Italia Star Com Due BISONTE BTA-MD600Y, Руководство пользователя, Страница: 127 / 150

Depending on the design of the atomizer, it is possible to produce droplets with a size of approx. 50 to 250
Ȳ
m. The large number of fine droplets and the airstream's excellent penetration of the crop ensure high
efficiency. This means that the quantity of carrier liquid (normally water) can be reduced, i.e. a higher
concentration of active ingredient can be used in the solution.
Considerably less energy is required to accelerate air than water. Therefore, low-volume mistblowers are
more efficient (long range with relatively low) engine power and low weight).
Determining and mixing required quantity of solution
Step 1:
Determine the surface area to be treated in square meters (m
2
).
In the case of ground crops, simply multiply the length of the field by its width. The surface area of high-growing
plants is calculated approximately by measuring the length of the rows and the average height of the foliage.
The result is multiplied by the number of rows and then by two if both sides.have to be treated.
Step 2:
Refer to the instructions supplied with the active ingredient to establish the required quantity (usually quoted
for 1 hectare
ł
ha
ń
) and the concentration (mix ratio) of the solution. Manufacturers normally quote the concentration
required for high-pressure spraying.
Low-volume mist-blowing achieves about four times the yield of high-pressure spraying.
If the manufacturer's instructions do not contain any data for low-volume mistblowing, reduce the amount of
carrier liquid (water) accordingly to obtain the required concentration of active ingredient.
Step 3:
Multiply the quantity of solution required for 1 hectare by the surface area calculated in Step 1. The result is
the quantity of solution needed for the surface area to be treated. The surface area in hectares is obtained
by dividing the number of square meters by 10000.
Example:
A field 120 meters long and 30 meters wide has to be treated with a pesticide.
120 m x 30 m = 3.600 m
2
10,000 m
2
1 ha
3,600 m
2
= 0.36 ha
Area:
According to the maker's instructions, 0.6 liters of pesticide are required per hectare to obtain a concentration
of 0.1% for high-pressure spraying.
A concentration of 0.1% means a mix ratio of 1 part pesticide to 1,000 parts water. In this case 0.6 liters
pesticide would have to be mixed with 600 liters water.
In low-pressure mistblowing only one quarter of the water is sufficient for the same amount of active ingredient
(pesticide).
The quantity of solution per hectare is therefore:
1000 T
w
0.61 x
4
= 150 l
1 T
o
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