The wintering of eggplants in greenhouses results in initial low-temperature and low-light periods, which are prone to various physiological disorders. The causes and corresponding prevention measures are summarized as follows:
1. Yellow leaves of young leaves: fresh yellowish-white leaves with green leaves on the tip, rust-colored stripe spots on the lower middle leaves; multiple fertilizers, high humidity, excess soil acidity or excess manganese, inhibition of ferritin absorption, etc. Easy to cause new yellow leaves. Spray ferrous sulfate 500 times on the surface of the leaf; apply magnesium hydroxide and lime in the field to adjust the pH of the soil; supplement potassium to balance nutrition and meet or promote ferritic supply.
2, buds are not open: ovary does not inflate, flower buds are not open, affect the pollination fertilization made from a stalemate. In the cold season, the fields are short of water and the air is humid. The pH of the soil is above 7.5. The effectiveness of boron in the soil is reduced. Excessive lime and calcium in the field may induce plant lack of boron, which can cause buds to remain open for a long time. Spray borax 700 times or amino acid polypeptide pollinator on leaf surface.
3. Fruit cracking: The fruit is stiff but not inflated, the sponge tissue is tight, the skin color is dull, there are white stripes, and after watering, it becomes cracked fruit and it grows little. Low-temperature, low-light, high-temperature, and high-light periods coincide with fruit enlargement and increase the absorption of nitrogen, potassium, and boron, and the relative requirement of phosphorus is relatively small. If the input amount of phosphorus is too large, the absorption of potassium and boron will be affected, making the fruit more fleshy. Less and rigid. Phosphate fertilizer is mainly applied under the seedling roots during planting, and 2-3 kilograms of pure phosphorus fertilizer is applied per acre at a later stage; potassium fertilizer is mainly applied during the result period.
4. Fallen fruit from fallen leaves: The leaves of the lower part of the leaves fall off during the low temperature period, and the fruit of the high-humidity period softens from falling. When the temperature is too low, nitrogen and phosphorus fertilizers are applied excessively to make the soil concentration large, and the plants will be aged due to long-term nutrient imbalance, which is the sequelae of the reduction of gibberellin production caused by zinc deficiency. The petiole and culm, stalk, and fruit junctions were separated and fell off due to lack of auxin. Aged eucalyptus leaf surface sprayed with zinc sulfate 700 times, or 1 kg per gram of zinc sulfate applied, can also be sprayed on the surface of the green waves and other zinc-containing nutrients to prevent long-term growth.
Specifications
14.Battery charge: by USB charge or wireless charge, take 2 hours
Advantage
How it works
1. Scan mode: array probe, 4D scan;
2. Supporting system: Apple iOS;
3. Measuring range: 10ml ~ 2000ml;
4. Automatic measurement inaccuracies: <5%;
5. Scan and process<2 seconds;
6. Scanned image display frame: 10 frames / seconds;
7. Case Storage: by tablet or mobile phone;
8. Printing: external wireless thermal printer;
9. Battery: Built-in battery, charge one time can work on more than 200 patients;
10. Power: Wireless charge or by USB cable charge;
11. Dimension: 180mm (length) × 60mm (width) × 60mm (thickness);
12. Weight: 420g.
13.Battery working time: 3 hours(according to whether keep scan)
- Only one probe, convenient for carry
- Wireless, convenient for operation
- 4D array scan, very clear image
- High accurate (5% inaccuracies)
- High speed on scan and process (2s)
- Without distortion of mechanical scanning
- More advanced algorithm, more powerful bladder wall recognition technology(High recognition
rate for the bladder wall with air), more accurate contour technology, higher accuracy of
the probe makes scanning results more accurate.
- New algorithm, the measurement results are not subject to the bladder shape and size.
No need to select Gender, Age group and no need to consider special cases such as the effect
of hysterectomy on the measurement results. Good compatibility for different bladders, no
Ubstantial error when measuring small volume or special shape bladders, easier to operate
and use.
- High precision rotary encoder, precise positioning, never need to calibration.
- Waterproof probe
The Sonostar wireless probe is a mini ultrasound scanner without a screen. We minimize the components of a traditional ultrasound into a small circuit board built into the probe, and showing image in smart phone/tablet through Wifi transferring. image can both show in screen and tablet.Image transferring through internal wifi from probe, no need external Wifi signal.
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Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com