CN111517854A - Citrus microelement core master batch and preparation method and application thereof - Google Patents
Citrus microelement core master batch and preparation method and application thereof Download PDFInfo
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- CN111517854A CN111517854A CN202010325499.9A CN202010325499A CN111517854A CN 111517854 A CN111517854 A CN 111517854A CN 202010325499 A CN202010325499 A CN 202010325499A CN 111517854 A CN111517854 A CN 111517854A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Abstract
The invention discloses a citrus microelement core master batch which comprises the following components in parts by weight: 10-15 parts of humic acid, 0.5-3 parts of magnesium sulfate, 0.3-0.8 part of borax and 0.02-0.07 part of ammonium molybdate. The citrus microelement core master batch provided by the invention contains humic acid, magnesium sulfate, borax, ammonium molybdate and other medium trace elements, and the substances are mixed according to a certain proportion to prepare the granular microelement core master batch, so that the essential medium trace elements in the growth process of citrus can be supplemented, and the yield and the quality of citrus are improved; the citrus microelement core master batch is convenient to use, the fertilization process is simplified, the nutrition is balanced, the nutrient loss is reduced, the fertilizer efficiency is prolonged, and the fertilizer utilization rate is improved. The invention also provides a preparation method and application of the citrus microelement core master batch.
Description
Technical Field
The invention belongs to the technical field of fertilizer production, and particularly relates to a citrus microelement core master batch as well as a preparation method and application thereof.
Background
China is one of the important native countries of citrus, the cultivation history is long, and the citrus resources and good varieties are rich and are known as the national citrus resource treasury. Since the 20 th century, citrus in China has developed rapidly, and the planting area and the yield all occupy the top of the world. At present, the single and unreasonable cultivation system of fertilizer types causes extreme imbalance of nutrient elements in soil and crops, and the reduction of the yield and the fruit quality of citrus in China is seriously caused. Therefore, efficient and reasonable fertilization becomes an important way for realizing high yield and high quality of the citrus.
Among the 16 nutrient elements needed by plants, the contribution rate of large and medium elements to the crop yield is 90%, the influence rate of trace elements on the quality of crops can reach more than 90%, and the requirements of different crops on the nutrient elements are different. The traditional fertilization of oranges and tangerines, farmers only use the same fertilizer or the same type of fertilizer singly, so that the nutrient elements of the orange crops are seriously unbalanced, and the harm to fruit trees is great after long-term use, so that a series of problems of frequent orange diseases, low yield, flower and fruit dropping, thin fruit taste, serious fruit quality reduction and the like can be caused. The common farmers mostly adopt a mode of adding medium trace elements into single or compound fertilizers to improve the situation, but the farmers need to process and mix the medium trace elements by themselves, the operation is complicated, the time and the labor are wasted, the using amount of the medium trace elements is less, and the medium trace elements are not easy to mix uniformly; and when the powdery raw materials are encountered in the mixing process, dust is easily generated and harms the health of human bodies, the powdery fertilizer is easily lost, the utilization rate of the fertilizer is reduced, and waste is caused.
Therefore, the development of a microelement core master batch for citrus crops is needed, so that the requirement of the citrus on medium and trace elements during growth can be met, the fertilization operation procedure can be simplified, and the utilization rate of the medium and trace elements can be improved.
Disclosure of Invention
The invention aims to overcome the technical defects and provide the citrus microelement core master batch, the fertilizer conditioner can meet the demand of centering and microelement in the growth process of citrus, and the citrus microelement core master batch is granular, so that the fertilizer application operation procedure is simplified, the labor and time are saved, the cost is saved, and the utilization rate of the microelement is improved; the second aspect of the invention aims to provide a preparation method of the citrus microelement core master batch; the third aspect of the invention aims to provide application of the citrus microelement core master batch.
In order to achieve the technical purpose, the technical scheme of the invention provides a citrus microelement core master batch which comprises the following components in parts by weight: 10-15 parts of humic acid, 0.5-3 parts of magnesium sulfate, 0.3-0.8 part of borax and 0.02-0.07 part of ammonium molybdate.
