CN114230391A - Multi-element water-soluble fertilizer composition - Google Patents

Multi-element water-soluble fertilizer composition Download PDF

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CN114230391A
CN114230391A CN202111458243.6A CN202111458243A CN114230391A CN 114230391 A CN114230391 A CN 114230391A CN 202111458243 A CN202111458243 A CN 202111458243A CN 114230391 A CN114230391 A CN 114230391A
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sodium
fertilizer
chelated
calcium
manganese
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程明
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Beijing Shengshi Sixie Agricultural Technology Co ltd
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Beijing Shengshi Sixie Agricultural Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • 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
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • 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
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes
    • 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
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a multi-element water-soluble fertilizer composition, which contains multiple elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum, chlorine, silicon, nickel and optionally cobalt required by crop growth, wherein the elements such as calcium, iron, manganese, copper, zinc, nickel and optionally cobalt are in chelated states. The multi-element water-soluble fertilizer composition can be quickly dissolved in irrigation water, so that the problems of blockage of an irrigation system and influence on crop absorption caused by precipitation reaction of certain metal ions and acid radical ions of a conventional fertilizer are solved; meanwhile, the fertilizer composition is convenient to transport, store and apply, can obviously improve the crop yield, and has high application value.

Description

Multi-element water-soluble fertilizer composition
Technical Field
The invention relates to a multi-element water-soluble fertilizer. Specifically, the invention relates to a water-soluble fertilizer containing multiple elements of carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum, chlorine, silicon, nickel and cobalt, which can be quickly dissolved in irrigation water (meeting the water quality standard GB5084-2005) for farmland irrigation, and solves the problems that the conventional fertilizer blocks an irrigation system and influences crop absorption due to precipitation reaction of certain metal ions and acid ions (such as calcium ions and phosphate radicals, calcium ions and sulfate radicals, zinc ions and phosphate radicals).
Background
Mineral nutrition required by crops must be dissolved in water to be absorbed and utilized by crop roots. Various fertilizers applied to the soil are finally dissolved in the soil solution to be absorbed by the root system of the crop. Therefore, the water-soluble fertilizer capable of being completely dissolved in water is more beneficial to the efficient utilization of crops.
The introduction of micro-irrigation technology in China starts in 1974, and through more than forty years of development, the application area of micro-irrigation is rapidly expanded. The micro-irrigation area in the country in 2019 reaches nearly 9425 ten thousand acres. The development of the micro-irrigation technology requires that the fertilization technology is adapted to the micro-irrigation technology, and in order to avoid blocking pipelines and douches of a micro-irrigation system, a water-soluble fertilizer which can be completely dissolved in water must be applied, so that the rapid development of the water-soluble fertilizer in recent years is strongly promoted.
Essential nutrient elements of crops comprise essential macroelements and essential microelements. The essential macroelements include carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S) and silicon (Si). The necessary trace elements include iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), boron (B), molybdenum (Mo), chlorine (Cl) and nickel (Ni). The essential elements are elements which are necessary for the normal growth and development of plants and cannot be replaced by other elements. In addition, beneficial elements such as cobalt (Co) are also present, which are elements that promote crop growth but are not essential to crops.
The nutrient elements in the fertilizer need to be dissolved in water firstly, and then can be absorbed and utilized by the root system of crops. However, the compounds containing the above-mentioned nutrient elements may mutually undergo precipitation reaction in water to generate water-insoluble substances, which may result in either ineffective absorption by crops or blockage of micro-irrigation water pipes or irrigation emitters. The existing method for solving the problems is as follows: the two compounds which are likely to undergo a precipitation reaction are applied separately. For example, potassium sulfate and calcium nitrate react to form calcium sulfate precipitate. One method is to apply fertilizers on alternate days, wherein the fertilizer containing potassium sulfate is applied on the first day and the fertilizer containing calcium nitrate is applied on the second day, so that the fertilizers are prevented from precipitating in irrigation water. Another approach is to separate the high concentration fertilizer mother liquor using different mother liquor drums. For example, the calcium nitrate solution is placed in one mother liquid barrel, and the potassium sulfate is placed in the other mother liquid barrel. The mother liquor is diluted and then mixed in irrigation water, so that the product of the concentration of various ions in the irrigation solution is smaller than the solubility product of the ions, and precipitation is avoided. Although the existing method can solve the problem of blocking a micro-irrigation pipeline or an irrigation emitter, the following problems still exist: 1. two fertilizer preparation operations or two fertilizer barrels are needed, which is relatively complicated; 2. users need to accurately record the fertilizer dosage every time (or every barrel) so as to ensure that the proportion of nutrients in the fertilizer is suitable for crops to be cultivated; 3. the fertilizer still can react in the soil to generate precipitates, which influence the absorption of the fertilizer.
