Scientific management of potato early maturing and high yield
In recent years, the Jixi City Institute of Agricultural Sciences selected a variety of extremely early potato varieties suitable for cultivation in the region from a variety of potato varieties, and cooperated with early-maturing and high-yielding techniques such as accelerating shoots, planting seedlings, mulching, mulching, mulching, irrigation, and irrigation. In the second and third accumulated temperature zones in Heilongjiang Province, it has been cultivated twice a year. After harvesting the potatoes, the land can be double crops such as autumn cabbage, autumn radish, and late oil beans. It can also be transplanted into late watermelon, late green pepper, late eggplant, and autumn. Cabbage is also an ideal intercropping crop for large double crops such as corn and watermelon.
Variety selection: Select very early potato varieties harvested within 60 days after emergence.
Warm seeds, cuts, germination, and drying buds: Pick disease-free seed potatoes and lay them in a room at about 20°C, warming and germinating them for 7 to 8 days. After germination, the buds are cut into pieces, each of which is about 25 grams. After cutting, the seeds are planted with a small amount of plant ash. After 2 to 3 days, the seeds are placed in a shed at a temperature of about 20°C, a layer of moist fine soil, each layer is 6 to 8 cm thick, and 2 to 3 layers are stacked. The top layer is fine soil and the overlying mulching occurs. . When the bud grows to 1 to 1.5 cm, the buds are sprouted and the buds are thickened and softened to facilitate planting.
Fertilization, site preparation and deduction: When farmland is layered, 45 to 75 tons of manure, 300 kg of diammonium phosphate, 225 kg of urea, and 225 kg of potassium sulfate are applied per hectare. . Use a rake to pry the sloping blocks of the ridge into the ditch so that the ridges become shorter, so as to facilitate the removal of the film and cover the soil.
Planting: Drilling on the mulch at a spacing of 20 to 25 centimeters, 10 to 12 centimeters deep, planting a block, irrigating the water, and covering the soil.
Field management: When the seedlings arch the top film of the soil, the seedlings shall be placed, and the soil shall be sealed at the mouth of the film; unemerged pods shall be opened every 2 days to allow the seedlings to cool with the outside to prevent burning of seedlings. When a small amount of plants in the field are budded and uncovered, the grass is manually taken and the soil is soiled. The shovel is not available at this time so as to avoid scooping out the small tubers. The leaves were sprayed with potato expander and foliar fertilizer, and water was poured. After 1 week, water was poured again.
Harvesting: When the leaves at the bottom of the plants turn yellow, they can be listed and graded according to the market conditions, market supply and demand and prices.
C200 Trolley Color Doppler Ultrasound System
Feature:
·High definition clear image
·15inch touch Screen LED Screen
·Built-in Battery
·3D/4D imaging(option)
·Support phased array probe(option)
·Abundant functions, Multilingual
·Hardisk, USB storage
·Generous and exquisite appearance
Specifications:
1. Imaging Modes:
lB, B|B, 4B, B|M, M
lColor Doppler (CFM)
lPower Doppler (PDI)
lDirectional Power Doppler (DPDI)
lPulsed Wave Doppler (PWD)
lB+PWD (Duplex)
lB+CFM/PDI/DPDI+PWD (Triplex)
lHigh Pulse Repetition Frequency (HPRF)
lTissue Harmonic Imaging (THI)
SS-100 Touch Screen Trolley Ultrasound Diagnosis B Scanner
Feature:
-Full digital imaging technology
-Crystal-clear Image
-Computer platforms, Abundant functions
-Powerful image and report management
-3D Image Function(optional)
-DICOM display and transfer
-250G large Storage volume
-Broadband Multi-frequency probes
-Compatible with USB laser/inkjet printers
-Pretty and new appearance
-15 inch touch screen color LCD monitor
-Silica gel backlight waterproof keyboard
-8 segment TGC, 16 step zoom
-Complete application software packages
-Can work with external battery(option)
-2 probe connector
-Can be fold, the transportation is convenient and lower freight
-Multiple language: English, French, German, Spanish, Russian, Italian, Portuguese, etc.
Specification:
-D-Maximum Scanning Depth: max.250mm
-Multi-frequency: 5 segment frequencies
-Zoom: 10 ratio, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0
-Image gray scale: 256 level gray scale
-Cine Loop: max.1024 frames
-Scanning mode: B, 2B, B/M, M, 4B, 9B, ZOOM;
Real-time Zoom on B mode
-Image processing: Pre-processing, after-processing, dynamic range, frame rate, line average, edge;
enhancement, Black/White inversion; Gray scale adjustment, contrast, brightness, γ revision.
-Gain: gain: adjustable between 0-100dB;
Time gain control(TGC): 8 segment adjustment, B, M adjustment separately.
-Monitor: 15 inch touch screen color LCD monitor
-Supported output apparatus: U-Disk, Laser/ink printer, video printer, VGA
-Measurement and calculation(human):
B mode: distance, circumstance, area, volume, angle, ratio, stenosis, profile, histogram;
M mode: heart rate, time, distance, slope and stenosis;
Gynecology measurement: Uterus, cervix, endometrium, L/R ovary;
Obstetric: gestation age, fetal weight, AFI;
Cardiology: LV, LV function, LVPW, RVAWT;
Urology: transition zone volume, bladder volume, RUV, prostate, kidney;
Small parts: optic, thyroid, jaw and face.
-Measurement and calculation(veterinary):
Cattle: BPD, CRL, TD; Horse: GA; Dog: GS; Cat: HD, BD;
Sheep: BPD, CRL, TD
-Image store: by 250G hardisk or USB disk
-Print: by USB laser/inkjet printers
-DICOM3.0, medical digital imaging and communication
-Probe Connector: 2
-Weight: Around 28kg
Trolley Ultrasound Scanner,Trolley Type Ultrasound Machine,Color Doppler Ultrasound Trolly,B-Ultrasound Scanner Trolley
Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com