The technical scheme of the invention also provides a preparation method of the citrus microelement core master batch, which comprises the following steps: preparing materials according to the weight part, uniformly mixing all the components, and performing roller granulation at the temperature of 60-80 ℃ and the water content of the materials of 30-40% to prepare a core master batch semi-finished product; and drying, cooling, coating and screening the semi-finished product of the core master batch to obtain the citrus microelement core master batch.
The technical scheme of the invention also provides the application of the citrus microelement core master batch in the citrus special fertilizer.
Compared with the prior art, the invention has the beneficial effects that:
1. the citrus microelement core master batch provided by the invention contains humic acid, magnesium sulfate, borax, ammonium molybdate and other medium trace elements, and the substances are mixed according to a certain proportion to prepare the granular microelement core master batch, so that the essential medium trace elements in the growth process of citrus can be supplemented, and the yield and the quality of citrus are improved; the humic acid molecules have a plurality of free carboxyl groups with negative charges, the carboxyl groups can form a stable complex dissolved in water with cations such as magnesium, molybdenum, boron and the like, the probability that the cations are combined with anions such as hydroxyl, phosphate radical, carbonate radical and the like to form insoluble substances is reduced, the humic acid is combined with medium and trace elements such as magnesium, molybdenum, boron and the like, and the effects of storing, protecting and enhancing the medium and trace elements can be achieved through the effects of adsorption, chelation, complexation, ion exchange and the like, and in addition, the humic acid can regulate the growth metabolism and endogenous hormone level of citrus, so that the growth and development of citrus are further promoted;
2. according to the preparation method of the citrus microelement core master batch, the components are combined according to a scientific proportion, granulation is carried out through the roller, the temperature and the material moisture are controlled, and the preparation of the microelement core master batch from medium microelements such as humic acid, magnesium sulfate, borax and ammonium molybdate is realized, so that the preparation method is convenient to use, the fertilization process is simplified, the nutrition is balanced, the nutrient loss is reduced, the fertilizer efficiency is prolonged, and the fertilizer utilization rate is improved;
3. the citrus microelement core master batch provided by the invention is applied to fertilizers, and can meet the requirements of citrus on nutrients such as organic matters, major elements, medium and trace elements and the like in different soils and different growth periods.
Drawings
FIG. 1 is a production flow chart of preparing a fertilizer special for citrus by using the citrus microelement core master batch of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and 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.
The invention provides a citrus microelement core master batch which comprises the following components in parts by weight: 10-15 parts of humic acid, 0.5-3 parts of magnesium sulfate, 0.3-0.8 part of borax and 0.02-0.07 part of ammonium molybdate, wherein the citrus microelement core master batch is granular.
In some preferred embodiments of the present invention, the citrus microelement core concentrate comprises the following components in parts by weight: 10-15 parts of humic acid, 0.5-3 parts of magnesium sulfate, 0.5 part of borax and 0.05 part of ammonium molybdate.
In some preferred embodiments of the present invention, the citrus microelement core concentrate further comprises clay, and the clay is added to make up to 100 parts by weight of the citrus microelement core concentrate.
In some preferred embodiments of the present invention, the citrus microelement core masterbatch has a particle size of 2 to 4 mm.
The invention also provides a preparation method of the citrus microelement core master batch, which comprises the following steps:
preparing materials according to the weight part, uniformly mixing all the components, and performing roller granulation at the temperature of 60-80 ℃ and the water content of the materials of 30-40% to prepare a core master batch semi-finished product; and drying, cooling, coating and screening the semi-finished product of the core master batch to obtain the citrus microelement core master batch.
In some preferred embodiments of the present invention, the core masterbatch semi-finished product is dried at 200-300 ℃ until the moisture content of the core masterbatch semi-finished product is 15-25%.
