WO2020103263A1

WO2020103263A1 - Composition for protecting plant leaf surfaces from salt spray damage and protection method

Info

Publication number: WO2020103263A1
Application number: PCT/CN2018/122622
Authority: WO
Inventors: 杨旭东; 朱绍银; 刘宁; 王征; 刘希望; 张志野
Original assignee: 青岛睿鸿鑫环保科技有限公司
Priority date: 2018-11-20
Filing date: 2018-12-21
Publication date: 2020-05-28

Abstract

The present invention relates to the technical field of plant protection. Disclosed is a composition for protecting plant leaf surfaces from salt spray damage. The present invention provides a composition for protecting plant leaf surfaces from salt spray damage, comprising the following components in parts by mass: 0.5-10 parts of water-soluble polymer, 0-10 parts of water-soluble polyurethane resin, and 0-10 parts of glycerol; the water-soluble polymer is selected from at least one of polyvinyl alcohol, polyethylene oxide, and polyethylene glycol. The composition for protecting plant leaf surfaces from salt spray damage and the protection method according to the present invention form a protective membrane on plant leaf surfaces, effectively avoiding direct contact between salt spray and plant leaf surfaces, and effectively avoiding the adverse effects of blackening, yellowing, or even death of leaf surfaces caused by residual of salt stains on plant leaf surfaces, greatly reducing the damage of salt spray to the growth of plants, achieving a good protective effect.

Description

Composition and method for protecting plant foliage from salt spray

This application requires the application number CN201811385241.7, the invention name " composition to protect the foliage of plants from salt spray damage ", and the application number CN201811385193.1, the invention name submitted to the China Patent Office on November 20, 2018 The priority of the Chinese patent application for " Method for Protecting Plant Leaf Surfaces from Salt Spray Damage ", the entire content of which is incorporated by reference in this application.

Technical field

The invention belongs to the technical field of plant protection, and in particular relates to a composition and a protection method for protecting plant foliage from salt mist.

Background technique

Coastal plants are an important ecosystem in the land-sea ecological transition zone, which plays an important role in defending against typhoons and storms, preventing soil erosion, protecting coastal industrial and agricultural production and the safety of residents ’lives and property.

However, the salty fine droplets suspended in the air in coastal areas are easily dispersed and form salt mist under the dual action of wind and gravity, which has an adverse effect on plant growth and development. Under normal circumstances, salt mist in the air will gradually settle on the branches and leaves of various plants such as crops, garden plants, ornamental plants, etc., which will cause salt to invade the leaf tissues, causing tissue dehydration and necrosis.

In recent years, there have been some related reports on the research of the effect of salt fog on plant growth, such as: Wang Wenqing et al. (Bian Ana, Lin Ming, Wang Wenqing. The effect of salt fog stress on the growth of Lam kernel seedlings and the distribution of mineral elements in the body. Journal of Eco-Environment, 2014, 23 (11): 1752-1758.) Reported that salt fog had an adverse effect on the growth of L. arundinacea seedlings, Liao Qi Geng et al. (Chen Guojun, Liu Weigang, Xu Yingchun, Liao Qi Geng. Evaluation of salt spray tolerance of 9 coastal plants. Forest and environment Journal, 2018, 38 (3): 341-347.) The results of the study showed that salt spray on thick leaf grouper, car mulberry, fish vine, bitter blue, Prunella glabra, Prunus monophylla, sour, The leaves of 9 kinds of plants, such as silver hair tree and bitter tree, have different degrees of damage, mainly manifested as chlorosis and yellowing, wilting and dryness, dehydration and browning and other adverse symptoms.

At this stage, the problem of salt mist damage to plants has gradually attracted people's attention, but there are few solutions that can be provided in the prior art. Only the physiology of protecting plant leaves from salt spray damage disclosed by CN201410743512.7 is retrieved. Conditioner and method, first weigh 8g citric acid, 10g ascorbic acid, 5g polyamine, 10g salicylic acid, add water to dissolve, then add 1.5g fatty alcohol polyoxyethylene ether diluted with water, 1.5g fatty alcohol polyoxyethylene ether phosphate 0.5 g, then add water to a quality of 100g, stir evenly to obtain a physiological regulator, and spray the above physiological regulator on the leaves of plants damaged by salt, it can be effectively protected and repaired, if the salt spray is severely affected, multiple sprays are required Until the effect of cleaning and recovery is achieved.

