Method for preventing and treating yellow leaves of grapes

Abstract

The invention relates to the technical field of prevention and treatment of fruit tree yellow leaf disease, and provides a method for preventing and treating grape yellow leaf, which comprises the steps of preventing and treating grape yellow leaf. The method for preventing the yellow leaves of the grapes comprises the following steps: in the growth period of new shoots of the grapes, flushing or trickle irrigation of an iron-containing complexing agent and an organic water-soluble fertilizer containing MBT humic acid, and spraying of an amino acid liquid fertilizer on leaf surfaces; from the grape flowering period to the berry growth period, an organic water-soluble fertilizer containing MBT humic acid and a microbial agent are applied in a flushing or drip irrigation mode, and an amino acid liquid fertilizer is sprayed to leaf surfaces; the method for treating the yellow leaves of the grapes comprises the following steps that in the grape growth period, an iron-containing complexing agent, an organic water-soluble fertilizer containing MBT humic acid and a microbial agent are applied to the grapes with the yellow leaves in a flushing or drip irrigation mode, and an amino acid liquid fertilizer is sprayed to the leaf surfaces; an organic water-soluble fertilizer containing MBT humic acid and a microbial agent are subjected to flushing or drip irrigation, and an amino acid liquid fertilizer is sprayed on leaf surfaces. By means of the technical scheme, the problem that the prevention and control effect on the grape yellow leaves is poor in the related technology is solved.

Description

Technical Field

[0001] The invention relates to the technical field of prevention and treatment of yellow leaf disease of fruit trees, and specifically to a method for preventing and treating yellow leaf disease of grapes. Background Art

[0002] In the growth process of grapes, grape leaves play a vital role; however, in the growth and development process of grapes, there will always be some adverse factors that affect them, such as the most common yellowing of grape leaves. The reason for the yellowing of grape leaves during the growth process is multifaceted, mainly the following factors: ① Nutritional deficiency: Lack of certain nutrients can cause yellow leaves. Common nutritional deficiencies include iron deficiency, zinc deficiency, magnesium deficiency, potassium deficiency, etc. For example, iron deficiency can cause the leaves of new shoots to lose their green color and turn yellow, and magnesium deficiency can cause the leaves to curl and fall off easily. ② Soil problems: Soil acid-base imbalance, poor air permeability, and low organic matter content can affect the growth of grapes. For example, high alkalinity in the soil can inhibit the absorption of trace elements and cause yellow leaves; soil compaction and poor air permeability can affect root development and cause nutrient deficiency. ③ Pests and diseases: Pests and diseases such as root-knot nematode disease and root rot can cause root rot, affect nutrient and water absorption, and thus cause yellow leaves. In addition, pesticide damage and fertilizer damage can also cause leaf poisoning or death. ④ Environmental factors: Environmental factors such as high or low temperature, strong light, and drought can also affect the growth of grapes and cause yellow leaves. For example, high temperature can cause the stomata of the leaves to become larger and lose water and turn yellow, while low temperature can cause the stomata of the leaves to close and turn yellow. ⑤ Improper management: Management problems such as heavy pruning, improper fertilization, and excessive use of drugs can also cause yellow leaves. For example, heavy pruning after harvesting can damage the capillary roots and cause yellow leaves; excessive fertilization or excessive concentration can burn the leaves.

[0003] Therefore, the current methods for preventing and controlling yellow grape leaves have the following defects and deficiencies: ① The prevention and control effect is not obvious; ② The efficiency is low and the effect is slow; ③ Only the application of iron-containing foliar fertilizer requires many fertilization times, wastes labor, and has poor effects, and is prone to fertilizer damage such as leaf burn; ④ Methods such as furrow application and covering with soil are cumbersome, with high labor costs and insignificant effects. Therefore, a method for effectively preventing and controlling yellow grape leaves is needed. Summary of the invention

[0004] The present invention provides a method for preventing and treating yellow leaves of grapes, which solves the problem that the prevention and control effects of yellow leaves of grapes in the related art are poor.

