Results 61 to 70 of about 2,894,486 (143)

Phosphorus forms of the surface sediment in the Iranian coast of the Southern Caspian Sea

open access: yesCaspian Journal of Environmental Sciences, 2015
Sediments from the Southern Caspian Sea, located in Iranian coast were examined on the basis of P-fractionation (five forms of phosphorus) by a sequential extraction scheme.
Nasrollahzadeh Saravi, H.   +2 more
doaj  

The Significance of Resorption During Anoxic Mobilization of Phosphorus [PDF]

open access: yes, 2009
Phosphorus has a fundamental role in the regulation of biotic cycles in both aquatic and terrestrial environments. Phosphorus is in fact the limiting nutrient for plants in the majority of the cases.
Scudiero , Elia
core  

Internal Phosphorus Loading in Spring Lake: Year 1 [PDF]

open access: yes, 2003
The rate of phosphorus release from sediments, and the degree to which alum reduces phosphorus release from sediments, was investigated in Spring Lake during the summer of 2003.
Steinman, Dr. Alan, Rediske, Dr. Rick
core  

Organic Phosphorus Fractions in Relation to Soil Aggregate Fractions of Black Soil

open access: yesAgronomy
Knowledge of long-term phosphorus behavior is essential to improve soil structure, nutrient supply potential, and the sustainability of cropping systems.
Stanko Milić   +7 more
doaj   +1 more source

Internal Phosphorus Loading in Spring Lake: Year 2 [PDF]

open access: yes, 2004
Experimental and desktop studies were conducted during 2004 to better understand the factors affecting internal phosphorus (P) loading in Spring Lake, Michigan.
Steinman, Dr. Alan   +2 more
core  

Forms of newly retained phosphorus in mineral soils

open access: yesAgricultural and Food Science, 1964
The distribution of soluble phosphate in various fractions of soil phosphorus was studied by treating 1 g-samples of 180 mineral soils with 50 ml of a KH2PO4- solution containing P 5 mg/l for 24 hours, and carrying out the fractionation by the method of ...
Armi Kaila
doaj  

Response of carbon, nitrogen, and phosphorus in leaves of different life forms to altitude and soil factors in Tianshan wild fruit forest

open access: yesFrontiers in Ecology and Evolution
IntroductionThe ecological stoichiometric ratio of carbon, nitrogen, and phosphorus is an important index to understand the utilization and distribution of plant nutrients.MethodTo explore how leaf carbon, nitrogen, and phosphorus contents, along with ...
Xiande Jia   +9 more
doaj   +1 more source

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