It can be seen that the physiological regulators disclosed in CN201410743512.7 mainly use citric acid, ascorbic acid, polyamines, and salicylic acid, which are four high-priced substances with medicinal effects as the main effective ingredients, which play a role in the leaves of salt-damaged plants. The cost of cleaning and repairing is relatively high. Moreover, due to the presence of various acidic substances such as citric acid and salicylic acid, in the actual application of spraying, it is particularly prone to soil acidification problems. It is neither environmentally friendly nor environmentally friendly. friendly.

Based on the above reasons, in order to protect plants from salt spray damage, it is necessary to develop a safe and environmentally friendly, environmentally friendly new products and protection methods.

Summary of the invention

In response to the above technical problems, the present invention provides a new product that is safe, environmentally friendly and environmentally friendly, specifically:

A composition for protecting plant foliage from salt spray damage, comprising the following parts by mass of components: water-soluble polymer 0.5-10 parts, water-based polyurethane resin 0-10 parts, glycerin 0-10 parts; wherein, The water-soluble polymer is at least one selected from polyvinyl alcohol, polyethylene oxide, or polyethylene glycol.

In any of the above technical solutions, further, the composition includes the following parts by mass of components: water-soluble polymer 0.5 to 10 parts, water-based polyurethane resin 0 to 10 parts, and glycerol 0.05 to 10 parts.

In any of the above technical solutions, further, the composition includes the following parts by mass of components: water-soluble polymer 0.5 to 10 parts, water-based polyurethane resin 0 to 10 parts, and glycerin 0.5 to 10 parts.

In any of the above technical solutions, further, the composition includes the following parts by mass of components: water-soluble polymer 0.5-10 parts, water-based polyurethane resin 0-10 parts, glycerol 0.5-10 parts, water-soluble cellulose 0.01 to 5 parts, alginate 0.01 to 5 parts, surfactant 0 to 5 parts, preservative 0 to 5 parts.

In any of the above technical solutions, further, the composition includes the following parts by mass of components: water-soluble polymer 0.5 to 5 parts, water-based polyurethane resin 0 to 5 parts, glycerin 0.5 to 5 parts, water-soluble cellulose 0.01-2 parts, alginate 0.01-2 parts, surfactant 0-2 parts, preservative 0-2 parts.

In any of the above technical solutions, preferably, the composition includes the following parts by mass of components: water-soluble polymer 0.5 to 5 parts, water-based polyurethane resin 0 to 5 parts, glycerin 0.5 to 5 parts, water-soluble cellulose 0.1 to 2 parts, alginate 0.1 to 2 parts, surfactant 0.01 to 1 part, preservative 0.01 to 1 part.

In any of the above technical solutions, further, the composition satisfies at least one of the following:

The water-soluble cellulose is selected from at least one of hydroxypropyl methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose or carboxyethyl cellulose;

The alginate is selected from at least one of sodium alginate, potassium alginate, ammonium alginate, or calcium alginate;

The surfactant is selected from at least one of anionic surfactants, cationic surfactants, zwitterionic surfactants, or nonionic surfactants;

The preservative is selected from at least one of sorbic acid and its salts, benzoic acid and its salts, dehydroacetic acid and its salts, parabens or sodium diacetate.

In any of the above technical solutions, preferably, the anionic surfactant is selected from sodium dodecyl sulfonate, sodium tridecyl sulfonate, sodium tetradecyl sulfonate, sodium pentadecyl sulfonate , Sodium cetylsulfonate, sodium heptadecylsulfonate, sodium octadecylsulfonate, sodium dodecylbenzenesulfonate, sodium tridecylbenzenesulfonate, tetradecylbenzenesulfonate At least one of sodium, sodium pentadecylbenzenesulfonate, sodium cetylbenzenesulfonate, sodium heptadecylbenzenesulfonate or sodium octadecylbenzenesulfonate; the cationic surfactant is selected From dodecyltrimethylammonium bromide, tridecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, pentadecyltrimethylammonium bromide or hexadecyltrimethylammonium bromide At least one of methyl ammonium bromide.

In any of the above technical solutions, further, the viscosity of the water-soluble polymer is 20 to 80 mPa · s.

In any of the above technical solutions, preferably, the viscosity of the water-soluble polymer is 40 to 60 mPa · s.

In any of the above technical solutions, more preferably, the viscosity of the water-soluble polymer is 44.0 to 56.0 mPa · s.

In any of the above technical solutions, further, the water-soluble polymer is polyvinyl alcohol, and the degree of alcoholysis of the polyvinyl alcohol is ≥ 84.0%.

In any of the above technical solutions, preferably, the degree of alcoholysis of the polyvinyl alcohol is 85.0-95.0%.

In any of the above technical solutions, more preferably, the alcoholysis degree of the polyvinyl alcohol is 86.0-90.0%.

In any of the above technical solutions, further, the solid content of the aqueous polyurethane resin is ≥20%.

In any of the above technical solutions, preferably, the solid content of the aqueous polyurethane resin is 30-50%.

In any of the above technical solutions, further, the viscosity of the alginate is ≥100 mPa · s.

In any of the above technical solutions, preferably, the viscosity of the alginate is 100-1000 mPa · s.

In any of the above technical solutions, further, the composition further includes water; the ratio of the mass of the water to the total mass of the remaining components is 20-1500: 1.

In any of the above technical solutions, preferably, the ratio of the mass of the water to the total mass of the remaining components is 350-1500: 1.

In any of the above technical solutions, further, it is prepared by the following method: according to the mixing ratio described in any one of the above technical solutions, the components are taken and mixed evenly.

The present invention also provides a method for protecting the foliage of plants from salt mist, which includes the following steps: the composition described in any one of the above technical solutions is taken and sprayed on the foliage of plants.

In the above method, further, the plants include green leaf jasper, Siji Gui, Forsythia, rose, gold leaf privet, Jiexiang, Liriodendron tulipifera, Hehuan, Jingui, Lam kernel, Thickleaf, Che mulberry, fish vine, bitter sap blue, Prunus sibiricum, single leaf vine, sour schisandra, silver hair tree, bitter tree, green radish, white crane.

The beneficial effects of the present invention are:

The composition and the method for protecting the foliage of plants against salt spray damage form a protective film on the surface of the foliage of the plant, which can not only effectively avoid direct contact between the salt spray and the foliage of the plant, but also effectively avoid salting. The undesirable consequences of foliage blackening, yellowing or even dying caused by the residue on the plant leaf surface greatly reduce the damage of salt spray to plant growth and play a very good protective effect. At the same time, the composition of the present invention is safe, It is environmentally friendly, environmentally friendly, harmless, and effective for a long time. It is very suitable for the protection of plant foliage to protect it from salt spray.

The composition of the present invention forms a protective film on the leaf surface of the plant, thereby protecting the leaf surface of the plant from the damage of salt spray, but at the same time, the protective film will not adversely affect the normal photosynthesis and respiration of the plant Therefore, based on the above-mentioned mechanism of forming a protective film on the foliage of plants, those skilled in the art can reasonably expect the four seasons on the basis that the composition of the present invention is effective for various plants such as green leaf jasper, green dill, white crane Other plants such as Gui, Forsythia, Rose, Ligustrum lucidum, Jin Gui, Lam kernel, Hippophylla chinense also have good protection against salt spray damage.

BRIEF DESCRIPTION

Figure 1 shows the growth of plants on the second day, where: (1a) is the test group of Example 1; (1b) is the test group of Example 2; (1c) is the control group of Examples 1-10; (1d ) Is a comparative example.

Figure 2 is the growth of plants on the 10th day, where: (2a) is the test group of Example 1; (2b) is the test group of Example 2; (2c) is the control group of Examples 1-10; (2d ) Is a comparative example.

Figure 3 shows the growth of the green plant in Example 11 on day 10, where: (3a) is the test group; (3b) is the control group.

FIG. 4 is the growth situation of the white arum plant in Example 11 on day 10, wherein: (4a) is the test group; (4b) is the control group.

detailed description

The present invention will be further described in detail below by way of examples and comparative examples, but it does not limit the protection scope of the present invention to the scope of the described examples.

In the present invention, those who do not indicate the specific conditions are carried out according to the conventional conditions or the conditions recommended by the manufacturer. Those who use the reagents or instruments without indicating the manufacturer are all conventional products that can be obtained through commercial purchase.

Polyvinyl alcohol (PVA): alcoholysis degree (mole fraction) 86.0-90.0%, viscosity 44.0-56.0 mPa · s, China Petrochemical Group Sichuan Vinylon Factory;

Waterborne polyurethane resin: milky white, solid content 35 ± 1wt%;

Sodium alginate: also known as sodium alginate, viscosity is 100 ～ 800mPa · s.

Example 1

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyvinyl alcohol 1.6 parts, glycerin 1.0 part, hydroxypropyl methylcellulose 0.40 part, sodium alginate 0.30 part, surface active Agent (sodium dodecyl sulfonate) 0.12 parts, preservative (potassium sorbate) 0.30 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 500 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as watercress green, etc., the water on the leaf surface before spraying At an angle of 100.4 °), after 1 hour (after the leaf surface is dry), a protective film is formed on the surface of the leaf surface (the protective film is formed after spraying, and the water contact angle of the leaf surface is 75.4 °), and then sprayed with 3.5wt% The saline was applied to the foliage of the plants, and the growth of the plants was observed (test group); the plants sprayed directly with 3.5 wt% saline (without spraying the composition of the invention) were used as the control group.

Example 2

Composition for protecting plant foliage from salt spray, including components in the following parts by mass: polyvinyl alcohol 1.4 parts, aqueous polyurethane resin 1.75 parts, glycerin 1.8 parts, hydroxypropyl methylcellulose 0.65 parts, alginic acid Sodium 0.22 parts, surfactant (sodium dodecylbenzene sulfonate) 0.15 parts, preservative (sodium benzoate) 0.05 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 1200 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as watercress green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 3

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyvinyl alcohol 1.2 parts, aqueous polyurethane resin 1.2 parts, glycerin 0.8 parts, carboxymethyl cellulose 0.20 parts, sodium alginate 0.18 Parts, surfactant (sodium dodecylbenzenesulfonate) 0.06 parts, preservative (potassium sorbate) 0.12 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 800 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 4

A composition for protecting plant foliage from damage by salt spray, including the following parts by mass: polyvinyl alcohol 0.8 parts, glycerin 1.2 parts, hydroxymethyl cellulose 0.85 parts, sodium alginate 0.22 parts, surfactant ( Sodium dodecyl sulfonate) 0.02 parts, preservative (potassium sorbate) 0.10 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 350 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 5

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyvinyl alcohol 3.5 parts, glycerin 1.0 part, hydroxypropyl methylcellulose 0.40 parts, sodium alginate 0.20 parts, surface active Agent (sodium dodecylbenzenesulfonate) 0.05 parts, preservative (potassium sorbate) 0.25 parts,

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Example 6

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyethylene glycol 1.5 parts, glycerol 1.2 parts, hydroxypropyl methylcellulose 0.50 parts, sodium alginate 0.25 parts, surface Active agent (sodium dodecylbenzenesulfonate) 0.05 parts, preservative (sodium benzoate) 0.25 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 600 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 7

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyethylene oxide 2.0 parts, aqueous polyurethane resin 1.20 parts, glycerol 1.5 parts, hydroxypropyl methylcellulose 0.25 parts, alginic acid 0.35 parts sodium, 0.10 parts surfactant (sodium dodecylbenzene sulfonate), 0.12 parts preservative (sodium benzoate);

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 1000 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 8

Composition for protecting plant foliage from salt spray, including the following parts by mass: polyethylene glycol 1.6 parts, aqueous polyurethane resin 1.50 parts, glycerin 1.0 parts, carboxymethyl cellulose 0.40 parts, sodium alginate 0.30 parts, surfactant (sodium dodecyl sulfonate) 0.12 parts, preservative (potassium sorbate) 0.3 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 500 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 9

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyvinyl alcohol 1.2 parts, aqueous polyurethane resin 1.2 parts, glycerin 0.80 parts, carboxymethyl cellulose 0.20 parts, sodium alginate 0.18 Parts, surfactant (sodium dodecylbenzenesulfonate) 0.10 parts, preservative (potassium sorbate) 0.12 parts, water 96.2 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1:20 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 10

A composition for protecting plant foliage from damage by salt spray, including the following parts by mass: polyvinyl alcohol 3.5 parts, glycerin 1.0 part, hydroxymethyl cellulose 0.40 part, sodium alginate 0.35 part, surfactant ( Sodium dodecylbenzenesulfonate) 0.05 parts, preservative (potassium sorbate) 0.25 parts, water 94.45 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 25 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.), 1 hour later (wait After the leaf surface is dried), a protective film is formed on the surface of the leaf surface, and then spray 3.5wt% saline on the leaf surface of the plant to observe the growth of the plant (test group); spray 3.5wt% saline directly (without spraying the invention) Composition) plants served as a control group.

Example 11

A composition for protecting plant foliage from salt spray, including the following parts by mass: polyvinyl alcohol 1.6 parts, glycerol 0.10 parts, hydroxypropyl methylcellulose 0.40 parts, surfactant (dodecyl) Sodium sulfonate) 0.10 parts, preservative (potassium sorbate) 0.25 parts;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 500 mass ratio, after adding water to dissolve and mix, spray on the plant leaf surface (green radish, white crane, the water contact angle of green radish leaf surface before spraying is 54.2 ° , Before spraying, the water contact angle of the leaf surface of the white crane is 75.5 °), after 1 hour (after the leaf surface is dried), a protective film is formed on the leaf surface (after spraying, a protective film is formed, and the water contact angle of the green radish leaf surface) Is 32.4 °, the water contact angle of the leaf surface of the white crane is 42.2 °), and then spray 3.5wt% saline on the foliage of the plant, and observe the growth of the plant (test group); spray 3.5wt% saline directly (not sprayed) The plant of the composition of the present invention was used as a control group.

Comparative Example 1

The comparative composition includes the following parts by mass: hydroxypropyl methylcellulose 0.40 parts, sodium alginate 0.30 parts, surfactant (sodium dodecyl sulfonate) 0.12 parts, preservative (potassium sorbate) ) 0.3 copies;

Preparation and use methods:

According to the above ratio, take the components, mix well, then you get;

Take the above mixed composition, according to the composition: water = 1: 500 mass ratio, add water to dissolve and mix, spray on the plant leaf surface (green leaf jasper, also known as Douban green, etc.); 1 hour later (wait After the leaves are dried), then spray 3.5wt% saline on the leaves of the plants to observe the growth of the plants.

The test results are as follows:

1. The growth of the plant on the second day, as shown in Figure 1, where:

(1a) For the test group of Example 1, there is almost no salinity residue on the leaf surface, and there is no phenomenon such as blackening or yellowing;

(1b) For the test group of Example 2, there is almost no salinity residue on the leaf surface, and there is no phenomenon such as blackening or yellowing;

(1c) For the control group of Examples 1 to 10, a large amount of salt remains on the leaf surface, and in serious places, the leaf surface appears black, yellow and other adverse symptoms;

(1d) is Comparative Example 1. A small amount of salt remains on the leaf surface, but no blackening or yellowing of the leaf surface is found.