In view of the above problems in the prior art, there is a need to develop a water-soluble fertilizer which contains both essential nutrients and beneficial elements for crops and is soluble in irrigation water.
Disclosure of Invention
In order to solve the problems, the invention provides a formula of a multi-element water-soluble fertilizer. Specifically, the invention provides a formula of a water-soluble fertilizer containing multiple elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum, chlorine, silicon, nickel and optionally cobalt, wherein the elements such as calcium, iron, manganese, copper, zinc, nickel and optionally cobalt are in a chelated state, so that the fertilizer can be rapidly dissolved in irrigation water.
The invention provides a multi-element water-soluble fertilizer composition, which is characterized in that: contains carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum, chlorine, silicon, nickel and optionally cobalt, wherein the calcium, iron, manganese, copper, zinc, nickel and optionally cobalt are in chelated form.
In some embodiments, the source of the calcium element is a chelated calcium, such as an organic acid chelated calcium, a sugar alcohol chelated calcium, other types of chelated calcium, or any combination thereof. In some embodiments, other types of chelated calcium are, for example, sodium calcium ethylenediaminetetraacetic acid (EDTA-CaNa)2) Calcium sodium iminodisuccinate (IDHA-CaNa)2) And diethylene triamine pentaacetic acid calcium sodium salt (DTPA-CaNa)2) ethylenediamine-N 'N' -2-hydroxyphenylacetic acid calcium sodium salt (EDDHA-CaNa)2) Calcium glutamate chelate, calcium xylitol chelate, or any combination thereof.
In some embodiments, the source of elemental iron is chelated ironSuch as organic acid chelated iron, sugar alcohol chelated iron, other types of chelated iron, or any combination thereof. In some embodiments, other types of chelated iron are, for example, sodium iron ethylenediaminetetraacetate (EDTA-FeNa)2) And imino sodium iron disuccinate (IDHA-FeNa)2) Sodium iron diethylenetriaminepentaacetate (DTPA-FeNa), and ethylenediamine-N 'N' -2-sodium iron hydroxyphenylacetate (EDDHA-FeNa)2) Iron glutamate chelate, iron xylitol chelate, or any combination thereof.
In some embodiments, the source of the manganese element is a manganese chelate, such as an organic acid manganese chelate, a sugar alcohol manganese chelate, other types of manganese chelates, or any combination thereof. In some embodiments, other types of chelated manganese are, for example, sodium manganese ethylenediaminetetraacetate (EDTA-MnNa)2) Manganese sodium iminodisuccinate (IDHA-MnNa)2) Manganese sodium diethylenetriamine pentaacetate (DTPA-MnNa)2) Sodium manganese ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-MnNa)2) Manganese glutamate chelate, manganese xylitol chelate, or any combination thereof.
In some embodiments, the source of elemental copper is chelated copper, such as organic acid chelated copper, alditol chelated copper, other types of chelated copper, or any combination thereof. In some embodiments, other types of chelated copper are, for example, sodium copper ethylenediaminetetraacetate (EDTA-CuNa)2) Copper sodium iminodisuccinate (IDHA-CuNa)2) And sodium copper diethylenetriaminepentaacetate (DTPA-CuNa)2) ethylenediamine-N 'N' -2-sodium copper hydroxyphenylacetate (EDDHA-CuNa)2) Glutamic acid chelated copper, xylitol chelated copper, or any combination thereof.
