In recent years, vegetable pests and diseases in sheds have become more and more serious, and vegetable farmers have become more and more serious. However, many vegetable farmers have shown that the use of pesticides is becoming less and less satisfactory. The development of new spraying methods to improve the vegetable farmers is very irregular in spraying, which affects the efficacy of the drug.
(1) Diamond pen dressing grinding wheel: According to the size of diamond particles and their distribution in the pen, diamond pens can be divided into several types, such as chain and powder. The alloy with strong bonding force is used as the bonding agent, so the diamond grinding wheel particles are not easy to fall off during use, so there is no need to repair the grinding process.
(2) Grinding wheel dressing by rolling method: Diamond grinding wheel dressing by rolling method. Grinding wheel drives the rolling wheel at the speed of 1~2m/s by reducing the speed
Made of, carbide or abrasive) rotary. The pressure of rolling wheel applied to grinding wheel is about 3~5MPa, grinding the surface of diamond grinding wheel
Make the abrasive particles fall off. The grinding wheel dressing by rolling method has better cutting performance and lower cost, but the surface roughness of the grinding part is rougher and rolling
Damage, short life, easy loss of precision. Therefore, this dressing method is mainly used for forming grinding with small batch size and low precision.
Green silicon carbide or ceramic white corundum is used for dressing. Dressing ring is the first choice for dressing diamond grinding wheel or CBN grinding wheel. It is sharp in dressing, not easy to remove sand and has high dressing efficiency. Wheel Dresser,Dressing Tools,Dressing Roller,Grinding Wheel Dresser Henan Jinlun Superhard Material Co., Ltd , https://www.jinlunsuperhard.com
1. A large spray of mist. We observed in many sheds that the spray agent in the sprayer is a large mist. This spray method will make the spray uneven, especially affecting the control effect of the contact agent.
The mist spray is also easy to cause the loss of liquid medicine, and the waste is more serious when the plant is low. Therefore, a sprayer with good atomization performance should be used, and a small hole spray film should be used to evenly spray.
2. When spraying, the zigzag swing spray in front of the body. Spraying the medicine directly in front of the body, often spraying the medicine in front, the vegetable farmer has to continue working in the environment where the medicine has been sprayed, which is easy to cause pesticide poisoning.
In addition, when spraying the closed herbicide , it is easy to spray unevenly, and the artificial membrane will break the membrane after the stepping, thereby reducing the control effect. The word "Z" in front of the manual sprayer should be changed to the side "Z".
3. Do not distinguish between sprayer types, all direct "target" crops. Different sprayers should be sprayed differently and cannot be in one mode.
In general, manual sprayers can be sprayed in a direct "target" manner. In order to give full play to its characteristics of good atomization and high work efficiency, the motorized sprayer should be sprayed 20 cm above the crop.
4. The sprayed liquid drops from the leaves. The reporter observed some leaves that had just been sprayed, and found that many liquids dripped from the leaves, and some dripped directly onto the ground, so that the effective dose of the liquid on the leaves was reduced, which was not only difficult to exert the effect, but also caused a large amount of pesticide waste. .
Therefore, it should be sprayed evenly during the operation to minimize the spraying residence time, reduce the dripping of the liquid from the leaves, and improve the efficacy.
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