Use of a looped hollow fiber sampler as a deyice for nondestructive soil solution sampling from the heterogeneous root zone

Information on the water and nutrient dynamics in the root zone is essential for appropriate soil management and fertilizer application, since the root zone is the area where soil and plant interact. It is especially important to study the dynamics of the soil solution composition and concentration because many previous studies on the mineral nutrition of plants grown in soil suggested that plant roots take up nutrients from the soil solution. It is, therefore, necessary to develop an appropriate apparatus for the collection of soil solutions from the heterogeneous root zone.