CN114524689B - Foliar fertilizer for reducing cadmium content of peanuts and preparation method and application thereof - Google Patents
Foliar fertilizer for reducing cadmium content of peanuts and preparation method and application thereof Download PDFInfo
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- CN114524689B CN114524689B CN202210201340.5A CN202210201340A CN114524689B CN 114524689 B CN114524689 B CN 114524689B CN 202210201340 A CN202210201340 A CN 202210201340A CN 114524689 B CN114524689 B CN 114524689B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/40—Fabaceae, e.g. beans or peas
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention belongs to the technical field of agricultural fertilizer preparation, and particularly relates to a foliar fertilizer for reducing peanut cadmium content, and a preparation method and application thereof. The invention provides a foliar fertilizer for reducing cadmium content in peanuts, which comprises the following components in parts by weight: 12 to 14 portions of zinc sulfate, 3 to 3.5 portions of monopotassium phosphate and 3 to 3.5 portions of brown sugar. The foliar fertilizer can effectively reduce the cadmium content of peanut kernels, and has the advantages of low cost, simple operation and no negative influence on the farmland environment.
Description
Technical Field
The invention belongs to the technical field of agricultural fertilizer preparation, and particularly relates to a foliar fertilizer for reducing cadmium content in peanuts, and a preparation method and application thereof.
Background
Cadmium is a metal element which is toxic to human health, with the rapid development of industrialization, farmland pollution problems caused by sewage irrigation, unqualified pesticide input and the like become serious day by day, cadmium enters human bodies through the enrichment of food chains, the damage to livers, kidneys and the like is serious, osteoporosis and softening can be caused, and the health of human beings is seriously threatened. Cadmium is more easily absorbed from the soil by crops and contaminates crops and fruits than other heavy metals. The peanuts are important oil and food crops in China, the eating proportion is over 40 percent along with the improvement of the living standard of people, and the peanuts tend to increase year by year, so that the peanut has important significance on reducing the cadmium content in peanut kernels for the health of people.
At the present stage, most researches focus on the influence of the change of soil conditions on the cadmium absorption of crops, and the researches on reducing the influence of the cadmium absorption of plants by spraying foliar fertilizers are less. In addition, in the prior art, the crops studied on reducing the absorption of heavy metal cadmium by spraying the foliar fertilizer are mainly lettuce, rice, pakchoi and the like, and the foliar fertilizer specially used for reducing the cadmium content of peanut kernels is lacked in the prior art. Therefore, a foliar fertilizer special for reducing the cadmium content of peanut kernels is urgently needed.
Disclosure of Invention
The invention aims to provide a foliar fertilizer for reducing cadmium content in peanuts, which has the advantages of low cost, simple operation and no negative influence on farmland environment, and can effectively reduce the cadmium content in peanut kernels.
The invention provides a foliar fertilizer for reducing cadmium content in peanuts, which comprises the following components in parts by weight: 12 to 14 portions of zinc sulfate, 3 to 3.5 portions of monopotassium phosphate and 3 to 3.5 portions of brown sugar.
The invention also provides application of the foliar fertilizer in the scheme in reducing the cadmium content of peanuts.
Preferably, the reducing the cadmium content of the peanuts comprises reducing the cadmium content of peanut kernels.
Preferably, the foliar fertilizer is mixed with water and then sprayed on peanut foliar surfaces.
Preferably, the mass ratio of the foliar fertilizer to the water is (18-21): (30 to 35).
Preferably, the spraying time is that the fertilizer is applied at the beginning of the flowering phase of the peanuts, and the beginning of the flowering phase of the peanuts is 35-50 days after the peanuts are planted.
Preferably, the spraying is carried out on a sunny day, and the spraying time is 9 am or 4 pm later.
Preferably, the spraying times are 2-3 times, and the interval time between two adjacent spraying times is 6-7 days.
Preferably, the application amount of the foliar fertilizer is 18-21 g/mu.
