How does CABR research help farmers grow healthier crops? (CABR Research Work Spotlight)

In the video below, Lord Gyimah, a PhD researcher at Centre for Applied Bioscience Research (CABR), is quantifying nitrate concentrations in soil leachate samples using the Dionex AS-DV Autosampler in combination with a Dionex ICS Ion Chromatography System, both manufactured by Thermo Scientific. This analytical procedure forms part of his doctoral research.

The objective of the analysis is to accurately determine the concentration of nitrate ions (NO₃⁻) that have migrated through the soil matrix. 

Why measure the concentration of nitrate ions (NO₃⁻)?

Each crop (wheat, for example) requires a different level of nitrate-nitrogen (NO₃-N) concentration for optimal growth, and by analysing the soil, we can ensure the soil quality is adequate for the specific crop type.

The analysis process involves precise sample preparation, calibration with certified standards, and instrumental analysis to identify any statistically significant nitrate concentrations.

PhD student Lord Gyimah began his research with CABR in August 2024 through a scholarship funded by the Department of Agriculture, Food and the Marine (DAFM). His project investigates the potential of natural biostimulants to improve grass growth and soil health in perennial ryegrass and multi-species swards.

He employs a range of analytical techniques including ion chromatography, gas chromatography, inductively coupled plasma mass spectrometry (ICP-MS), LECO analysis, and near-infrared spectroscopy (NIRS). The project is supervised by Dr Patrick Quille and Dr Bernard Boateng.