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- A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be?
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- A soil has a field capacity of 22% and wilting coefficient of 10\% T...
Calculation of Net Irrigation Requirement (NIR)
Given Parameters:
- Field capacity = 22%
- Wilting coefficient = 10%
- Relative density = 1.3
- Root zone depth = 50 cm
- Moisture content at which irrigation water is applied = 12%
Calculation of Available Water Content (AWC)
Available water content (AWC) is the amount of water that the soil can hold between field capacity and wilting coefficient. It can be calculated using the formula:
AWC = (Field capacity - Wilting coefficient) x Root zone depth x Relative density
AWC = (22% - 10%) x 50 cm x 1.3
AWC = 3.9 cm
Calculation of Depletion of Available Water Content (DAWC)
Depletion of available water content (DAWC) is the amount of water that the plants use before the next irrigation. It can be calculated using the formula:
DAWC = AWC x (Initial moisture content - Moisture content at which irrigation water is applied)
DAWC = 3.9 cm x (22% - 12%)
DAWC = 0.39 cm
Calculation of Net Irrigation Requirement (NIR)
Net Irrigation Requirement (NIR) is the amount of water that needs to be supplied through irrigation to replenish the depleted water content. It can be calculated using the formula:
NIR = DAWC / Irrigation efficiency
Irrigation efficiency is the percentage of water supplied through irrigation that is available to the plants. It depends on various factors such as method of irrigation, soil type, etc. Let's assume an irrigation efficiency of 80%.
NIR = 0.39 cm / 80%
NIR = 0.49 cm
Therefore, the Net Irrigation Requirement (NIR) is 0.49 cm. This means that 0.49 cm of water needs to be supplied through irrigation to replenish the depleted water content.
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- A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be?
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- A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about - A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for - A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be?.
- A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about - A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for - A soil has a field capacity of 22% and wilting coefficient of 10\% The relative density of soil is 1.3 and the root zone depth is 50 cm. If irrigation water is applied when moisture content falls to 12\%, then Net Irrigation Requirement (NIR) would be?.
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