In some embodiments, the source of the zinc element is a zinc chelate, such as an organic acid zinc chelate, a sugar alcohol zinc chelate, other types of zinc chelates, or any combination thereof. In some embodiments, other types of chelated zinc are, for example, sodium zinc ethylenediaminetetraacetate (EDTA-ZnNa)2) Imino sodium disuccinate (IDHA-ZnNa)2) And sodium zinc diethylenetriaminepentaacetate (DTPA-ZnNa)2) Sodium zinc ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-ZnNa)2) Zinc glutamate chelate, zinc xylitol chelate or any combination thereof.
In some embodiments, the source of the nickel element is a nickel chelate, such as an organic acid nickel chelate, a sugar alcohol nickel chelate, other types of nickel chelates, or any combination thereof. In some embodiments, other types of chelated nickel are, for example, sodium nickel ethylenediaminetetraacetate (EDTA-NiNa)2)And nickel sodium iminodisuccinate (IDHA-NiNa)2) And diethylene triamine pentaacetic acid nickel sodium salt (DTPA-NiNa)2) And sodium nickel ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-NiNa)2) Nickel glutamate chelate, nickel xylitol chelate, or any combination thereof.
In some embodiments, the source of cobalt element is a cobalt chelate, such as an organic acid cobalt chelate, a sugar alcohol cobalt chelate, other types of cobalt chelates, or any combination thereof. In some embodiments, other types of chelated cobalt are, for example, sodium cobalt ethylenediaminetetraacetate (EDTA-CoNa)2) Cobalt iminodisuccinate (IDHA-CoNa)2) And diethylene triamine pentaacetic acid cobalt sodium salt (DTPA-CoNa)2) Sodium cobalt ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-CoNa)2) Glutamic acid chelated cobalt, xylitol chelated cobalt, or any combination thereof.
In some embodiments, the source of elemental nitrogen is or includes potassium nitrate, urea, magnesium nitrate, monoammonium phosphate, ammonium chloride, ammonium sulfate, or any combination thereof. In some embodiments, the source of phosphorus is or includes monoammonium phosphate, monopotassium phosphate, or a combination thereof. In some embodiments, the source of potassium element is or includes potassium chloride, potassium nitrate, potassium sulfate, potassium dihydrogen phosphate, or any combination thereof. In some embodiments, the source of magnesium element is or includes magnesium nitrate, magnesium sulfate, magnesium chloride, or any combination thereof. In some embodiments, the source of elemental sulfur is or includes magnesium sulfate, potassium sulfate, ammonium sulfate, or any combination thereof. In some embodiments, the source of elemental boron is or includes boric acid, borax, or a combination thereof. In some embodiments, the source of elemental molybdenum is or includes ammonium molybdate, sodium molybdate, or a combination thereof. In some embodiments, the source of elemental chlorine is or includes potassium chloride, ammonium chloride, magnesium chloride, or any combination thereof. In some embodiments, the source of elemental silicon is or includes sodium silicate.
In some embodiments, the multi-element water-soluble fertilizer composition of the present invention comprises or consists of urea, monopotassium phosphate, potassium nitrate, magnesium sulfate, sodium calcium ethylenediaminetetraacetate, sodium silicate, magnesium chloride, sodium iron ethylenediaminetetraacetate, sodium manganese ethylenediaminetetraacetate, sodium copper ethylenediaminetetraacetate, sodium zinc ethylenediaminetetraacetate, boric acid, ammonium molybdate, sodium nickel ethylenediaminetetraacetate, and optionally sodium cobalt ethylenediaminetetraacetate.
