If barley requires about 7.5 cm of water after every 30 days, and the base period for barley is 120 days, then find the value of delta for barley.
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Barley Delta Calculation
Delta ($\Delta$) for a crop represents the total depth of water required by the crop during its entire base period.
To calculate the delta, we first need to find out how many irrigations are needed during the base period. We know the base period and the frequency of irrigation.
Given Information
- Depth of water required per irrigation = 7.5 cm
- Irrigation frequency = 30 days
- Base period for barley = 120 days
Steps for Calculation
Step 1: Calculate the number of irrigations required during the base period.
The number of irrigations is the total base period divided by the irrigation frequency.
Number of irrigations = $\frac{\text{Base period}}{\text{Irrigation frequency}}$
Number of irrigations = $\frac{120 \text{ days}}{30 \text{ days/irrigation}} = 4 \text{ irrigations}$
Step 2: Calculate the total delta ($\Delta$).
The total delta is the number of irrigations multiplied by the depth of water applied in each irrigation.
$\Delta = \text{Number of irrigations} \times \text{Depth per irrigation}$
$\Delta = 4 \text{ irrigations} \times 7.5 \text{ cm/irrigation}$
$\Delta = 30 \text{ cm}$
Therefore, the value of delta for barley is 30 cm.
Summary of Calculation
| Parameter | Value |
|---|---|
| Depth per irrigation | 7.5 cm |
| Irrigation frequency | 30 days |
| Base period | 120 days |
| Number of irrigations | 4 |
| Delta ($\Delta$) | 30 cm |
The final calculated value for delta is 30 cm.
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