Irrigation Calculator Drip Lateral Length Apllication Rate

Drip Irrigation Calculator

So.. you have your field ready for planting, but you don’t know how to calculate the Flow Rate and how much drip lines you need to order from your supplier,

so here is a very cool drip-irrigation-calculator for you.

just chose the desired Area unit you are using normally (you can choose between acres or hectares) if don’t use any of the last ones I mention just do the conversion with this one

Now insert the Emitter Flow rate (in liter per hour), the distance between laterals, the distance between emitters, and if you want more then one drip irrigation lateral per crop row just add it in the box

 voila  🙂  it’s ready. not sure about which is which? check out the image!

in the upper box,  you can see the results, including your application rate (the rate that tells you how many hours you need to irrigate your plant according to agronomy detail), flow rate and the drip lateral length according to your field area.

Any comments are more than welcome.





Inventor Add On Development

AutoDesk Inventor Macro-Plugin-Add on

AutoDesk Inventor Macro-Plugin-Add on

AutoDesk Inventor provides the means to create macros that perform tasks or actions a user normally performs via mouse or keyboard commands. These Inventor Macros are produced using Visual Basic for Applications (VBA), a common scripting language used by many populate desktop applications, and as such have similar concepts and features.
Inventor Macros are often used to automate repetitive tasks or streamline more complex actions where a customised user interface can be designed to control or capture specific content.
The Inventor Macro VBA code editor is accessed via the Tools> Macro> Visual Basic Editor
Menu. There one or more macros can be created and stored within a drawing document or separately its own project (*.ivb) file. Since the VBA editor is integrated into AutoDesk Inventor, creating a macro can be straightforward with the Inventor drawing objects and their properties easily accessible via the Object Browser, great for prototyping a solution.
The Inventor Macro can be run from the Tools> Macro> Menu or assigned to a shortcut/button

AutoDesk Inventor Plugins (or Addins) provide much the same features however they are created using more advanced programming languages (VB.Net, etc). The code created is not visible to users, instead it is compiled into DLL files that can be loaded by Inventor.
Creating a Plugin/Addin rather than using VBA enables more advanced integration and a richer user interface.

AutoDesk provide template projects for use with external development tools such as Visual Studio. These templates include the required Inventor modules (APIs) that enable the drawing objects and their properties to be accessed. AutoDesk Inventor Plugins/Addins can be wrapped into a bundle along with supporting files and placed in specific locations Inventor searches in order to load either at startup or on-demand. These bundles can themselves be packaged into an installation script so they can be easily distributed.

Land Area Measurement

Land Area Measurement

Land Area Measurement and the units of measurement have historical links to agriculture. An acre was the land tillable in one day by a man with an ox drawn the plough. Traditional acres would be long, narrow strips to avoid the difficulty in turning the plough. For simple regular shapes as these or a rectangular field/site, measuring just requires two values, length and width.
The importance of being able to accurately measure land area for agriculture means livestock will be fed without causing damaging over grazing; Crops can be adequately irrigated without fear of wasting precious natural resources; Fertilization can be optimised to ensure the best return on investment and minimise ecosystem impact from excess run-off; And ultimately crop yield can be predicted.
However, today often a field/site will be an irregular shape that is not that simple to measure, manually calculate, nor even estimate its area. Fortunately, tools such as Area Measure take the uncertainty away by providing an accurate means to measure the land area.

Free LISP programs

 Free LISP programs are programs written in AutoLISP Language that is a dialect of the old LISP programming language, but specifically built for AutoCAD (Full Version, Not LT)

These programs can help drafters significantly reduce time spent on repetitive tasks, sometimes from days to seconds.

You can find many free LISP programs here on this site. There are many discussions and lots of free functions to be found within relevant forums like CADtutor and TheSwamp .

LISP programs are used  with BricscadIntelliCAD and other CAD drafting software beside AutoCAD.

Using  LISP programs is very easy, the simplest form of testing one is saving the source code as .lsp file. [ To be clear : copy the code you find then Open Notepad >Paste your Code> Save As> xyz.lsp ]

Now you can drag this file into your current AutoCAD drawing and use the LISP!

In most LISP programs you will find the command that calls the LISP at the first row of the code : [ something like : (define c:xyz ]

Usually save your file as the command shortcut (eg: xyz.lsp ), then you will always know how to call the command.

There are some other ways to load LISP files so that every session of AutoCAD to auto upload them, like adding them to the “startup suite”.Load Autocad Lisp On Every Drawing [ To be more clear : type AP at the command line, then you will get a dialog box. On the buttom right you will see an image of briefcase, click on “Contents” add your LISP files and Restart AutoCAD.

Note: Remember to put your .lsp files in the same location , AutoCAD uses the location as reference, so if you move them from there, AutoCAD will not find them.





Building A Raft

Building a raft for irrigation systems can be a very useful way to hold equipment above water level or at a certain depth beneath the water.

For example: you may have suction baskets you want to keep away from the riverbed or hold maintenance equipment in the middle of a river you pump from.

Raft Buoyancy

Suction Baskets


There are many cool instructions on how to build one like this.

I like the idea of building one from the materials you have already and repurposing items that would otherwise become trash in our environment. Plastic barrels were the first thing I had in mind and actually it’s probably because I saw that as the most common buoy used in irrigation projects we design for developed countries.

Building a raft isn’t difficult but calculation for buoyancy might be a pain in the #@!# for some, so we created a buoyancy calculator especially for this purpose. The calculator defaults to dimensions of a typical 200-liter barrel made from plastic but these may differ a little between manufacturers. You can always google to find the appropriate barrel and change dimension accordingly. (Remember to get the info for the barrel weight, as it will affect the buoyancy of course.)

Beside making sure the raft will float, you need to know how deep the barrels will be submersed in water and how much additional weight you can have on the raft. We built a very cool slider that you can play with water level on the barrel.

The frame of the raft will have its own weight that can be added too, and the calculator assumes that it will be above the water level or at least does not contribute any additional buoyancy if submerged, so the worst case is covered! You can add as many barrels as you want.

Note: This buoyancy calculator built on responsive template so it will fit on your mobile device without downloading additional apps 🙂 


Buoyancy Calculator
Water Level Slider

Written By : Noam Kompano