Second, avoid water application of ammonium bicarbonate. Ammonium carbonate is extremely unstable and volatile. Therefore, in the application of ammonium bicarbonate in fruit trees, whether as a basal fertilizer or top dressing, should be applied in the case of wet orchard, immediately after application. If the soil is particularly dry, it may be better to apply ammonium bicarbonate after watering.
Third, avoid repeated application of ammonium sulfate. In orchards from acidic soils to slightly alkaline soils, if ammonium sulfate is used continuously, the acidity of the soil will increase, which will cause soil compaction and affect the root activity, which will lead to poor growth of fruit trees, leading to a serious decline in yield and quality.
Fourth, avoid applying water after urea. The nitrogen contained in urea can only be absorbed and used by the roots of fruit trees after being transformed into ammonium carbonate under the action of soil microorganisms. If water is applied immediately after urea is applied, nitrogen can be easily lost. Therefore, whether urea is used as base fertilizer or as top dressing, it should be watered for 5-7 days after application to avoid loss.
1.ZF series of reflective shadowless lamp is widely used in various occasions operation lighting needs, is the ideal lighting equipment of modern operation room.
2. Full close streamline lamp body design completely meets the demand of the sterilization and high standard of laminar flow purification in operation room.
3. Adopting more than 5280 slices of reflection mirror, guaranteeing 1200 mm lighting depth.
4. Special design of color temperature compensation provides closer to that of natural sunlight and helps the doctor to distribute operation parts clearly and accurately.
5. The back-up battery will start work within 0.2 seconds automatically in case the main battery is damaged,ensuring the continuation of surgical operation. There`s failure indication in the handle control panel, to recommend the bulb to be changed after operation.
6. detachable handle jacket ,can be used for high temperature (≤134℃)sterilized.
7. Digital-control circuit offers many functions, with 10 segment brightness selection stepless lighting regulation, brightness memory, low voltage
start-up and power on self test etc.
8. The life-span of OSRAM halogen bulb is up to 1500 hours; the bulbs can be changed easily.
9. Germany ORSAM lamp socket,thermostability
10.Balance arm can be optional Germany imported or domestic.
11. mould Die-casting Eight edge type Revolving arm
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