First, in the return period. Poor seedlings in poorly-fertilized wheat fields and high-yield wheat fields, especially defertilized weak seedlings without winter fertilizer, should be topped with green manure.
Second, in the period of getting up. For the low-yield wheat fields and high-yield wheat fields, late-seeping and weak-seedlings, de-fertilized and weak-seedlings, and old and weak-seedlings, in the absence of fertilizer-promoting measures to promote long-term growth or insufficient promotion, it is necessary to re-fertilize as early as possible, and to pour water. For the seedlings of finely seeded high-yield wheat fields, based on the control of returning green crops, the main period should be the fertilizer and water main attack period.
Third, in the jointing period. For strong seedlings and lean seedlings in high-yielding wheat fields for precision seeding, the strong seedlings planted by general cultivation methods and the late buckwheat seedlings cultivated using the stern cultivation method should be timely watered and replanted with jointing fertilizer at the dial stage. Http://
Double Head Ultrasound Series
pecification
-Probe Type: Consist by two of Convex, Microconvex, Linear, Small Linear, Transvaginal
-Scanning mode: Electronic array
-Display mode: B, B/M, color doppler version with B+Color, B+PDI, B+PW
-Probe element: 128/192
-Channel of RF circuit board: 32/64
-Probe frequency and scan depth, head radius/width, scan angle(convex):
Convex head 3.5MHz/5MHz, 90/160/220/305mm, 60mm, 60°
Convex head with phased array(cardiac) scan mode: 3.5MHz/5MHz, 90/160/220/305mm, 40mm, 90°
Linear head 7.5MHz/10MHz, 20/40/60/100mm, 40mm
Small Linear head 10MHz/14MHz, 20/30/40/55mm, 25mm
Microconvex head 3.5MHz/5MHz, 90/130/160/200mm, 20mm, 88°
Transvaginal head 6.5MHz/8MHz, 40/60/80/100mm, 13mm, 149°
-Image Adjust: BGain, TGC, DYN, Focus, Depth, Harmonic, Denoise, Color Gain, Steer, PRF
-Cineplay: auto and manual, frames can set as 100/200/500/1000
-Puncture assist function: the function of in-plane puncture guide line, out-of-plane puncture guide line, automatic blood vessel measurement.
-Measure: Length, Area, Angle, heart rate, Obstetrics
-Image save: jpg, avi and DICOM format
-Image frame rate: 18 frames/second
-Battery working time: 2.5 hours(according to whether keep scan)
-Battery charge: by USB charge or wireless charge, take 2 hours
-Dimension: L156×W60×H20mm(if with transvaginal head length is 270mm)
-Weight: 250g
-Wifi type: 802.11g/20MHz/5G/450Mbps
-Working system: Apple iOS and Android, Windows
Double Head Ultrasound,Wireless Machine Double Head Linear,Double Head Probe Type Wireless Ultrasound,Double Head Wireless Ultrasound
Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com