Anonymous
Nov 6, 2023
A six nozzle ganged at 75 cm self propelled boom sprayer with a tank capacity of 700 litres is set for 5/50 ha field calibration? Determine the;? ?
- effective sprayer with a coverage? - length to cover 5/50 hectares - Quantity of water in litres used during calibration If the water level dropped to 695litres Mark from its full capacity? - quantity of water in litres needed to spray the field? - quantity of paraquat pre-emergent herbicide in litres to be mixed with the quantity of water in the question above with application rate of 2 litres/ ha? -number of boom sprayer tanks to be used when spraying a 55 ha field?
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ChatGPT
Nov 6, 2023
To determine the calibration of the sprayer, we need to calculate the application rate and the speed of the sprayer.
1. Application Rate:
The application rate is the amount of liquid applied per unit area. It is calculated using the formula:
Application Rate (L/ha) = Tank Capacity (L) / Area (ha)
Given:
Tank Capacity = 700 L
Area = 5/50 ha
Convert the area from hectares to square meters:
Area (ha) = 5/50 ha = 5000/50 m^2 = 100 m^2
Calculate the application rate:
Application Rate (L/ha) = 700 L / 100 m^2 = 7 L/ha
2. Speed of the Sprayer:
The speed of the sprayer is the rate at which it moves across the field. It is calculated using the formula:
Speed (km/h) = Nozzle Spacing (cm) / 100 * Flow Rate (L/min) / Application Rate (L/ha)
Given:
Nozzle Spacing = 75 cm
Flow Rate = unknown
We need to find the flow rate of the sprayer. To do this, we can use the following formula:
Flow Rate (L/min) = Application Rate (L/ha) * Speed (km/h) * 100 / Nozzle Spacing (cm)
Given:
Application Rate = 7 L/ha
Speed = unknown
Let's assume a speed of 8 km/h for the sprayer.
Flow Rate (L/min) = 7 L/ha * 8 km/h * 100 / 75 cm = 9.33 L/min
Therefore, the flow rate of the sprayer is 9.33 L/min.
In summary, for a 5/50 ha field calibration, the sprayer should be set to an application rate of 7 L/ha and a speed of 8 km/h with a flow rate of 9.33 L/min.
1. Application Rate:
The application rate is the amount of liquid applied per unit area. It is calculated using the formula:
Application Rate (L/ha) = Tank Capacity (L) / Area (ha)
Given:
Tank Capacity = 700 L
Area = 5/50 ha
Convert the area from hectares to square meters:
Area (ha) = 5/50 ha = 5000/50 m^2 = 100 m^2
Calculate the application rate:
Application Rate (L/ha) = 700 L / 100 m^2 = 7 L/ha
2. Speed of the Sprayer:
The speed of the sprayer is the rate at which it moves across the field. It is calculated using the formula:
Speed (km/h) = Nozzle Spacing (cm) / 100 * Flow Rate (L/min) / Application Rate (L/ha)
Given:
Nozzle Spacing = 75 cm
Flow Rate = unknown
We need to find the flow rate of the sprayer. To do this, we can use the following formula:
Flow Rate (L/min) = Application Rate (L/ha) * Speed (km/h) * 100 / Nozzle Spacing (cm)
Given:
Application Rate = 7 L/ha
Speed = unknown
Let's assume a speed of 8 km/h for the sprayer.
Flow Rate (L/min) = 7 L/ha * 8 km/h * 100 / 75 cm = 9.33 L/min
Therefore, the flow rate of the sprayer is 9.33 L/min.
In summary, for a 5/50 ha field calibration, the sprayer should be set to an application rate of 7 L/ha and a speed of 8 km/h with a flow rate of 9.33 L/min.
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