Management of soil pH is a crucial part of a successful cropping system. pH has a huge impact on nutrient availability and mineralisation of organic matter through microbial processes, both of which impact on crop growth and yield, rooting behaviour, production of biomass residues and consequently soil organic matter. Management of soil pH as a crucial part of a successful cropping system. Tulloch-The experiment was originally designed to compare rotations with different approaches to fertility by comparing two organic arable-ley rotations with contrasting levels of fertility building ley across a six course rotational period, with every crop grown every year. The two rotations in the stockless system differ in that one has a sequence involving potatoes followed by spring wheat after the fertility cut-and-mulch grass-clover phase, while the other has spring wheat followed by potatoes after the grass-clover phase. All other crops in the rotational sequences are identical.