In some preferred embodiments of the invention, the dried core master batch semi-finished product is cooled at 40-50 ℃; to avoid agglomeration of the core masterbatch semi-finished product.
In some preferred embodiments of the present invention, the roller rotation speed is 5 to 15r/min during roller granulation.
In the present invention, the specific types of the coating oil and the coating powder are not further limited, and those skilled in the art can select an appropriate coating oil and coating powder according to actual needs.
The invention also provides an application of the citrus microelement core master batch in a citrus special fertilizer, which is characterized in that the citrus microelement core master batch is uniformly mixed with a nitrogen fertilizer, a phosphate fertilizer and a potash fertilizer and then directly applied, wherein the citrus microelement core master batch, the nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer are mixed according to the following parts by weight: 10-15 parts of citrus microelement core master batch, 15-18 parts of nitrogenous fertilizer, 5-10 parts of phosphate fertilizer and 12-19 parts of potash fertilizer. The citrus microelement core master batch, the nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer are mixed according to a certain proportion to prepare the citrus special fertilizer, so that the citrus special fertilizer is suitable for the requirements of citrus on nutrients such as organic matters, major elements, medium trace elements and the like in different soils and different growth periods, and the yield and the quality of the citrus are improved.
In some preferred embodiments of the present invention, the citrus microelement core concentrate, the nitrogen fertilizer, the phosphate fertilizer, and the potassium fertilizer are mixed in the following weight parts: 12.55 parts of citrus microelement core master batch, 18 parts of nitrogenous fertilizer, 7 parts of phosphate fertilizer and 15 parts of potash fertilizer. It should be noted that the nitrogen fertilizer, the phosphorus fertilizer and the potassium fertilizer in the present invention are N, P2O5And K2And (4) metering O.
In some preferred embodiments of the invention, the nitrogen fertilizer is urea; the phosphate fertilizer is one or two of monoammonium phosphate, diammonium phosphate and monopotassium phosphate; the potash fertilizer is one or two of potassium sulfate, potassium chloride and potassium nitrate. By selecting proper types of nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, the absorption rate of the citrus to nitrogen, phosphorus and potassium can be improved.
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.
The experimental methods in the present invention are conventional methods unless otherwise specified. The experimental materials used in the present invention were all purchased from the market unless otherwise specified.
Example 1:
the embodiment 1 of the invention provides a citrus microelement core master batch, which comprises the following components in parts by weight: 10 parts of humic acid, 3 parts of magnesium sulfate, 0.5 part of borax, 0.05 part of ammonium molybdate, and 100 parts of clay are added, and the citrus microelement core master batch is granular.
The citrus microelement core master batch is prepared by the following method:
(1) uniformly mixing humic acid, magnesium sulfate, borax, ammonium molybdate and clay, adding into a roller granulation system, and performing roller granulation on the mixture at the temperature of 70 ℃ and under the condition that the water content of the material is 35% to obtain a core master batch semi-finished product;
(2) adding the core master batch semi-finished product into a drying system, drying at the temperature of 250 ℃, transferring into a drum screening system, screening by a roller screen at the rotating speed of 15r/min, adding the qualified core master batch semi-finished product into a cooling system, cooling at the temperature of 45 ℃, coating, transferring the core master batch semi-finished product into a vibration screening system, screening at the frequency of 2Hz, wherein the qualified product is the core master batch finished product, and the unqualified product enters a drum granulation system again for circular granulation until the product is qualified (whether the product is qualified or not is determined according to the particle size, the particle size is 2-4 mm, the product is qualified, and the product is not qualified). The citrus microelement core master batch prepared by the method is black granular, the strength is 15N, and the water content is 20%.
Example 2:
the embodiment 2 of the invention provides a citrus microelement core master batch, which comprises the following components in parts by weight: 13 parts of humic acid, 2 parts of magnesium sulfate, 0.3 part of borax, 0.02 part of ammonium molybdate, and 100 parts of clay are added, and the citrus microelement core master batch is granular.
