Bray-1 phosphorus extraction (Nothofagaceae)

Knowledge graph centered on Bray-1 phosphorus extraction (Nothofagaceae) with 17 nodes and 36 connections. Top connected: Elevation alters ecosystem properties across tempe, Bacteria, elevational gradients, species diversity, Holshof & Swenson trait sampling protocol.

Method synopsis

Standard Bray-1 extraction followed by automated molybdate colorimetry to quantify bioavailable phosphorus in soils.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Elevation alters ecosystem properties across temperate treelines globally (2017), Nature. Implementations in other papers (listed below) may differ.

1. Measure Bray-extractable phosphorus
   Bray-extractable P, a metric of bioavailable P, was measured from dry soil subsamples using Bray-1 solution (0.03 N NH₄F in 0.025 N HCl) and quantification by automated molybdate colorimetry. Because bulk density varied widely across the gradients, soil total and extractable N and P concentrations were represented on an area basis (for example, kg/ha) from volumetric soil cores taken from each plot.
   Quantities: Bray-1 solution (0.03 N NH₄F in 0.025 N HCl)Duration: During laboratory processing periodConditions: Dried and finely ground soil subsamples
   Equipment: automated molybdate colorimetry

Typical Equipment

• automated molybdate colorimetry

Output Measurements

• bioavailable phosphorus concentration

Papers Using This Protocol (1)

Species Studied With This Protocol