Storage of wheat seeds pay attention to five points
There are two kinds of wheat seed storage methods: bulk storage and storage. Regardless of the type of storage, the following points must be observed during storage:
The moisture content of the seed should be appropriate
Water is the main factor affecting the safe storage of wheat seeds. The high water content is liable to cause vigorous breathing and mold reproduction, affecting the germination rate. The safe moisture content of wheat seeds is 12.5% ​​and cannot exceed 13%. Below 12%, the viability can be maintained for a longer period of time. Wheat has strong hygroscopicity. It should be checked during the summer and it should be checked once a month. In the event of high temperatures and rainy days, or poor storage conditions, inspections should be increased.
Seed temperature should be appropriate
Under normal circumstances, the moisture content of wheat seeds is below 13%, and the seed temperature is about 25°C, which can be safely stored. If the seed temperature rises quickly and exceeds the temperature at that time, it means that the seed is producing heat and cooling measures should be taken promptly.
Warehouse should be properly closed
Ventilation is mainly to disperse moisture and cooling in the warehouse; the purpose of confining is to support the influence of bad weather such as moisture or high temperature on the seeds. In summer, when the temperature is higher than the storage temperature and the seed temperature, it is better to be closed; when the temperature is lower than the storage temperature and the seed temperature, ventilation is better.
Pay attention to pest control
The pests mainly include wheat moths, rice elephants, Otani pilgrimages and whiteflies. The inspection method is to take a certain number of seeds and put them on a white paper to inspect them with insects, then analyze the number of live insects and species, and then decide on the control measures. The wheat moth is good for flying, and it can be generally checked by the Sami wheat moth method. In the summer, it is usually checked about 10 days. The control method is generally used for fumigation with high concentrations of dichlorvos, ie, the old sack covers the surface of the seed. 80% of the dichlorvos emulsion is sprayed at a volume of 100-200 ml per cubic meter of space. In addition, fumigation with aluminum phosphide before seed storage, the amount of 1.5 grams per square meter, sealed 36-72 hours after smoking, and then ventilated and scattered poison. The rodent control rodents are mainly rodent poisonous baits and are regularly replaced.
On time test germination rate
The germination rate of wheat seeds directly affects the use value of seeds. During storage, the germination test should be performed at least once a month, and an observation and record of the germination potential should be added before the warehouse is released. If it fails to meet the standard, it cannot be planted and sold.
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