Interactive tools: Calculators, decision support systems and models

The Nutrient Decision Support System (NuDSS) for irrigated rice is part of an initiative by the Irrigated Rice Research Consortium to provide decision support on site-specific nutrient management (SSNM) in the irrigated lowlands. It is a software program used to estimate the nutrient requirements for realistic target yields in irrigated rice, select the adequate and least costly combination of quality fertilizer sources to match the nutrient requirement, decide on fertilizer split applications, and estimate the profit gained from improved nutrient and crop management programs.
www.ppi-ppic-ipi.org

This model simulates the growth response of 13 crops to applications of potassium fertilizer.
The model is complete with graphical output.
This on-line dynamic model will deliver your results in a few seconds.
Models are also available for Nitrogen and phosphate.
www.qpais.co.uk

By entering the expected yield, the nutrient removal of potassium, magnesium and sulphur can be obtained for various crops.
www.kali-gmbh.com