Deficit Irrigation Toolbox

drip irrigation of beans © IHM

Deficit Irrigation Toolbox (DIT) is an open-source software to simulate and maximize crop-water productivity of deficit irrigation systems. Written in Matlab language, the toolbox allows you to perform the complex analysis of crop yield response to climate change, soil variability, and water management practices.

The current DIT version includes:

  • interfaces to crop models: Simple Soil-Water Balance, AquaCrop-OS .

  • 9 irrigation strategies including rainfed, soil-moisture based, constant, and optimized open-loop and closed-loop irrigation scheduling strategies.

  • advanced features like site-specific crop-water production functions, parallel computation, and a probabilistic framework for the analysis of climate and soil variability on crop yield.

Development team:

Oleksandr Mialyk and Niels Schütze

Acknowledgements

The code of Deficit Irrigation Toolbox includes several external open-source software packages:

  • evolutionary optimization tool CMA-ES (version 3.61 beta, 2012) developed by Nikolaus Hansen paper
  • Aquacrop-OS developed by Tim Foster paper

Algorithms are based on the following papers:

  • evolutionary optimization tool GET-OPTIS developed by Michael de Paly and Niels Schütze paper
  • probabilistic optimization framework OCCASION developed by Niels Schütze  paper

Links to:

Example of results
report as text
diagram of stochastic climate
crop water production function
yield histogram

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Michael Wagner
Letzte Änderung: 04.11.2021