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Hydraulic Device for Transect Sampling Soil
Author(s) -
Janssen K. A.,
Havlin J. L.,
Horstick E. H.
Publication year - 1998
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/sssaj1998.03615995006200020027x
Subject(s) - loam , transect , environmental science , sampling (signal processing) , soil water , tillage , soil science , hydrology (agriculture) , geology , geotechnical engineering , agronomy , engineering , oceanography , filter (signal processing) , biology , electrical engineering
A soil sampler capable of hydraulically coring, extracting, and sectioning rectangular columns of soil was constructed. The purpose was to facilitate our transect sampling of P in banded P and other nonuniform P‐fertilized soils. The soil sampler was constructed to attach to a tractor's three‐point hitch and to operate using the tractor's hydraulic system. The sampler consisted of a primary and secondary frame, two hydraulic cylinders, a rectangular‐shaped box corer, and a grid divider with press plate. The soil sampler performed well with our silt loam, claypan soil. Computer isoline maps of the concentrations of P in the soil cores we collected showed a wide diversity of distributions of P. Knowing the patterns of P and other nutrient distributions that result from different tillage and fertilization practices will be helpful for studying fertilizer‐placement effects on crops, and for formulating producer soil‐sampling strategies.