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Showing 1 to 3 of 3 for “"Phosphorus Index"”.
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Phosphorus Management: An Analysis of the Virginia Phosphorus Index
Excess phosphorus (P) that is transported into water bodies can cause water quality problems. A high potential for P delivery occurs when there is a high transport potential from erosion, runoff, and/or leaching coupled with high soil test P and/or high rate of fertilizer P application. A …
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Phosphorus runoff potential of different sources of manure applied to fescue pastures in Virginia
Version 2.0 of the P Index for Virginia uses coefficients describing the risk of P losses for different manure sources applied to fescue pasture that have not been verified on Virginian soils. In the first experiment, four sources of manure (dairy slurry, piggery waste, beef solids, and poultry …
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Biogeoquímica del fósforo en el suelo: optimización de criterios para un uso agronómico eficiente y ambientalmente aceptable de un recurso no renovable
A relevant issue for accurate phosphorus fertilization management is to estimate phytoavailable phosphorus (P), which is defined as the amount of P present in soil that can be used by plants in successive crops until evident P deficiency symptoms appear in crop. It can be supposed that there is a …