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Particle Size Effects on Stockpiling and Spreading Agricultural Limestone
Author(s) -
Alley M. M.,
McCart G. D.,
Wolf D. D.,
Smith E. S.
Publication year - 1980
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1980.03615995004400020050x
Subject(s) - sieve (category theory) , particle size , particle (ecology) , bulk density , wire mesh , particle density , moisture , environmental science , soil science , mineralogy , materials science , geology , composite material , soil water , mathematics , physics , plasma , paleontology , oceanography , combinatorics , quantum mechanics
Stockpiling of agricultural limestone is a necessity in many agricultural regions due to transportation and production limitations. Particle size influence on stockpiling and spreading ground limestone must be quantified in order to produce a material that is effective in neutralizing soil acidity and can be uniformly spread after weather‐exposed storage. Effects of particle size on bulk density, percent moisture, and spread pattern uniformity by a commercial twin‐spinner bulk spreader were measured. Calcitic and dolomitic limestones with >60% passing a 100‐mesh (150 µm) sieve bridged in the spreader body and resulted in uneven flow to the spreader spinners. Handling problems were not encountered with materials having <55% passing a 100‐mesh sieve. Ground limestones with particle size distributions of 85 to 88, 48 to 61, and 39 to 56% passing 20‐ (850 µm), 60‐ (250 µm), and 100‐mesh sieves, respectively, were evenly spread after outdoor storage. Bulk densities ranged from 1.34 to 1.53 g/cm 3 while moisture contents varied from 0.7 to 6.0%.