The latest pre-sowing treatment of wheat seeds
Wheat is one of the main food crops in China, which has a wide planting area in our country. At present, the annual consumption of wheat in China has reached hundreds of thousands of tons. The yield and quality of wheat are closely related to the quality of seeds. Therefore, we all need to disinfect and germinate the seeds before sowing, so what should we do with the wheat seeds before sowing? Let's introduce it to you by the editor.
1. Seed selection
The choice of seeds is very important. after we have selected high-quality seeds, we need to screen the seeds again to pick out moths, diseases, dried seeds and impurities. Pay special attention to whether there are grass seeds or degraded seeds of wild wheat. This can not only ensure the high yield and tidiness of the seedlings, but also reduce the cost of weeding. When selecting seeds, if the number of seeds is small, sift them out with a sieve. If there are a large number of seeds, then it is best to prepare a seed selection machine, which is not only simple but also can ensure the quality of seeds.
2. Seed drying
It takes a certain amount of time for wheat seeds to germinate, usually in about a week. When sowing, we should advance the emergence rate of seeds as soon as possible, because the earlier emergence can not only make full use of the internal nutrients of the seeds, so that the seedlings can display three true leaves as soon as possible, but also carry out photosynthesis as soon as possible and improve the growth ability of seedlings. Therefore, in order to advance the time of seedling emergence, we should break the dormancy period of seeds as soon as possible. Therefore, it is necessary to choose a sunny day to dry the seeds in the sun before sowing, which can effectively end the dormancy period of the seeds.
3. Seed dressing
Seed dressing can reduce the germs of seeds or pests in the soil. That is, after mixing with water and chemicals, we mix them with seeds, and when we mix seeds, we should carry out purposefully according to common diseases and insect pests and soil-borne diseases. Therefore, it is generally dominated by germicidal insecticides with internal absorption. Some farmers are used to using micro-fertilizer to mix seeds, this method can only improve the time of seed germination and emergence, and has no germicidal effect. We should mix seeds with chemicals such as strychnine about 2-3 weeks before sowing to inhibit the occurrence of diseases such as rust and powdery mildew. Stir it fully, then lower the seal for about 2 days.
4. Soaking seeds
The main purpose of seed soaking is to improve the germination ability of wheat seeds. First of all, we need to soak the seeds in warm water of about 53 degrees for about 12 minutes, then pick them up and soak them in cold water immediately for 5-6 minutes. Then put it in warm water of 55 degrees, and then cycle it 7-8 times. It can not only effectively improve the germination ability of seeds, but also play a role in sterilization. Then you can use quicklime to soak in water for 1 day, and then pick it up and dry it to prepare for sowing, and the effect is about the same.
When soaking seeds with quicklime, we should pay attention to the use of new lime, not scattered lime that has been stored for too long. Do not stir the seeds in the soaking process to prevent the loss of seed soaking effect. That's all for today's introduction. This article is for reference only. I hope it can help you all.
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