Showing papers in "Soil Science in 1964"
3,085 citations
1,234 citations
174 citations
TL;DR: The Argile Reference Record was created on 2004-09-07, modified on 2016-08-08 as mentioned in this paper, and it was used for mining and geology research in the 1990s.
Abstract: Keywords: Mineralogie ; Geologie ; Argile Reference Record created on 2004-09-07, modified on 2016-08-08
138 citations
112 citations
TL;DR: In this article, the authors describe the mining of coal and nitrogen in some New Zealand AllopHANIC Soils and show that the resulting coal seams are rich in nutrients.
Abstract: MINERALIZATION OF CARBON AND NITROGEN IN SOME NEW ZEALAND ALLOPHANIC SOILS F. BROADBENT;R. JACKMAN;JOY McNICOLL; Soil Science
TL;DR: In this paper, an infiltration method was used to determine the relationship between hydraulic conductivity and moisture content for a slate dust, and the necessary unsaturated conditions of the porous material were obtained either by maintaining the surface at a suction through a porous membrane or by maintaining an air pressure greater than atmospheric pressure in a dry material with the surface kept saturated.
Abstract: An infiltration method was used to determine the relationship between hydraulic conductivity and moisture content for a slate dust The necessary unsaturated conditions of the porous material were obtained either by maintaining the surface at a suction through a porous membrane or by maintaining an air pressure greater than atmospheric pressure in a dry material with the surface kept saturated Measurements (which pertain to the wetting material) for a slate dust are compared with those from other methods Details are described of the experimental procedure for the suction method and the pressure method The moisture profiles furing the experiment are detailed The results are discussed
TL;DR: In this article, the authors examined the character of the contraction of an undistrubed field soil, and models for three-dimensional and undimensional contraction were set up from which changes in bulk density with moisture content could be predicted and the predictions compared with measured values.
Abstract: In this examination of the character of the contraction of an undistrubed field soil, models for three-dimensional and undimensional contraction were set up from which changes in bulk density with moisture content could be predicted and the predictions compared with measured values. Comparison of the changes predicted by the models with the changes measured in a field soil in the 0- to 3-inch and 6- to 9-inch layers, revealed that the swelling for soils wetter than wilting is normal, and that within this moisture range two types of volume change occur, a unidimensional phase and a three-dimensional equidimensional phase, which are separated by a fairly distinct moisture point. There are no stable voids in the soil which loose water in either phase, and the soil has no field capacity as normally defined. The theory is discussed and the assumptions made are set forth. Details are given of the experimental design and methods, and the results are presented and discussed.