The high input in time and labour required to obtain information about roots in the soil by direct observation or sampling methods has led to the development of indirect study methods. They are based on the principle of determining changes in water or nutrients in different soil layers between successive sampling occasions and from these changes inferring information on the root distribution in a soil profile.
KeywordsSoil Profile Radioactive Tracer Root Activity Water Depletion Plant Stand
Unable to display preview. Download preview PDF.