Results 251 to 260 of about 1,047,460 (310)
Some of the next articles are maybe not open access.
1997
Soils are often extremely heterogeneous in their structure and chemical composition. A soil not only consists of solid matter of mineral or organic origin but also contains numerous pores, which altogether form a cavity system that is connected to the atmosphere.
del Castilho, P., Breder, R.
openaire +2 more sources
Soils are often extremely heterogeneous in their structure and chemical composition. A soil not only consists of solid matter of mineral or organic origin but also contains numerous pores, which altogether form a cavity system that is connected to the atmosphere.
del Castilho, P., Breder, R.
openaire +2 more sources
2009
The characteristics of the soil solution in the root environment in the greenhouse industry differ much from those for field grown crops. This is caused firstly by the growing conditions in the greenhouse, which strongly differ from those in the field and secondly the function attributed to the soil solution with respect to plant development.
Sonneveld, C., Voogt, W.
openaire +2 more sources
The characteristics of the soil solution in the root environment in the greenhouse industry differ much from those for field grown crops. This is caused firstly by the growing conditions in the greenhouse, which strongly differ from those in the field and secondly the function attributed to the soil solution with respect to plant development.
Sonneveld, C., Voogt, W.
openaire +2 more sources
Soil Colloids and the Soil Solution
1991In the companion volume to this book (‘Soil Colloids and Their Associations in Aggregates’; M.F. De Boodt, M.H.B. Hayes, and A. Herbillon, eds.; Plenum Press, New York and London, 1990), attention was focused on the composition and structures of the colloidal components of soils and on the associations in aggregates between these and the other ...
Hayes, M.H.B., Bolt, G.H.
openaire +2 more sources
Copper activity in soil solutions of calcareous soils
Environmental Pollution, 2007Copper partitioning was studied in seven calcareous soils at moisture content corresponding to 1.2 times the field moisture content (soil water potential 7.84 J kg(-1)). Copper retention was accompanied by the release in soil solution of Ca(2+), Mg(2+), Na(+), and H(+), and the total amount of these cations released was 0.8 to 1.09 times the amount of ...
Alexander A, Ponizovsky +2 more
openaire +2 more sources
Communications in Soil Science and Plant Analysis, 1995
Abstract An understanding of how soil solution ionic strength (Is) and major cation activities influence crop growth is often limited by the extensive measurements required to characterize ionic composition and subsequent speciation exercises. Easily measured solution and soil attributes need to be identified that can predict these important solution ...
J. K. Jallah, T. J. Smyth
openaire +1 more source
Abstract An understanding of how soil solution ionic strength (Is) and major cation activities influence crop growth is often limited by the extensive measurements required to characterize ionic composition and subsequent speciation exercises. Easily measured solution and soil attributes need to be identified that can predict these important solution ...
J. K. Jallah, T. J. Smyth
openaire +1 more source
Silica Source in Soil Solutions
Science, 1964Heat of solution of silica in soil saturation pastes was calculated from silica solubilities and agreed with values for solid silicic acid. The immediate source of silica in soil solutions apparently is solid silicic acid. The solution of silica from soils exhibited three stages of constant silica solubility.
R O, Gifford, D M, Frugoli
openaire +2 more sources
Soil Solid-Phase Controls Lead Activity in Soil Solution
Journal of Environment Quality, 2002ABSTRACTLead pollution of the environment is synonymous with civilization. It has no known biological function, and is naturally present in soil, but its presence in food crops is deemed undesirable. The concern regarding Pb is mostly due to chronic human and animal health effects, rather then phytotoxicity.
S H, Badawy +4 more
openaire +2 more sources
Civil Engineering Magazine, 2019
Because of highly permeable soils and high water tables, deep foundations and basements in southeast Florida have been virtually impossible, limiting the excavation depths in cities like Miami and leading to the use of valuable aboveground real estate for parking.
Alec Bloem, Nick Turus
openaire +1 more source
Because of highly permeable soils and high water tables, deep foundations and basements in southeast Florida have been virtually impossible, limiting the excavation depths in cities like Miami and leading to the use of valuable aboveground real estate for parking.
Alec Bloem, Nick Turus
openaire +1 more source
1986
To understand what changes in the soil may be brought about by a change in the level of atmospheric acid deposition, it is useful to develop at least a conceptual model of the major system components and the processes by which they interact. The interaction between the solid and solution phases in the soil is critical in determining the nature of these
J. O. Reuss, D. W. Johnson
openaire +1 more source
To understand what changes in the soil may be brought about by a change in the level of atmospheric acid deposition, it is useful to develop at least a conceptual model of the major system components and the processes by which they interact. The interaction between the solid and solution phases in the soil is critical in determining the nature of these
J. O. Reuss, D. W. Johnson
openaire +1 more source
Degradation kinetics of ptaquiloside in soil and soil solution
Environmental Toxicology and Chemistry, 2007AbstractPtaquiloside (PTA) is a carcinogenic norsesquiterpene glycoside produced in bracken (Pteridium aquilinum (L.) Kuhn), a widespread, aggressive weed. Transfer of PTA to soil and soil solution eventually may contaminate groundwater and surface water.
Ovesen, Rikke Gleerup +2 more
openaire +3 more sources