Particle size determines the efficiency of calcitic limestone in amending acidic soil

A field experiment was conducted using 6 particle size segregations of calcitic limestone covering a range of mean diameters from 3 mm to 0.005 mm. These products were applied at rates of 2.5, 5 and 10 t per ha. No minimum particle size for maximum effectiveness was identified. Throughout the range...

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Bibliographic Details
Published inAustralian journal of agricultural research Vol. 43; no. 5
Main Authors Scott, B.J, Conyers, M.K, Fisher, R, Lill, W. (New South Wales Agriculture, Wagga Wagga (Australia). Agricultural Research Inst.)
Format Journal Article
LanguageEnglish
Published 1992
Subjects
CALCAIRE
CALIZA
CHAULAGE
ENCALADO
GROSSEUR DES PARTICULES
SOL ACIDE
SUELO ACIDO
TAMANO DE LA PARTICULA
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Summary:A field experiment was conducted using 6 particle size segregations of calcitic limestone covering a range of mean diameters from 3 mm to 0.005 mm. These products were applied at rates of 2.5, 5 and 10 t per ha. No minimum particle size for maximum effectiveness was identified. Throughout the range of particle sizes evaluated, progressively finer particles produced larger increases in pH and exchangeable Ca. Wheat yield was related to soil pH. Changes in soil pH and exchangeable Ca between 6 months and 3 years after lime application were small compared to the changes in the first 6 months. Fine lime products should be preferred in practice, subject to cost considerations and handling difficulties.
Bibliography:9201193
P35
F04
ISSN:0004-9409
DOI:10.1071/AR9921175