Anti-sunscald spray-whitening method for citrus

A citrus and whitening technology, applied in the field of citrus management, can solve the problems that cannot be widely promoted, the toxicity of the glue is unknown, and many labor costs, etc., and achieve the effects of reducing the occurrence of diseases and insect pests, promoting the value of the market, and improving economic benefits

Inactive Publication Date: 2018-09-28
广西桂洁农业开发有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to prevent the occurrence of citrus sunburn, farmers often use stickers, artificial whitening, and sunshade nets to prevent and control sunburn. Because the above methods require a lot of labor and will generate more labor costs when used in large-scale orchards , and the artificial whitening method mostly adopts the "lime + glue" formula to smear the fruit to prevent sunburn. Although it has a good protective effect, due to the unknown toxicity of the glue, new problems have arisen about the food safety of the fruit.
Therefore, the above technology cannot be widely promoted

Method used

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  • Anti-sunscald spray-whitening method for citrus

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] A citrus anti-sunburn whitening method, comprising the following steps:

[0026] (1) Preparation of spray white paint: by weight parts, put 10 parts of cyanobacteria into the jet impingement processor, treat it for 5min under the condition of 0.5MPa with the jet pressure, then put it together with 35 parts of polyvinyl acetate into the reactor, start the stirrer, stir at a speed of 150r / min, heat up to 50°C, and then drip the initiator of a mixture of peroxide initiator and ascorbic acid at a speed of 2mL / min, when the initiator After the dripping is completed, add 2 parts of sodium hydroxide, 50 parts of light calcium carbonate and 1000 parts of deionized water, and continue stirring for 20 minutes, and the finished spray white paint is finished;

[0027] (2) White spraying of the whole tree: In the sunny days from the end of June to the beginning of July every year and the highest temperature > 30 ℃, use the finished white spray paint to spray the whole tree white for...

Embodiment 2

[0029] A citrus anti-sunburn whitening method, comprising the following steps:

[0030] (1) Preparation of spray white paint: by weight parts, 14 parts of blue-green algae are put into the jet impingement processor, and it is 0.7MPa to process 8min under the condition of jetting pressure, put together with 35 parts of polyvinyl acetate then into the reactor, start the stirrer, stir at a speed of 200r / min, heat up to 51°C, and then drip the initiator of a mixture of peroxide initiator and ascorbic acid at a speed of 2mL / min, when the initiator After the dripping is completed, add 3 parts of sodium hydroxide, 70 parts of light calcium carbonate and 1000 parts of deionized water, and continue stirring for 22 minutes to obtain the finished spray white paint;

[0031] (2) White spraying of the whole tree: In the sunny days from the end of June to the beginning of July every year and the highest temperature > 30 ℃, use the finished white spray paint to spray the whole tree white for...

Embodiment 3

[0033] A citrus anti-sunburn whitening method, comprising the following steps:

[0034] (1) Preparation of spray white paint: by weight parts, 13 parts of blue-green algae are put into the jet impingement processor, and it is 0.9MPa to process 6min under the condition of jet pressure, put together with 35 parts of polyvinyl acetate then into the reactor, start the stirrer, stir at a speed of 180r / min, heat up to 52°C, and then drip the initiator of a mixture of peroxide initiator and ascorbic acid at a speed of 2mL / min, when the initiator After the dripping is completed, add 3 parts of sodium hydroxide, 60 parts of light calcium carbonate and 1000 parts of deionized water, and continue stirring for 24 minutes to obtain the finished spray white paint;

[0035] (2) White spraying of the whole tree: In the sunny days from the end of June to the beginning of July every year and the highest temperature > 30 ℃, use the finished white spray paint to spray the whole tree white for the...

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Abstract

The invention discloses an anti-sunscald spray-whitening method for citrus. The anti-sunscald spray-whitening method comprises the following steps: (1) preparation of a spray-whitening coating: a stepof subjecting blue algae to jet impact treatment, then placing the treated blue algae together with polyvinyl acetate into a reactor, starting a stirrer for stirring, carrying out heating to 50 to 55DEG C, then dropwise adding an initiator, after the initiator is dropwise added, adding sodium hydroxide, light calcium carbonate and deionized water, and continuing stirring so as to obtain a finished spray-whitening coating product; and (2) whole-tree spray-whitening: a step of subjecting a citrus tree to first whole-tree spray-whitening with the finished spray-whitening coating product in a sunny day with a maximum temperature of larger than 30 DEG C at the end of June to the beginning of July every year, carrying out secondary whole-tree spray-whitening with the finished spray-whitening coating product in the middle of August, and carrying out third whole-tree spray-whitening with the finished spray-whitening coating product when a monthly rainfall amount is no less than 100 mm or a monthly average daily maximum temperature reaches 32 DEG C in September. The anti-sunscald spray-whitening method provided by the invention can reduce the sunscald rate of the citrus, and can control occurrence of common citrus diseases and pests like Panonychus citri, Phyllocoptruta oleivora Ashmead and citrus canker.

Description

【Technical field】 [0001] The invention belongs to the management field of citrus, and in particular relates to a method for preventing sunburn and whitening of citrus. 【Background technique】 [0002] Citrus is a subtropical fruit tree that likes to be warm and humid. Excessively high temperature will damage the growth and fruit of citrus, such as sunburn. During the hot and dry season of summer and autumn from July to September, the water in the orchard is insufficient, and the direct sunlight on the fruit, branches and leaves makes the surface temperature of the fruit reach 45°C. Once the surface temperature accumulates for 3 hours, the peel of the fruit will turn yellow, and it will take more than 6 hours Then the peel cannot be restored. Sunburn mainly harms immature fruits, leaves that are not fully mature and bare branches. As the degree of sunburn increases, the center of the fruit becomes dry scars and sinks. The normal growth of the pericarp causes deformities, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D105/04C09D7/61C09D7/63A01G13/00
CPCA01G13/00A01G2013/004C08K2003/265C09D7/61C09D7/63C09D131/04C08L5/04C08K13/02C08K5/14C08K3/26C08K3/22C08K5/1535
Inventor 梁增梁洁言梁春唐志鹏秦荣耀韦杰李果果陈香玲陈东奎罗肖群欧强
Owner 广西桂洁农业开发有限公司
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