In some embodiments, the multi-element water-soluble fertilizer compositions of the present invention comprise about 15-25% (e.g., about 18-23%, about 19%) urea, about 15-25% (e.g., about 18-23%, about 20%) monopotassium phosphate, about 30-40% (e.g., about 32-37%, about 35%) potassium nitrate, about 1-10% (e.g., about 2-7%, about 5%) magnesium sulfate, about 10-20% (e.g., about 18-23%, about 20%) calcium sodium ethylenediaminetetraacetate, about 1-8% (e.g., about 2-6%, about 3%) sodium nitrate, about 0.5-2% (e.g., about 0.8-1.5%, about 1%) magnesium chloride, about 0.5-2% (e.g., about 0.8-1.5%, about 1%) sodium iron ethylenediaminetetraacetate, about 0.1-0.8% (e.g., about 0.3-0.6%,), About 0.4%) sodium manganese ethylenediaminetetraacetate, about 0.05-0.2% (e.g., about 0.08-0.15%, about 0.1%) sodium copper ethylenediaminetetraacetate, about 0.1-0.3% (e.g., about 0.15-0.25%, about 0.2%) sodium zinc ethylenediaminetetraacetate, about 0.1-0.3% (e.g., about 0.15-0.25%, about 0.2%) boric acid, about 0.01-0.03% (e.g., about 0.015-0.025%, about 0.02%) ammonium molybdate, about 0.01-0.08% (e.g., about 0.02-0.06%, about 0.04%) sodium nickel ethylenediaminetetraacetate, and optionally about 0.01-0.08% (e.g., about 0.02-0.06%, about 0.04%) sodium cobalt ethylenediaminetetraacetate (all by mass fraction), or consist thereof.
In some embodiments, the multi-element water-soluble fertilizer composition of the present invention comprises or consists of about 19% urea, about 20% monopotassium phosphate, about 35% potassium nitrate, about 5% magnesium sulfate, about 15% calcium sodium ethylenediaminetetraacetate, about 3% sodium silicate, about 1% magnesium chloride, about 1% sodium iron ethylenediaminetetraacetate, about 0.4% sodium manganese ethylenediaminetetraacetate, about 0.1% sodium copper ethylenediaminetetraacetate, about 0.2% sodium zinc ethylenediaminetetraacetate, about 0.2% boric acid, about 0.02% ammonium molybdate, about 0.04% sodium nickel ethylenediaminetetraacetate, and optionally about 0.04% sodium cobalt ethylenediaminetetraacetate (all mass fractions).
In some embodiments, the multi-element water-soluble fertilizer composition of the present invention comprises or consists of: the nitrogen fertilizer (counted by N) accounts for about 5 to 30 percent of the total composition by mass; phosphate fertilizer (with P)2O5By weight) in the whole composition is about 3-40%; potassium fertilizer (with K)2Calculated as O), the mass fraction in the whole composition is about 10-40%; calcium fertilizer (calculated as CaO) with the mass fraction of about 0.5-5 percent in the whole composition; magnesium fertilizer (calculated by MgO) with the mass fraction of about 0.3-3% in the whole composition; the sulfur fertilizer (calculated by S) accounts for about 0.3 to 3 percent of the total composition; the iron fertilizer (calculated by Fe) accounts for about 0.03 to 0.2 percent of the total weight of the composition; the manganese fertilizer (calculated by Mn) accounts for about 0.015 to 0.1 percent of the mass fraction of the whole composition; the copper fertilizer (calculated by Cu) accounts for about 0.007 to 0.015 percent of the total composition by mass; the zinc fertilizer (calculated by Zn) accounts for about 0.01 to 0.1 percent of the total composition by mass; the boron fertilizer (calculated by B) accounts for about 0.01-0.05 percent of the total composition by mass; molybdenum fertilizer (calculated by Mo) accounting for about 0.001-0.007% of the total composition by mass; the mass fraction of the chlorine fertilizer (calculated as Cl) in the whole composition is about 0.1-5%; silicon fertilizer (calculated by Si), the mass fraction of the whole composition is about 0.005-2%; nickel fertilizer (calculated as Ni) with the mass fraction of about 0.0005-0.001% in the whole composition; and optionally, cobalt fertilizer (calculated as Co) in an amount of about 0.0005% to 0.001% by weight of the total composition.
In some embodiments, the multi-element water-soluble fertilizer compositions of the present invention are in the form of granules, powders, concentrated liquids or ready-to-use liquids or other forms.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, the term "optionally cobalt" means that the multi-element water-soluble fertilizer composition of the invention may or may not contain cobalt; similarly, "optionally sodium cobalt ethylenediaminetetraacetate" means that the multi-element water-soluble fertiliser compositions of the present invention may or may not comprise sodium cobalt ethylenediaminetetraacetate, and so on. Unless the context indicates otherwise.
