Studies of Methods for Measuring Forms of Available Soil Nitrogen

Hunter, Albert S. and Carter, David L. (1965) Studies of Methods for Measuring Forms of Available Soil Nitrogen. Soil Science. 100(2):112-117.

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Abstract

In modern agriculture, crop growth is more
often limited by N than by any other nutrient
element. Despite this, there is as yet no method
for testing soils for N available to a crop that
is generally considered to be satisfactory. Several
attempts have been made to develop soil tests
for evaluating N fertilizer needs under specific
field conditions. Commonly, the efficacy of these
tests has been evaluated from data on crop
yield responses to applied N fertilizer. Few if
any attempts have been made to evaluate this
efficacy from measurements of the contributions
of indigenous soil N to the N nutrition of plants.

Item Type:	Article
NWISRL Publication Number:	0034
Subjects:	Soil > Chemistry > Nitrogen Research methodology Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:51
Last Modified:	15 Mar 2017 22:50
Item ID:	300
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/300