Applying Water-retaining Agent to Increase Corn Germination

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Due to the scarcity of precipitation in most parts of the country during the winter and spring, there is a wide range of droughts. Now that spring maize is about to be planted, increasing the germination rate of spring corn is a key link.

How to increase the drought resistance and germination rate of spring maize in relatively dry soil? As we all know, seed germination requires moderate amounts of water. If the water content in the soil is less than the moisture needed for seed germination, it cannot germinate normally or germinate irregularly. For example, if the seeds are generally germinated, it takes more than 20-30% of the weight of the water to germinate. Therefore, in order to germinate the spring corn normally in arid soil and to germinate neatly and without seedlings, the anti-drought and water-retaining agent can play a role. .

Use of drought-resistant water retention agent: (1) Seed coating. For dressing seedlings: After diluting the drought-resistant water-retaining agent 3 times, add the seeds that need to be coated, and mix and boring for 4-5 hours. The seeds can be sown without sticking. Used for soaking seed: Soak the seed in the drought-resistant water retention agent for 12 hours, soak it after drying. (2) Seedling roots. When seedlings and seedlings are transplanted, roots are removed from the roots and planted after dipping. (3) Cut lychee. For the branches that need to be cut, they can be soaked in the base of the branches with 4-5 cm of anti-drought and water-retaining agent, and soaked and evenly planted. (4) Spray. Each 500 g of drought-resistant water retention agent is used to spray 20 kg of water for field spraying, which can reduce the leaf surface evaporation and improve the ability to resist drought and dry hot wind.

For use on corn or other seeds, the first technique is used.

When using drought-resistant water-retaining agents, the following points should be noted: (1) The concentration of drought-resistant water-retaining agent should not be too low, generally 50 grams of drought-resistant water-retaining agent is replenished with 100-150 grams of water, but the concentration should not be too high, which will increase the cost. (2) After the anti-drought and water-retaining agent is replenished with water, the seeds need to be stuffy for at least 5 hours, and the seeds must be dried and then sown. (3) Seeds treated with drought-retention and water-retaining agents are required to be sown within 3 days. Otherwise, the seeds may be mildewed (special attention should be paid to the high temperature in sunny days), which may affect the seed germination. (4) Pay attention to safety. Most corn varieties now have a coating, and the coating is toxic, and the drought-retention agent increases the viscosity of the seed surface and therefore must avoid contact with the skin. (5) According to the author's many years of experience, when the drought-resistant water-retaining agent is used, whether it is drought or when the rain is rich, it can be used for seed dressing, and it is not when the rainwater is sowed. Instead, the rainwater is good at the time of sowing, and it can absorb more moisture, and when it is dry, it releases water for crop growth. Some farmers believe that it is a wrong idea to sow harmful areas with anti-drought and water-retaining agents when it rains.

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