Global and country-specific advice on crop health and pest management.
This free Android app helps you to use fertilizer more efficiently to optimize your fertilizer investments. It is based on robust crop response functions.
You can use it to:
The Fertilizer Optimizer Tool is free for everyone to download and use. It is particularly useful for:
The Fertilizer Optimizer Tool can provide calculations relevant to 13 African countries. These are Burkina Faso, Ethiopia, Ghana, Kenya, Malawi, Mali, Mozambique, Niger, Nigeria, Rwanda, Tanzania, Uganda and Zambia.
Occasionally, CABI will release updates for the Fertilizer Optimizer Tool. To update your app, you need a stable internet connection and additional storage space on your device.
The Fertilizer Optimizer Tool helps you to use fertilizer more efficiently so you can optimize your fertilizer investments.
The app will ask you for information on:
Based on robust crop response functions, the app calculates the most profitable combination of fertilizers to purchase and advises you on crop and site-specific application rates. The app also takes into account any integrated soil fertility management (ISFM) practices to further tailor the fertilizer recommendation to your farm.
After entering the required information, click “Calculate” to optimise. Depending on the financial level, and the estimated price of the ready crop at the end of the season, the output example will display as follows:
In practice, manure application and crop rotation are good agricultural practices that add nutrients to the soil. For the most accurate results, previous practices used on the land/farm should be taken into account. The recommendations will change accordingly, as will the total fertilizer type needed per crop. This is because of the existing nutrients in the soil.
On the app, select a container and fill in the required spacing, the click “calibrate fertilizers” to find out how far the fertilizer in the selected fertilizer container will go. If multiple crops have been entered, calibrate for each crop.
Results can be shared via SMS, WhatsApp or other sharing options available on your device.
We’ve created the Fertilizer Optimizer app so that extension workers and farmers can have free access to fertilizer advice, on mobile devices. The app runs offline allowing you to perform optimization calculations in the field. The app will periodically check our servers for updates to the tool.