Details of the temperature is gradually rebounded, friends of farmers in the use of pesticides should note the following, China Pesticide Network Tracy:
1. Improve the utilization of pesticides and increase the adhesion of the drug. When using pesticides for open-air crops, they should be selected to be resistant to rain, and emulsifiable concentrates are suitable. These pesticides have a long residual time on the surface of the plants, while powders and liquids are relatively poor. For many crop types, there are fluff or thick waxy layers on the surface of the leaves, such as corn, green onions, ginger, taro, etc. The liquid is easy to form droplets on the villi and waxy layers, and cannot fully contact the surface of the leaves of the plants. Adding an auxiliary agent such as silicone to the medicine to enhance the effect of the medicine.
2. Properly reduce the concentration of the drug. The efficacy of most pesticides will increase with the increase of temperature. Therefore, the dosage of the drug solution should be reduced when using the drug in high temperature season, especially the pesticides of hormones. Heavy can easily lead to the occurrence of phytotoxicity. Therefore, it is necessary to adjust the concentration of the agent according to the change in temperature.
3. Pay attention to the quality of the spray. In the case of spraying the pesticide, the pesticide droplets attached to the surface of the crop leaf are limited. When the spray volume exceeds a certain limit, the fine droplets on the leaf will condense into a large mist and roll. Falling and losing, on the contrary, the amount of pesticide attached to the leaves is reduced. The spray method generally requires uniform distribution of the spray droplets and high coverage, so that it is not necessary to drip the surface of the wetted plant, so that the sprayer used is required to have a good atomization effect and reduce the waste of the liquid. At the same time, it is necessary to pay attention to the comprehensive spraying, especially some pests like to lay eggs on the back of the leaves, especially when spraying the medicine.
4. Reasonable pesticide spraying to prevent poisoning <br> network to remind you: pharmaceutical, pesticide spraying to prevent corrosion of the skin, the use of volatile pesticides must pay attention to the use of masks, while prohibiting the midday heat in summer time spraying pesticides, spraying should choose summer Take place before 9 am or after 4 pm to avoid phytotoxicity. Do not apply too long for continuous application.
Steel Grating is also called steel grate, steel grate mesh or metal grid mesh. It is made by stainless or mild steel of certain sizes through the processing of grooving, lock-pressure, welding, finishing and other treatment. Galvanized steel grating is the mostly used one due to its economic cost and good property.
Material: Mild Steel (Low carbon steel) / Stainless steel
Steel grating types:
There are three kinds of steel gratings distinguished by different bearing bar types.
The respective of features are as follows:
Plain: the most widely used gratings, available for flooring sidewalk, all kinds of ditch cover, Stair Tread, etc.
Serrated: best non-skid property & safety compared with plain grating.
I-shape: lighter, Not substantially weaken the case of load capacity more economical and practical comparing with plain grating.
Steel grating standards:
|
Standards |
Steel Grating Standard |
Steel Material Standard |
HDG Coating Standard |
|
China |
YB/T4001.1-2007 |
GB700-88 |
GB/T13912-92 |
|
USA |
ANSI/NAAMM(MBG531-88) |
ASTM-A36 |
ASTM-A123 |
|
UK |
BS4592-1987 |
BS4360(43A) |
BS729 |
|
Australia |
ASl 657-1992 |
AS3679 |
ASl650 |
Common Specifications with charting:
|
Parameters |
Data |
|
Bear Bar Type |
Flat Bar, I-Bar, Serrated Bar, etc.. |
|
Bearing Bar Size |
20x5mm, 25x3mm, 35x5mm, 40x5mm, 50x5mm, 60x5mm, etc.. |
|
Bearing Bar Spacing |
20mm, 25mm, 30mm, 33mm, 40mm, 43mm or multiplier. |
|
Cross Bar Type |
Twisted Steel Rod, Flat Bar |
|
Cross Bar Size |
3mm, 4mm, 5mm ,6mm or thicker |
|
Cross Bar Spacing |
50mm or 100mm |
|
Bearing Bar Length |
Customerized from 1000mm to 6000mm or more |
|
Cross Bar Length |
Under 1200mm |
|
Material Grade |
Mild Steel(Q235B), Stainless Steel 304 or 316, etc. |
|
Treatment Available |
Hot dipped Galvanized, Anodized, Polished and Powder Coated |
Application: Steel grating can be widely used in petrochemical, water plants, sewage treatment plants,
municipal engineering, environmental engineering and other fields of platforms, walkways, steel grating bridge , ditch cover, covers, ladders, fences and railings etc.
Steel Grating
Welded Steel Grating,Galvanized Steel Grating,Heavy Duty Grating,Electro Forged Grating,Steel Bar Grating
Anping Enzar Metal Products Co.,Ltd. , http://www.enzarmetal.com