The image above represents the inflow rate. To calculate the inflow rate, six essential parameters are needed, and these parameters are Net Application Depth (Fn), Length of Border Strip (L), Lag Time (TL), Opportunity Time (Tn) and Application Efficiency (E).
The formula for calculating the inflow rate:
Qn = 1.67E-3 . Fn . L / (Tn – TL) E
Where:
Qn = Inflow Rate
Fn = Net Application Depth
L = Length of Border Strip
TLÂ = Lag Time
Tn = Opportunity Time
E = Application Efficiency
Let’s solve an example;
Find the inflow rate when the net applicaiton depth is 22, the length of border strip is 14, the lag time is 10, the opportunity time is 12 and the application efficiency is 17.
This implies that;
Fn = Net Application Depth = 22
L = Length of Border Strip = 14
TL = Lag Time = 10
Tn = Opportunity Time = 12
E = Application Efficiency = 17
Qn = 1.67E-3 . Fn . L / (Tn – TL) E
Qn = 1.67E-3 (22) (14) / (12 – 10)17
That is, Qn = 0.51436 / (2)17
Qn = 0.51436 / 34
Qn = 0.0151
Therefore, the inflow rate is 0.0151.
Read more:Â How to Calculate and Solve for Inflow Time | Irrigation Water Requirement
How to Calculate Inflow Rate Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the inflow rate.
To get the answer and workings of the inflow rate using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
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To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Agricultural under Engineering.
Now, Click on Irrigation Water Requirement under Agricultural
Now, Click on Inflow Rate under Irrigation Water Requirement
The screenshot below displays the page or activity to enter your values, to get the answer for the inflow rate according to the respective parameters which is the Net Application Depth (Fn), Length of Border Strip (L), Lag Time (TL), Opportunity Time (Tn) and Application Efficiency (E).
Now, enter the values appropriately and accordingly for the parameters as required by the Net Application Depth (Fn) is 22, Length of Border Strip (L) is 14, Lag Time (TL) is 10, Opportunity Time (Tn) is 12 and Application Efficiency (E) is 17.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the inflow rate and presents the formula, workings and steps, too.
