The maximum nutrient efficiency of corn: the maximum efficiency of corn during the big bellmouth period. This is the period when corn nutrient absorption is fastest. During this period, the absolute quantity and relative quantity of nutrients required by maize were the largest, the absorption rate was the fastest, and the effect of fertilizer was the greatest. At this time, the fertilizer application amount was appropriate, and the effect of increasing maize yield was most obvious. Top two-thirds of nitrogen fertilizer is used as top dressing. Top dressing is divided into four fertilizers: seedling fertilizer, stalk fertilizer, panicle fertilizer and grain fertilizer, and the following two periods are the focus:
Stalk manure: topdressing within 10 days after jointing has the effect of promoting stem growth and promoting young panicle differentiation. One third of the top nitrogen fertilizer is used as a jointing fertilizer, and the distance between the fertilizer and the seedling is 5 cm to 7 cm.
Pan-fertilizer: The remaining nitrogen fertilizer is applied in the big bell-mouth period 10 days before the day of corn tasseling, and it can promote large panicles and grains, and it also has good effect on grain filling in the later period.
It can prevent some medicine or blood from splashing on the face, thus protecting the eyes. This kind of glasses is generally used in conjunction with masks and surgical caps to fully protect the doctor's head.
[Functions of medical eye masks]
1. Prevent blood, potion and other liquids that cause damage to the skin from causing unpredictable damage to the eyes.
2. It can prevent the impact of objects on the eyes during close surgery.
3. The inner space of the eye mask is large enough for doctors who wear myopia glasses.
4. The breathability must be good, generally there are vents
Protective goggles,disposable medical equipment,personal protection,daily protection
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