Results 71 to 80 of about 23,723 (227)

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa   +5 more
wiley   +1 more source

Phosphorus adsorption and release dynamics in calcareous soil as affected by humic and fulvic acids

open access: yesJournal of Degraded and Mining Lands Management
Humic and fulvic acids play a crucial role in enhancing phosphorus retention in calcareous soils. These organic acids increase phosphorus fixation on soil surfaces, thereby strengthening its binding and modifying its availability in the soil solution ...
Aswad H. Aswad   +3 more
doaj   +1 more source

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor ‘Dochna’) by reducing salinity and increasing nutrient levels in coastal saline–alkaline soil

open access: yesFrontiers in Plant Science, 2023
IntroductionIn coastal saline lands, organic matter is scarce and saline stress is high. Exploring the promotion effect of intervention with organic acid from biological materials on soil improvement and thus forage output and determining the related ...
Ruixue Yang   +5 more
doaj   +1 more source

Sorption and fractionation of dissolved organic matter and associated phosphorus in agricultural soil [PDF]

open access: yes, 2007
Molibility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from oils to surface waters. To study the sorption an mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM ...
Abrahamsen   +52 more
core   +1 more source

Hurdles to overcome to achieve biostimulant‐driven, low chemical input crop production

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Crop production requires considerable chemical inputs that result in significant greenhouse gas emissions and other environmental costs. Biostimulants are natural agents, such as microorganisms or seaweed, applied to plants and soil to stimulate plant growth and reduce chemical inputs. Biostimulant use is rapidly increasing globally, but hurdles remain,
Wolfram Buss   +6 more
wiley   +1 more source

Effect of potassium fulvate on continuous tobacco cropping soils and crop growth

open access: yesFrontiers in Plant Science
Long-term continuous cropping of tobacco causes dysbiosis of soil microbial communities, the imbalance of soil nutrients, and the increase of pathogenic bacteria, which will slow the growth and development of tobacco plants, reduce the production quality,
Yingle Jiao   +11 more
doaj   +1 more source

Adsorption-Reduction Behavior of Cr(VI) by Ferrihydrite-Fulvic Acid Complexes with Different C/Fe Mole Ratios

open access: yesAdsorption Science & Technology, 2023
Ferrihydrite and fulvic acid are prevalent components of soils and can significantly influence the environmental behavior of Cr(VI) in these matrices.
Yangyang Zhang   +4 more
doaj   +1 more source

Impacts of epigeic, anecic and endogeic earthworms on metal and metalloid mobility and availability [PDF]

open access: yes, 2011
The introduction of earthworms into soils contaminated with metals and metalloids has been suggested to aid restoration practices. Eisenia veneta (epigeic), Lumbricus terrestris (anecic) and Allolobophora chlorotica (endogeic) earthworms were ...
Charnock, John   +5 more
core   +2 more sources

Plant biostimulants and their potential role in achieving the United Nations sustainable development goals

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Plant biostimulants are substances that are obtained from a variety of sources and are applied in minute quantities to enhance plant growth and vigor. In this review we detail how the use of plant biostimulants may contribute to efforts to achieving a number of the UN Sustainable Development Goals.
Patrick Quille   +3 more
wiley   +1 more source

Spectroscopic characterization of DOM and the nitrogen removal mechanism during wastewater reclamation plant. [PDF]

open access: yesPLoS ONE, 2017
The performance of the Sha-he wastewater reclamation plant was evaluated in this study. To remove residual nitrogen after Anaerobic-Anoxic-Oxic (A2O) treatment, three multistage Anoxic-Oxic (A/O) were added to investigate the nitrogen removal efficiency ...
Lei Wang   +12 more
doaj   +1 more source

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