The invention has the beneficial effects that: the invention provides a foliar fertilizer for reducing peanut cadmium content, which comprises the following components in parts by weight: 12-14 g of zinc sulfate, 3-3.5 g of monopotassium phosphate and 3-3.5 g of brown sugar. The zinc sulfate participates in synthesis of auxin in crops and promotes growth of stems and leaves, and when the peanuts absorb heavy metal elements in soil in the growth process, the metal element 'zinc' on the outer edge is sprayed, so that the plants can be effectively prevented from absorbing other heavy metal elements; the potassium dihydrogen phosphate can promote the stems of the peanuts to be strong, promote the peanuts to bloom and also can enhance the disease resistance of the peanuts; the brown sugar can promote the penetration capability of peanut leaves on foliar fertilizer, improve the metabolism level of peanuts and also improve the stress resistance capability of the peanuts. The results of the examples show that the cadmium content of the peanut kernels of the Jihua 16 peanut variety in the example 1 is 0.44mg/kg in the blank treatment process without spraying the foliar fertilizer, and the cadmium content of the peanut kernels of the foliar fertilizer is 0.29mg/kg in the spraying process. In example 2, the cadmium content of the peanut kernels subjected to blank treatment and sprayed with the foliar fertilizer of the invention is 0.522mg/kg, and the cadmium content of the peanut kernels sprayed with the foliar fertilizer of the invention is 0.298mg/kg; in example 2, the cadmium content of the peanut kernels of the blank treated peanut without the foliar fertilizer of the invention sprayed on the Fuhua 26 peanut variety is 0.961mg/kg, and the cadmium content of the peanut kernels sprayed with the foliar fertilizer of the invention is 0.416mg/kg. Therefore, the foliar fertilizer for reducing the cadmium content of the peanuts can effectively reduce the cadmium content of the peanut kernels, and the foliar fertilizer has the advantages of low cost, simplicity in operation and no negative influence on the farmland environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a graph of cadmium content measurements of blank and test treated peanut kernels of example 1 and comparative example 1.
FIG. 2 is a graph showing the cadmium content measurements of the peanut kernels of the blank treatment and the test treatment in example 2.
FIG. 3 is a graph showing the cadmium content measurements of the peanut kernels of the blank treatment and the test treatment of comparative example 2.
FIG. 4 is a graph showing the determination of cadmium content in peanut kernels for comparative example 3 blank and test treatments.
FIG. 5 is a graph showing the cadmium content measurements of the peanut kernels of the blank treatment and the test treatment of comparative example 4.
Detailed Description
The invention provides a foliar fertilizer for reducing cadmium content in peanuts, which comprises the following components in parts by weight: 12 to 14 portions of zinc sulfate, 3 to 3.5 portions of monopotassium phosphate and 3 to 3.5 portions of brown sugar.
In the invention, the foliar fertilizer for reducing the cadmium content of the peanut provided by the invention preferably comprises 12 to 14 parts of zinc sulfate, more preferably 13 to 14 parts, and even more preferably 14 parts by weight. In the present invention, the source of the zinc sulfate is not particularly limited, and a conventional commercially available product may be used. In the invention, the zinc sulfate participates in the synthesis of auxin in crops to promote the growth of stems and leaves, and when the peanuts absorb heavy metal elements in soil in the growth process, the metal element 'zinc' at the outer edge is sprayed to effectively prevent plants from absorbing other heavy metal elements.
In the invention, the foliar fertilizer for reducing the cadmium content of the peanut provided by the invention preferably comprises 3-3.5 parts by weight of monopotassium phosphate, and more preferably 3.5 parts by weight of monopotassium phosphate. In the present invention, the source of the potassium dihydrogen phosphate is not particularly limited, and a conventional commercially available product may be used. In the invention, the potassium dihydrogen phosphate can promote the stems of the peanuts to be strong, promote the peanuts to bloom and also enhance the disease resistance of the peanuts.
In the invention, the foliar fertilizer for reducing the cadmium content of the peanut provided by the invention preferably comprises 3-3.5 parts of brown sugar, and more preferably 3.5 parts of brown sugar. In the present invention, the source of the brown sugar is not particularly limited, and a conventional commercially available product may be used. In the invention, the brown sugar can promote the penetration capability of peanut leaves on foliar fertilizer, improve the metabolism level of peanuts and also improve the stress resistance capability of peanuts.
The invention also provides application of the foliar fertilizer in the scheme in reducing the cadmium content of peanuts.
In the present invention, said reducing peanut cadmium content preferably comprises reducing peanut kernel cadmium content.
