Seed Treatment agents play an obvious role and advantage in reducing and enhancing pesticide efficiency and preventing diseases and pests in crop seedlings and even the whole life cycle. Seed Treatment agents play an increasingly important role in agricultural production. Pilarquim has already launched two kinds of Seed Treatment agents, Miao De Yi and seed guard, which are loved and sought after by many growers. In 2020, Pilarquim will introduce three new Seed Treatment agents, Miao Wanjin, Miao Jianqiang and Miao Mei Qi. In addition to continuing to walk along the line of disease and insect pests, microcapsule technology will also be applied to Seed Treatment agent, so that Seed Treatment agent can play a longer and better efficacy.
1. What is Seed Treatment agent
Seed Treatment agent is made of insecticide, fungicide, micronutrient fertilizer, plant growth regulator, film-forming agent, antifreeze and other auxiliaries. It not only plays a specific role in preventing and controlling underground pests, soil borne and seed borne diseases, improving seed germination rate, promoting healthy growth of crops, improving crop yields and improving crop quality, but also saving, saving labor and improving economic and ecological benefits. Seed treatment was gradually developed from the beginning of the chemical soaking and seed dressing to the seed dressing method. "Seed Treatment agent coating technology" also developed from early "pest control" to "improving seed quality, increasing seed vigor, promoting seed germination and early seedling growth" and so on. At present, seed treatment is one of the most important, effective, convenient and economical means of plant protection. It is an important trend of plant protection in the future.
2. Classification of Seed Treatment agents
Seed Treatment agent has the characteristics of high efficiency, economy, safety, long duration and versatile effect. It is developed on the basis of suspending agent, powder and wettable powder. It has liquid and solid powder. Some are prefabricated and stored for a long time, and some are ready for use now. According to the application range, Seed Treatment agents can be divided into general and special types. The universal type can be used for Seed Treatment of many crops, while the special coating agents can only be used for Seed Treatment of single crops, such as cotton, corn, wheat, soybean and other special Seed Treatment agents. If the wrong crops are used for special purposes, they may cause phytotoxicity or cause a decrease in effectiveness.
Classification by form
Dry powder Seed Treatment agent: the active and non-active ingredients are crushed and mixed by air flow dry method, and seed dressing is used for coating.
Suspension Seed Treatment agent: a suspension dispersion system which combines active ingredients and some non active components after wet grinding and mixed with other components, is coated by atomization. This kind of Seed Treatment agent is the main type.
Colloidal suspension type Seed Treatment agent: a colloidal suspension and dispersion system, which is formed by mixing the active ingredients with the inactive ingredients after dissolving them with appropriate solvents and auxiliaries.
Classification by use
Physical type: it contains many filling materials and adhesives but does not contain chemical active ingredients. It is mainly used for coating small seed pellets such as rape, tobacco and vegetables.
Chemical type: containing pesticides, fertilizers, hormones and other chemical active substances, with comprehensive efficacy, but relatively prone to drug damage. This kind of Seed Treatment agent is the mainstream type and is also one of the main developing directions of film Seed Treatment agent in the future.
Biotype: contains microorganisms or secretions that are effective for crops.
Special type: including Seed Treatment agent with special use such as water storage and drought resistance, oxygen escape, weeding, pH adjustment, etc.
Comprehensive type: it is a comprehensive application of the effective components of the above four kinds of coating agents.
Classification by usage time
In situ coating agent: the seeds shall be coated with such coating agent several hours or days before sowing, and shall be sown immediately after the coating film solidifies, and the coated seeds shall not be stored.
Prepackaged Seed Treatment agents: seeds can be sowed at any time after being coated with this Seed Treatment agent and can be stored for a certain time to sow seeds.
Classification by pesticide processing dosage form
According to this method, Seed Treatment agents can be divided into five dosage forms: FS, EWS, SES, DFS and CS.
3. Function and characteristics of Seed Treatment agent
1) Promote the standardization, pelletizing and commercialization of fine seeds, and improve the quality of seeds by coating Seed Treatment agents, to ensure the emergence of all seeds, all and strong, and save seeds at the same time. In addition, it has a warning color, which eliminates the separation of grain and seed.
2) Comprehensive prevention and control of diseases, insects, birds, rodents and deficiency. The seed coat is planted in the soil, and the seed coat forms a barrier to protect the seeds around the seeds, to disinfect the seeds and prevent the infection of pathogens. Trace elements such as manganese, zinc, molybdenum and boron contained in Seed Treatment agents can effectively prevent the deficiency of nutrient elements in crops.
3) Increase yield, promote rooting and germination, stimulate plant growth.
4. Characteristics and benefits of Seed Treatment agent
1） Seed Treatment agents can expand and breathe in soil without being dissolved, so that seeds can germinate normally and slow release of pesticides and fertilizers. They can kill underground pests, control seed pathogens, increase seed germination rate and reduce seed consumption.
2） After Seed Treatment is coated with seeds, the seeds are placed on the outer surface of the seeds to form a protective film, which is wrapped around the seeds and is not easily affected by external environment. The utilization rate is high, so that the pests around them are difficult to survive. No other agents can achieve good control and seedling protection effect.
3） Seed Treatment agent is an advanced preparation processed by high-tech technology. After Seed Treatment, it can exert its efficacy in a small range and be used in a concealed way. It has no pollution to the air and soil environment, does not harm the natural enemies and is safe to use. Generally, the effective ingredients are not easy to spread to the surrounding areas quickly and are not affected by the sun, rain and high temperature, so it has a slow release effect, high utilization efficiency and slow release of efficacy It improves the efficacy period and thus has a longer validity period.
4） Easy to sow seeds. The seeds are smooth after coating treatment, which is conducive to mechanical seeding. At the same time, coating agents can regulate the size of seed particles and improve the efficiency of mechanical seeding.
5. How to choose Seed Treatment agent
One is to see if the product "three certificates" are complete, whether the product is registered with the Ministry of agriculture, whether it is permitted to produce, and whether there is a product quality standard.
Second, we should choose the right formulation of Seed Treatment;
Three as a good film quality, high quality film-forming agent is a high molecular polymer, which is fast and uniform in film formation, good in air permeability, and is not susceptible to stuffy bud, and the liquid can give full play to its effect.