Results 61 to 70 of about 56,488 (276)

Plant roots and deep-banded nutrient-rich amendments influence aggregation and dispersion in a dispersive clay subsoil

open access: yes, 2020
The ameliorating effect of deep banding of nutrient-rich organic amendments, termed subsoil manuring, on improving physical structure of sodic high-clay subsoils, has been often attributed to organic amendments per se.
Xiao-Juan Wang   +5 more
semanticscholar   +1 more source

Transformations of nitrogen at the interface between the topsoil and an impervious clay subsoil

open access: yes, 2004
Much work has been done on gaseous emissions and leaching of nitrogenous compounds from whole soil profiles and also from soil surface measurements which are assumed to be mainly due to topsoil activity.
Hatch, D. J.   +7 more
core   +1 more source

The German Soil Systematics and the Rationale Behind Its Revision

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background The German Soil Systematics is a pedogenetic classification based on the morphological expressions of pedogenic processes and has been developed over several stages since 1952. The system has successfully been in use for soil classification and soil survey for almost 70 years.
Einar Eberhardt   +3 more
wiley   +1 more source

Treated wastewater irrigation promotes the spread of antibiotic resistance into subsoil pore-water.

open access: yesEnvironment International, 2020
In the present study, we investigated the impact of treated wastewater (TWW) irrigation on the prevalence of antibiotic resistance genes (ARGs) in subsoil pore-water, a so-far under-appreciated matrix.
Ioannis D. Kampouris   +6 more
semanticscholar   +1 more source

Subsoil Acidity Amelioration for Improved Soil Productivity

open access: yes, 2023
Subsoil is the layer (stratum) of earth immediately below the surface soil (below 20 cm), consisting predominantly of minerals and leached materials such as iron and aluminium compounds.
Mathew , Akhila Merin, Rani B.
core   +1 more source

Organic Matter Quality and Microbial Activity in Soils Managed With Brachiaria Succession

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Although succession systems and brachiaria improve soil quality, gaps remain in microbial community dynamics, activity, and soil organic matter stocks. Methods The objective was to evaluate the carbon (C) and nitrogen (N) stocks of soil organic matter fractions and their distribution, molecular characterization, enzyme activity ...
Siro Paulo Moreira   +5 more
wiley   +1 more source

Microbial Community Dynamics in Soil Depth Profiles Over 120,000 Years of Ecosystem Development

open access: yesFrontiers in Microbiology, 2017
Along a long-term ecosystem development gradient, soil nutrient contents and mineralogical properties change, therefore probably altering soil microbial communities.
Stephanie Turner   +7 more
doaj   +1 more source

Organo-Mineral Interactions Are More Important for Organic Matter Retention in Subsoil Than Topsoil

open access: yesSoil Systems, 2020
Decomposing crop residues contribute to soil organic matter (SOM) accrual; however, the factors driving the fate of carbon (C) and nitrogen (N) in soil fractions are still largely unknown, especially the influence of soil mineralogy and autochthonous ...
Vincent Poirier   +5 more
semanticscholar   +1 more source

Experiments on scour holes in heterogeneous subsoil

open access: yes, 2017
This study is conducted to improve knowledge of scour holes in heterogeneous subsoil. A highly simplified situation is used for these experiments. An oval shaped hole was present in a concrete bed, from which sand can erode. So the scour hole was bounded
Stenfert, J.G. (Joost)
core   +1 more source

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser   +11 more
wiley   +1 more source

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