kg/mu, and the application frequency is 1-3 times.
CN202110664778.2A 2021-06-16 2021-06-16 Steel slag fertilizer for corn and application thereof Withdrawn CN113173826A (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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