Results 51 to 60 of about 1,534 (211)

CARACTERIZACIÓN DE ÁCIDOS HÚMICOS Y FÚLVICOS DE UN MOLLISOL BAJO DOS COBERTURAS DIFERENTES

Revista Colombiana de Química, 2008
Para evaluar y comparar algunas propiedades de los ácidos húmicos (AH) y fúlvicos (AF) como el grado de condensación y polimerización, el contenido total de carbono, hidrógeno y nitrógeno, y sus constantes
Ingris Zamboni, María Inés Ballesteros, Adriana Zamudio   +2 more
doaj  

Definition of homogeneous fertility areas through factorial and geostatistical analysis

Boletín de Ciencias de la Tierra, 2016
In a flat lot of 4 ha, with dry warm climate and Mollisols were determined the bulk density, pH and content of sand, silt, clay, organic matter, Ca, Mg, K and P, in the first 150mm of soil, doing a sampling in a semi-regular grid with cell size of 25 x ...
Daniel Francisco Jaramillo Jaramillo
doaj   +1 more source

Is mineral nutrient concentration of soybean, maize, and wheat grain affected by cropping sequence and agronomic management?

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Producers in the Argentine Pampas often fail to fully replenish the nutrients extracted by crops, leading to unsustainable soil fertility management. The objectives of this study were to (i) evaluate grain yield, mineral nutrient concentration, and extraction for maize (Zea mays L.), wheat (Triticum aestivum L.), and soybean (Glycine max L ...
D. E. Becheran, F. H. Miguez, F. E. Miguez, A. Peper, B. Benedit   +4 more
wiley   +1 more source

Seed mixes of intermediate grass:forb ratio create vegetation of greater ecosystem service provision in restorations

Ecological Applications, Volume 36, Issue 6, September 2026.
Abstract Restoring pollination services using forb‐dense seed mixes is seen as a possible way to mitigate global pollinator decline. Research is needed on whether this management factor impacts other ecosystem services that could be influenced by greater emphasis on forbs than grasses in seed mixes.
Nathan Soley, Simone Schmidt, Brian Wilsey   +2 more
wiley   +1 more source

Increase in soil organic carbon in a Mollisol following simulated initial development from parent material

, 2017
Better understanding of the effects of land use and agricultural management on organic carbon (C) sequestration is needed to optimize the restoration of fertility in degraded soil, maintain agricultural sustainability and mitigate emissions of greenhouse
韩晓增, M. You, N. Li, W. Zou, X. Han and M. Burger   +1 more
core   +1 more source

Advancing our understanding of soil particulate organic matter dynamics

Soil Science Society of America Journal, Volume 90, Issue 5, September/October 2026.
Abstract This study aimed to characterize the diversity and complexity of soil particulate organic matter (POM) across California agricultural fields. By identifying the chemical signature of this small but significant organic matter fraction, researchers can build a deeper understanding of how it contributes to nutrient and carbon cycling in ...
Suzette N. T. Santiago, Francisco Calderón, Sanjai Parikh, Daniel J. Geisseler   +3 more
wiley   +1 more source

Limited evidence for soil enzyme activities mediating C:N discrepancies between microbial biomass and organic matter in year 145 of a maize‐based agroecosystem experiment

Soil Science Society of America Journal, Volume 90, Issue 5, September/October 2026.
Abstract Soil microbial biomass (MB) generally exhibits a narrower C:N than soil organic matter (SOM), creating a stoichiometric discrepancy hypothesized to be reconciled in part by C‐ and N‐acquiring enzyme activities. We used soils from an at‐equilibrium long‐term experiment to evaluate the degree to which MB C:N plasticity and enzyme activities ...
Tianze Song, Ezra Moses, Rosa Elena Ibarra López, Chammi Attanayake, Taylor B. Berkshire‐Akers, Andrew John Margenot   +5 more
wiley   +1 more source

Spectroscopic techniques combined with chemometrics to study organic matter in tropical soils with different degrees of pedogenetic evolution

, 2022
Understanding of the organomineral interactions in soil can elucidate the humic substances (HS) formation and the humification process. This study aimed to structurally characterize the humic acids (HA) formed in tropical soils with different pedogenesis
Danielle de Oliveira França (12703424), Orlando Carlos Huertas Tavares (12703427), Octávio Vioratti Telles de Moura (12703418), Marcos Gervasio Pereira (4658470), Tadeu Augusto van Tol de Castro (12703421), Cristiane Figueira da Silva (4703260), Andrés Calderín García (9413975)   +6 more
core   +1 more source

Elevated moisture stimulates carbon loss from mineral soils by releasing protected organic matter

Nature Communications, 2017
The effect of soil moisture on microbial activity and soil carbon storage remains unclear. Here, via Mollisol incubation experiments, the authors show elevated soil moisture can accelerate total carbon loss by facilitating microbial access to previously ...
Wenjuan Huang, Steven J. Hall
doaj   +1 more source

Soil carbon stocks, microbial stoichiometry, and enzyme activities across a 54‐year chronosequence of continuous maize versus maize–soybean rotations

Soil Science Society of America Journal, Volume 90, Issue 5, September/October 2026.
Abstract Crop rotational diversity is hypothesized to enhance soil organic carbon (SOC) surface stocks, yet the long‐term SOC response to maize (Zea mays L.)–soybean [Glycine max (L.) Merr.] (MS) relative to continuous maize (MM) is inconsistent despite the greater residue C inputs in MM.
Pei‐Chen Lee, Connor N. Sible, Frederick E. Below, Maria B. Villamil, Andrew J. Margenot   +4 more
wiley   +1 more source