Disease control technology of melon vegetables

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Common melon vegetables are cucumber, melon, pumpkin, bitter gourd and so on. Diseases are caused by fungi, bacteria, and viruses.

I. Powdery mildew prevention and control technology

1. Choose disease resistant varieties;

2. Scientific cultivation and management;

3, chemical control, in the early onset of 62.25% Xiansheng 1:600 ​​times spray 2-3 times or 12.5% ​​Lek 40 grams / acre, Duishui 50-60 kg spray 2 times. Safety interval 10-15 days.

Second, downy mildew prevention technology

1. Choose disease resistant varieties;

2. Spray 0.1% urea + 0.3% potassium dihydrogen phosphate in the later stage of growth to increase disease resistance;

3. Strengthen field management;

4. Chemical control, using 58% formic acid Mn-Zn, 1:500 times or 1:400 times antivirus, prevent 2-3 times in the early stage of disease. Safety interval 10-15 days.

Third, the prevention and treatment of bacterial leaf spot disease

1. Choose disease resistant varieties;

2. Implement rotation;

3, chemical control, the disease early disease leaves removed, and with 50% a cream of copper 1:500 times or 72% of agricultural streptomycin 1:4000 times, 50% can kill 1:500 times, spray 2-3 times. Safety interval 10-15 days.

Fourth, the prevention and treatment of mosaic disease

1. Choose disease resistant varieties;

2, scientific cultivation and management, nurturing strong seedlings;

3, timely control of locusts;

4. Chemical control: In the early stage of disease, we use Ningnanmycin 1:500 times or 1.5% to control the disease and disease 1:1000 times to prevent spraying 3-4 times. The safety interval is 10 days.

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nstrument Imaging mode: 1-2-3D real time display Locating system: Three dimensional motor platform Scanning mode: 2Dgalvanometric scanning system Lateral resolution: 3.8 um Axial resolution: 4I um Image depth: 0-2 mm Speed: 1-50 frame/s


Instrument

Imaging mode: 1-2-3D, real time display

Locating system: Three dimensional motor platform

Scanning mode: 2Dgalvanometric scanning system

Lateral resolution: 3.8 um

Axial resolution: 4I um

Image depth: 0-2 mm

Speed: 1-50 frame/s



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Port wine stains ( PWS ) is always a birthmark . It is caused by a vascular anomaly. PA imaging could provide real-time information about the thickness of the skin and diameter. depth, distribution of blood vessel , which provide significant help with clinical diagnosis and treatment.


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Image depth : PA 2 mm

OCT 0.4 mm

Functional identification : With optical fingerprint characteristics ,P A could specificity imaging blood vessels , eliminates the interference of hair follicle, sebaceous glands.




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