Results 51 to 60 of about 670,416 (147)

Surface phosphatase activities on roots of Pakistani wheat cultivars [PDF]

open access: yes, 1994
A study of the surface phosphatase activity of different wheat cuhivar roots was carried out, using two substrates, p-nitrophenyl phosphate (pNPP) and 4- methylumbellferyl phosphate (4-MUP), and different pH values ranging from 3 to 10.0.
Chandio, G. Mustafa
core  

Root traits and microbial community interactions in relation to phosphorus availability and acquisition, with particular reference to Brassica [PDF]

open access: yes, 2014
Brassicas are among the most widely grown and important crops worldwide. Phosphorus (P) is a key mineral element in the growth of all plants and is largely supplied as inorganic rock-phosphate, a dwindling resource, which is likely to be an increasingly ...
Teakle, Graham R.   +9 more
core   +1 more source

Unraveling iron oxides as abiotic catalysts of organic phosphorus recycling in soil and sediment matrices

open access: yesNature Communications
In biogeochemical phosphorus cycling, iron oxide minerals are acknowledged as strong adsorbents of inorganic and organic phosphorus. Dephosphorylation of organic phosphorus is attributed only to biological processes, but iron oxides could also catalyze ...
Jade J. Basinski   +8 more
doaj   +1 more source

Fractions of inorganic phosphorus in Finnish mineral soils

open access: yesAgricultural and Food Science, 1964
Inorganic phosphorus in 363 samples of Finnish mineral soils was fractionated by the procedure of CHANG and JACKSON. The average content of total inorganic phosphorus determined as the difference of the total phosphorus and organic phosphorus tended to ...
Armi Kaila
doaj  

Nutrient uptake, Quality traits and Yield of Groundnut as Influenced by Integrated Phosphorus Management

open access: yesInternational Journal of Bio-Resource and Stress Management, 2020
An experiment was conducted to study the integrated phosphorus management in groundnut (Arachis hypogaea L.) at Agronomy farm, S.K.N. College of Agriculture, Jobner (Rajasthan), having eleven phosphorus management treatments (Control, 100% RDF, 75% P ...
Rajbala Sharma   +3 more
doaj  

Seasonal cycling of phosphorus in the Southern Bight of the North Sea [PDF]

open access: yesBiogeosciences, 2005
We have investigated the seasonal cycle of nutrients, chlorophyll a, dissolved organic nitrogen (DON), and dissolved and particulate organic carbon (DOC and POC) for 10 stations in the Belgian coastal zone.
C. van der Zee, L. Chou
doaj  

Phosphorus and Sulfur Co‐Doped Cobaltous Oxide Synthesized by an Inorganic‐Salt‐Assisted Method: Reaction Mechanism and Electrocatalytic Application

open access: yes, 2020
Inorganic‐salt‐assisted non‐metallic heteroatom (phosphorus and sulphur) co‐doped cobaltous oxide (P/S‐CoO) has been reported. Potassium sulphate (K 2 SO 4 ) was used as inorganic source of sulphur (S), while triphenyl phosphine (PPh 3 ) was used as ...
Zhao, Huijun   +17 more
core   +1 more source

Characteristics and Release Risk of Phosphorus from Sediments in a Karst Canyon Reservoir, China

open access: yesApplied Sciences
With the continuous improvement of surface water environmental quality in China, sediment has gradually become the focus of research on internal pollution in reservoirs.
Liu-Ying Yang   +7 more
doaj   +1 more source

Recommendations for regulating phosphorus from livestock operations in Manitoba

open access: yes, 2019
The primary concern surrounding phosphorus in Manitoba is the eutrophication of waterways and water bodies and in particular, Lake Winnipeg. While there are many sources of phosphorus - natural and man-made, a particular concern exists related to the ...
The Manitoba Phosphorus Expert Committee
core  

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  

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