First, the sun. Sowing seeds can increase the germination potential of the seeds. Before soaking seeds, select sunny day, pour the seeds on the concrete floor, and evenly spread them into 3-4 cm thick. It is necessary to dig and turn them lightly to make the seeds evenly exposed to light. Generally, it should be dried for 1-2 days. Do not prick the seed coat when turning the seed. When the temperature is high enough, the number of seed turnings should be increased. Second, selection. Seed selection can further remove the cereals, diseased grains, etc., so that the seeds reach fullness evenly, so as to ensure that the seedlings grow neatly and consistently. Usually two methods are used, clear water and salt water. The key to brine selection is to have a suitable proportion of salt water, with a specific gravity of 1.10 to 1.13. The specific preparation method is: 100 kg of fresh water plus 20-25 kg of salt. After mixing and dissolving, the specific gravity meter can be used to replace fresh eggs. It is advisable to put a fresh egg into the solution to reveal a 5-cent coin size. Third, soaking Seeds The purpose of impregnating the pesticide is mainly to kill the bacteria that the rice seeds carry. The main diseases transmitted by rice seeds include bakanae disease, rice blast disease, rice smut, bacterial blight, and leaf stripe disease transmitted by seedlings of Laodelphax striatellus. Currently used soaking agents are "Bacterial insects", "Imidacloprid" and so on. There are three main points to use. First, the amount of medicine and the amount of water. With Bacterial Insect Clear 1.5 to 2 packs (20 grams) plus 10% imidacloprid 10 grams, two agents mixed first, add a small amount of water into a paste, then add 8 kg of water, evenly diluted. Second, the amount of rice seed and the amount of liquid medicine: 5 to 6 kg of dried rice will be immersed in a formulated mixture of 8 kg of zeocin and imidacloprid. Turn it up and down several times. The seed soaking container must be covered. And placed in a cool dark place. If there is a large amount of rice to be immersed in the same container, the liquid may be prepared according to the above ratio. Third, soaking time and temperature: Soaking seeds for 60 hours (three nights and two days) at a daily average temperature of 18 to 20°C, and soaking for 48 hours at 23 to 25°C. Soaking before the end of May generally requires 60 hours of soaking. In the beginning of June, sowing requires 48 hours of soaking time. The time of foot soaking is the key to ensure efficacy. Seed soaking time can also be based on the seed enough moisture, its standard is the transparent shell, rice belly white visible stripping husk rice easy to break and no sound, can be crushed by hand, indicating that the seeds have enough water. Usually about 2-3 days. After soaking, they do not need to be washed to direct germination. 4. Germination and germination is the process of artificially creating suitable water, gas, and heat conditions to promote the concentrated and neat germination of rice seeds. Under the same other conditions, germination sowing faster than non-germination seedling emergence more than 3 days, and the seedlings are neat, consistent, seedlings increased by 5% -10%. Therefore, no matter what kind of seedlings are used, they should be sown and then sown. Rice seeds can be germinated after strict disinfection and sufficient soaking of sufficient water.
The main technical requirement for germination is: "fast, homogeneous, uniform, and strong." "Fast" means that the germination is rapid and the buds are promptly promoted within 2 days. The bursting of the chest requires 24 hours, and the appropriate temperature and germination takes about 12 hours. The "qi" means that more than 90% of the rice seeds meet the germination standard; "even" is The roots and buds are neat and consistent; "strong" means that the young buds are thick, and the roots and buds have a proper proportion; the color is bright white, the smell is fresh, and there is no flavor. The basic technology of germination is "high-temperature rupture of the chest, moisturizing and priming, and low-temperature drying buds". 1. High-temperature bursting of the chest. When an embryo breaks through the chaff, it is called a chest break. After the seed sucks enough water, the proper temperature is the main condition for breaking the chest quickly and neatly. In the high temperature limit of 38 °C (ie, the maximum maximum temperature may not exceed 38 °C), the higher the temperature, the more vigorous the physiological activity of the seed, the more rapid and neat chest rupture. On the contrary, the broken chest is slow and irregular. It is easy to form large and small seedlings after sowing. Put the seeds with sufficient moisture into warm water of about 50°C (hand not hot), soak for 5-10 minutes (increases energy), immediately wrap the seeds with wet sacks, and cover with straw insulation (sack) The function of rice straw is air permeability, heat preservation, and moisture retention. Rice seeds will heat up very quickly. The temperature should be maintained at about 35°C. Do not use plastic cloth, plastic woven bags, or nylon bags to wrap them. Because of their poor air permeability, they are likely to cause hypoxia (to breathe large amounts of oxygen when the seeds are broken), and to produce alcohol, so that the death of seed poisoning rice should be mastered after its temperature rises. The temperature inside and outside the valley stack is the same, and if necessary, it is turned and mixed so that the heat is evenly distributed between the rice and the seeds are promoted quickly and neatly. Generally 12-24 hours can break the chest. 2. Moisturizing and pregerminating: When the seed white bud is exposed, it is the most easy to burn buds. Immediately lower the temperature to below 28°C, as long as it does not exceed 30°C, it will not burn buds. After budding, the rice straw is peeled off, the temperature of the hotbed is controlled at 25-28 degrees, the humidity is kept at about 80%, and the standard teeth can be elicited after about 12 hours of maintenance. When the buds are long and half grainy, the roots are long and grainy. Can be sown to achieve germination requirements. Seedlings for transplanting seedlings should have a germination standard of 2 mm or 2 mm. 3, low temperature dry bud: Because budding is carried out at a higher temperature, this temperature is generally higher than the temperature at that time. Spread the buds to allow the buds to exercise, enhance the adaptability of the buds to the external environment after sowing, enhance the resistance of the buds, and increase the vitality. Generally, after the buds have been promoted, the indoor booth is air-dried, and the seedlings are planted at a natural temperature for one day.
