Baseline Soil Nitrogen Mineralization: Measurement and Interpretation (2020) EM9281

This Extension publication reviews baseline N mineralization which refers to plant-available nitrogen release that accompanies the decomposition of soil organic matter. The rate of baseline soil N mineralization is governed by the quantity and quality of soil organic matter, as modified by soil moisture and temperature. Baseline soil N mineralization typically supplies about half of crop N uptake. Soils that have been heavily manured for many years or are naturally very high in soil organic matter can supply most of the N required for crop production. Several laboratory tests for N mineralization are available, but most are useful only as measures of relative changes in soil health, not for adjusting N fertilizer rates.

Link: https://catalog.extension.oregonstate.edu/em928

tplessin
Author: tplessin

Leave a Reply

%d bloggers like this: