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A kind of foliar fertilizer and application method for improving glucosinolate and selenium content in vegetables

A foliar fertilizer, application method technology, applied in the direction of fertilization method, inorganic fertilizer, fertilizer mixture, etc., can solve the problems of decreasing glucoraphanin content, increasing selenium content without obvious change, increasing glucoraphanin content, etc. The effect of glucoraphanin content

Active Publication Date: 2022-04-12
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing cauliflower cultivation techniques mostly use measures such as induction of exogenous hormones, fertilizer application, and environmental improvement to increase the content of glucoraphanin or selenium in cauliflower curds. Caused the decline of glucoraphanin content, or increased the content of glucoraphanin at the same time, there was no obvious change to the increase of selenium content
While improving the selenium content in cauliflower, its glucoraphanin content is significantly increased, but there is no effective cultivation method at present.
[0007] Although various existing cultivation techniques are used to increase the content of selenium in cauliflower and at the same time increase its glucoraphanin content, because sulfur and selenium have the same absorption and metabolism pathway in plants, the synthesis of sulfur-containing compounds and selenium-containing compounds is different. There will be interference between them, causing the content of glucoraphanin to decrease while the content of selenium is increased, or the content of glucoraphanin to be increased while the content of selenium has no obvious change

Method used

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  • A kind of foliar fertilizer and application method for improving glucosinolate and selenium content in vegetables
  • A kind of foliar fertilizer and application method for improving glucosinolate and selenium content in vegetables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Preparation and application method of cabbage foliar fertilizer

[0021] 1. The formula of cabbage leaf fertilizer is shown in Table 1.

[0022] Table 1 Experimental treatment and effect

[0023] group Sulfur level (mM) Selenium level (μM) T1 (control) 1 0 T2 1 50 T3 1 100 T4 1 150 T5 4 0 T6 4 50 T7 4 100 T8 4 150

[0024] Among them, the source of sulfur element: magnesium sulfate (containing 26.67% sulfur, with a purity of 95%); the source of selenium element: commercially available sodium selenite (98% purity).

[0025] 2. Application method

[0026] Carry out foliage fertilization to cabbage with the foliar fertilizer of above-mentioned preparation, application method is as follows:

[0027] Cabbage seeds were purchased from the Changsha Seed Market, sown on September 1, 2016, planted on September 25, 2016, and harvested on November 25, 2016. Three replicates were set up for each treatm...

Embodiment 2

[0038] Embodiment 2 The preparation and application method of cauliflower foliar fertilizer

[0039] 1. The formula of foliar fertilizer is shown in Table 4.

[0040] Table 4 Experimental treatment and effect

[0041] group Sulfur level (mM) Selenium level (μM) T1 (control) 1 0 T2 1 50 T3 1 100 T4 1 150 T5 4 0 T6 4 50 T7 4 100 T8 4 150

[0042] Among them, the source of sulfur element: magnesium sulfate (containing 26.67% sulfur, with a purity of 95%); the source of selenium element: commercially available sodium selenite (98% purity).

[0043] 2. Application method

[0044] Carry out foliage fertilization to cauliflower with the foliar fertilizer of above-mentioned preparation, application method is as follows:

[0045]Cauliflower seeds were purchased from the Changsha Seed Market, sown on September 1, 2016, planted on September 25, 2016, and harvested on December 5, 2016. Three replicates were set up for ...

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Abstract

The invention discloses a foliar fertilizer and a method capable of simultaneously increasing the contents of glucosinolate and selenium in vegetables. When the foliage fertilizer is applied, the sulfur concentration is 1-4mM, and the selenium concentration is 30-150μM. At the same time, the invention also provides that the application frequency of the fertilizer is 7 days, and the application method is foliar application after dissolving in water. By applying the foliar fertilizer of the present invention, the total glucoraphanin content in cabbage can be effectively increased by 16.4-47.2%, the glucoraphanin content is 48.2-84.0, and the selenium content is 6.8-40 times; the glucoraphanin content in cauliflower can be increased by 27.9-89.5%, The content of organic selenium is 5.1~16.5 times.

Description

technical field [0001] The invention relates to a foliar fertilizer and an application method for improving the nutritional quality of vegetables, belonging to the field of fertilizers. Background technique [0002] Glucosinolates (Glucosinolates, GLs, referred to as glucosinolates) are important active substances in cruciferous crops. This substance is a kind of sulfur-containing anionic hydrophilic plant secondary metabolites, and its degradation product—isothiocyanate Esters (isothiocyanates, ITCs) have good anti-cancer and anti-cancer effects. So far, more than 100 kinds of glucosinolates have been found in cruciferous vegetables. According to their structural characteristics, glucosinolates can be divided into three categories: aliphatic glucosinolates, aromatic glucosinolates and indole glucosinolates. Glucoraphanin (4-methylsulfinylbutyl glucoraphanin, Glucoraphanin) belongs to aliphatic glucosinolates, and its degradation product—Sulforaphane (Sulforaphane) is by fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00C05G1/00
CPCA01C21/005C05D5/00C05D9/02
Inventor 王军伟黄科吴秋云
Owner HUNAN AGRICULTURAL UNIV
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