The citrus microelement core master batch is prepared by the following method:
(1) uniformly mixing humic acid, magnesium sulfate, borax, ammonium molybdate and clay, adding into a roller granulation system, and performing roller granulation on the mixture at the temperature of 60 ℃ under the condition that the water content of the material is 30% to obtain a core master batch semi-finished product;
(2) adding the core master batch semi-finished product into a drying system, drying at the temperature of 200 ℃, transferring into a drum screening system, screening by a roller screen at the rotating speed of 10r/min, adding the qualified core master batch semi-finished product into a cooling system, cooling at the temperature of 40 ℃, coating, transferring the core master batch semi-finished product into a vibration screening system, screening at the frequency of 1Hz, wherein the qualified product is the core master batch finished product, and the unqualified product enters a drum granulation system again for circular granulation until the qualified product is obtained. The citrus microelement core master batch prepared by the method is black granular, the strength is 15N, and the water content is 18%.
Example 3:
the embodiment 3 of the invention provides a citrus microelement core master batch, which comprises the following components in parts by weight: 15 parts of humic acid, 0.5 part of magnesium sulfate, 0.8 part of borax, 0.07 part of ammonium molybdate, and 100 parts of clay are added, and the citrus microelement core master batch is granular.
The citrus microelement core master batch is prepared by the following method:
(1) uniformly mixing humic acid, magnesium sulfate, borax, ammonium molybdate and clay, adding into a roller granulation system, and performing roller granulation on the mixture at the temperature of 80 ℃ under the condition that the water content of the material is 40% to obtain a core master batch semi-finished product;
(2) adding the core master batch semi-finished product into a drying system, drying at the temperature of 300 ℃, transferring into a drum screening system, screening by a roller screen at the rotating speed of 15r/min, adding the qualified core master batch semi-finished product into a cooling system, cooling at the temperature of 50 ℃, coating, transferring the core master batch semi-finished product into a vibration screening system, screening at the frequency of 3Hz, wherein the qualified product is the core master batch finished product, and the unqualified product enters a drum granulation system again for circular granulation until the qualified product is obtained. The citrus microelement core master batch prepared by the method is black granular, the strength is 15N, and the water content is 25%.
Test example 1:
experimental groups: the citrus microelement core master batch in the embodiment 1 is directly applied after being uniformly mixed with the nitrogenous fertilizer, the phosphate fertilizer and the potash fertilizer, and the substances are uniformly mixed according to 12.55 parts of the citrus microelement core master batch, 18 parts of the nitrogenous fertilizer, 7 parts of the phosphate fertilizer and 15 parts of the potash fertilizer.
Control group: the nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer are mixed evenly and then directly applied, and 18 parts of the nitrogen fertilizer, 7 parts of the phosphate fertilizer and 15 parts of the potash fertilizer are mixed evenly.
The dosage is as follows: the fertilizer was applied to both the experimental group and the control group at a rate of 4 kg/plant.
Test site: ziguo county in Yichang city of Hubei province; test area: 15 mu m; and (3) test crops: navel orange; the test time ranges from 3 months in 2019 to 12 months in 2019.
And (3) test results: the test results are shown in tables 1 and 2.
TABLE 1 Effect of different treatments on biological Properties of Citrus
As can be seen from Table 1, by applying the compound fertilizer added with the citrus microelement core master batch, the number of lateral branches, the number of lateral branch results, the number of lateral branch big fruits and the number of fruits in the lateral branches of citrus are all higher than those of the citrus which is not added, and the number of lateral branch leaves and the number of small fruits in the lateral branches are all lower than those of the citrus which is not added, wherein the number of lateral branches, the number of lateral branch results, the number of large fruits in the lateral branches and the number of fruits in the lateral branches of citrus in an experimental group are respectively increased by 8.22%, 8.15%, 36.36% and 88.24% compared with those of a control group, and the number of lateral branch leaves and the number of small fruits in the lateral branches of citrus in the experimental group are respectively reduced by 5.
