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CN-121974750-A - Nutritional regulator for regulating mature period of citrus fruits and application thereof

CN121974750ACN 121974750 ACN121974750 ACN 121974750ACN-121974750-A

Abstract

The invention discloses a nutrition regulator for regulating the ripening period of citrus fruits and application thereof. The nutrition regulator consists of 100 parts of potassium nitrate, monopotassium phosphate, magnesium sulfate, sodium ferric ethylenediamine tetraacetate, sodium zinc ethylenediamine tetraacetate, boric acid, ammonium molybdate, gibberellin, abscisic acid and diatomite. The invention also provides a preparation method of the nutrition regulator and application thereof in regulating the ripening period of citrus fruits, wherein the application mode is that the preparation is diluted by 600-800 times and sprayed on leaf surfaces in the period of 40-50 mm in diameter of citrus fruits, and the preparation is sprayed once every 7 days and twice continuously. The invention realizes bidirectional accurate regulation and control of the mature period of the citrus through the synergistic effect of mineral nutrient elements and low-concentration hormone, can promote the fruit to mature for 7-15 days in advance or after the fruit is mature, can obviously improve the sugar acid ratio and the color of the fruit, simultaneously avoids the problems of tree potential decline and quality degradation caused by single hormone treatment, and has the characteristics of high efficiency, safety and simple and convenient operation.

Inventors

  • CHEN YONGCHUN
  • Bai Xiaoran

Assignees

  • 华宁天名经贸有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. The nutrition regulator for regulating the ripening period of the citrus fruits is characterized by comprising, by mass, 30-50 parts of potassium nitrate, 20-40 parts of monopotassium phosphate, 10-20 parts of magnesium sulfate, 2-5 parts of sodium ferric ethylenediamine tetraacetate, 1-3 parts of sodium zinc ethylenediamine tetraacetate, 0.5-1.5 parts of boric acid, 0.05-0.15 part of ammonium molybdate, 0.01-0.03 part of gibberellin, 0.005-0.015 part of abscisic acid and 100 parts of diatomite.
  2. 2. A nutritional regulator for regulating ripening period of citrus fruit according to claim 1, wherein the effective iron content of sodium iron ethylenediamine tetraacetate is not less than 13.0% and the effective zinc content of sodium zinc ethylenediamine tetraacetate is not less than 15.0%.
  3. 3. The nutritional regulator for regulating the ripening period of citrus fruits according to claim 1, wherein the weight portion of potassium nitrate in the nutritional regulator is 35-45 parts, the weight portion of potassium dihydrogen phosphate is 25-35 parts, and the weight portion of magnesium sulfate is 12-18 parts.
  4. 4. The nutritional regulator for regulating the ripening period of citrus fruits according to claim 1, wherein the amount of gibberellin is 0.015 to 0.025 parts by mass and the amount of abscisic acid is 0.008 to 0.012 parts by mass.
  5. 5. A nutritional modulator for modulating the ripening period of citrus fruits as claimed in claim 1, wherein the nutritional modulator is in the form of a wettable powder.
  6. 6. A method of preparing a nutritional modulator for modulating the ripening period of citrus fruits as claimed in claim 1, comprising the steps of: S1, proportioning, namely weighing potassium nitrate, monopotassium phosphate, magnesium sulfate, sodium ferric ethylenediamine tetraacetate, sodium zinc ethylenediamine tetraacetate, boric acid and ammonium molybdate according to a proportion; S2, crushing and mixing, namely putting the solid raw materials into a mixer, crushing the solid raw materials until the particle size is less than or equal to 150 microns, and uniformly mixing the solid raw materials to prepare basic powder; s3, adding an auxiliary agent, namely adding diatomite with a formula amount into the basic powder, and continuously and uniformly mixing; s4, loading active substances, namely dissolving gibberellin and abscisic acid into absolute ethyl alcohol, uniformly spraying the gibberellin and abscisic acid on the surface of a mixed material by adopting a spraying method, and uniformly stirring; S5, drying and screening, namely placing the materials into a fluidized bed dryer, controlling the air inlet temperature to be 55 ℃ plus or minus 5 ℃, drying until the moisture content of the materials is less than or equal to 2%, crushing the materials by a jet mill, and then sieving the crushed materials by a 80-mesh standard sieve to obtain the finished product.
  7. 7. The method of claim 6, wherein the absolute ethanol is used in the step S4 in an amount to completely dissolve gibberellin and abscisic acid and uniformly spray the solution, and the spraying speed is 0.5% -1% of the volume of the solution per minute.
  8. 8. The method for preparing a nutritional regulator for regulating ripening period of citrus fruit according to claim 6, wherein the jet mill in step S5 has a pulverizing pressure of 0.7 mpa and a classifying wheel rotation speed of 2800 rpm.
  9. 9. Use of a nutritional modulator according to claims 1-5 for modulating the ripening period of citrus fruits for modulating the length of the ripening period of citrus fruits.
  10. 10. The application of the nutrition regulator for regulating the ripening period of the citrus fruits according to claim 1, wherein the application mode is foliar spraying, and the specific operation is that the nutrition regulator is diluted 600 times to 800 times and uniformly sprayed on the front and back surfaces of the citrus leaves and the surfaces of young fruits in the period that the diameter of the citrus fruits reaches 40 mm to 50 mm, and the spraying frequency is that the spraying is carried out once every 7 days, and the spraying is carried out twice continuously.

