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Foliar fertilizer capable of increasing contents of thioglycoside and selenium in vegetables, and application method thereof

A technology of foliar fertilizer and sulfur content, applied in the direction of fertilization methods, inorganic fertilizers, fertilizer mixtures, etc., can solve the problems of synthesis interference, no obvious change of selenium content, and decrease of glucoraphanin content

Active Publication Date: 2020-01-10
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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  • Foliar fertilizer capable of increasing contents of thioglycoside and selenium in vegetables, and application method thereof
  • Foliar fertilizer capable of increasing contents of thioglycoside and selenium in vegetables, and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Preparation and application method of cabbage foliage 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 treat...

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 capable of simultaneously increasing the contents of thioglycoside and selenium in vegetables, and an application method thereof. When the foliar fertilizeris applied, the concentration of sulfur is 1-4 mM, and the concentration of the selenium is 30-150 MuM. The application frequency of the fertilizer is 7 days, and the application means includes dissolving the foliar fertilizer in water and then applying the liquid to leaf surfaces. Through application of the foliar fertilizer, the content of the total thioglycoside, the content of glucoraphanin and the content of the selenium in cabbages can be effectively increased by 16.4-47.2%, 48.2-84.0% and 6.8-40 times respectively, and the content of the glucoraphanin and the content of organic selenium in cauliflowers can be increased by 27.9-89.5% and 5.1-16.5 times respectively.

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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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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