[0005] The technical solution of the present invention is as follows: The present invention provides a method for preventing and treating yellow grape leaves, including preventing and treating yellow grape leaves; The method for preventing yellow grape leaves comprises the following steps: S1. During the growth period of new grape shoots, apply iron-containing compound and organic water-soluble fertilizer containing MBT humic acid by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; S2. During the grape flowering period to the berry growing period, organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent should be applied by flushing or drip irrigation, and amino acid liquid fertilizer should be sprayed on the leaves; The treatment of yellow grape leaves comprises the following steps: A1. During the grape growth period, flush or drip irrigate the grapes with yellow leaves with iron compound, organic water-soluble fertilizer containing MBT humic acid, MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves; A2. After an interval of 10 to 20 days, flush or drip irrigate with organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves.

[0006] As a further technical solution, in step S1, the iron-containing composite agent is applied by flushing or drip irrigation once, and the dosage is 500-1000 g / mu; The organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1200 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

[0007] As a further technical solution, in step S2, the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30 L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation 1 to 2 times, with a dosage of 5 to 10 L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1200 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

[0008] As a further technical solution, in step A1, the iron-containing composite agent is applied by flushing or drip irrigation once, and the dosage is 1000-1500 g / mu; The organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation once, and the dosage is 5-10L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1000 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

[0009] As a further technical solution, in step A2, the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30 L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation once, and the dosage is 5-10L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1000 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

[0010] As a further technical solution, the components of the iron-containing complex include one or more of EDDHA-iron, EDTA-iron, and sugar alcohol iron.

[0011] As a further technical solution, when the components of the iron-containing complex include EDDHA-iron, EDTA-iron and sugar alcohol iron, the iron-containing complex includes the following components in parts by weight: 70-90 parts of EDDHA-iron, 8-12 parts of EDTA-iron, and 8-12 parts of sugar alcohol iron.

[0012] As a further technical solution, the iron-containing complex comprises the following components in parts by weight: 80 parts of EDDHA-iron, 10 parts of EDTA-iron, and 10 parts of sugar alcohol iron.

[0013] In the present invention, after the application of MB35-5 microbial agent, the microbial agent and its secretions can degrade and activate the effective silicon content in the soil, increase the effective silicon content in the soil, promote the absorption of silicon by plants, and provide disease resistance to grapes. The increase in the content of silicon has the following effects on the root system of grapes: ① Improve root activity: Silicon can increase the number of white roots of the root system, increase the α-naphthylamine oxidation power of the root system, enhance the oxygen secretion capacity of the root system, and improve the dehydrogenase activity of the root system, thereby reducing the harm of reducing harmful and toxic substances such as ferrous ions, manganese ions, hydrogen sulfide, etc. to the root system under anaerobic conditions. ② Enhance root growth: Silicon can enhance the photosynthesis of grapes, produce nutrients, promote root growth, and enhance root vitality. This helps prevent the occurrence of root rot and premature aging problems of grapes. ③ Improve the root environment: Silicon can improve the soil environment and reduce the accumulation of harmful substances in the soil, thereby providing a healthier growth environment for the root system. ④ Improve root stress resistance: Silicon can enhance the stress resistance of the root system, so that it can maintain a good growth state even in an unfavorable environment. Therefore, the application of microbial agents can increase the content of effective silicon in the soil and has many effects on the root system. It can not only improve the activity and growth of the root system, but also enhance the root resistance and improve the root environment, promote the growth of the root system, and improve and prevent yellow leaves of plants, which can better promote the absorption of nutrients by the roots.

[0014] In the present invention, in the organic water-soluble fertilizer containing MBT humic acid, MBT refers to a multi-component biostimulant technology, which is a multi-component biostimulant prepared by enzymatically activating lignite / weathered coal by microorganisms and their secretion products, and containing a variety of amino acids and a variety of plant growth regulators. The organic water-soluble fertilizer (Pulina) containing MBT humic acid components has a neutral acidity and alkalinity, and can be applied to acidic soil and alkaline soil. After being applied to the soil, it can adjust the soil acidity and alkalinity. It has been proved through experiments that after the soil is treated with Purina, the pH of the soil around the crop root system can change by 0.2 to 0.3 pH units. The change in soil pH can activate various nutrients in the soil. It can also improve the soil aggregate structure, improve soil permeability, promote the growth of the root system, and better promote the absorption of nutrients by the root system, providing internal power for improving the yellow leaves of plants.

