As we all know, peanuts are grown with a large amount of seed. If the seed is purchased from the market, it will cost too much. Therefore, many farmers use self-retained species when growing peanuts. Peanuts are leguminous crops, self-pollination, and their genetic traits are relatively stable. Although they can be planted year after year, they will be degraded by successive years of self-use and lead to reduced yields. Therefore, farmer friends must master scientific methods when they keep their own peanuts. I. Scientific selection Practice has proved that the selection of summer peanuts has good seed quality, because summer peanuts grow in an ups and downs environment, have fewer pests and diseases than spring peanuts, have high seed setting rate, and have less ripe fruit and low oil content. And at the time of harvest, the weather was clear, the temperature was moderate, and the rain was less, which facilitated the drying of seeds and the seeds had a high germination rate. In addition, the storage time is shorter and the probability of illness is small. Select pest-free, robust plant growth, number of branches, moderate height, fruit multi-saturation, double fruit, uniform size of the individual. The peanuts of the selected good plants will be individually dried after being harvested, stored separately, and planted separately in the second year. In the second year of harvesting, the seed selection work of the previous year was repeated, so after 2-3 years of continuous seed selection, the already degraded varieties could play a role of purification and rejuvenation; for newly introduced new varieties, it would prevent them from being planted. Sexual degradation. It should be noted that late-maturing plants are not suitable for planting, and prematurely debilitated plants are not suitable for planting, and diseased plants are not suitable for planting. The seeds of plants with root-knot nematode disease, leaf spot disease, and rust disease not only spread the disease when used as seed, but also grow weaker. Second, timely harvest Early harvesting of peanuts, lack of full pods, multiple pods, low seeding rate, late harvesting, fruit rot and mildew, full fruit flaking, easy grain loss at harvest, laborious harvests, increased rotting grains, and yield and quality decline. Especially early maturing varieties, due to short dormancy period, when the soil moisture and temperature are suitable, it will also cause a large number of germination losses. Especially for the kind of peanut, it should be harvested in time. Under normal conditions, the plants showed a state of aging, ie, the top stopped growing, the upper leaves became yellow, the base and middle leaves fell off, the stems became yellow and irregular dark spots appeared, most of the pods had obvious reticulations. The inner sponge layer shrinks and has a dark brown luster. The grain is full, and the skin and seed coat basically present inherent colors. At this time, most of the pods are full, which is the best time for peanut harvest. Summer live peanuts should be harvested timely and early harvest, it is best dried in storage before the frost, harvest too late, peanuts in the ground or during fruit drying, there will be the risk of frost damage, affecting the quality of peanut pods. After the peanuts are harvested in rainy weather, these peanuts are not suitable for seed use. Third, safe storage Newly harvested peanuts generally have a moisture content of 45% to 50%. To ensure safe storage and ensure the quality of peanut seeds, the peanut plants bearing pods should be planted in the field for 2-3 days after harvest to promote post-harvest and Let it dry, then pick it up and dry it flat. When the fruit is sun-dried, the mouth bites brittle, the hand is audible, and the shell peels easily, the water content is generally below 10% for the whole fruit, and below 8% for the seed, Library storage. Seeds of preserved seeds should be stored at a temperature of less than 20°C and a relative humidity of less than 75%. Seeds dehusked should be stored at 5°C to 10°C and relative humidity of 40% to 50%. Since peanut seeds contain a large amount of hydrophilic substances such as proteins and carbohydrates, it is easy to absorb the moisture in the air during the storage process, so that the respiration is enhanced, nutrients are consumed, a large amount of heat is released, and the temperature of seed piles rises. Heat moldy spoilage. Therefore, peanut seeds must be kept dry and ventilated during storage. When the moisture content of the seeds exceeds the safety limit or the temperature of the seed piles rises, they should be promptly turned upside down and aired. Fourth, seed screening Before shelling, the peanuts were compared with their standard fruit shape from the aspects of reticulation, capsule size, inner seed coat color, and bending degree of the capsule, and the degree of the tip of the fruit tip, removing the diseased fruits (fungus), capsules, and ruptured shells. Fruits, single pome fruits, and fruits with large differences will be filled with white and disease-free fruits. Choose sunny noon and continue to dry in the mud for 3-4 days. Do not crush the peel during drying. About 10 days before planting, the shell was peeled. The earlier the shelling time, the higher the probability of infecting the pathogens and the worse the activity of various enzyme enzymes, the lower the germination rate and germination potential. After shelling, the seeds should be selected again, and the seeds should be classified according to the size and size of the seeds. The diseased grains, residual grains, and deformed grains should be removed and seeded with the first-grade seeds. Vinegar,White Rice Vinegar,White Vinegar,Millet Vinegar Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com