Code:1197164
Code:1197159
Code:1197163
Code:1197162
4.4. Influence of climatic conditions
During application, some factors may determine the interrup-
tion of the spraying. Wind currents, for example, can drag drops
to a greater or lesser distance in terms of its size or weight. The
temperature and especially the relative humidity contribute to
the rapid evaporation of the droplets.
The ideal conditions for spraying are:
• Relative humidity: minimum 50%;
• Wind speed: 3-10 km / h;
• Temperature below 30 C.
These limits should be considered according to technology
application that will be used, adopting the safest class drops
within the boundaries of each situation.
Air velocity around the nozzle
height
Up to 2km/h
2 to 3 km/h
3 to 7 km/h
7 to 10 km/h
10 to 15 km/h
Factors
Temperature
Relative humidity
8/68
0.8 Bar (0.8 kgf/cm²)
1.0 Bar (1.0 kgf/cm²)
1.2 Bar (1.2 kgf/cm²)
1.3 Bar (1.3 kgf/cm²)
1.5 Bar (1.5 kgf/cm²)
1.7 Bar (1.7 kgf/cm²)
1.8 Bar (1.8 kgf/cm²)
2.0 Bar (2.0 kgf/cm²)
2.3 Bar (2.3 kgf/cm²)
2.8 Bar (2.8 kgf/cm²)
3.0 Bar (3.0 kgf/cm²)
3.2 Bar (3.2 kgf/cm²)
Description
Calm
Nearly calm
Light breeze
Light wind
Moderate wind
Classes of drops according to weather conditions
Very thin or thin
below 25º C
above 70%
Visible signs
Smoke rises vertically
The smoke is tilted
The leaves range. Feel the light
wind
Leaves and thin branches in
constant motion
Movement branches. Dust and
pieces of paper are carried by
the wind
Thin or medium
25 to 28º C
60 to 70%
Visible signs
Recommended only with thick,
very thick drops
Ideal for spraying
We recommend only the drift
reduction technique
Improper for spraying
Medium or thick
above 28º C
below 60%