TABLE 2 Effect of different treatments on Citrus yield and quality
Note: "gross income" is sales income, Ziguo region high quality fruit 4.6 yuan/kg, commodity fruit 2.8 yuan/kg, non-commodity fruit 1.8 yuan/kg (12 months 15 days price).
As can be seen from Table 2, the yield of the citrus added with the citrus microelement core master batch compound fertilizer is 3040.9 kg/mu, which is 12.02% higher than that of the control group; meanwhile, the sugar degree, the commercial fruit rate and the excellent fruit rate of the Chinese yam are respectively improved by 16.81 percent, 9.21 percent and 3.40 percent compared with those of a control group, so that the average income per mu of hair is 9775.13 yuan, and the income per mu of hair is increased by 1274.96 yuan compared with that of the control group.
Test example 2:
experimental groups: the citrus microelement core master batch in the embodiment 1 is directly applied after being uniformly mixed with the nitrogenous fertilizer, the phosphate fertilizer and the potash fertilizer, and the substances are uniformly mixed according to 12.55 parts of the citrus microelement core master batch, 16 parts of the nitrogenous fertilizer, 5 parts of the phosphate fertilizer and 19 parts of the potash fertilizer.
Control group: the nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer are mixed evenly and then directly applied, and 16 parts of the nitrogen fertilizer, 5 parts of the phosphate fertilizer and 19 parts of the potash fertilizer are mixed evenly.
The dosage is as follows: the fertilizer was applied to both the experimental group and the control group at a rate of 4 kg/plant.
Test site: yongxing county of Hunan province; test area: 15 mu m; and (3) test crops: sugar candy orange; the test time is 1 month in 2018 to 12 months in 2018.
And (3) test results: the test results are shown in tables 3 to 6.
Table 3 improvement effect of applying compound fertilizer added with citrus microelement core masterbatch on various properties of soil
The soil conditions of the harvested soil (0 to 30cm) were evaluated, and the results of the properties of the soil are shown in table 3. As can be seen from table 3, the application of the compound fertilizer added with the citrus microelement core master batch can improve the properties of the soil, compared with the control group, the application of the compound fertilizer added with the citrus microelement core master batch has the advantages that the pH is increased by 3.25%, and the total nitrogen, total phosphorus and total potassium contents of the soil are respectively increased by 15.47%, 8.64% and 1.39% compared with the control group; the compound fertilizer added with the citrus microelement core master batch can be used for activating and improving the content of effective nitrogen, phosphorus and potassium in soil, and compared with a control group, the content of the effective nitrogen, phosphorus and potassium is respectively improved by 22.83%, 36.99% and 22.39%, wherein the content of the effective phosphorus is improved most obviously; by applying the compound fertilizer added with the citrus microelement core master batch, the nutrient condition of microelement-magnesium in soil can be improved, the exchangeable magnesium in the soil is obviously improved, and is improved by 43.51 percent compared with a control group; the silicon-aluminum rate reflects the desilicication and aluminizing degrees of the soil, and the results in table 3 show that the silicon-aluminum rate and the silicon-iron rate of the soil can be improved by 20.83 percent and 17.32 percent respectively by applying the compound fertilizer added with the citrus microelement core master batch compared with a control group; the cation exchange capacity is an important index of the soil fertility preservation capability, and the results in table 3 show that the cation exchange capacity of the soil to be tested can be obviously improved by 31.24% compared with the control group by applying the compound fertilizer added with the citrus microelement core master batch.
TABLE 4 Effect of applying core Master batch Compound Fertilizer with Citrus Trace elements on navel orange production (kg/mu)
TABLE 5 Effect of applying core Master batch Compound Fertilizer with Citrus minor elements added on navel orange quality (soluble solids)
As can be seen from tables 4 and 5, the yield and quality of navel oranges can be remarkably improved by applying the compound fertilizer added with the citrus microelement core master batches. Compared with a conventional fertilization control group, the yield of the navel orange fruits treated by applying the compound fertilizer added with the citrus microelement core master batches is improved by 410.96 kg/mu, the amplification is 15.78%, and the yield is remarkably increased; the analysis result of the quality index soluble solid of the navel orange fruits shows that the soluble solid content of the fruits can be remarkably improved by 6.89% by applying the compound fertilizer added with the citrus microelement core master batch.
