Results 31 to 40 of about 2,894,486 (143)

A relationship Between Phosphorous Images and some chemical properties in the Middle and the South of Iraq [PDF]

Al-Qadisiyah Journal For Agriculture Sciences, 2020
Soil samples were collected from calcareous soil fertilized with phosphate fertilizers for many years from different regions of central and southern Iraq and from two depths  surface 0-30 and subsurface 30-60 cm.
Elaf Ali Makttoof, Jabbar Kadhium Kassim, Kahraman Hussein, Habeeb Aikhuzaia   +3 more
doaj   +1 more source

Geoquímica de fósforo como indicadora da qualidade ambiental e dos processos estuarinos do Rio Jaguaribe - costa nordeste oriental brasileira Phosphorus geochemistry as a proxy of environmental estuarine processes at the Jaguaribe River, Northeastern Brazil

Química Nova, 2007
Phosphorus geochemistry as a proxy of environmental estuarine processes at the Jaguaribe River, Northeastern Brazil. Sedimentation of different phosphorus geochemical fractions can characterize the natural or anthropogenic processes dominant in the ...
Rozane Valente Marins, Francisco José de Paula Filho, Carlos Artur Sobreira Rocha   +2 more
doaj   +1 more source

Phosphorus Distribution within Aggregates in Long-Term Fertilized Black Soil: Regulatory Mechanisms of Soil Organic Matter and pH as Key Impact Factors

Agronomy
Understanding soil phosphorus (P) distribution and its key drivers is fundamental for sustainable P management. In this study, a 21-year fertilization experiment on black soil was carried out, setting up five fertilization treatments: unfertilized ...
Naiyu Zhang, Qiong Wang, Yanhua Chen, Shuxiang Zhang, Xianmei Zhang, Gu Feng, Hongjun Gao, Chang Peng, Ping Zhu   +8 more
doaj   +1 more source

MONITORING OF PHOSPHORUS CONTENT IN “WATER-PARTICULATE MATERIALS-BOTTOM SEDIMENTS SYSTEM” FOR RIVER PRUT [PDF]

Aerul şi Apa: Componente ale Mediului, 2011
Monitoring of phosphorus content in “water-particulatematerials-bottom sediments system” for river Prut. Seasonal and spatialdynamics of phosphorus forms in water, particulate materials and bottomsediments of river Prut was elucidated.
VASILE RUSU, LARISA POSTOLACHI
doaj  

Effect of Reclaiming Duration and Land Usage on Organic Carbon and Phosphorus in Coastal Saline Soils in Eastern Zhejiang Province

Guan'gai paishui xuebao, 2023
【Objective】 Reclaiming the saline coastal soils in eastern China is crucial for ensuring food security. Given the significance of soil carbon in soil quality, this paper investigates the change in soil organic carbon and phosphorus in the soil following ...
WU Shaofu, SHI Qiwei, GU Haonan, ZHANG Mingkui   +3 more
doaj   +1 more source

The status of phosphorus of a calcareous flush at Bakethin Reservoir, Northumberland [PDF]

, 1993
In order to assess the status of phosphorus of a calcareous flush at Bakethin reservoir, Northumberland, chemical analyses of the concentration of phosphorus in the water and the phosphatase activity of cyanobacteria, Nostoc and Rivularia, as well as the
Bresnan, Eileen
core  

Phosphorus leaching as influenced by animal manure and catch crops [PDF]

, 2013
Leaching of phosphorus (P) constitutes an important part of P losses from Swedish agricultural soils. Phosphorus leaching is complex and is influenced by many factors, from source and mobilisation to transport pathways, as well as agricultural management
Liu, Jian
core   +1 more source

Phosphorus biogeochemistry and models in estuaries: case study of the Southampton Water system

, 2000
Various factors may increase the supply of organic matter content (eutrophication status) of estuarine and coastal systems. The most common cause of eutrophication is considered to be nutrient enrichment.
Xiong, J.
core   +1 more source

DISTRIBUTION OF PHOSPHORUS FORMS IN “WATER-PARTICULATE MATERIALS-BOTTOM SEDIMENTS” SYSTEM OF THE PRUT RIVER DURING 2009-2012 YEARS [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
The supplemented scheme for determination of phosphorus forms in natural waters was tested for the River Prut.
Larisa Postolachi, Vasile Rusu, Tudor Lupascu   +2 more
doaj  

Stoichiometric characteristics of woody plant leaves and responses to climate and soil factors in China.

PLoS ONE, 2023
The main research content of the field of ecological stoichiometry is the energy of various chemical elements and the interaction between organisms and the environment throughout ecological processes.
Xiangguang Duan
doaj   +1 more source