2. The growth of the plant on the 10th day, as shown in Figure 2, where:

(2a) is the test group of Example 1, the plant grows well, and there is no foliar death;

(2b) It is the test group of Example 2, the plant grows well, and there is no foliar death;

(2c) For the control group of Examples 1 to 10, more salt remains on the leaf surface, and the plant leaves have withered to varying degrees;

(2d) is Comparative Example 1. There is still salt on the leaf surface, and some black spots and dead spots appear on some leaf surfaces.

3. The growth of the plants in the experimental groups of Examples 3 to 10 is similar to the growth of the plants in the experimental groups of Examples 1 and 2. There is basically no salt residue on the leaves, and there is no blackening or yellowing. The growth of the plants good.

4. The growth situation of the green plant in Example 11 on the 10th day, as shown in Figure 3, in which:

(3a) For the test group, there is no salinity residue on the leaf surface of green radix, and no blackening or yellowing;

(3b) As a control group, saline leaves remained on the leaf surface of green radix, and the phenomenon of blackening and dying on the edges of some leaves.

5. Example 11 The growth of the white crane plant on the 10th day, as shown in Figure 4, where:

(4a) For the test group, there is basically no salinity residue on the leaf surface of the white crane, and there is no blackening or yellowing;

(4b) As a control group, there is salty residue on the leaf surface of Acacia, and some of the leaves have serious blackening and dying on the edge of the leaf.

The above results indicate that the composition and protection method for protecting plant foliage from salt spray can form a protective film on the surface of plant foliage, which not only can effectively avoid direct contact between salt spray and plant foliage, but also can effectively It avoids the undesirable consequences of leaf surface blackening, yellowing or even dying caused by the residue of salting on the plant leaf surface, greatly reduces the damage of salt fog to plant growth, and plays a good protective effect. At the same time, the present invention The composition is safe, environmentally friendly, environmentally friendly, harmless, and effective for a long time, and is very suitable for the protection of plant foliage to protect it from salt mist.

Of course, the present invention can have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes And variants shall fall within the scope of protection of the claims appended to the present invention.

Industrial applicability

The present invention solves the problem that plants are easily damaged or even die due to salt residue on the plant leaf surface in the salt fog environment by adopting a technical method of forming a protective film on the plant leaf surface to avoid direct contact between the plant leaf surface and the salt spray At the same time, the composition and protection method for protecting plant foliage from salt spray damage are safe, environmentally friendly, environmentally friendly, and have no risk of soil acidification problems, and have a good value for popularization and application.

Claims

The composition for protecting the foliage of plants from damage by salt spray is characterized by comprising the following parts by mass: water-soluble polymer 0.5-10 parts, water-based polyurethane resin 0-10 parts, glycerin 0-10 parts; wherein, The water-soluble polymer is selected from at least one of polyvinyl alcohol, polyethylene oxide, or polyethylene glycol.
The composition according to claim 1, characterized by comprising the following parts by mass of components: water-soluble polymer 0.5-10 parts, water-based polyurethane resin 0-10 parts, glycerol 0.05-10 parts.
The composition according to claim 2, characterized by comprising the following parts by mass of components: water-soluble polymer 0.5 to 10 parts, water-based polyurethane resin 0 to 10 parts, glycerol 0.5 to 10 parts.
The composition according to claim 3, characterized by comprising the following parts by mass of components: water-soluble polymer 0.5-10 parts, water-based polyurethane resin 0-10 parts, glycerol 0.5-10 parts, water-soluble cellulose 0.01 ~ 5 parts, alginate 0.01 ~ 5 parts, surfactant 0 ~ 5 parts, preservative 0 ~ 5 parts.
The composition according to claim 4, characterized by comprising the following parts by mass of components: water-soluble polymer 0.5 to 5 parts, water-based polyurethane resin 0 to 5 parts, glycerol 0.5 to 5 parts, water-soluble cellulose 0.01 ~ 2 parts, alginate 0.01 ~ 2 parts, surfactant 0 ~ 2 parts, preservative 0 ~ 2 parts.
The composition according to claim 5, characterized by comprising the following parts by mass of components: water-soluble polymer 0.5 to 5 parts, water-based polyurethane resin 0 to 5 parts, glycerol 0.5 to 5 parts, water-soluble cellulose 0.1 ~ 2 parts, alginate 0.1 ~ 2 parts, surfactant 0.01 ~ 1 part, preservative 0.01 ~ 1 part.
The composition according to any one of claims 1 to 6, wherein at least one of the following is satisfied:

