Chemical test strips are often used for pregnancy and drug tests. Now the same principle’s being used by gardeners to improve soil and plant quality. The Great Lakes Radio Consortium’s David Naylor reports:
Revealing the relationship between the natural world and the everyday lives of people
Chemical test strips are often used for pregnancy and drug tests. Now the same principle’s being used by gardeners to improve soil and plant quality. The Great Lakes Radio Consortium’s David Naylor reports: