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Method for preventing fruit botrytis cinerea by before-harvesting low-sulfur processing

A technology of sulfur treatment and gray mold, which is applied in the field of preharvest low-sulfur treatment to prevent fruit gray mold, can solve the problems affecting the colonization and infection degree of gray mold, reduce the susceptibility to infection, broad application prospects, and reduce the incidence the effect of the situation

Active Publication Date: 2020-08-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report to clarify that when Botrytis cinerea infects horticultural crops, the sulfur content in the fruit tissue will affect the colonization and infection degree of Botrytis cinerea. Whether Botrytis cinerea will use the sulfur in the fruit for its own infection process has not yet Studied

Method used

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  • Method for preventing fruit botrytis cinerea by before-harvesting low-sulfur processing
  • Method for preventing fruit botrytis cinerea by before-harvesting low-sulfur processing
  • Method for preventing fruit botrytis cinerea by before-harvesting low-sulfur processing

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Cultivate strawberries in the field, apply urea 3.1kg / hm during strawberry cultivation 2 , potassium sulfate 3.0kg / hm2 . During the whole cultivation period, no sulfur element was contained in the remaining applied fertilizers, and the applied amount was the same as in Comparative Example 1.

Embodiment 2

[0035] Cultivate strawberries in the field, apply urea 3.1kg / hm during strawberry cultivation 2 , potassium chloride 1.3kg / hm 2 . During the whole cultivation period, no sulfur element was contained in the remaining applied fertilizers, and the applied amount was the same as in Comparative Example 1.

[0036] In Comparative Example 1, Example 1 and Example 2, the mass numbers of the total N source and K source brought in by the independent variable under each fertilizer application scheme are the same, all of which are N source 1.5kg / hm 2 , K source 1.3kg / hm 2 . However, the applied amount of sulfate radical brought in by the fertilizer combination in comparative example 1 is 6.9kg / hm 2 , the applied amount of sulfate radical brought in by the fertilizer combination in embodiment 1 is 1.7kg / hm 2 , No sulfate radicals are brought into the fertilizer combination in Example 2. During the whole cultivation period, the other applied fertilizers did not contain sulfur element,...

Embodiment 3

[0041] Cultivate tomatoes in the field, apply urea 1383kg / hm during tomato cultivation 2 , potassium sulfate 120.0kg / hm 2 , potassium chloride 333.7kg / hm 2 . During the whole cultivation period, no sulfur element was contained in the remaining applied fertilizers, and the applied amount was the same as in Comparative Example 2.

[0042] Since the sulfate content needed for tomato growth is more than that of strawberry, the fertilizer combination in tomato in Example 3 still retains a certain sulfate content to maintain the normal growth of crops. Among them, the mass numbers of the total N source and K source under each fertilizer application scheme in Comparative Example 2 and Example 3 are the same, both being N source 785.1kg / hm 2 , K source 403.8kg / hm 2 . Yet the amount of sulfate radical that fertilizer combination is brought into in comparative example 2 is 495.9kg / hm 2 , in embodiment 3, because the sulfate radical application amount that fertilizer combination is...

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Abstract

The invention discloses a method for preventing fruit botrytis cinerea by before-harvesting low-sulfur processing. The method comprises the following steps of: in a fruit crop plantation period, lowering an application amount of a low-sulfur fertilizer to prevent the fruit botrytis cinerea; and metering the application amount of a sulfur-containing fertilizer by the application amount of sulfate radicals, wherein during the fruit crop plantation period, the application amount of the sulfur-containing fertilizer is 0-100 kg / hm<2>, and the content of sulfate radicals in surface layer soil is 5-100 mg / kg. According to the method, the application of the sulfur-containing fertilizer is controlled in the fruit plantation process, the content of the sulfur in the fruit is lowered, so that a susceptible degree of the fruit for the botrytis cinerea can be lowered, and an incidence rate of the fruit botrytis cinerea is lowered.

Description

technical field [0001] The invention relates to the field of agricultural cultivation technology, in particular to a method for preventing fruit gray mold by preharvest low-sulfur treatment. Background technique [0002] Botrytis cinerea can infect more than 200 kinds of plants, such as strawberries, tomatoes, grapes and other fruits. It ranks second among the top 10 fungal diseases in the world and has a wide range of effects on horticultural crops. cause huge economic losses. Botrytis cinerea is a typical lethal pathogen. After it invades the host body, it triggers the programmed death of host cells, and the fruit infected by Botrytis cinerea will rot obviously. Botrytis cinerea is most destructive to mature or senescent tissues of dicot hosts. When the physiology of the host changes and the environment is not conducive to the germination and growth of Botrytis, the fungus can remain quiescent for a considerable period of time before decaying tissue. Therefore, Botrytis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01G22/05A01C21/00
CPCA01C21/005A01G13/00A01G22/05
Inventor 徐艳群罗自生李莉童志超章晓晨
Owner ZHEJIANG UNIV
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