Vertical stratification of K uptake for soybean-based crop rotation

Soybean [Glycine max (L.) Merrill] is a major grain-legume used in rotation with cereal crops throughout the world. However, little is known about the soybean-based crop rotations effects on potassium (K) efficiency and its cycling capacity in soil. Therefore, a field study was carried out over 2 years to assess K cycling and which soil depth contributes to K uptake in first soybean crop as well as in the following crop rotation within the same...