Effect of soil phosphorus availability and residue quality on phosphorus transfer from crop residues to the following wheat

Background and aims Legume break crops provide a series of agronomic benefits to the following wheat crop in a rotation. Phosphorus-efficient break-crop plants can mobilise P from non-labile pools in the soil and this could be made available to wheat plants after the decomposition of the break-crop residues. This study aimed to examine the contribution to P uptake by wheat plants, of residues from five different break crops with different maturities and C:P ratios.