Maize seedling management
Maize seedling management, mainly seedling fill seedlings, seedlings Dingmiao. After the emergence of corn seedlings to timely check seedlings, mainly to prevent seedlings crowding each other, competing for light and fertilizer, waste of nutrients and water, usually when the corn grows to 3-4 leaves must be divided between the seedlings, the seedlings should be closely preserved, Stay small and stay large. Inseminated plants stay strong. Basically, when the number of leaves is 4-5 leaves, the whole field will be set. If you want to make up the seedlings, generally take two methods, one is to make up the seedlings, it must be sowed after soaking and germination; the second is transplanting seedlings and planting (transplanted seedlings are generally required in the 3 leaf period, if the transplanted seedlings are too large, The survival rate is low). After transplanting, the rooting water should be poured. In general, no matter whether it is seeding or transplanting, it must be completed before the 3 leaf stage, and after applying the seedlings, apply the water fertilizer 1-2 times.
Freeze-drying powder process includes: fresh fruit selection - cleaning - cutting - blanching - cooling - drying - grinding beating - gel grinding - sterilization - pre-freezing - vacuum freeze-drying - ultra-fine grinding - weighing packaging - testing - finished product.
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Firstly, fresh and mature fruits with good quality were selected in the pre-treatment area of the food lyophilizer, and the leaves were removed to remove impurities. Then, preliminary cleaning and simultaneous sterilization of fruit surface were carried out. After sterilization, the fruits were cleaned and drained again. After the drain, the fruit is sliced and treated by blanching process. After the color preservation, the fruit is treated by pulping, and then pasteurized. The pretreatment process is finished before lyophilization.
The processing core of freeze-drying powder is the equipment area of food freeze-drying machine. After pre-treatment, the fruit enters the equipment of food freeze-drying machine and crystallizes into a solid state at low temperature, and then sublimates and dries in a vacuum environment to obtain freeze-drying products with little water content. Freeze-dried products out of the warehouse into the food freeze-dried post-processing area, ultrafine grinding, and then according to the need to do weighing packaging, after testing the finished products packed into storage.