In the present invention, when referring to "the elements calcium, iron, manganese, copper, zinc, nickel and optionally cobalt are all in chelated form" or similar expressions, it is meant that the sources of the elements calcium, iron, manganese, copper, zinc, nickel and cobalt in the multi-element water-soluble fertilizer composition of the present invention are chelated calcium, chelated iron, chelated manganese, chelated copper, chelated zinc, chelated nickel and chelated cobalt, respectively, for example, they are ethylenediaminetetraacetic acid calcium sodium, ethylenediaminetetraacetic acid iron sodium, ethylenediaminetetraacetic acid manganese sodium, ethylenediaminetetraacetic acid copper sodium, ethylenediaminetetraacetic acid zinc sodium, ethylenediaminetetraacetic acid nickel sodium and optionally ethylenediaminetetraacetic acid cobalt sodium, respectively. Unless the context indicates otherwise.
The multi-element water-soluble fertilizer can be quickly dissolved in irrigation water (meeting the water quality standard GB5084-2005) of farmland irrigation, and solves the problem that the absorption of crops is influenced due to the blockage of an irrigation system caused by the precipitation reaction of certain metal ions and acid radical ions in the conventional fertilizer. Meanwhile, the fertilizer is convenient to transport, store and apply, can obviously improve the crop yield, and has high application value. The present invention will be further described with reference to the following examples.
Examples
The scope of the present invention is not limited to any particular embodiment described herein. The following examples are provided for illustration only.
Example 1 cucumber multielement water soluble fertilizer formula and field application effect
1.1 test materials and methods
1.1.1 general description of the test
The test point is located in the great Xingdistrict of Beijing city, the cultivation facility is a plastic greenhouse, and the area of the test land is 1.3 mu.
1.1.2 test materials
The tested crop is cucumber, the variety is 'Hanxiu 3-6', the cucumber is fixedly planted in 3 and 16 months in 2019, and the cucumber is pulled in 8 and 20 months in 2019. All the treated base fertilizers are the same and are 8-square organic fertilizers per mu.
1.1.3 test design
The test set up 2 treatments of multi-element water soluble fertilizer and control fertilizer, each treatment set up 5 replicates, arranged in random blocks. Treatment 1 was a multi-element water soluble fertilizer (see table 1) compared to a commercially available water soluble fertilizer, and the nutrient content of each treatment was shown in table 2. The field adopts drip irrigation fertilization, and the fertilizer application device is a Venturi fertilizer applicator. The fertilizer application date and amount are shown in table 3.
Figure BDA0003388654550000081
Figure BDA0003388654550000091
1.2 test results
Compared with a control, the number of the cucumber single-plant cucumber strips applied with the multi-element water-soluble fertilizer by drip irrigation has no significant difference. However, the weight of the melon was significantly higher than the control, and was increased by 0.022 kg on average compared to the control (table 4).
The cucumber yield per mu obtained by applying the multi-element water-soluble fertilizer by drip irrigation is 9728.6 kg, and the yield is remarkably increased by 762 kg compared with a control (Table 5).
TABLE 4 number of cucumber plants treated with different water soluble fertilizers and weight of cucumber plants
Figure BDA0003388654550000101
Injecting: different lower case letters represent significant differences, the statistical analysis adopts independent sample T test, and P is 0.05.
TABLE 5 cucumber yields (kg/mu) for different treatments
Figure BDA0003388654550000102
Injecting: different lower case letters represent the significance of the difference, the statistical analysis was performed using independent sample T test, and P was taken to be 0.05.

Claims (8)

1. A multi-element water-soluble fertilizer composition characterized by: containing carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum, chlorine, silicon, nickel and optionally cobalt, wherein the calcium, iron, manganese, copper, zinc, nickel and optionally cobalt are in chelated form.