In the invention, the foliar fertilizer is preferably mixed with water and then sprayed on the peanut foliar. In the present invention, the source of water is not particularly limited, and is preferably farmland water that meets the national standards.
In the invention, the mass ratio of the foliar fertilizer to the water is preferably (18-21): (30 to 35), more preferably (19 to 21): (30 to 35), more preferably 21:30.
in the invention, the spraying time is preferably the fertilization starting at the peanut flowering beginning stage. In the invention, the peanut flowering beginning period is preferably the date when less than 50% of peanuts blossom in the whole area accumulate. The initial flowering period of the peanuts is preferably 35-50 d, more preferably 40-45 d, and even more preferably 43d after the peanuts are planted. In the invention, the peanut is fertilized in the initial flowering phase, so that the peanut is sprayed before the peanut forms kernels, and the absorption of cadmium in soil in the peanut kernel needle forming process is reduced.
In the present invention, the spraying is preferably performed on a sunny day, and the spraying time is preferably 9 am or 4 pm. In the present invention, the spraying time is preferably after sunrise or before sundown, and the spraying time can be appropriately adjusted according to the actual sunrise and sundown in different regions. In the present invention, the spraying time is selected to avoid dormancy of peanut leaves around noon.
In the present invention, the number of spraying is preferably 2 to 3, more preferably 3, and the interval between two adjacent spraying is preferably 6 to 7 days, more preferably 7 days.
In the invention, the spraying times of the foliar fertilizer and the interval time between two adjacent spraying are selected because the duration of the peanut is about 30 days from the initial flowering phase to the later flowering phase of the peanut, and the spraying from the initial flowering phase is to be carried out before the peanut forms fruit needles, so that cadmium is prevented from being absorbed by plants from soil in the fruit needle forming process; the spraying for many times is also used for preventing the plants from absorbing cadmium from the soil in the process of forming the fruit needles; the selection of the interval time between two adjacent spraying is beneficial to the peanut leaves to absorb the foliar fertilizer.
In the invention, the application amount of the foliar fertilizer is preferably 18-21 g/mu, more preferably 19-21 g/mu, and even more preferably 21 g/mu.
For further illustration of the present invention, the foliar fertilizer for reducing cadmium content in peanut, the preparation method and application thereof provided by the present invention are described in detail below with reference to the drawings and examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The test site is selected from a certain farmland in Fumon county of Fuxin county, liaoning province, the pH value of the soil is 5.49, the background value of cadmium in the soil is 0.211mg/kg, a Jihua 16 peanut variety is adopted, sowing is carried out in 26 days in 5 months, and the sowing is carried out in 7 days in 7 months and 14 days in 7 months respectively, and 8 to 9 am. 13g of zinc sulfate monohydrate, 3g of monopotassium phosphate and 3g of brown sugar are mixed with 35L of clear water, and then the mixture is sprayed on peanut leaf surfaces in one mu of peanut field. The blank group was also sprayed with 35L of clear water as a control.
Uniformly managing according to local planting habits, and applying base fertilizers of 20kg of diammonium phosphate, 5kg of urea, 7.5kg of potassium sulfate or 40kg of compound fertilizers before soil preparation. Fertilizers produced by regular manufacturers can not be used, and fertilizers containing heavy metal elements such as cadmium and lead can not be used; and (4) topdressing the soil in the flowering period of the peanuts, wherein 15kg of urea is topdressed per mu in combination with intertillage. Green, low-toxicity and residue-free pesticides are selected for preventing peanut diseases, insect pests and weeds, and proper pesticides are selected according to the generated diseases, insect pests and weeds, and fertilizers such as cadmium, lead and the like are not contained. Peanut kernels are harvested at 9 months and 29 days.
Example 2
The test site is selected in a certain farmland in Fumon county of Fuxin City, liaoning province, the pH value of soil is 6.7, the background value of cadmium in soil is 0.211mg/kg, fuhua 20d-14 (the strain adopts 6805 for flower cultivation and HnFxP-2 for breeding) and 26 peanut variety of Fuhua are adopted as test varieties, the test varieties are sowed in 30 days in 5 months, and 14g of zinc sulfate monohydrate, 3.5g of monopotassium phosphate and 3.5g of brown sugar are respectively sowed in 12 days in 7 months, 19 days in 7 months and 26 days in 7 months between 8 am and 9 am after being mixed with 30L of clear water, the peanut is sprayed on leaf surfaces of peanuts, the clear water is sprayed on a control field to serve as a control, and other cultivation management is uniformly managed according to local planting habits. The management method is the same as that of example 1. Harvesting peanut kernels in 10 months and 8 days.