The water-soluble cellulose is selected from at least one of hydroxypropyl methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose or carboxyethyl cellulose;

The alginate is selected from at least one of sodium alginate, potassium alginate, ammonium alginate, or calcium alginate;

The surfactant is selected from at least one of anionic surfactants, cationic surfactants, zwitterionic surfactants or nonionic surfactants;

The preservative is selected from at least one of sorbic acid and its salts, benzoic acid and its salts, dehydroacetic acid and its salts, parabens or sodium diacetate.
The composition according to claim 7, wherein the anionic surfactant is selected from sodium dodecyl sulfonate, sodium tridecyl sulfonate, sodium tetradecyl sulfonate, pentadecyl sulfonate Sodium sulfonate, sodium cetylsulfonate, sodium heptadecylsulfonate, sodium octadecylsulfonate, sodium dodecylbenzenesulfonate, sodium tridecylbenzenesulfonate, tetradecyl At least one of sodium benzenesulfonate, sodium pentadecylbenzenesulfonate, sodium cetylbenzenesulfonate, sodium heptadecylbenzenesulfonate or sodium octadecylbenzenesulfonate; the cationic surface The active agent is selected from dodecyltrimethylammonium bromide, tridecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, pentadecyltrimethylammonium bromide or hexadecyltrimethylammonium bromide At least one of alkyltrimethylammonium bromide.
The composition according to any one of claims 1 to 6, wherein the viscosity of the water-soluble polymer is 20 to 80 mPa · s.
The composition according to claim 9, wherein the water-soluble polymer has a viscosity of 40 to 60 mPa · s.
The composition according to claim 10, wherein the water-soluble polymer has a viscosity of 44.0 to 56.0 mPa · s.
The composition according to any one of claims 1 to 6, wherein the water-soluble polymer is polyvinyl alcohol, and the degree of alcoholysis of the polyvinyl alcohol is ≥ 84.0%.
The composition according to claim 12, wherein the degree of alcoholysis of the polyvinyl alcohol is 85.0-95.0%.
The composition according to claim 13, wherein the degree of alcoholysis of the polyvinyl alcohol is 86.0-90.0%.
The composition according to any one of claims 1 to 6, wherein the solid content of the aqueous polyurethane resin is ≥ 20%.
The composition of claim 15, wherein the solid content of the aqueous polyurethane resin is 30-50%.
The composition according to any one of claims 1 to 6, wherein the viscosity of the alginate is ≥100 mPa · s.
The composition according to claim 17, wherein the alginate has a viscosity of 100 to 1000 mPa · s.
The composition according to any one of claims 1 to 6, further comprising water; the ratio of the mass of the water to the total mass of the remaining components is 20 to 1500: 1.
The composition of claim 19, wherein the ratio of the mass of water to the total mass of the remaining components is 350-1500: 1.
The composition according to any one of claims 1 to 6, characterized by being prepared by the following method: according to the compounding ratio of any one of claims 1 to 6, each component is taken and mixed evenly .
The method for protecting plant foliage from damage by salt spray is characterized by comprising the following steps: the composition according to any one of claims 1 to 21 is taken and sprayed on the foliage of plants.
The method according to claim 22, characterized in that the plant comprises green leaf jasper, Siji Gui, Forsythia, rose, gold leaf privet, Jiexiang, Liriodendron tulipifera, Hehuan, Jingui, Lam kernel, thick Leaf grouper, car mulberry, fish vine, bitter sapling, Runia involucrata, single leaf vine, sour seed, silver hair tree, bitter tree, green radish, white crane.