1. Soil temperature: On the one hand, temperature can promote the mineralization of soil organic matter and provide nutrients to vegetables. On the other hand, it can also promote the metabolism of vegetables and enhance the respiration of vegetables, which is beneficial to the absorption of nutrients by vegetables. The temperature is too low and too high, which has an adverse effect on the growth of vegetables. Within a certain temperature range, nutrient uptake by vegetable roots increases with increasing soil temperature. This is because optimum temperature is conducive to the growth and development of vegetable roots and the transformation and movement of nutrients in soil. At low temperatures, vegetables are prone to phosphorus deficiency, and phosphate fertilizers should be used.
2. Soil aeration: Soil ventilation directly affects the root growth and nutrient absorption of vegetables. The normal life activities of vegetable roots require oxygen content in the soil air to be greater than 10%. When the oxygen content is less than 10%, the amount of growth falls sharply and nutrient uptake is also affected. The effect of insufficient oxygen in soil air on nutrient uptake varies with nutrient elements. The order of magnitude of effect is: potassium> calcium> magnesium> nitrogen> phosphorus. Therefore, when the soil is poorly ventilated, symptoms of potassium deficiency are prone to occur, and attention should be paid to the use of potash fertilizer.
3, soil pH: different varieties of vegetables on the soil acidity requirements vary greatly, most vegetables suitable for the slightly acidic to neutral soil, legume vegetables, Chinese cabbage, etc. are not suitable for acidic soil, soil acidity prone to clubroot disease. Alkaline soil potatoes are prone to scab. The suitable soil environment for regulating vegetable growth is the most basic requirement for the normal growth and development of vegetables. Acid soil should be applied lime, alkaline soil or calcareous soil must be gypsum or sulfur, and be improved. Soil pH not only affects the growth of vegetables, but also affects soil microbial activity and soil nutrients. The content of available nitrogen in soil is the most when it is neutral.
4. Soil Moisture: Nutrients that are in a soluble state can be absorbed by vegetables through the mass flow or spread to the root surface of vegetables. Insufficient water can affect the diffusion rate of nutrients in the soil. However, excessive soil moisture can easily lead to the loss of nutrients. When the soil water content is 60-80% of the field water content, the vegetable root can grow normally, and the absorption of nutrients can also be carried out smoothly.
Features
10.1 inch high resolution color TFT display
Lightweight and portable design suitable for Ambulance,Emergency Transport
Three Working Modes : Monitoring , Surgery and Diagnosis.
Simple and friendly operating display interface.
Multi-display modes suitable for different applications: Standard Interface , Large font , ECG Standard Full Display ,OXY, Trend able BP Trend.
Built-in high capacity battery up to 3 hours of continuous work
Technique Specification
ECG
Lead Mode : 5 Leads ( I , ll , Ill , AVR , AVL , AVF , V )
Gain : 2.5mm / mV, 5.0mm /mV , 10mm /Mv, 20mm /mV
Heart Rate : 15-300 BPM ( Adult ) ; 15-350 BPM ( Neonatal )
Resolution : 1 BPM
Accuracy : ± 1%
Sensitivity > 200 uV ( Peak to peak )
ST measurement range : -2.0 ~+ 2.0 Mv
Accuracy : -0. 8mV~+ 0. 8mV : ± 0. 02mV or ± 10% , which is greater
Other Range : unspecified
Sweep speed : 12.5 mm / s , 25mm / s , 50mm / s
Bandwidth:
Diagnostic : 0.05~130 Hz
Monitor : 0.5~40 Hz
Surgery : 1~20 Hz
SPO2
Measuring Range : 0 ~ 100%
Resolution : 1%
Accuracy : 70%~100% ( ± 2 % )
Pulse Rate : 20-250 BPM
Resolution : 1 BPM
Accuracy : ± 3 BPM
Optinal Parameters :
Central monitoring system
Dual IBP
Etco 2
12-lead ECG
Nellcor SpO2
Sun Tech NIBP
NIBP
Method : Oscillometry
Measure mode Manual, Auto, STAT
Unit : mmHg , kPa
Measure and alarm range:
Adult Mode
SYS 40 ~ 280 mmHg
DIA 10 ~ 225 mmHg
MEAN 20 ~ 240 mmHg
Pediatric Mode
SYS 40 ~ 220 mmHg
DIA 10 ~ 160 mmHg
MEAN 20 ~ 170 mmHg
Neonatal Mode
SYS 40 ~ 135 mmHg
DIA 10 ~ 100 mmHg
MEAN 20 ~ 110 mmHg
Resolution : 1 mmHg
Accuracy : ± 5 mmHg
TEMP
Measure and Alarm Range : 0 ~ 50 C
Resolution : 0 . 1C
Accuracy : ± 0 . 1C
Standard Parameters
ECG, RESP, TEMP, NIBP, SPO2, PR
RESP
Method : Impedance between RA-LL or RALA
Measurement Range:
Adult : 10~120 BrPM
Neonatal / Pediatric : 7~150 BrPM
Resolution : 1 BrPM
Accuracy : ± 2 BrPM
Standard Configuration
No Item Qty
- 1 Main Unit 1
- 2 5-lead ECG cable 1
- 3 Disposable ECG Electrode 5
- 4 Adult Spo2 probe 1
- 5 Adult NIBP cuff 1
- 6 NIBP extension tube 1
- 7 Temperature probe 1
- 8 Power Cable 1
- 9 User Manual 1
- 10 Fuse 3
Patient Monitor,Portable Patlent Monltor,Patlent Monltor For Adult,Patlent Monltor For Baby
Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com