The role of organic matter and ammonium in producing high corn yields

1986 ◽  
pp. 29-54 ◽  
Author(s):  
S. R. Olsen
Keyword(s):  
Organic Matter

Role of Salts and Organic Matter on Boron Adsorption in Calcarious Soil from South of Iraq

2016 ◽  
Vol 29 (2) ◽  
pp. 514-522
Author(s):  
Mohsen N. Hoshan
Keyword(s):  
Organic Matter ◽  
South Of Iraq ◽  
Boron Adsorption

Role of Biological Oxidation and Organic Matter Solubilization in the Subsidence of Rifle Peat

1963 ◽  
Vol 27 (6) ◽  
pp. 666-668 ◽  
Author(s):  
M. H. B. Hayes ◽  
J. L. Mortensen
Keyword(s):  
Organic Matter ◽  
Biological Oxidation

T4-like Phages Reveal the Potential Role of Viruses in Soil Organic Matter Mineralization

2021 ◽  
Author(s):  
Xiaomeng Wei ◽  
Tida Ge ◽  
Chuanfa Wu ◽  
Shuang Wang ◽  
Kyle Mason-Jones ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Potential Role ◽  
Organic Matter Mineralization

scholarly journals DOM degradation by light and microbes along the Yukon River-coastal ocean continuum

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Brice K. Grunert ◽  
Maria Tzortziou ◽  
Patrick Neale ◽  
Alana Menendez ◽  
Peter Hernes
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Salinity Gradient ◽  
Coastal Ocean ◽  
Interactive Effects ◽  
The Arctic ◽  
Yukon River ◽  
Spring Freshet ◽  
Dom Composition

AbstractThe Arctic is experiencing rapid warming, resulting in fundamental shifts in hydrologic connectivity and carbon cycling. Dissolved organic matter (DOM) is a significant component of the Arctic and global carbon cycle, and significant perturbations to DOM cycling are expected with Arctic warming. The impact of photochemical and microbial degradation, and their interactive effects, on DOM composition and remineralization have been documented in Arctic soils and rivers. However, the role of microbes, sunlight and their interactions on Arctic DOM alteration and remineralization in the coastal ocean has not been considered, particularly during the spring freshet when DOM loads are high, photoexposure can be quite limited and residence time within river networks is low. Here, we collected DOM samples along a salinity gradient in the Yukon River delta, plume and coastal ocean during peak river discharge immediately after spring freshet and explored the role of UV exposure, microbial transformations and interactive effects on DOM quantity and composition. Our results show: (1) photochemical alteration of DOM significantly shifts processing pathways of terrestrial DOM, including increasing relative humification of DOM by microbes by > 10%; (2) microbes produce humic-like material that is not optically distinguishable from terrestrial humics; and (3) size-fractionation of the microbial community indicates a size-dependent role for DOM remineralization and humification of DOM observed through modeled PARAFAC components of fluorescent DOM, either through direct or community effects. Field observations indicate apparent conservative mixing along the salinity gradient; however, changing photochemical and microbial alteration of DOM with increasing salinity indicate changing DOM composition likely due to microbial activity. Finally, our findings show potential for rapid transformation of DOM in the coastal ocean from photochemical and microbial alteration, with microbes responsible for the majority of dissolved organic matter remineralization.

The role of extracellular organic matter on the cyanobacteria ultrafiltration process

2021 ◽  
Author(s):  
Huikai Liang ◽  
Xin Huang ◽  
Han Wang ◽  
Weiying Xu ◽  
Baoyou Shi
Keyword(s):  
Organic Matter ◽  
Extracellular Organic Matter ◽  
Ultrafiltration Process
Sign in / Sign up

Export Citation Format

Share Document