The nature of phosphorus in calcareous soils

Leytem, A.B. and Mikkelsen, R.L. (2005) The nature of phosphorus in calcareous soils. Better Crops. 89(2):11-13.

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Abstract

Calcareous soils (containing free lime) are common in many arid and semi-arid regions
of North America and occur as inclusions in more humid regions. Phosphorus
(P) is very reactive with lime. Following fertilizer application, P undergoes a series of
reactions that gradually reduce its solubility. In most calcareous soils, there does
not appear to be a strong agronomic advantage of any particular P source when
managed properly. Organic matter can inhibit P fixation reactions to some extent.
Some fertilizer recommendations call for additional P to be added when the soil
contains high amounts of free lime.

Item Type:	Article
NWISRL Publication Number:	1159
Subjects:	Soil > Calcareous soil Soil > Chemistry > Phosphorous Mass Import - autoclassified (may be erroneous)
Depositing User:	Users 5 not found.
Date Deposited:	20 Nov 2010 21:49
Last Modified:	02 Nov 2016 18:52
Item ID:	14
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/14