Zobrazeno 1 - 10
of 19
pro vyhledávání: '"J. B. Sisson"'
Publikováno v:
Agronomy Journal. 98:637-643
Annual row crop production on the naturally occurring claypan soils of the eastern Great Plains may require field operations during somewhat wet conditions and this potentially results in soil compaction by the commonly-used, heavy-weight tractors an
Publikováno v:
Vadose Zone Journal. 3:560-569
Publikováno v:
Vadose Zone Journal. 3:183-189
Autor:
J. B. Sisson, G. W. Gee, J. M. Hubbell, W. L. Bratton, J. C. Ritter, A. L. Ward, T. G. Caldwell
Publikováno v:
Vadose Zone Journal. 1:310-315
Autor:
Todd G. Caldwell, Anderson L. Ward, Joel M. Hubbell, Glendon W. Gee, J. C. Ritter, W. L. Bratton, J. B. Sisson
Publikováno v:
Vadose Zone Journal. 1:310-315
Soil water pressures, measured over space and time, are needed to predict the direction of water flow and chemical transport in the vadose zone. Advanced tensiometers (ATs), which utilize a water-filled porous cup connected directly to a pressure tra
Publikováno v:
Communications in Soil Science and Plant Analysis. 29:1177-1182
An electronically‐controlled, portable, cone penetrometer was designed, built, and tested. The penetrometer was driven electrically through a linear actuator. Cone position was sensed by a 10‐turn potentiometer, and force was sensed with an elect
Autor:
J. M. Hubbell, J. B. Sisson
Publikováno v:
Soil Science. 163:271-277
Tensiometers are required for measuring soil-water potential at depths greater than several meters to quantify the direction and rate of soil-water movement. This paper describes a permanently installed tensiometer (advanced tensiometer) designed to
Publikováno v:
Scopus-Elsevier
Spatial variability of N mineralization represents a potential problem in predicting the quantity of N mineralized under field conditions. An understanding of mineralization variability is needed if prediction of potential mineralization is to be inc
Autor:
J. B. Sisson, J. M. Hubbell
Publikováno v:
Soil Science. 161:376-381
Quantifying the direction and rate of soil water movement beneath landfill disposal areas requires tensiometers capable of monitoring soil water potentials from one to several hundred meters below land surface. This paper describes a new way to use t
Autor:
J. B. Sisson, D. S. Burden, Peter J. Shouse, H. M. Selim, M. Th. van Genuchten, W. B. Russell
Publikováno v:
Soil Science. 159:1-12
Soil water characteristic curves are a prerequisite for quantifying the field soil water balance and predicting water flow in unsaturated soils. The spatial variation of water retention in the root zone influences water availability for plants, evapo