[0015] In the present invention, the iron-containing compound affects the photosynthesis of grapes. Although iron does not participate in chlorophyll synthesis, it is an important component of chloroplasts, and the synthesis of chlorophyll is carried out on chloroplasts. The iron-containing compound is a catalyst for multiple enzymes, and chlorophyll synthase, aerobic respiration enzymes, etc. all require the promotion of iron, and are also important substances for protein synthesis and energy metabolism. The iron-containing compound can promote the metabolism of nitrogen fertilizers and the nitrogen fixation ability of rhizobia, and can avoid plants from causing leaf yellowing due to nitrogen deficiency, and EDDHA chelated-iron is stable in nature when used, soluble in water, and plants can absorb it quickly, quickly supplement iron, and the effect is remarkable, environmentally friendly, non-toxic and has no side effects, but the price is high, and it is generally used in cash crops and flowers. Sugar alcohol iron is formed by chelating iron with xylitol and mannitol as carriers, and sugar alcohols are considered by crops as their own substances, which can be conducted up and down in the crop body, greatly improving the absorption and utilization rate of iron fertilizer. The use of iron-containing compound avoids the phenomenon of yellow leaves in grapes due to iron deficiency, and iron fertilizer can quickly increase the effective iron content in the soil.

[0016] As a further technical solution, the components of the amino acid liquid fertilizer include amino acids, growth regulators, nutrient elements and water.

[0017] As a further technical solution, the amino acid liquid fertilizer includes the following components in parts by weight: 35-40 parts of amino acids, 10-15 parts of growth regulators, 80-85 parts of nutrient elements, and 20 parts of water.

[0018] As a further technical solution, the amino acid liquid fertilizer includes the following components in parts by weight: 39.3 parts of amino acids, 12.2 parts of growth regulators, 81.51 parts of nutrient elements, and 20 parts of water.

[0019] As a further technical solution, the amino acids include one or more of sodium polyaspartate, glycine, sodium glutamate, phenylalanine, methionine, and L-tryptophan.

[0020] As a further technical solution, the growth regulator includes one or more of calcium gluconate, mannitol, sorbitol, potassium cinnamate, betaine, and chlorella polysaccharide; The nutrient elements include calcium nitrate tetrahydrate, magnesium nitrate hexahydrate, EDTA zinc, sodium octaborate tetrahydrate and ammonium molybdate.

[0021] In the present invention, the effect of amino acids in amino acid liquid fertilizer on grapes is mainly reflected in promoting grape growth, improving disease resistance, improving grape quality, enhancing metabolic function, promoting photosynthesis, promoting root development, and improving yield and composition factors. As the smallest molecule constituting protein, compound amino acids exist in fertilizers and have the characteristics of being easily absorbed by crops. It can supplement the essential amino acids for plants, stimulate and regulate the rapid growth of plants, promote the strong growth of plants, and promote the absorption of nutrients. Compound amino acids can enhance the metabolic function of plants, improve photosynthesis, promote the development of plant root systems, accelerate plant growth and reproduction, and improve the effect of nitrogen, phosphorus, and potassium absorption and utilization. Compound amino acid fertilizers can improve soil physical and chemical properties, improve water and fertilizer retention and air permeability, and play a role in maintenance, maturation, and soil improvement. In summary, the effect of compound amino acids on grapes is multifaceted, not only can it promote the growth and development of grapes, but also can improve the disease resistance and yield of grapes, improve the quality of grapes, enhance the metabolic function and photosynthesis of grapes, prevent and improve the phenomenon of yellow leaves on grapes, and promote the growth and development of the root system, playing a role in improving quality and efficiency.

[0022] The invention also proposes application of the method in preventing and treating yellow leaves of fruit trees.

[0023] In the present invention, the fruit trees may be, for example, apples, pears, etc.