TABLE 6 influence of applying core-masterbatch compound fertilizer with citrus microelement on economic benefit of navel orange
Note: the results are calculated by the unit price of navel orange of 5 yuan/kg and the addition of 1.6 yuan/kg of the citrus microelement core master batch compound fertilizer.
From table 6, it can be seen that the application of the compound fertilizer added with the citrus microelement core master batches can improve the navel orange planting benefit, compared with a control group, the yield increase is 2054.83 yuan per mu, the production input ratio is 6.42, and the yield increase effect is obvious.
As can be seen from the test examples 1 and 2, the addition of the citrus microelement core master batch provided by the invention into the compound fertilizer can obviously improve the physicochemical property of soil, improve the yield and the quality of navel oranges and further improve the economic benefit of citrus planting.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The citrus microelement core master batch is characterized by comprising the following components in parts by weight: 10-15 parts of humic acid, 0.5-3 parts of magnesium sulfate, 0.3-0.8 part of borax and 0.02-0.07 part of ammonium molybdate.
2. The citrus microelement core concentrate according to claim 1, wherein the citrus microelement core concentrate further comprises clay, and the clay is added to make up to 100 parts by weight of the citrus microelement core concentrate.
3. The citrus microelement core masterbatch according to claim 1, wherein the citrus microelement core masterbatch has a particle size of 2 to 4 mm.
4. A method of preparing a citrus microelement core concentrate according to any of claims 1 to 3, comprising the steps of: preparing materials according to the weight part, uniformly mixing all the components, and performing roller granulation at the temperature of 60-80 ℃ and the water content of the materials of 30-40% to prepare a core master batch semi-finished product; and drying, cooling, coating and screening the semi-finished product of the core master batch to obtain the citrus microelement core master batch.
5. The method for preparing the citrus microelement core masterbatch according to claim 4, wherein the semi-finished product of the core masterbatch is dried at 200-300 ℃ until the moisture content of the semi-finished product of the core masterbatch is 15-25%.
6. The preparation method of the citrus microelement core masterbatch according to claim 4, wherein the dried core masterbatch semi-finished product is cooled at 40-50 ℃.
7. Use of the citrus microelement core concentrate according to any one of claims 1 to 3 in citrus-specific fertilizers.
8. The application of the citrus microelement core masterbatch in the fertilizer special for citrus as claimed in claim 7, wherein the citrus microelement core masterbatch is directly applied after being uniformly mixed with a nitrogen fertilizer, a phosphate fertilizer and a potassium fertilizer, and the citrus microelement core masterbatch, the nitrogen fertilizer, the phosphate fertilizer and the potassium fertilizer are mixed according to the following weight parts: 10-15 parts of citrus microelement core master batch, 15-18 parts of nitrogenous fertilizer, 5-10 parts of phosphate fertilizer and 12-19 parts of potash fertilizer.
9. The application of the citrus microelement core masterbatch in the fertilizer special for citrus according to claim 7, wherein the citrus microelement core masterbatch, the nitrogen fertilizer, the phosphate fertilizer and the potassium fertilizer are mixed according to the following weight parts: 12.55 parts of citrus microelement core master batch, 18 parts of nitrogenous fertilizer, 7 parts of phosphate fertilizer and 15 parts of potash fertilizer.
10. The use of the citrus microelement core concentrate of claim 8, wherein the nitrogen fertilizer is urea; the phosphate fertilizer is one or two of monoammonium phosphate, diammonium phosphate and monopotassium phosphate; the potash fertilizer is one or two of potassium sulfate, potassium chloride and potassium nitrate.
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