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Herb seed winter storage needs good five
The winterization of pasture seeds needs to be improved by five stages: First, the moisture control must be shut down before the arrival of the cold weather in mid and late October. The water content must be reduced to the safe amount required by the seeds, that is, below 14%. If the water content is too high, the seeds will be subjected to freezing injury and some or all of them will lose their ability to germinate. Second, the quality of good storage seeds forage seed if there are more immature or broken seeds, as well as other large amounts of dust and other impurities, will have adverse consequences for the safe storage of seeds. Therefore, we must pay attention to maintaining the purity and cleanliness of seeds during storage. Third, the good kind of library to prevent moisture and ventilation off to achieve no leakage of snow, no tide. Sack or other containers filled with seeds should be separated from the ground by more than 50 cm with wooden or brick mats. Indoors should be kept dry and well ventilated. At the same time, artificial ventilation is often required so that the seeds are often in a dry state. Fourth, the good forage seed bags do not use plastic bags and grass seeds, because the plastic bag is airtight, the exhaled carbon dioxide can not be discharged, easily lead to seed carbon dioxide poisoning. In addition, the water produced by the seed itself and the heat generated by the respiration do not spread out, and it is easy to cause fever and mildew in the seeds. Do not use chemical fertilizers in bags. Use grass bags that are well-perfected in paper bags or sacks. 5. Keep the seeds of the good pasture grasses away. Keep the pasture seeds, pesticides, and nitrogen fertilizers together. Because some pesticides have a toxic effect on seeds, not only affect the germination rate of seeds, but also can cause physiological changes in pasture seeds, after planting may appear abnormal. Ammonia vaporized from nitrogen fertilizers has a strong corrosive effect. Focus on three aspects: First, check whether the seeds are damp. The second is to check if the seeds are bitten by insects and rats. The third is to regularly check the seed germination rate and germination potential.