Description

Nutritional regulator for regulating mature period of citrus fruits and application thereof Technical Field The invention relates to the technical field of fruit tree cultivation technology and plant growth regulator, in particular to a nutrition regulator for regulating the mature period of citrus fruits and application thereof. Background Citrus is the first fruit in the world and occupies an important place in agricultural production in China. The maturity of citrus fruit is one of the key factors that determine its commercial value and economic benefit. Early maturing oranges are susceptible to low temperature freezing injury to reduce yield and quality, and late maturing oranges can compete with flower buds in the next season for nutrients, so that the phenomenon of the next year is serious, and meanwhile, the risk of low price due to centralized marketing is also faced. At present, methods for regulating and controlling the mature period of citrus are mainly divided into two major types, namely a physical method and a chemical method. In the aspect of a physical method, the local temperature of an orchard is improved mainly by means of covering a film, paving a reflecting film or fumigating, and the like, so that the aim of delaying or early maturing is fulfilled. However, the methods have the defects of complicated operation, high labor intensity, high cost, obvious limitation by weather conditions and the like, and are difficult to popularize and apply in large-area production. In terms of chemical methods, regulation has traditionally been largely dependent on a single chemical plant growth regulator. For example, gibberellin (GA) can delay fruit ripening, but can easily cause fruit peel thickening and flavor lightening after long-term use, and abscisic acid (ABA) can promote fruit ripening, but has unstable effect and is extremely liable to cause defoliation and fruit drop. In addition, the prior art often ignores the synergistic effect of mineral nutrient elements on the physiological process of fruit ripening. In fact, potassium participates in sugar accumulation and transport in fruits, phosphorus promotes energy metabolism, boron influences carbohydrate transport, and deficiency or imbalance of these nutrients leads to disturbance of fruit ripening process. Therefore, the existing regulation means are either too high in cost and inconvenient to operate, or have the risks of large side effects and quality degradation. At present, a comprehensive technical scheme which can effectively regulate and control the mature period and also can give consideration to the quality of fruits, is environment-friendly and is easy to operate is needed in the market. Disclosure of Invention The invention aims to solve the technical problem of providing a special nutrition regulator which can safely and stably advance or delay the ripening period of citrus fruits and can avoid quality degradation and physiological disorder caused by a single chemical regulator, and an application method thereof. The technical scheme includes that the nutrition regulator for regulating and controlling the ripening period of citrus fruits comprises, by mass, 30-50 parts of potassium nitrate, 20-40 parts of monopotassium phosphate, 10-20 parts of magnesium sulfate, 2-5 parts of ferric sodium ethylenediamine tetraacetate, 1-3 parts of zinc sodium ethylenediamine tetraacetate, 0.5-1.5 parts of boric acid, 0.05-0.15 part of ammonium molybdate, 0.01-0.03 part of gibberellin, 0.005-0.015 part of abscisic acid and 100 parts of diatomite. As a further scheme of the invention, the effective iron content of the sodium iron ethylenediamine tetraacetate is more than or equal to 13.0 percent, and the effective zinc content of the sodium zinc ethylenediamine tetraacetate is more than or equal to 15.0 percent. The invention further provides a further scheme that the nutrition regulator comprises 35-45 parts by weight of potassium nitrate, 25-35 parts by weight of monopotassium phosphate and 12-18 parts by weight of magnesium sulfate. As a further scheme of the invention, the nutrition regulator comprises 0.015-0.025 parts of gibberellin and 0.008-0.012 parts of abscisic acid. As a further scheme of the invention, the nutrition regulator is in a wettable powder formulation. A method for preparing a nutritional regulator for regulating the ripening period of citrus fruits, comprising the following steps: S1, proportioning, namely weighing potassium nitrate, monopotassium phosphate, magnesium sulfate, sodium ferric ethylenediamine tetraacetate, sodium zinc ethylenediamine tetraacetate, boric acid and ammonium molybdate according to a proportion; S2, crushing and mixing, namely putting the solid raw materials into a mixer, crushing the solid raw materials until the particle size is less than or equal to 150 microns, and uniformly mixing the solid raw materials to prepare basic powder; s3, adding an auxiliary agent, namely adding diatomite with a form