Autumn is the season when many kinds of pasture seeds mature. In order to not only affect the pasture yield, but also ensure the quality of the seeds, we should grasp the following aspects: 1. The shell (or appearance) of the timely-harvesting seeds becomes darker and dark brown in color. The seeds are full, tough and shiny, which means they are mature seeds and can be harvested in a sunny and timely manner. If harvesting is too early, the seed is thin and the germination rate is low. When the harvest is too late, the seed nutrient is consumed more, the seed is easy to fall off, and it is easy to germinate on the ear during the rainy day, which affects its yield and quality. 2. The seeds of some pastures are harvested in batches, such as pine cone herb, grain millet, etc. The spikes are large and numerous. Usually the flowers are ripe at the ripening edge, and the harvesting should be based on the cooked crabs. The flower buds. When scissors are used for harvesting, do not cut or fold them by hand so as not to damage the upper and adjacent young shoots, buds and stems and leaves. 3. Post-harvest treatment of the harvested seeds or tubers should be promptly removed by shelling and drying. Tubers should be stored in a cool place, not exposed to moisture, frost, and water. 4. Store the dried seeds in cans, buckets or plastic bags, remove the air, seal them with wax, store them in a cool place, reduce the incidence of pests and rodents, and ensure good germination rates in the second year. Tubers can also be buried in soil and kiln.