Summer and summer storage of wheat and corn seeds
Wheat: The seeds of wheat are not as pleasing to the sun, so they should be stored in ventilated shades when stored in volts. The law of change is to sweat first and then grow white spots, and finally become black and cannot be used as seeds. Storage technology. Wheat seeds are easier to store, but they should be intensified during summers. Wheat has strong hygroscopicity, thin grain and loose tissue. Generally, red and hard wheat have poor hygroscopicity compared with white and soft wheat. Therefore, seeds with a safe moisture content below 12% can maintain seed viability for a longer period of time. Wheat seeds can be stored in bulk and stored in bags. When the bulk storage is performed, it is stored in a low-temperature sealed lid. When the bag is stored, the moisture content of the seed is reduced to a level below the safe moisture content. A screening must be performed before entering the warehouse in summer or autumn. After the beginning of autumn, the storage is performed once to ensure the seed quality. Maize: Maize is a large-grained, large-embryo seed that is prone to fever. The embryo occupies more than 30% of the volume and accounts for 10% to 12% of the grain weight. Because the large seeds of the embryonic embryos thrive, they are under the same conditions of moisture and temperature. Other cereal grains have a high respiration rate and cause the seeds to deteriorate due to the heat. In addition, corn seed embryos also contain more soluble sugar, and the seed coat is thin, so it is easy to cause mildew and cause seed deterioration. The law of change is that the seeds of the first step after the moisture absorption of corn seeds are swollen, the color is bright, and the embryonic part forms blisters, but it is generally not easy to see. The second step of sweating and sweating, the embryos hang ash hyphae, there is soil. The third step is to smell the smell of alcohol. If the climate is not normal, the fever will begin after three or four days. The embryo becomes pale yellow and the hyphae hanging on the embryo are green, which has affected the value of planting. After treatment, the embryo becomes green or black after three or four days, and the entire seed becomes black and loses its use value. Storage technology. According to the nature and variation of corn seed, its storage method usually adopts the ear storage method and the grain storage method. However, the ear storage method occupies a large volume and has a low utilization rate of warehousing capacity. Therefore, grain storage is often used for storage in summers. Generally, when the temperature is between 15°C and 25°C, the water content needs to be below 14%. According to the test, the water content of corn seed is reduced to 12.5%, and the viability of seeds stored for 0.5 to 1.5 years can reach more than 99%, and the germination rate can reach 97% to 98%. The most effective measure to reduce seed moisture is ventilation. Check it regularly to ensure that the seeds are in good condition. The three temperatures are temperature, storage temperature, and seed temperature. In general, the main factor affecting the change of seed temperature is the storage temperature, and the temperature that affects the change of storage temperature is again. When the temperature is low and the seed temperature is high, the exhaust fan can be started in the early morning to cause the negative pressure in the chamber. Cold air enters the seed heap from the vent to cool the seed, and the moisture content of the seed can be lowered. Two wet that is wet and wet. The humidity in the bin is closely related to the moisture content of the seed. Under certain temperature conditions, the moisture absorption and dispersion of the seed depend on the relative humidity in the bin. The wet conditions are also affected by the wetness. Therefore, according to the law of change of temperature and humidity, rational ventilation or closed storage, maintaining a low temperature and humidity, so that the seeds can be in a low temperature, dry environment can extend the life of the seed. Pest control, rat-proof. Insect pest control is the major problem of seed storage in the summer. The main insects that damage the seeds are rice-eclipse, Dagu thief, small grain plunder, wheat moth, and whiteflies. Most of the worms prefer to grow and reproduce in warm and humid places. Therefore, it is possible to control the larvae by reducing the temperature and humidity in the shack. occur. Most of the houseworms have a habit of preferring to act on the top surface. According to this feature, spot checks can be set on the seed surface. When the seeds are infested with worms, they should be fumigated according to the type and severity of the worms, and they can also be baited by poison baits. That is, the fried wheat bran is sprayed with 5% of dichlorvos or 10% of trichlorfon and dried. , placed on the seed surface and around the regular activities of the insects, can effectively kill pests. In addition, fumigation with aluminum phosphide before seed storage, the amount of 1.5 grams / square meter, sealed after smoking for 36 to 72 hours, and then ventilated toxic, but also can play a role in the prevention of pests. To prevent rats, rats can be put on rodents to ensure that the seeds are not damaged. β-Nicotinamide Ribose Monophosphate,EC No. 214-136-5,Pure NMN Power In Emulsion Yuyao Leifsben Health Technology Co., Ltd. , https://www.yuyaolifespan.com