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Nutrient exports from agriculture are an important environmental issue in many countries. In some production systems phosphorus (P) and nitrogen (N) accumulate at or near the soil surface and cultivation is one option for addressing the legacies of previous nutrient applications.This study aimed to compare the effects of cultivation (mouldboard ploughing), pasture type (ryegrass or ryegrass–clover)...
Organic phosphorus (P) in grazed pastures/grasslands could sustain production systems that historically relied on inorganic P fertiliser. Interactions between inorganic P, plants and soils have been studied extensively. However, less is known about the transformation of organic P to inorganic orthophosphate. This paper investigates what is known about organic P in pasture/grassland soils used for...
Phosphorus transferred from land to water is a major problem across the world. Identifying the source of phosphorus in water is an important prerequisite to the development of remedial strategies. In this paper, key aspects of phosphorus transfer from grazing land to water are reviewed along with the techniques that may be used to trace its origin.Dissolution and erosion are the two processes that...
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