In the first step, the following factors should be considered in 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 herbicides are also based on their physical and chemical properties. For example, 2,4-D butyl ester is highly volatile, although it is a systemic herbicide for stem and leaf treatment, but the amount of water should not be too low. Paraquat is highly toxic, and the large amount of water is conducive to improving 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 medicine can completely cover the weeds.
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 when using, and take a high amount when mixed with broadleaf herbicide.
In the second step, the technical specifications of the nozzle flow rate of the spray pressure must be calibrated before the formal spray.
Architectural Model,Building Design Model,Architecture Maquette,Architectural Scale Models
Nanjing Great Century Art Model Co., Ltd. , , https://www.dsjysmx.com