On-site soil nutrient analysis system for smallholder farmers 

John Hart & Chintan Vaishnav with Michael Arnold

Soil nutrient deficiency is a primary cause of lower crop yields, especially for smallholder farmers. These nutrients can be added using fertilizer. Improving the crop yields would increase agricultural output and increase farm income. To efficiently use fertilizer, a regular soil nutrient analysis is required. However, in low-resource countries soil analysis is very expensive and is often not done.

This project is developing an affordable on-site soil nutrient analysis system, enabling the accurate measurement of nitrate, phosphate, potassium, and pH.

The efficient use of fertilizer will also reduce unnecessary applications, saving the farmer money and reducing the environmental impact due to runoff. 

This grant is funded by the JWAFS Solution Program.

See Michael Arnold present their project at IdeaStream 2019 below.