Phosphorus (P) is a vital soil macronutrient required by plants for optimum growth and
development. However, its availability is limited because of fixation. The phosphorus fixation …

In acid soils, soluble inorganic phosphorus is fixed by aluminium and iron. To overcome this
problem, acid soils are limed to fix aluminium and iron but this practice is not economical …

Legacy phosphorus (P) in soil, accumulated over several years of fertilizer application in
excess of crop demand, represents a huge and largely untapped resource. P activators can …

In the northeast USA, most soil samples analyzed for soil test P (STP) in 1990 exceeded P
levels needed for plant production. Converting soil P to less soluble forms with applications …

Reutilizing biomass ashes in agriculture can substitute inputs of P from finite primary
sources. However, recycling of ashes is disputed due to their content of toxic substances …

Plant availability and risk for leaching and/or runoff losses of phosphorus (P) from soils
depend among others on P concentration in the soil solution. Water-soluble P in soil …

Aims The objectives of this study were to evaluate (1) the fertilizer potential of bone char,(2)
the effects of wood biochar on plant-available phosphorus (P), and (3) the role of root …

Under organic management soil fertility is maintained using amendments of animal manures
and composts as alternatives to synthetic phosphorus (P) fertilizers. These amendments can …

Wood ash is a residual material produced when wood is burned for energy production. It is a
useful soil amendment because it raises soil pH and has the potential to supply plant …

Organic matter can sorb P in acid soils through metal-organic matter-phosphate complexes.
The pyrophosphate extractable Al and Fe and soil C contents were hypothetized to influence …