It can record the minimum, maximum and average wind speeds. The humidity range is from 20 to 80% and has modes for instant, minimum, average and maximum and dew point measurements. The design of the propeller means that it is not sensitive to the wind direction and does not need to be directed precisely to get an accurate reading. We highly.
There is a table in the PPP Code which provides a guide to wind speed and when spraying should take place. Buffer Zones and LERAPs. When spraying near water with certain pesticides, it might be necessary to leave an unsprayed strip of crop at the margin to prevent spray drifting out of the treated area. This unsprayed area is called a buffer zone. The product label (and approval) gives details.
The safety of crop spraying is reliant on measurements of relative humidity, wind speed and wind direction, these measurements are also critical for maximising the effectiveness of the spraying process. This is also a heavily regulated area with many regions specifying maximum permitted wind speed when spraying to minimise spray drift.
Many locales regulate the maximum permitted wind speed during spraying to minimize spray drift. The Kestrel 3500 DT is the difference between wet bulb and dry bulb temperatures. Its an accurate predictor of chemical evaporation rates.
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The maximum wind speed at the surface can not exceed the highest wind speed at 850 mb. Wind forecast is important for spraying chemicals and fertilizer application. Harvesting efficiency increases under calm conditions. In view of the anticipated windy condition, irrigation is avoided, otherwise lodging of the crop plants takes place. Generally stable weather conditions prevail in the morning.
Maximum spray deposit was obtained 66.1 mg cm(-2) at sprayer speed of 2.1 km h(-1) and minimum deposit was obtained 37.1 mg cm(-2) at sprayer speed of 7.7 km h(-1). The results showed that the.
The Kestrel 3500 Delta T meter allows you to accurately assess acceptable spraying conditions to ensure you're within guidelines and help you select the right spray nozzle. (Delta T is the difference between wet bulb and dry bulb temperatures. It's an accurate predictor of chemical evaporation rates). No other pocket weather meter offers this level of accuracy to arable farmers.