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If the net amount of irrigation is 8 cm and field efficiency is 75%, the gross amount of water to be applied to the field will be
- a)10.66 cm
- b)8.75 cm
- c)10.66 mm
- d)8.75 mm
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If the net amount of irrigation is 8 cm and field efficiency is 75%, t...
Gross Irrigation Requirement, GIR = 
The gross amount of water to be applied to the field will be
The gross amount of water to be applied to the field will be
Most Upvoted Answer
If the net amount of irrigation is 8 cm and field efficiency is 75%, t...
To determine the gross amount of water to be applied to the field, we need to first understand the concept of field efficiency and net irrigation.
- Net Irrigation: This refers to the amount of water that actually reaches the crop root zone after accounting for losses due to evaporation, deep percolation, and runoff. It is the effective amount of water required by the crops.
- Field Efficiency: This is a measure of how effectively the irrigation water is used by the crops. It is the ratio of net irrigation to gross irrigation. Field efficiency takes into account losses due to evaporation, deep percolation, and runoff.
Now, let's solve the problem using the given information:
Given:
Net amount of irrigation = 8 cm
Field efficiency = 75% or 0.75 (since it is given as a percentage)
We are asked to find the gross amount of water to be applied to the field.
Step 1: Calculate the gross irrigation using the formula:
Gross irrigation = Net irrigation / Field efficiency
Substituting the given values:
Gross irrigation = 8 cm / 0.75 = 10.66 cm
Therefore, the gross amount of water to be applied to the field is 10.66 cm.
Now let's look at the options provided:
a) 10.66 cm - This is the correct answer as calculated above.
b) 8.75 cm - This is not the correct answer. It does not match the calculated value.
c) 10.66 mm - This is not the correct answer. It is a different unit than what was given in the question (cm).
d) 8.75 mm - This is not the correct answer. It is a different unit than what was given in the question (cm).
Therefore, the correct answer is option 'A' (10.66 cm).
- Net Irrigation: This refers to the amount of water that actually reaches the crop root zone after accounting for losses due to evaporation, deep percolation, and runoff. It is the effective amount of water required by the crops.
- Field Efficiency: This is a measure of how effectively the irrigation water is used by the crops. It is the ratio of net irrigation to gross irrigation. Field efficiency takes into account losses due to evaporation, deep percolation, and runoff.
Now, let's solve the problem using the given information:
Given:
Net amount of irrigation = 8 cm
Field efficiency = 75% or 0.75 (since it is given as a percentage)
We are asked to find the gross amount of water to be applied to the field.
Step 1: Calculate the gross irrigation using the formula:
Gross irrigation = Net irrigation / Field efficiency
Substituting the given values:
Gross irrigation = 8 cm / 0.75 = 10.66 cm
Therefore, the gross amount of water to be applied to the field is 10.66 cm.
Now let's look at the options provided:
a) 10.66 cm - This is the correct answer as calculated above.
b) 8.75 cm - This is not the correct answer. It does not match the calculated value.
c) 10.66 mm - This is not the correct answer. It is a different unit than what was given in the question (cm).
d) 8.75 mm - This is not the correct answer. It is a different unit than what was given in the question (cm).
Therefore, the correct answer is option 'A' (10.66 cm).
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If the net amount of irrigation is 8 cm and field efficiency is 75%, the gross amount of water to be applied to the field will bea)10.66 cmb)8.75 cmc)10.66 mmd)8.75 mmCorrect answer is option 'A'. Can you explain this answer?
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