CN113749130B - Sugarcane organism seed stem coating agent and preparation method thereof - Google Patents

Abstract

The invention provides a cane organism stem coating agent and a preparation method thereof. The seed stem coating agent has the advantages of ecology, environmental protection and capability of effectively improving the emergence rate and the tillering rate of sugarcane.

Description

A kind of sugarcane biological seed stem coating agent and preparation method thereof

Technical Field

The invention belongs to the field of sugarcane cultivation, and particularly relates to a sugarcane biological seed stem coating agent and a preparation method thereof.

Background Art

Sugarcane is an important sugar crop in my country, with a national sugarcane planting area of more than 20 million mu. Sugarcane is easily infected by pests and diseases during planting, many of which are spread through seedlings, such as bromeliad disease, smut, virus disease, and various sugarcane borers and sugarcane mealybugs. One-third of the country's area needs to be replanted every year, and a large amount of seeds are used. Improper handling of sugarcane seedlings or the use of unhealthy seedlings can easily lead to problems such as low germination rate, low tillering rate, and susceptibility to pests and diseases.

Shi Di Shui and Feng You Jing are both common Chinese patent medicines. Shi Di Shui is a heat-removing agent, made from camphor, dried ginger, rhubarb, fennel, cinnamon, pepper, and eucalyptus oil. It has the effects of strengthening the spleen and removing heat, and is mainly used for dizziness, nausea, abdominal pain, and gastrointestinal discomfort caused by heat stroke. Feng You Jing's main ingredients are menthol, camphor, clove powder, sesame oil, etc., and it is used for headaches, dizziness, and motion sickness caused by mosquito bites and colds. Studies have shown that Shi Di Shui and Feng You Jing have certain insecticidal and bactericidal effects, but there are few reports on their application in the prevention and control of pests and diseases in agriculture.

The most economical and effective measure to prevent sugarcane seed-borne diseases and pests is to use chemical agents to disinfect sugarcane seeds. However, with the implementation of the national policy of reducing the use of pesticides and fertilizers and the increasing pollution and long-term residue of chemical agents, the development of environmentally friendly, efficient and safe agents has become a hot topic.

Summary of the invention

The main purpose of the present invention is to overcome the above-mentioned defects and provide a sugarcane biological seed stem coating agent and a preparation method thereof. The seed stem coating agent has the advantages of being eco-friendly and being able to effectively improve the emergence rate and tillering rate of sugarcane.

To achieve the above object, the technical solution of the present invention is as follows:

A sugarcane biological seed stem coating agent is composed of the following components in parts by mass: 1-20 parts of oil phase, 3-6 parts of wind oil essence, 12-24 parts of ten drops of water, 2-4 parts of water-soluble water retaining agent, 0.001-0.1 of plant growth promoter, 1-8 parts of emulsifier and 1-10 parts of film-forming agent.

Preferably, it is composed of the following ingredients in parts by weight: 10-20 parts of tea tree oil, 3-6 parts of Fengyoujing, 20-24 parts of Shidishui, 2-4 parts of polyglutamic acid, 0.005-0.1 of brassinolide, 4-8 parts of emulsifier, and 5-10 parts of film-forming agent.

Preferably, the oil phase is selected from tea tree oil.

Preferably, the water-soluble water-retaining agent is selected from polyglutamic acid.

Preferably, the plant growth promoter is selected from brassinolide.

Preferably, the emulsifier is at least one of alkylphenol polyoxyethylene ether, polyoxyethylene sorbitan fatty acid ester, and sorbitan fatty acid ester.

Preferably, the film-forming agent is at least one of carboxymethyl cellulose, polyvinyl alcohol and gum arabic.

The preparation method of the above-mentioned sugarcane biological seed stem coating agent comprises the following steps:

S1. Dissolve the oil phase, Fengyoujing, ten drops of water, water-soluble water-retaining agent, plant growth promoter, and emulsifier in parts by mass and stir to obtain a mother solution for standby use;

S2. The film-forming agent and the masterbatch obtained in step (1) are thoroughly stirred and mixed to obtain a mixture, and then water is added to the mixture and stirred to obtain a paste solution to obtain a seed stem coating agent.

Preferably, in step S2, the amount of water used is 900-1200 parts.

The present invention further provides the use of the above-mentioned sugarcane biological seed stem coating agent in preparing healthy sugarcane seed stems.

The present invention has the following advantages:

(1) The present invention can effectively prevent and control sugarcane seedling diseases and insect pests, and has good sterilization and insecticide disease prevention effects, reducing the sugarcane seedling heart rate by 4-7%, and has good disease and insect prevention effects, and can effectively solve the problem of being susceptible to disease and insect pests.