2. The multi-element water-soluble fertilizer composition of claim 1, wherein:
the calcium source is organic acid chelated calcium, sugar alcohol chelated calcium, and calcium sodium ethylene diamine tetraacetate (EDTA-CaNa)2) Calcium sodium iminodisuccinate (IDHA-CaNa)2) And diethylene triamine pentaacetic acid calcium sodium salt (DTPA-CaNa)2) ethylenediamine-N 'N' -2-hydroxyphenylacetic acid calcium sodium salt (EDDHA-CaNa)2) Calcium glutamate chelate, calcium xylitol chelate or any combination thereof;
the iron source is organic acid chelated iron, sugar alcohol chelated iron, and sodium iron ethylenediaminetetraacetate (EDTA-FeNa)2) And imino sodium iron disuccinate (IDHA-FeNa)2) Sodium iron diethylenetriaminepentaacetate (DTPA-FeNa), and ethylenediamine-N 'N' -2-sodium iron hydroxyphenylacetate (EDDHA-FeNa)2) Iron glutamate chelate, iron xylitol chelate or any combination thereof;
the manganese element is derived from organic acid chelated manganese, sugar alcohol chelated manganese, and sodium manganese ethylenediaminetetraacetate (EDTA-MnNa)2) Manganese sodium iminodisuccinate (IDHA-MnNa)2) Manganese sodium diethylenetriamine pentaacetate (DTPA-MnNa)2) Sodium manganese ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-MnNa)2) Manganese glutamate chelate, manganese xylitol chelate, or any combination thereof;
the copper element is derived from organic acid chelated copper, alditol chelated copper, and ethylenediaminetetraacetic acid copper sodium (EDTA-CuNa)2) Copper sodium iminodisuccinate (IDHA-CuNa)2) Divinyl benzene threeAmine pentaacetic acid copper sodium salt (DTPA-CuNa)2) ethylenediamine-N 'N' -2-sodium copper hydroxyphenylacetate (EDDHA-CuNa)2) Glutamic acid chelated copper, xylitol chelated copper, or any combination thereof;
the zinc element is derived from organic acid chelated zinc, sugar alcohol chelated zinc, and ethylene diamine tetraacetic acid zinc sodium (EDTA-ZnNa)2) Imino sodium disuccinate (IDHA-ZnNa)2) And sodium zinc diethylenetriaminepentaacetate (DTPA-ZnNa)2) Sodium zinc ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-ZnNa)2) Zinc glutamate chelate, zinc xylitol chelate or any combination thereof;
the nickel source is organic acid chelated nickel, sugar alcohol chelated nickel, and ethylene diamine tetraacetic acid nickel sodium (EDTA-NiNa)2)And nickel sodium iminodisuccinate (IDHA-NiNa)2) And diethylene triamine pentaacetic acid nickel sodium salt (DTPA-NiNa)2) And sodium nickel ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-NiNa)2) Nickel glutamate chelate, nickel xylitol chelate or any combination thereof; and/or
The cobalt element is derived from organic acid chelated cobalt, sugar alcohol chelated cobalt, and ethylene diamine tetraacetic acid cobalt sodium (EDTA-CoNa)2) Cobalt iminodisuccinate (IDHA-CoNa)2) And diethylene triamine pentaacetic acid cobalt sodium salt (DTPA-CoNa)2) Sodium cobalt ethylenediamine-N 'N' -2-hydroxyphenylacetate (EDDHA-CoNa)2) Glutamic acid chelated cobalt, xylitol chelated cobalt, or any combination thereof.
3. The multi-element water-soluble fertilizer composition according to claim 1 or 2, characterized in that: the nitrogen source is potassium nitrate, urea, magnesium nitrate, ammonium dihydrogen phosphate, ammonium chloride, ammonium sulfate or any combination thereof; the source of the phosphorus element is ammonium dihydrogen phosphate, potassium dihydrogen phosphate or the combination thereof; the source of the potassium element is potassium chloride, potassium nitrate, potassium sulfate, potassium dihydrogen phosphate or any combination thereof; the source of the magnesium element is magnesium nitrate, magnesium sulfate, magnesium chloride or any combination thereof; the source of the sulfur element is magnesium sulfate, potassium sulfate, ammonium sulfate or any combination thereof; the source of the boron element is boric acid, borax or a combination thereof; the source of the molybdenum element is ammonium molybdate, sodium molybdate or the combination thereof; the source of the chlorine element is potassium chloride, ammonium chloride, magnesium chloride or any combination thereof; and/or the source of the silicon element is sodium silicate.
