The researchers aimed to find the ideal temperatures for eight different cover crop species to help predict their growth. They conducted an experiment in a controlled environment with varying temperatures and counted the number of leaves that grew. The study revealed new base, optimum, and maximum temperatures for these cover crops, which were not previously known. For example, the base and optimum temperatures for cereal rye were found to be -4.5 and 24.8°C, while balansa clover had a base temperature of 3.4°C. These new temperature findings will help in creating better models to predict cover crop growth and assist in decision-making for when to terminate cover crops.