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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: April Leytem
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

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