4. The multi-element water-soluble fertilizer composition according to claim 3, characterized in that: contains or consists of urea, monopotassium phosphate, potassium nitrate, magnesium sulfate, sodium calcium ethylenediaminetetraacetate, sodium silicate, magnesium chloride, sodium iron ethylenediaminetetraacetate, sodium manganese ethylenediaminetetraacetate, sodium copper ethylenediaminetetraacetate, sodium zinc ethylenediaminetetraacetate, boric acid, ammonium molybdate, sodium nickel ethylenediaminetetraacetate and optionally sodium cobalt ethylenediaminetetraacetate.
5. The multi-element water-soluble fertilizer composition according to claim 4, wherein: the fertilizer comprises, by mass, 15-25% of urea, 15-25% of monopotassium phosphate, 30-40% of potassium nitrate, 1-10% of magnesium sulfate, 10-20% of calcium sodium ethylene diamine tetraacetate, 1-8% of sodium silicate, 0.5-2% of magnesium chloride, 0.5-2% of iron sodium ethylene diamine tetraacetate, 0.1-0.8% of manganese sodium ethylene diamine tetraacetate, 0.05-0.2% of copper sodium ethylene diamine tetraacetate, 0.1-0.3% of zinc sodium ethylene diamine tetraacetate, 0.1-0.3% of boric acid, 0.01-0.03% of ammonium molybdate, 0.01-0.08% of nickel sodium ethylene diamine tetraacetate and optionally 0.01-0.08% of cobalt sodium ethylene diamine tetraacetate.
6. The multi-element water-soluble fertilizer composition according to claim 5, characterized in that: the composition comprises, in mass fraction, 19% urea, 20% monopotassium phosphate, 35% potassium nitrate, 5% magnesium sulfate, 15% calcium sodium ethylenediaminetetraacetate, 3% sodium silicate, 1% magnesium chloride, 1% ferric sodium ethylenediaminetetraacetate, 0.4% manganese sodium ethylenediaminetetraacetate, 0.1% copper sodium ethylenediaminetetraacetate, 0.2% zinc sodium ethylenediaminetetraacetate, 0.2% boric acid, 0.02% ammonium molybdate, 0.04% nickel sodium ethylenediaminetetraacetate, and optionally 0.04% cobalt sodium ethylenediaminetetraacetate.
7. The multi-element water-soluble fertilizer composition according to claim 1 or 2, characterized in that: comprises the followingThe components or the components of the following components: the nitrogen fertilizer accounts for 5 to 30 percent of the mass fraction of N in the whole composition; phosphate fertilizer, with P2O5The mass fraction in the whole composition is 3-40%; potash fertilizer, in K2The mass fraction of O in the whole composition is 10-40%; the calcium fertilizer accounts for 0.5 to 5 percent of the total weight of the composition in terms of CaO; the magnesium fertilizer accounts for 0.3 to 3 percent of the total composition by weight of MgO; the sulfur fertilizer accounts for 0.3 to 3 percent of the total composition by mass percent of S; the iron fertilizer accounts for 0.03 to 0.2 percent of the total weight of the composition in terms of Fe; the manganese fertilizer comprises 0.015-0.1% of Mn in the whole composition; the copper fertilizer comprises 0.007-0.015% of Cu by mass; the zinc fertilizer accounts for 0.01 to 0.1 percent of the mass fraction of Zn in the whole composition; the boron fertilizer accounts for 0.01 to 0.05 percent of the mass fraction of B in the whole composition; the molybdenum fertilizer accounts for 0.001 to 0.007 percent of the mass fraction of Mo in the whole composition; the mass fraction of the chlorine fertilizer in the whole composition is 0.1-5 percent in terms of Cl; the silicon fertilizer comprises 0.005-2% of the total composition by mass percent in terms of Si; the nickel fertilizer comprises 0.0005 to 0.001 percent of Ni in the total composition; and optionally, the cobalt fertilizer accounts for 0.0005 to 0.001 percent of the total composition by mass of Co.
8. The multi-element water-soluble fertilizer composition according to claim 1 or 2, characterized in that: in the form of granules, powders, concentrated liquids or ready-to-use liquids.
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