(2) This coating agent uses biological active ingredients with bactericidal, insecticidal, root-promoting and germination-promoting effects in a coordinated manner, so that the sugarcane seed stems soaked in this coating agent can take root and germinate quickly, have a high germination rate and a high tillering rate. The germination rate can be increased by 10~15%, the number of effective stems can be increased by 9~13%, and the sugarcane yield can be increased by 12~18%.

(3) The coating agent of the present invention is friendly to the environment and sugarcane species, has no toxic side effects, and has no residue or pollution after use.

(4) The present invention preferably uses tea tree oil as the oil phase. Tea tree oil is a pure natural plant essential oil extracted from the leaves of Melaleuca alternifolia of the Myrtaceae family by distillation. It is native to Australia and is a colorless to light yellow liquid with a characteristic aroma and antibacterial, anti-inflammatory, insect repellent and acaricide effects. It is pollution-free, non-corrosive and has strong permeability. It can enable the biological active ingredients to quickly penetrate into the sugarcane seedlings, thereby improving the bactericidal, insecticidal, root-promoting and germination-promoting effects of the coating agent.

(5) The present invention preferably uses polyglutamic acid (γ-PGA) as a water-soluble water-retaining agent. Polyglutamic acid is also called natto gum and polyglutamic acid. It is a biodegradable, non-toxic biopolymer produced by microbial fermentation. The molecular weight distribution is between 100 kDa and 10,000 kDa. Poly-γ-glutamic acid has excellent water solubility, super strong adsorption and biodegradability. The degradation product is pollution-free glutamic acid. It is an excellent environmentally friendly polymer material, which is environmentally friendly, can improve fertilizer utilization, enhance crop resistance, and can slowly release biological active ingredients, prolong the efficacy time, and enhance the prevention and control effect, so that the seedlings can grow healthily for a longer period of time.

DETAILED DESCRIPTION

The following is a detailed description in conjunction with specific embodiments, but it should be understood that the scope of protection of the present invention is not limited by the specific embodiments. The raw materials used in the examples are all commercially available unless otherwise specified.

Example 1: A sugarcane biological seed stem coating agent, 400 grams of alkylphenol polyoxyethylene ether is added with 1000 grams of tea tree oil, 300 grams of wind oil essence, 2000 grams of ten drops of water, 300 grams of polyglutamic acid, and 0.5 grams of brassinolide to make a mother liquor, then 800 grams of carboxymethyl cellulose is added and stirred thoroughly, and finally 100 kilograms of water is added and stirred evenly to form a coating agent.

Example 2: A sugarcane biological seed stem coating agent, 800 grams of polyoxyethylene sorbitan fatty acid ester is added with 2000 grams of tea tree oil, 600 grams of wind oil, 2400 grams of ten drops of water, 400 grams of polyglutamic acid, and 10 grams of brassinolide to make a mother liquor, and then 1000 grams of gum arabic is added and stirred thoroughly, and finally 100 kilograms of water is added and stirred evenly to form a coating agent.

Seed soaking method: Use the second generation of virus-free healthy seed stems, cut them into double-bud segments for seedlings, put 400 buds/bag in a small mesh bag, put them into the coating agent and soak them for 8 minutes before planting directly. While sterilizing the sugarcane seed stems, it also supplements the nutrients in the sugarcane stems to improve the survival rate of sugarcane seedlings.

The above formula was used in a "double-high" sugarcane base with a complete water source and drip irrigation system. The test results of different main sugarcane varieties treated with sugarcane biological seed stem coating agent and untreated (control) (see Table 1) showed that the test effect of sugarcane seed stem coating agent was better than that of untreated (control).

The emergence rate of the seed stem coating agent treatment was increased by 13.02% to 16.33% compared with the control, the dry heart rate of sugarcane seedlings was reduced by 2.30% to 7.61%, the number of effective stems increased by 9.18% to 15.50%, and the sugarcane yield increased by 13.95% to 17.51%.

Table 1

Example 3: A biological sugarcane seed stem coating agent, after adding 1500g of tea tree oil, 400g of Fengyoujing, 2200g of Shidishui, 300g of polyglutamic acid, and 1g of brassinolide to every 600g of dehydrated sorbitan fatty acid ester to make a mother solution, 500g of polyvinyl alcohol is added and stirred thoroughly, and finally 90kg of water is added and stirred evenly to form a coating agent. The coating agent is directly used on both ends of freshly cut sugarcane seed stems, which can sterilize and disinfect the sugarcane seed stems, supplement nutrients, and has drought resistance function.