Comparative example 1
The zinc sulfate monohydrate was replaced with ferrous sulfate and the other conditions were the same as in example 1.
Comparative example 2
18g of zinc sulfate monohydrate, 3.5g of monopotassium phosphate and 3.5g of brown sugar are mixed with 30L of clear water, and then the mixture is sprayed on peanut leaf surfaces, and the other conditions are the same as in example 2.
Comparative example 3
9g of zinc sulfate monohydrate, 3.5g of monopotassium phosphate and 3.5g of brown sugar are mixed with 30L of clear water, and then the mixture is sprayed on peanut leaf surfaces, and the other conditions are the same as in example 2.
Comparative example 4
The zinc sulfate monohydrate was replaced with ferrous sulfate and the other conditions were the same as in example 2.
Application example 1
The cadmium content in the peanut kernels of the blank treatment and test treatment groups of examples 1-2 and comparative examples 1-4 is measured, a random sampling method is adopted for sampling during measurement, 10 peanut kernels are sampled at each point, 5 peanut kernels are mixed, 20 seeds are selected from the samples for grinding after the peanuts are peeled, and the cadmium content of the peanut kernels is measured by a GB 5009.15-2014 method. The results are shown in the following table 1, and the results of measurement of example 1 and comparative example 1 are shown in fig. 1, the results of measurement of example 2 are shown in fig. 2, the results of measurement of comparative example 2 are shown in fig. 3, the results of measurement of comparative example 3 are shown in fig. 4, and the results of measurement of comparative example 4 are shown in fig. 5.
TABLE 1 determination of cadmium content in peanut kernels of examples 1-2 and comparative examples 1-4
As can be seen from the results in table 1 and fig. 1 to 5, the results in example 1 and example 2 show that: after the foliar fertilizer is sprayed, the cadmium content of peanut kernels can be effectively reduced, and the foliar fertilizer is low in cost and has no negative influence on the farmland environment. According to the results of the example 1 and the comparative example 1 (figure 1), the effect of spraying the zinc sulfate monohydrate is better than that of spraying the ferrous sulfate, in order to further verify the effect of the ferrous sulfate, in the comparative example 4, the ferrous sulfate is used for spraying the Fuzhou 20d-14 and the Fuhua 26 varieties, the cadmium content of the peanut kernel exceeds the national standard of 0.5mg/kg, and the effect is not obvious.
According to the results of the example 2 (figure 2) and the comparative example 2 (figure 3), the comparative example 3 (figure 4) and the comparative example 4 (figure 5), the cadmium content in the peanut kernels of the control treatment groups in the example 2, the comparative example 2 and the comparative example 3 exceeds the national standard of 0.5mg/kg, the cadmium content in the peanut kernels of the Fuhua 26 after the foliar fertilizer is sprayed in the comparative example 2 and the comparative example 3 exceeds the national standard of 0.5mg/kg, and the effect of reducing the cadmium content in the peanut kernels after the foliar fertilizer is sprayed in the comparative example 2 and the comparative example 3 is not large. Therefore, after the content of the zinc sulfate monohydrate in the foliar fertilizer is changed, the application effect of the foliar fertilizer is reduced.
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 (5)
1. The application of the foliar fertilizer in reducing the cadmium content of peanut kernels comprises the following steps: the foliar fertilizer is mixed with water and then sprayed on peanut leaf surfaces;
the foliar fertilizer consists of the following components in parts by weight: 12 to 14 parts of zinc sulfate, 3 to 3.5 parts of monopotassium phosphate and 3 to 3.5 parts of brown sugar;
the mass ratio of the foliar fertilizer to water is (18 to 21): (30 to 35).
2. The application of claim 1, wherein the spraying time is that fertilization starts at the peanut flowering beginning stage, and the peanut flowering beginning stage is 35 to 50d after peanut planting.
