Principles and practice of agricultural analysis. Volume 1 (of 3), SoilsNote 281 — PART SEVENTH. THE ORIGIN AND ESTIMATION OF OXIDIZED NITROGEN IN SOILS, RAIN AND DRAINAGE WATERS.Reading editionJahresbericht der Agricultur Chemie, 1881, S. 43.◇Copy noteReturn to PART SEVENTH. THE ORIGIN AND ESTIMATION OF OXIDIZED NITROGEN IN SOILS, RAIN AND DRAINAGE WATERS.