Education of the republic of uzbekistan tashkent state technical university named after islam karimov

№3/2021 year. 
Technical science and innovation
242 
Figure 2. The process of detection in the general appearance and field conditions of 
a modern thermometer brand HTC-2, which determines the air temperature and humidity 
Developed in the USA, where the wind speed is measured 3 times in anemometer (or 
universal Testo-400 measuring system or wind speed from 0 to 50 m/s (measurement accuracy

0.5 m/s) and wind direction up to 360
0
(measurement accuracy 

5
0
) removed 03001R.M. 
(03101R.M. + 03301R.M.) was detected with an anemometer-anemorumbometer (Figure 3).
Figure 3. Made in the USA 03001R.M. (03101R.M. + 03301R.M.) Anemometer, which 
determines the wind speed and direction - the general view and measurement process of 
the anemorumbometer 
 
During the experiment, measurements were made at an altitude of 0.5 m and 2.0 m, the 
wind direction relative to the movement of the spraying unit was determined by the 
anemorumbometer at the height of the spraying of the liquid. 
According to agrotechnical requirements, the degree of leaf coverage by effective 
coverage width, including at least 60 % below and above 80 % of crop leaves, chemical 
treatment of crops, at least - 40 pieces/sm
2
, defoliation of cotton, at least - 20 pieces/sm
2
should. 
At values below these values, the leaf surfaces cannot be fully processed. This in turn 
increases the likelihood of damage to plants. In the case of cotton defoliation, the quality of the 
defoliation process is negatively affected by reducing the likelihood of death of pests located on 
the back of the leaves. If the coating density exceeds the norm, the excess working fluid will 
flow to the ground from the leaf surface, causing damage to the soil and the environment, as well 
as the waste of chemicals or liquid defoliants. 

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