3. The use according to claim 1 or 2, wherein the spraying is carried out on a sunny day, and the spraying is carried out before 9 am or after 4 pm.
4. The application of the paint as claimed in claim 1 or 2, wherein the spraying is performed for 2 to 3 times, and the time interval between two adjacent spraying is 6 to 7 days.
5. The application as claimed in claim 1 or 2, wherein the application amount of the foliar fertilizer is 18 to 21g/mu.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201340.5A CN114524689B (en) | 2022-03-03 | 2022-03-03 | Foliar fertilizer for reducing cadmium content of peanuts and preparation method and application thereof |
| ZA2022/06469A ZA202206469B (en) | 2022-03-03 | 2022-06-10 | Foliar fertilizer for reducing cadmium content in peanut, preparation method and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201340.5A CN114524689B (en) | 2022-03-03 | 2022-03-03 | Foliar fertilizer for reducing cadmium content of peanuts and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN114524689A CN114524689A (en) | 2022-05-24 |
| CN114524689B true CN114524689B (en) | 2023-02-24 |
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| CN202210201340.5A Active CN114524689B (en) | 2022-03-03 | 2022-03-03 | Foliar fertilizer for reducing cadmium content of peanuts and preparation method and application thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797976A (en) * | 1988-09-09 | 1998-08-25 | Yamashita; Thomas T. | Method and composition for promoting and controlling growth of plants |
| CN102060619A (en) * | 2010-12-17 | 2011-05-18 | 西安谦坤商务咨询管理有限公司 | Organic zinc fertilizer |
| CN102311284A (en) * | 2010-07-01 | 2012-01-11 | 山东省花生研究所 | Foliar fertilizer for peanut and method for applying foliar fertilizer |
| CN105152810A (en) * | 2015-08-27 | 2015-12-16 | 广西喷施宝股份有限公司 | Method for reducing content of cadmium in crops |
| CN106748350A (en) * | 2017-04-06 | 2017-05-31 | 山东省花生研究所 | A kind of multifunctional peanut foliar fertilizer and its application process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7906129B2 (en) * | 2004-03-04 | 2011-03-15 | Thomas T. Yamashita | Methods for treating a plant exposed to a phytotoxicant |
| CN109734516A (en) * | 2019-03-05 | 2019-05-10 | 湖南嘉诚农业科技有限公司 | One kind selenium-rich containing amino acid drop cadmium foliar fertilizer and application method |
-
2022
- 2022-03-03 CN CN202210201340.5A patent/CN114524689B/en active Active
- 2022-06-10 ZA ZA2022/06469A patent/ZA202206469B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797976A (en) * | 1988-09-09 | 1998-08-25 | Yamashita; Thomas T. | Method and composition for promoting and controlling growth of plants |
| CN102311284A (en) * | 2010-07-01 | 2012-01-11 | 山东省花生研究所 | Foliar fertilizer for peanut and method for applying foliar fertilizer |
| CN102060619A (en) * | 2010-12-17 | 2011-05-18 | 西安谦坤商务咨询管理有限公司 | Organic zinc fertilizer |
| CN105152810A (en) * | 2015-08-27 | 2015-12-16 | 广西喷施宝股份有限公司 | Method for reducing content of cadmium in crops |
| CN106748350A (en) * | 2017-04-06 | 2017-05-31 | 山东省花生研究所 | A kind of multifunctional peanut foliar fertilizer and its application process |
Non-Patent Citations (3)
| Title |
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| "Zinc Sulphate and Boron-Based Foliar Fertilizer Effect on Growth, Yield, Minerals, and Heavy Metal Composition of Groundnut (Arachis hypogaea L) Grown on an Alfisol";Christopher Aboyeji et al.;《International Journal of Agronomy》;20191009;第2019卷;第1-7页 * |
| "叶面肥对农作物阻镉效应机制研究进展";张梅华等;《大麦与谷类科学》;20170420;第34卷(第03期);第1-5页 * |
| 花生锌吸收分配特性及对土壤耕作措施的响应特征;孙学武等;《花生学报》;20200615(第02期);第36-42页 * |
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| ZA202206469B (en) | 2022-08-31 |
| CN114524689A (en) | 2022-05-24 |
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