[0024] The working principle and beneficial effects of the present invention are: In the present invention, the application before the yellowing of grape leaves occurs plays a preventive role, and the application after the yellowing of leaves occurs can treat the yellowing of leaves and make them green again. The application of the combination of the components is sprayed on the leaves, the soil is improved and activated, and the increase of silicon in the soil promotes the growth of the plant root system and the absorption of nutrients such as iron. It promotes the absorption of various nutrient elements by crops in all directions, prevents and treats the occurrence of yellowing of grape leaves, is convenient, has significant effects in preventing and treating yellowing of leaves, has quick effects, reduces fertilizer damage caused by foliar fertilization, reduces labor and saves costs, and solves the problem of reduced yield and quality of grapes due to yellowing of leaves.

[0025] The method of the present invention has remarkable control effect, high efficiency and quick effect. The yellow leaves re-green significantly 1 to 2 weeks after application, and the yellow leaves re-green phenomenon reaches more than 85% in about 3 weeks.

[0026] In the present invention, amino acid foliar fertilizer is applied, which is highly safe, requires fewer fertilization times, saves labor, and is less likely to cause fertilizer damage such as leaf burning.

[0027] In the present invention, the fertilizer product combination is all water-soluble fertilizers, which can be applied by flushing or drip irrigation, and can be applied with water. Compared with measures such as trenching and covering with soil, it saves more labor and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a picture before the yellowing of grape leaves phenomenon is prevented and controlled in Example 1 of the present invention; Figure 2 This is a picture of the grape yellowing phenomenon after being prevented and controlled by Example 1 of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the following examples and comparative examples, the organic water-soluble fertilizer containing MBT humic acid is the organic water-soluble fertilizer Purina containing MBT humic acid, and the MB35-5 microbial agent is the silicon-dissolving MB35-5 microbial agent Ayedo.

[0032] The iron-containing compound comprises the following components in parts by weight: 80 parts of EDDHA-iron, 10 parts of EDTA-iron and 10 parts of sugar alcohol iron; the iron-containing compound is obtained by uniformly mixing the components of the iron-containing compound.

[0033] The amino acid liquid fertilizer comprises the following components in parts by weight: 20.0 parts of water, 1.0 parts of disodium EDTA, 25.0 parts of sodium polyaspartate, 8.0 parts of glycine, 5.0 parts of sodium glutamate, 0.3 parts of phenylalanine, 0.5 parts of methionine, 0.5 parts of L-tryptophan, 1.2 parts of calcium gluconate, 1.5 parts of mannitol, 4.0 parts of sorbitol, 3.0 parts of potassium cinnamate, 2.0 parts of betaine, 0.5 parts of chlorella polysaccharide, 45.0 parts of calcium nitrate tetrahydrate, 35.0 parts of magnesium nitrate hexahydrate, 1.0 parts of zinc EDTA, 0.5 parts of sodium octaborate tetrahydrate, and 0.01 parts of ammonium molybdate; the components of the above amino acid liquid fertilizer are mixed to obtain the amino acid liquid fertilizer.

[0034] Example 1 To prevent yellowing of grape leaves, follow these steps: Step 1: During the growth period of new grape shoots, apply iron-containing compound and organic water-soluble fertilizer containing MBT humic acid by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; the iron-containing compound should be applied or dripped once, with a dosage of 500g / mu; the organic water-soluble fertilizer containing MBT humic acid should be applied or dripped once, with a dosage of 10L / mu; the amino acid liquid fertilizer should be sprayed at a multiple of 800 times, 3 times, and 7 days between each spraying; Step 2: From the flowering period to the berry growing period of grapes, organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent are applied by flushing or drip irrigation, and amino acid liquid fertilizer is sprayed on the leaves; the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10L / mu; the MB35-5 microbial agent is applied by flushing or drip irrigation once, and the dosage is 5L / mu; the amino acid liquid fertilizer is sprayed at a multiple of 800 times, twice, and 7 days between each spraying; During the grape growth period, if yellow leaves appear on grapes, the treatment of yellow leaves includes the following steps: Step 1: Flush or drip irrigate iron-containing compound, organic water-soluble fertilizer containing MBT humic acid, MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves; among them, the iron-containing compound is flushed or drip irrigated once, 1000g / mu; the organic water-soluble fertilizer containing MBT humic acid is used at a dosage of 10L / mu, flushed or drip irrigated once; the MB35-5 microbial agent is used at a dosage of 5L / mu, flushed or drip irrigated once; the amino acid liquid fertilizer is sprayed at a multiple of 800 times, 5 days apart, and sprayed twice; Step 2: After 15 days, according to the soil moisture conditions in the field, apply organic water-soluble fertilizer containing MBT humic acid or MB35-5 microbial agent by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; the amount of organic water-soluble fertilizer containing MBT humic acid is 10L / mu, which is applied by flushing or drip irrigation once; the amount of MB35-5 microbial agent is 5L / mu, which is applied by flushing or drip irrigation once; the amino acid liquid fertilizer is sprayed at 800 times, twice, with an interval of 5 days between each spraying. Figure 1 As shown in the picture, the prevention and control of yellow leaves of grapes are as follows Figure 2 shown.

