Selection and attention of pesticide application in greenhouse
2023-07-10 23:10:19
Shed vegetables often cause pests and diseases due to excessive humidity, and the commonly used spray application method also increases the humidity in the shed while applying the control. Therefore, the prevention and control of greenhouse vegetable pests and diseases should promote the application of powder spraying. Therefore, the use of powder spraying method to control greenhouse vegetable diseases has the advantages of saving labor and medicine, not increasing the humidity in the shed, and significantly improving the repellent effect. However, the application of powder spraying should pay attention to the following "two choices and two notes":
One or two choices
1. Choose a suitable dusting agent
Control cucumber downy mildew, tomato late blight, use 10% anti-mildew or 5% chlorothalonil dust; control cucumber anthracnose, black heart disease, use 5% chlorothalonil or 12% of charcoal dust For the prevention and treatment of bacterial bacterial angular spot disease of cucumber, 10% of D drops dust is used; for controlling vegetable gray mold, leaf mold, early blight and late blight, the beneficial dust is selected.
2, choose the right duster
It is advisable to use a domestic harvesting type 5 or 10 hand-cranked duster. Before the application, the shed was closed, and then the powder was sprayed at 1 kg per acre. The pesticide was placed in the sprayer medicine box, and the amount of powder discharged was adjusted to about 200 grams per minute.
Second, two attention
1, pay attention to spraying time
On sunny days, it is advisable to apply medicine in the morning or evening, and spray it on cloudy and rainy days. Applying the best after closing the shed in the evening. In the sunny morning to afternoon, the sunlight is strong and the dust control effect is low.
2, pay attention to the spraying method
When spraying powder, spray on the vegetables, whether it is uniform or not, the effect is very poor. Only a uniform air-to-air powdering effect is good. If the powder is not evenly distributed, some of the powders will not disperse well and the control effect will be reduced.
1. Great multi-purpose belt, ideal for
cleaning, finishing, blending and deburring
Multi-Purpose Belt Great for Tackling
Multiple Applications
One or two choices
1. Choose a suitable dusting agent
Control cucumber downy mildew, tomato late blight, use 10% anti-mildew or 5% chlorothalonil dust; control cucumber anthracnose, black heart disease, use 5% chlorothalonil or 12% of charcoal dust For the prevention and treatment of bacterial bacterial angular spot disease of cucumber, 10% of D drops dust is used; for controlling vegetable gray mold, leaf mold, early blight and late blight, the beneficial dust is selected.
2, choose the right duster
It is advisable to use a domestic harvesting type 5 or 10 hand-cranked duster. Before the application, the shed was closed, and then the powder was sprayed at 1 kg per acre. The pesticide was placed in the sprayer medicine box, and the amount of powder discharged was adjusted to about 200 grams per minute.
Second, two attention
1, pay attention to spraying time
On sunny days, it is advisable to apply medicine in the morning or evening, and spray it on cloudy and rainy days. Applying the best after closing the shed in the evening. In the sunny morning to afternoon, the sunlight is strong and the dust control effect is low.
2, pay attention to the spraying method
When spraying powder, spray on the vegetables, whether it is uniform or not, the effect is very poor. Only a uniform air-to-air powdering effect is good. If the powder is not evenly distributed, some of the powders will not disperse well and the control effect will be reduced.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Nylon Sanding Belt
This product is suitable for portable and desktop automatic grinding instruments, with elasticity and small grinding force, which can improve the grinding grain of workpiece well, and is easy to replace. Compared with traditional abrasive tools, nylon abrasive belt has the following advantages: it can control the minimum grinding amount, grinding depth, anti-blocking, and the probability of exceeding tolerance is the smallest. The product continuously exposes new abrasive layer during the grinding process, and the grinding effect is good.
1. Great multi-purpose belt, ideal for
cleaning, finishing, blending and deburring
2. Nylon
film backing is stretch resistant for close, ongoing cutting action
3. The film
backed belts work great on stroke sanders when reduced friction on the back of
the belt is desired
4. Gaps
between nylon fibers allow debris to escape, helping to reduce loading
5. Fibers
break down gradually to reveal fresh mineral, producing consistent cuts
6. Available
in a range of grades, minerals and converted forms,Coarse( Brown 150# ), Medium
( Red 240# ), Fine ( Blue 400# ) , Very Fine ( Grey 600 # )
Our Surface Conditioning Belt is a
durable belt engineered to perform detail work such as blending, blending
corners, cleaning, contour finishing, deburring, deburring edges, fine
finishing, flat finishing, setting the grain, stainless steel finishing, and
attaining straightline-brushed finishes on a variety of metals.
We distributes and wholesales various brands of Abrasive Sanding Disc, Cutting Wheels , Abrasive Flap Disc, Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive , Abrasive Machine and Surface Conditioning Product etc, and enjoy a high position among consumers.
Ideal for Robotic Finishing
With a wide
range of conformability options and high consistency, long-lasting industrial
abrasives are a great option for robotic metal finishing. Surface Conditioning
Belts can generate a spec-required, aesthetic finish when used in both manual
and robotic processing.
Multi-Purpose Belt Great for Tackling
Multiple Applications
Working on
flat parts especially - requires a belt that will abrade the surface closely.
Our Surface Conditioning Film Backed Belt was designed to do just that. The
nylon-backed belt has a reduced friction backing and is low stretch, so it's
unlikely to yield or stretch when run. This belt backing works well when the
standard scrim belts stretch and fall off the machine.
Versatile Belt Options
One of the best benefits of our Surface Conditioning Film Backed Belt is its versatility. Offered in a range of minerals, grades and converted forms, you're likely to find the right match for your application. Choose between silicon carbide or aluminum oxide mineral. Aluminum Oxide is available in coarse (CRS), very fine (VFN), and medium (MED) grades. Silicon carbide is available in super fine (SFN), very fine (VFN), and medium (MED) grades. Aluminum oxide is a synthetic mineral known for its sharp cut, durability and long life. Silicon carbide tends to break down faster than aluminum oxide but will also produce a finer finish.
The Many Benefits of Our Belts Available in narrow, wide and standard sizes, this belt is commonly run on a belt sander. Given their narrow widths, narrow belts tend to be a good match for workpieces with narrow areas and nooks and crannies, like lobes on a crankshaft or camshaft. Conversely, wide belts are a good match for larger workpieces like stamped parts, sheet metal parts, or dies. Independent of belt chosen, operators can rely on consistent performance; it's what they've come to expect from our abrasives. Non woven technology makes our industrial abrasives - and belts - unique. A combination of fiber strands, resin, and abrasive mineral forms a thick, open web.
Surface Conditioning Belt work well to remove coarse grind lines, mill marks, or small burrs left by cutting tools or conventional abrasives. Abrasive belts come in many different widths and lengths and are used on a variety of different belt sanding tools for many different applications on both wood and metal.
Nylon Sanding Belt,Fiber Abrasive Belts,Woven Nylon Sanding Belt,Nylon Abrasive Sanding Belt,surface conditioning belt
Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jd-abrasives.com