The main technical requirement for germination is: "fast, homogeneous, uniform, and strong." "Fast" means that the germination is rapid and the buds are promptly promoted within 2 days. The bursting of the chest requires 24 hours, and the appropriate temperature and germination takes about 12 hours. The "qi" means that more than 90% of the rice seeds meet the germination standard; "even" is The roots and buds are neat and consistent; "strong" means that the young buds are thick, and the roots and buds have a proper proportion; the color is bright white, the smell is fresh, and there is no flavor. The basic technology of germination is "high-temperature rupture of the chest, moisturizing and priming, and low-temperature drying buds". 1. High-temperature bursting of the chest. When an embryo breaks through the chaff, it is called a chest break. After the seed sucks enough water, the proper temperature is the main condition for breaking the chest quickly and neatly. In the high temperature limit of 38 °C (ie, the maximum maximum temperature may not exceed 38 °C), the higher the temperature, the more vigorous the physiological activity of the seed, the more rapid and neat chest rupture. On the contrary, the broken chest is slow and irregular. It is easy to form large and small seedlings after sowing. Put the seeds with sufficient moisture into warm water of about 50°C (hand not hot), soak for 5-10 minutes (increases energy), immediately wrap the seeds with wet sacks, and cover with straw insulation (sack) The function of rice straw is air permeability, heat preservation, and moisture retention. Rice seeds will heat up very quickly. The temperature should be maintained at about 35°C. Do not use plastic cloth, plastic woven bags, or nylon bags to wrap them. Because of their poor air permeability, they are likely to cause hypoxia (to breathe large amounts of oxygen when the seeds are broken), and to produce alcohol, so that the death of seed poisoning rice should be mastered after its temperature rises. The temperature inside and outside the valley stack is the same, and if necessary, it is turned and mixed so that the heat is evenly distributed between the rice and the seeds are promoted quickly and neatly. Generally 12-24 hours can break the chest. 2. Moisturizing and pregerminating: When the seed white bud is exposed, it is the most easy to burn buds. Immediately lower the temperature to below 28°C, as long as it does not exceed 30°C, it will not burn buds. After budding, the rice straw is peeled off, the temperature of the hotbed is controlled at 25-28 degrees, the humidity is kept at about 80%, and the standard teeth can be elicited after about 12 hours of maintenance. When the buds are long and half grainy, the roots are long and grainy. Can be sown to achieve germination requirements. Seedlings for transplanting seedlings should have a germination standard of 2 mm or 2 mm. 3, low temperature dry bud: Because budding is carried out at a higher temperature, this temperature is generally higher than the temperature at that time. Spread the buds to allow the buds to exercise, enhance the adaptability of the buds to the external environment after sowing, enhance the resistance of the buds, and increase the vitality. Generally, after the buds have been promoted, the indoor booth is air-dried, and the seedlings are planted at a natural temperature for one day.
In the era of relatively backward agricultural civilization, any spread of locusts, armyworms, borers and other pests will take big risk even low-yield crops, while the development of pesticides makes these pests under control, played an important role in the people's production and life and people health . The Birth of pesticide industry, greatly changed human history of completely dependent on the rice. Argo chemical have widespread in Pesticides, as well as insecticides fungicides, acaricides, herbicides, plant growth regulating agents. The use of pesticides greatly increased agricultural production to ensure that the population growth has brought a lot of material needs, but also take the problem of residues of pesticides. We are committed to the development of efficient, low toxicity and residue pesticide products, the annual export volume exceeds hundreds of tons.
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Arbidol, Arbidol Hydrochloride.
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