[0035] Example 2 To prevent yellowing of grape leaves, follow these steps: Step 1: During the growth period of new grape shoots, apply iron-containing compound and organic water-soluble fertilizer containing MBT humic acid by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; the iron-containing compound should be applied or dripped once, with a dosage of 1000g / mu; the organic water-soluble fertilizer containing MBT humic acid should be applied or dripped once, with a dosage of 10L / mu; the amino acid liquid fertilizer should be sprayed at a multiple of 1200 times, twice, with an interval of 7 days between each spraying; Step 2: From the flowering period to the berry growing period of grapes, organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent are applied by flushing or drip irrigation, and amino acid liquid fertilizer is sprayed on the leaves; the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10L / mu; the MB35-5 microbial agent is applied by flushing or drip irrigation twice, and the dosage is 5L / mu; the amino acid liquid fertilizer is sprayed at a multiple of 1200 times, and the number of sprays is 2 times, with an interval of 7 days between each spraying; During the grape growth period, if yellow leaves appear on grapes, the treatment of yellow leaves includes the following steps: Step 1: Flush or drip irrigate iron-containing compound, organic water-soluble fertilizer containing MBT humic acid, MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves; among them, the iron-containing compound is flushed or drip irrigated once, 1300g / mu; the organic water-soluble fertilizer containing MBT humic acid is used at a dosage of 10L / mu, flushed or drip irrigated once; the MB35-5 microbial agent is used at a dosage of 5L / mu, flushed or drip irrigated once; the amino acid liquid fertilizer is sprayed at a multiple of 900 times, twice, with an interval of 5 days between each spraying; Step 2: After 15 days, according to the soil moisture conditions in the field, apply organic water-soluble fertilizer containing MBT humic acid or MB35-5 microbial agent by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; among them, the amount of organic water-soluble fertilizer containing MBT humic acid is 10L / mu, which is applied by flushing or drip irrigation once; the amount of MB35-5 microbial agent is 5L / mu, which is applied by flushing or drip irrigation once; the amino acid liquid fertilizer is sprayed at a multiple of 900 times, and the number of sprayings is 2 times, with an interval of 5 days between each spraying.

[0036] Example 3 To prevent yellowing of grape leaves, follow these steps: Step 1: During the growth period of new grape shoots, apply iron-containing compound and organic water-soluble fertilizer containing MBT humic acid by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; the iron-containing compound should be applied or dripped once, with a dosage of 800g / mu; the organic water-soluble fertilizer containing MBT humic acid should be applied or dripped once, with a dosage of 10L / mu; the amino acid liquid fertilizer should be sprayed at a multiple of 1000 times, 3 times, and 7 days between each spraying; Step 2: From the flowering period to the berry growing period of grapes, organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent are applied by flushing or drip irrigation, and amino acid liquid fertilizer is sprayed on the leaves; the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10L / mu; the MB35-5 microbial agent is applied by flushing or drip irrigation twice, and the dosage is 5L / mu; the amino acid liquid fertilizer is sprayed at a multiple of 1000 times, and the number of sprays is 3 times, with an interval of 7 days between each spraying; During the grape growth period, if yellow leaves appear on grapes, the treatment of yellow leaves includes the following steps: Step 1: Flush or drip irrigate iron-containing compound, organic water-soluble fertilizer containing MBT humic acid, MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves; among them, the iron-containing compound is flushed or drip irrigated once, 1500g / mu; the organic water-soluble fertilizer containing MBT humic acid is used at a dosage of 10L / mu, flushed or drip irrigated once; the MB35-5 microbial agent is used at a dosage of 5L / mu, flushed or drip irrigated once; the amino acid liquid fertilizer is sprayed 800 times, 3 times, and 5 days between each spraying; Step 2: After 15 days, according to the soil moisture conditions in the field, apply organic water-soluble fertilizer containing MBT humic acid or MB35-5 microbial agent by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; among them, the amount of organic water-soluble fertilizer containing MBT humic acid is 10L / mu, which is applied by flushing or drip irrigation once; the amount of MB35-5 microbial agent is 5L / mu, which is applied by flushing or drip irrigation once; the amino acid liquid fertilizer is sprayed at a multiple of 800 times, and the number of sprayings is 3 times, with an interval of 5 days between each spraying.