Example 4: A coating agent for biological sugarcane seed stems. After 500 grams of alkylphenol polyoxyethylene ether is added with 1800 grams of tea tree oil, 500 grams of wind oil essence, 2000 grams of ten drops of water, 200 grams of polyglutamic acid, and 5 grams of brassinolide to make a mother solution, 600 grams of carboxymethyl cellulose is added and stirred thoroughly, and finally 110 kilograms of water is added and stirred evenly to form a coating agent. The coating agent is directly used on both ends of freshly cut sugarcane seed stems, which can sterilize and disinfect the sugarcane seed stems, supplement nutrients, and has drought resistance function.

The above formula is used in dry slopes without water sources. The test results of different main sugarcane varieties treated with sugarcane biological seed stem coating agent and untreated (control) (see Table 2) show that the test effect of sugarcane seed stem coating agent is better than that of untreated (control). The emergence rate of seed stem coating agent treatment is 10.53% to 14.69% higher than that of the control, the rate of sugarcane seedling withering is reduced by 1.31% to 4.99%, the number of effective stems is increased by 9.21% to 13.57%, and the sugarcane yield is increased by 5.88% to 13.65%.

Table 2

Comparative Example 1: A sugarcane biological seed stem coating agent, after adding 1000 grams of tea tree oil, 500 grams of wind oil, 300 grams of polyglutamic acid, and 0.5 grams of brassinolide to every 400 grams of alkylphenol polyoxyethylene ether to make a mother liquor, 800 grams of carboxymethyl cellulose is added and stirred thoroughly, and finally 100 kilograms of water is added and stirred evenly to form a coating agent.

The main sugarcane varieties and planting methods were the same as those in Example 1. The emergence rate, sugarcane seedling dead heart rate, effective stem number, and sugarcane yield are shown in Table 3:

Table 3

Comparative Example 2:

A sugarcane biological seed stem coating agent is prepared by adding 1000 g of tea tree oil, 2000 g of ten drops of water, 300 g of polyglutamic acid and 0.5 g of brassinolide to every 400 g of alkylphenol polyoxyethylene ether to make a mother liquor, then adding 800 g of carboxymethyl cellulose and stirring well, and finally adding 100 kg of water and stirring well to form a coating agent.

The main sugarcane varieties and planting methods were the same as those in Example 1. The emergence rate, sugarcane seedling dead heart rate, effective stem number, and sugarcane yield are shown in Table 4:

Table 4

By comparing with Example 1, it can be seen from Comparative Examples 1 to 2 that Ten Drops of Water and Fengyoujing have better control effects on controlling underground pests of sugarcane. If only one of Ten Drops of Water and Fengyoujing is added alone, the emergence rate is less than 50%, and the sugarcane seedling withering heart rate exceeds 15% (higher than Example 1), indicating that the mixing of the two has a certain synergistic effect.

It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various modifications or changes to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application.

Claims (6)

1. A cane organism seed stem coating agent, characterized in that:

the composite material consists of the following components in parts by weight: 1-20 parts of oil phase, 3-6 parts of essential balm, 12-24 parts of ten-drop water, 2-4 parts of water-soluble water-retaining agent, 0.001-0.01 part of plant growth promoter, 1-8 parts of emulsifier and 1-10 parts of film forming agent;

the oil phase is selected from tea tree oil; the water-soluble water-retaining agent is selected from polyglutamic acid; the plant growth promoter is selected from brassinolide;

the preparation method of the sugarcane organism seed stem coating agent is characterized by comprising the following steps:

s1, dissolving and uniformly stirring an oil phase, essential balm, ten drops of water, a water-soluble water-retaining agent, a plant growth promoter and an emulsifier according to parts by weight to obtain mother liquor for standby;

s2, fully stirring and uniformly mixing the film forming agent and the master batch prepared in the step 1 to obtain a mixture, and then adding water into the mixture and uniformly stirring the mixture to obtain a pasty solution to obtain the seed stem coating agent.

2. The sugarcane organism seed stem coating agent according to claim 1, wherein:

the composite material consists of the following components in parts by weight: 10-20 parts of tea tree oil, 3-6 parts of essential balm, 20-24 parts of ten-drop water, 2-4 parts of polyglutamic acid, 0.005-0.01 part of brassinolide, 4-8 parts of an emulsifying agent and 5-10 parts of a film forming agent.

3. The sugarcane organism seed stem coating agent according to claim 1, wherein:

the emulsifier is at least one of alkylphenol ethoxylates, polyoxyethylene sorbitan fatty acid ester and sorbitan fatty acid ester.

4. The sugarcane organism seed stem coating agent according to claim 1, wherein:

the film forming agent is at least one of carboxymethyl cellulose, polyvinyl alcohol and gum arabic.

5. The sugarcane seed stem coating agent according to claim 1, wherein: in the step S2, the water consumption is 900-1200 parts.

6. Use of the cane organism seed stem coating agent of any one of claims 1-5 in the preparation of healthy seed stems of cane.