1. Control moisture seeds must be dried before they are packaged and moisture is reduced below safe moisture. Rice and maize varieties should be controlled below 13%, while seeds with higher oil content, such as oilseed rape, peanuts, sesame seeds, cotton, etc., must be reduced to 8% to 10%. The author chose the Shandan No. 4 produced that year. 13%, 14%, 15%, and 16% of corn seeds with 4 different water contents were 5 kg each, and then stored in the room at room temperature. The first germination test was performed at the time of storage, the second test was performed 180 days later, and the third test was performed 365 days later. If the seed moisture content is below 13%, the seed oxygen is weak, limiting the activation of the seed enzyme, so that the seed is in normal dormancy. When the moisture content of the seeds exceeds 14%, the oxygen absorption of the seeds is enhanced, and the respiration intensity of the seeds also increases as the moisture content of the seeds increases. In the packaging bag, it will cause anaerobic metabolism, which will cause a large amount of harmful gas inside the bag, causing the embryo to suffocate and die. 2. There are some differences in the seeds that have been newly acquired. The strict selection and grading of the seeds should be carried out before packing. The empty grains, the destruction grains, the insect grains and various impurities should be excluded. When the standards are basically the same, they are mixed and mixed. Otherwise, the quality of seeds will be affected. For example, if the seed with low purity is mixed in the seed pile with high purity, it will not only reduce the use value of the latter in production, but also It will affect the stability of the seeds during storage. Seeds with low purity tend to absorb moisture and cause moisture transfer in the seed heap, causing the seed to lose its usefulness. 3. Packaging requirements First, different crops, different varieties can not be packaged; Second, the moisture can not be packaged when the standard is exceeded; Third, there is insect seed can not be packaged; Fourth, the purity can not meet the standard seeds can not be packaged; Fifth, the new, Chen seeds should be separately packaged. 4. After properly stacking the packaging into the warehouse, the stacking should be 50 cm from the wall and 60 cm apart from the malleolus. The stack height and width depend on the degree of seed drying. Seeds with higher moisture content should be lower and narrower to facilitate ventilation. Dry seeds can be higher and wider. The stacking direction should be parallel to the doors and windows, which is conducive to air circulation. Small packaged seeds should be protected against insects, mold, and rodents.
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