How to control the amount of water using herbicides
The most important method of application of herbicides is spray. The liquid medicine prepared by spraying the herbicide with water is called spray liquid. Since the herbicide is used at a lower dose, the amount of water is approximately equal to the spray liquid. How can we grasp the amount of water in the herbicide? The first step, the initial decision. The following factors should be considered when selecting the amount of water: 1. Pharmacy. In general, the amount of contact herbicides is > water-supplying herbicide, soil treatment agent > stem and leaf treatment agent. Some of the herbicides according to the physicochemical properties of water should be set as the abundance Kemi original drug is insoluble in water, when the discharge concentration less than 2%, the active ingredient will be crystallized, it is not too large amount of water to 13 -20 liters is suitable; and 2,4-D butyl ester is highly volatile. Although it is a systemic herbicide for stem and leaf treatment, it should not be too low in water. Paraquat is highly toxic and has a large amount of water (using a manual sprayer to spray a diluted solution to 40 times more water) is beneficial to improve the safety of humans and animals. 2, weeds. If the grass in the field is small, the water can be less; on the contrary, the water should be more. The liquid can be completely covered with the weeds to avoid the waste of the liquid. 3. Environment. When the weather and soil are dry, the amount of water should be increased appropriately. 4. Use. The amount of water is closely related to the application method, application method, and application equipment. For example, the high-efficiency grass can be applied with a knapsack sprayer, the water volume per acre is 20-30 liters, and the spray bar sprayer is 7-14 liters; Take a low amount of water and take a high amount when mixed with a broadleaf herbicide. The second step is to verify. The amount of liquid spray = nozzle flow rate × travel speed ÷ effective spray width. It can be seen from the formula that any one parameter change will cause the liquid volume to fluctuate. Technical indicators such as nozzle flow rate of spray pressure must be calibrated before formal spraying. The third step is to determine. The selection of the amount of water should be based on pesticides , grass, time and conditions, specific analysis, specific problems, specific solutions. More pesticide knowledge, please pay attention to China Pesticide Network
Shear Beam Load Cells are widely used where operators need to measure compressive forces. The core component of a shear beam load cell is a spring element. This element is a piece of metal that is elastically deformed under load and recovers the moment the load is removed.
The (single-ended) shear beam is designed for low profile scale and process applications. The shear beam capacities are from 100kg to 50t. One end of the shear beam contains the mounting holes while the opposite end is where the cell is loaded. The load cell should be mounted on a flat smooth surface with high-strength hardened bolts. The larger shear beam cells have more than two mounting holes to accommodate extra bolts to keep the hardware from stretching under stress load.
Load Cell Central,Shear Beam Load Cells,Larger Shear Beam Cells,Load Cell Measure Compressive Forces Zhejiang Nanhua Electronic Technology Co., Ltd , https://www.nhloadcells.com