[0037] Comparative Example 1 The difference between this comparative example and Example 1 is that when treating yellow leaves, the organic water-soluble fertilizer containing MBT humic acid is replaced with potassium humate powder, and the dosage of potassium humate powder is 3000 g / mu.

[0038] Comparative Example 2 The difference between this comparative example and Example 1 is that during the treatment of yellow leaves, no amino acid liquid fertilizer is sprayed on the leaves in the first step and the second step.

[0039] Comparative Example 3 The difference between this comparative example and Example 1 is that in the treatment of yellow leaves, the iron-containing compound is not flushed or drip-irrigated in the first step.

[0040] Comparative Example 4 The difference between this comparative example and Example 1 is that in the treatment of yellow leaves, no flushing or drip irrigation of organic water-soluble fertilizer containing MBT humic acid is performed in the first step and the second step.

[0041] Comparative Example 5 The difference between this comparative example and Example 1 is that in the treatment of yellow leaves, no flushing or drip irrigation of MB35-5 microbial agent is performed in the first and second steps.

[0042] When treating yellow grape leaves in each embodiment and comparative example, 100 yellow grape leaves were selected from the same position of 15 grape trees, and the number of yellow grape leaves was marked. The yellow grape leaves were observed and counted on the 1st day, 14th day and 21st day after the first step of treating yellow grape leaves was completed. Specific yellow grape leaves greening statistics are shown in Table 1 below.

[0043] Table 1 Statistical results

[0044] After experimental records and statistics, at the beginning of the experiment, all the marked grape leaves were yellow. Compared with comparative examples 1 to 5, in embodiments 1 to 3, on the 14th day after the first fertilization treatment (i.e., completing the first step of treating yellow grape leaves), the yellow grape leaf regreening rate was above 50%, namely 53%, 51% and 55% respectively. On the 21st day after the first fertilization treatment, the yellow grape leaf regreening rate was 89%, 86% and 91% respectively, and the effect of treating the yellow grape leaf phenomenon was significant.

[0045] Comparative Example 1, on the basis of Example 1, adopts the principle of equal humic acid dosage, and uses commercially available potassium humate powder instead of water-soluble fertilizer containing MBT humic acid as an experimental control, which shows that water-soluble fertilizer containing MBT humic acid has a better control effect on yellow grape leaves. On the 14th day after fertilization, 53% of the yellow grape leaves treated in Example 1 turned green again, while 39% of the yellow grape leaves in Comparative Example 1 turned green again; on the 21st day after treatment, 89% of the yellow grape leaves treated in Example 1 turned green again, while 75% of the yellow grape leaves in Comparative Example 1 turned green again, and the yellow leaf turning green rate increased by 14%. This shows that the treatment of yellow grape leaves under the scheme of Example 1 of the present invention is effective.

