First, the bud to the first time before flowering medication in the spring long-wang, when the spring shoot grows quickly, the bacteria are also the most likely to invade the young shoots. As temperature rises, powdery mildew, root rot and various locusts and acarids begin to move. The diseased shoots should be promptly cut off, and 10% imidacloprid wettable powder spray should be used to prevent and treat pests such as cotton aphid and ticks. The whole garden can be sprayed with a “General Tree Guard†+ Bordeaux mixture to kill overwintering pests and insults.
Second, the flowering period is best not to apple apple flowering period is more sensitive to pesticides, flowering generally can not spray chemical agents, so as not to cause injury. In order to prevent falling flowers and fruit, the production of artificial bees, to improve the pollination rate, and promote results.
Third, after the flowering medication for the flowering period may cause harm to the pests, such as apple powdery mildew, flower rot, mold heart disease, scale insects, mite pests, should take measures after flowering. The use of 80% tebuconazole WP to control all kinds of leaf spot disease, scab, anthrax and other high-level fungal diseases; for scale insects, cockroaches and other pests, 40% omethoate can be used to control.
IV. Spraying before bagging before bagging is a critical period. At this time, it is a period of young fruit defluff, and a large number of wounds are produced after fluff falls off. This brings about invasion of anthrax, ringworm, and other pathogens. Opportunity. Therefore, 1 or 2 days before bagging, the whole garden sprayed fungicide and insecticide again to prevent diseases such as rotten fruit, cotton bollworm, and fleas. Drugs include 70% thiophanate-methyl 800 times, 12% hypertonic extermination net emulsifiable concentrate and so on. Do not use organic phosphorus and Bordeaux mixture to prevent fruit rust.
Fifth, after bagging, after spraying and protecting the leaves, it is necessary to carefully protect the leaves so as to make the fruit large, high quality and colorful. Early defoliation, powdery mildew, red-and-white spiders, aphids, leaf miners, etc. are the enemy of damage to the leaves. Therefore, after spraying the bag, “melon and fruit sedum†+ foliar fertilizer + fungicides + pesticides should be prevented. The threat of pests and diseases, nutritional supplements, and promotion of fruit enlargement.
6, after picking the bag to use drugs Many growers habitually think that after bag removal is not necessary for fruit surface protection, is the most easily overlooked period. After the bag is picked, the fruit is exposed and the fruit grows on the tree for another 20-30 days. The bacteria will invade the wound caused by the slight friction between the branches or the leaves and the fruit, which will cause pests and diseases on the fruit surface. Should seize the time to spray again, "new high-fat film" + insecticide + fungicide + foliar fertilizer, disease prevention and pest control, to reduce the occurrence of bitter pit disease, prevent cracking, protect the fruit color bright.
7. After the fruit is harvested, the clean garden sprays the fruit as the fruit is harvested, the leaves fall off, the fruit trees begin to enter a dormant period, and the pests are also looking for overwintering sites for wintering, which is also the weakest link in their life history. The Qingyuan work cannot be relaxed. For branch diseases such as apple rot disease, bobbin disease, and canker disease, apply the “General Tree Guard†seal to disinfect after removing the lesion. The litter in the orchard will be treated with concentrated litter and fruit drop, and then the whole tree will be sprayed with the “General Tree Guardian†+ lime sulfur mixture to prevent freezing and keep the fruit trees safely in winter.
In short, during the year-round management of fruit trees, each medication period is critical, one of which is not well-controlled, and the next one is very laborious. Therefore, the fruit grower should strengthen all aspects of bagging apple management, improve the commodity quality of the fruit, and buy a good price.
Portable Color Doppler Ultrasound Series
Color Doppler Ultrasound System
-High definition image
-Very thin light and pretty
-15inch LED Screen
-Built-in Battery
-Abundant function Multilingual
Specifications
1. Imaging Modes:
-B, B|B, 4B, B|M, M
-Color Doppler (CFM)
-Power Doppler (PDI)
-Directional Power Doppler (DPDI)
-Pulsed Wave Doppler (PWD)
-B+PWD (Duplex)
-B+CFM/PDI/DPDI+PWD (Triplex)
-High Pulse Repetition Frequency (HPRF)
-Tissue Harmonic Imaging (THI)
2. Scanning Method: electronic linear, electronic convex, electronic micro-convex, scanning depth: 2-24cm
3. Color Doppler:
-PRF variable: 0.5-9 kHz
-Wall filter settings: 3 steps (5%, %10%, 15% PRF)
-Angle steering for linear transducers: ±10°
-Real-time spatial filter: 4 values
-CFM palette>10 maps
-PDI palette>10 maps
-B/Color priority control
-Color threshold control
-CFM baseline control
-Doppler frequency selection
-Color frame averaging
-Transparent Color Mapping (TCM)
4. Pulsed Wave Doppler:
-PRF variable: 1-10 kHz
-Wall filter settings: 16 steps (2.5%-20% PRF)
-Angle steering for linear transducers: ±10°
-Real-time trace line with automatic calculation of spectrum parameters
-Stereo sound: volume control
-PWD palette>10 maps
-Doppler frequency selection
5.Processing:
-High Line Density scan mode for better resolution
-8 sliders TGC Control
-Dynamic range>120 dB
-Overall gain control
-M - mode sweep speed control
-Acoustic power control
-Variable frame averaging
-Brightness, contrast
-Advanced gamma control
-Scan direction, rotation, up-down controls
-Negative / positive control
-Echo enhancement control
-Noise rejection function
-Speckle reduction
6. Image and video: AVI, JPG, BMP, PNG, TIF, DCM (DICOM)
7. General Measurements and Calculations: Distance, Length, Area, Circumference, Volume, Angle, Stenosis %, A/B Ratio, Velocity, Pressure Gradient (PG), Acceleration, Resistivity Index (RI), Heart Rate, Velocity Time Integral (VTI), etc.
8. Measurements and Calculations Software Packages: Obstetrics, Gynecology, Abdominal, Urology, Endocrinology, Vascular, Cardiology, etc.
9. Expansion interfaces:
-VGA, TV Interface
-USB2.0 Interface
-RJ-45 Network interface
-Support DeskJet printer, LaserJet printer, video printer
Portable Color Doppler Ultrasound,Portable Color Ultrasound Machine,Portable Color Ultrasound Equipment,Color Ultrasound Equipment For Clinic
Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com