After harvesting, the wheat is in a hot and humid climate. Even if it is fully dried, if it is not properly managed after storage, it will be easy to absorb moisture, resurgence, insects, fever, mildew, and storage is difficult. Therefore, Huinong.com compiled a new wheat seed storage method for reference by the grain farmers.
First, wheat seed storage characteristics
1. Wheat seeds have a long maturity period. During the post-ripening process, the breathing is vigorous, and the phenomenon of “sweating†is easy to occur, so that the upper layer of the seed pile absorbs moisture and regains moisture, causing fever and mildew.
2. Wheat seeds have strong heat resistance and are sealed at high temperature, which can not only control pests, but also maintain seed viability for a certain period of time. Through the maturity of the wheat, the heat resistance is reduced.
3. Wheat seeds have strong hygroscopicity, are prone to insects, have thin seed coats, soft tissues, contain a large amount of hydrophilic substances, and are highly hygroscopic and infected with worms.
The respiration intensity of wheat seeds is relatively high. As the water content of seeds increases, the respiration intensity of seeds increases. In wheat, the respiration intensity of wheat increases rapidly.
Second, wheat seed storage method
Store wheat seeds in a dry, moisture-proof storage. After entering the warehouse, the wheat seeds should be tightly sealed to prevent moisture and moisture, and the heat, mildew and insect prevention work should be done well.
Storage of wheat seeds, the water content is below 12%, and the seed temperature is not more than 25 °C. Households usually use containers such as cabinets, urns, and pottery jars. The national seed warehouse uses scattered and bagged methods.
1. Pottery jar and pottery tank storage is a simple and effective method of seed storage.
Specific storage methods: first select the pottery and pottery jars that do not leave acid and alkali, pesticides and fertilizers, wash and dry, place them in a high dry place, pour the dried seeds into the tank and the altar, covered with sun-dried The straw ash is 15 cm thick and then sealed with a plastic film.
During the period of seed storage, during heavy rain and mildew rain, it is necessary to check in time and find problems in time. Generally, the seeds that are dried in the sun (a bite is broken into two sections) are put into the tank, and there is no need to turn the sun from harvesting to sowing.
However, the seeds entering the tank or entering the altar are not dry enough to be worms or flooded, the plastic film ruptures and leaks, or the storage period needs to be extended. The sun should be turned over, the worms should be sunburned, and the water should be lowered to ensure safety.
The glazed pottery jar and pottery jar have moisture-proof properties, and the texture is hard and can prevent rodents. The grass ash has a certain hygroscopic property after being dried, and it can prevent insects and rats from being covered on the seeds. The plastic film on the mouth can be waterproof and moisture infiltrated, which can prevent the seeds from absorbing moisture and regain moisture, and keep the seeds dry for two or three years.
2. Storage method of wheat seeds created by hot-storage storage and utilizing the characteristics of heat resistance of wheat. This method is well mastered and can achieve the effect of high temperature insecticide without losing the seed germination rate.
Specific practice: choose sunny weather, expose the wheat to a temperature of 46 ° C or more and not more than 52 ° C, then quickly enter the warehouse, seal insulation, close the doors and windows.
Pay attention to:
1 Master the dormancy characteristics of wheat seeds. Generally, seeds that have not passed the dormant period have high heat resistance and can be stored in a hot warehouse.
2 The moisture content of the wheat in the hot-storage bin should be in the range of 10.5-11.5%.
3 Do a good job of sealing and keeping warm, keep the seed temperature above 44-47 °C during heat treatment, and keep it for 7-10 days; but the high temperature treatment time should not be too long, and should be cooled and cooled in time to achieve the seed viability and kill. The effect of the worm.
3, the number of wheat is small or for the promotion of the fine varieties ready to be transferred to other places to use packaging is appropriate. If the water reaches below the safety standard, the non-glyph or semi-non-type solid pile method is adopted, and the stacking bag number can generally reach 10-12 bags.
If the wheat has higher moisture content and is worth the autumn and winter cooling season, ventilation or wind-cooled piles should be used to keep large gaps between the sacks, which is convenient for ventilation, temperature and humidity. Commonly used storage methods include “money hole†shape and “well shape†shape, and the stacking height should be low, which is generally suitable for temporary short-term preservation.
There are many kinds of raw materials and different properties of cosmetics. According to the properties and uses of raw materials, cosmetics can be generally divided into two categories: substrate raw materials and auxiliary raw materials.
The former is a kind of main raw material of cosmetics, which occupies a large proportion in the formula of cosmetics, and is the substance that plays the main function in cosmetics. The latter are responsible for forming, stabilizing or giving color, fragrance and other properties of cosmetics, which are used in small amounts in cosmetic formulations but are extremely important. Cosmetics are chemical mixtures made from natural, synthetic or extracted substances with different functions, which are processed by heating, stirring and emulsifying.
Cosmetic Ingredients ,Sodium Hyaluronate Powder,Kojic Acid Dipalmitate,Ursolic Acid Powder
Xi'an Double H Health Technology Co., Ltd , https://www.dhextract.com