[0046] It can be seen from the statistical data that in the embodiments of the present invention, if any one fertilizer is removed, the effect of treating the yellowing of grape leaves will be affected: Compared with Example 1, in Comparative Example 2, the foliar spraying treatment of amino acid liquid fertilizer was removed, and the yellow leaf regreening rate of grapes was reduced by 10% on the 14th day and by 12% on the 21st day; Compared with Example 1, in Comparative Example 3, the flushing or drip irrigation treatment of the iron-containing compound was removed, and the yellow leaf regreening rate of the grapes was reduced by 23% on the 14th day, and the yellow leaf regreening rate of the grapes was reduced by 21% on the 21st day; Compared with Example 1, in Comparative Example 4, the flushing or drip irrigation treatment of the organic water-soluble fertilizer containing MBT humic acid was removed, and the yellow leaf regreening rate of the grapes was reduced by 16% on the 14th day and by 18% on the 21st day; Compared with Example 1, in Comparative Example 5, the flushing or drip irrigation treatment of the MB35-5 microbial agent was removed, and the yellow leaf regreening rate of the grapes was reduced by 27% on the 14th day, and the yellow leaf regreening rate of the grapes was reduced by 34% on the 21st day; The above experiments can prove that under the prevention and treatment methods of the present invention, the yellowing of grape leaves can be significantly treated, and removing any fertilizer will affect its effect.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preventing and treating yellow grape leaves, characterized in that: Including prevention and treatment of yellow grape leaves; The prevention of yellow grape leaves comprises the following steps: S1. During the growth period of new grape shoots, apply iron-containing compound and organic water-soluble fertilizer containing MBT humic acid by flushing or drip irrigation, and spray amino acid liquid fertilizer on the leaves; S2. During the grape flowering period to the berry growing period, organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent should be applied by flushing or drip irrigation, and amino acid liquid fertilizer should be sprayed on the leaves; The treatment of yellow grape leaves comprises the following steps: A1. During the grape growth period, flush or drip irrigate the grapes with yellow leaves with iron compound, organic water-soluble fertilizer containing MBT humic acid, MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves; A2. After an interval of 10 to 20 days, flush or drip irrigate with organic water-soluble fertilizer containing MBT humic acid and MB35-5 microbial agent, and spray amino acid liquid fertilizer on the leaves.

2. The method for preventing and treating yellow grape leaves according to claim 1, characterized in that: In step S1, the iron-containing composite agent is applied by flushing or drip irrigation once, and the dosage is 500-1000 g / mu; The organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1200 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

3. The method for preventing and treating yellow grape leaves according to claim 1, characterized in that: In step S2, the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30 L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation 1 to 2 times, with a dosage of 5 to 10 L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1200 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

4. The method for preventing and treating yellow grape leaves according to claim 1, characterized in that: In step A1, the iron-containing composite agent is applied by flushing or drip irrigation once, and the dosage is 1000-1500 g / mu; The organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation once, and the dosage is 5-10L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1000 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

5. The method for preventing and treating yellow leaves of grapes according to claim 1, characterized in that: In step A2, the organic water-soluble fertilizer containing MBT humic acid is applied by flushing or drip irrigation once, and the dosage is 10-30 L / mu; The MB35-5 microbial agent is applied by flushing or drip irrigation once, and the dosage is 5-10L / mu; The amino acid liquid fertilizer is sprayed at a multiple of 800 to 1000 times, 2 to 3 times, and each spraying interval is 5 to 7 days.

6. The method for preventing and treating yellow leaves of grapes according to claim 1, characterized in that: The components of the iron-containing complex include one or more of EDDHA-iron, EDTA-iron, and sugar alcohol iron.

7. The method for preventing and treating yellow grape leaves according to claim 1, characterized in that: The components of the amino acid liquid fertilizer include amino acids, growth regulators, nutrient elements and water.

8. The method for preventing and treating yellow leaves of grapes according to claim 7, characterized in that: The amino acids include one or more of sodium polyaspartate, glycine, sodium glutamate, phenylalanine, methionine, and L-tryptophan.

9. The method for preventing and treating yellow grape leaves according to claim 7, characterized in that: The growth regulator includes one or more of calcium gluconate, mannitol, sorbitol, potassium cinnamate, betaine, and chlorella polysaccharide; The nutrient elements include calcium nitrate tetrahydrate, magnesium nitrate hexahydrate, EDTA zinc, sodium octaborate tetrahydrate and ammonium molybdate.

10. Use of the method according to any one of claims 1 to 9 in preventing and treating yellow leaves of fruit trees.

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