Summer management of vegetables to a certain extent, watering directly determines the growth of vegetables, yield and quality. In summer, the temperature is high, the soil and plants are transpiration and moisture are fast, and it is prone to drought, which affects the growth of vegetables and induces viruses easily. However, improper watering can also lead to the occurrence of physiological diseases. Specific watering in summer should pay attention to the following four points:
Do not water at noon. Some vegetable farmers believe that the highest temperature at noon, when the watering just to cool the vegetables cool. In actual fact, watering at noon can easily lead to “rooted†roots in vegetable roots after cold water stimulation, resulting in a significant reduction in vegetables. Therefore, before 10:00 in the morning, it can not only reduce the temperature but also cause no damage to the roots of vegetables. .
Do not flood. Many vegetable farmers believe that summer temperatures are high. When watering, flooding should be used to flood the area, and large and small rows should be poured together. This can reduce the temperature and the ground temperature and ensure the moisture supply of vegetables. It is conducive to the growth of vegetables. However, everyone knows, Dashui floods fields. Easy to collect water. Roots are restrained from breathing in an anaerobic environment. They are prone to picking up roots, rotting roots, and turning yellow leaves, seriously affecting fruit yield, and even causing the death of whole plants. This is especially true for sweet peppers and tomatoes. So, even in the summer, the amount of watering should not be excessive. In order to avoid the lack of water in the roots on the side of the big ditch, it is best to alternately pour in large and small rows.
Do not dry and damp. Solanum, melon vegetables, the results of the period, suddenly dry Hu Hu easily cracked fruit. This is due to the lack of water in the soil when the expansion of the fruit is inhibited, once the watering too much, the fruit quickly absorb water, speed of fruit expansion, especially the pulp part of the large amount of water absorption, the skin growth rate is relatively slow, so it is prone to cracking, This phenomenon is particularly evident in tomato and melon crops.
B scan:
Frequency: 10MHz/20MHz (optional) ,Magnetic driven, noiseless
Scanning Mode: Sector Scanning
Magnify:Multi continuous magnification,Real-Time magnification
Resolution: Lateral ≤0.3mm;Vertical≤0.2mm
Geometry position precision: Lateral ≤10%;Vertical≤5%
Depth:60mm
Enhance the part of vitreous body and retina
Gain of probe:30dB-105dB
Scanning Angle:53°
Gray Scale: 256
False Color: Multi colors. OCT
measurement type: multigroup distances, perimeters and areas
Image postprocessing: multiple curves processing, Pseudo-color processing curve
Movies: 100 images movie review, AVI JPG format image output
A scan:
Frequency:10MHz, with LED
Depth: 40mm
Precision:±0.05 mm
Measurement: Anterior chamber depth, lens thickness, vitreous body length, total length and average
Eye mode: Phakic / Aphakic / Dense / Various IOL
IOL Formula: SRK-II, SRK-T, HOFFER-Q, HOLLADAY,BINKHORST-II, HAIGIS
Stat. Calculation: Average and standard deviation
Store: 10 Scanning results for each eye
Others:
Display Mode :B.B+B.B+A.A
Hint: preset keyword
Case Search:Multi-keywords
Working Platform: Windows XP.VISTA.WINDOWS7
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