Results 21 to 30 of about 6,670,796 (349)
Phosphorus nutrition of ectomycorrhizal and arbuscular mycorrhizal tree seedlings from a lowland tropical rain forest in Korup National Park, Cameroon [PDF]
, 1998 The relationship between mycorrhizal colonisation and phosphorus acquired by seedlings of the arbuscular mycorrhizal tree Oubanguia alata Bak f. (Scytopetalaceae) and the ectomycorrhizal tree Tetraberlinia moreliana Aubr.
Alexander, I.J. +2 more
core +1 more source
Guangdong nongye kexue, 2022 【Objective】The study was conducted to explore the effects of humic acid and biomass carbon on soil phosphorus activation and inorganic phosphorus form transformation with a view to providing theoretical basis for the research and development of ...
Yunting LIU +5 more
doaj +1 more source
Journal of Agricultural and Food Chemistry, 2020 Phosphorus (P) is increasingly being applied in concentrated bands to satisfy plant nutrient requirements. To quantify changes in plant-available P in the fertosphere of highly concentrated fertilizer bands, we conducted a soil-fertilizer incubation ...
G. Meyer +6 more
semanticscholar +1 more source
Agriculture, 2019 Occasionally, the classic understanding of the effect of pH on P uptake from soils is questioned through the claim that maximum P uptake occurs at a pH much lower than 6.5−7.
Chad J. Penn, James J. Camberato
doaj +1 more source
Organic acids promote phosphorus release from Mollisols with different organic matter contents
Soil and Water Research, 2021 Organic acids could improve the phosphorus (P) availability through enhancing the release of inorganic phosphorus (Pi) in the soil. However, the effects of organic acids on the Pi release are still poorly understood, especially from soils with different ...
Xiaoyan Yang +4 more
doaj +1 more source
Processes Governing Phosphorus Availability in Temperate Soils [PDF]
Journal of Environmental Quality, 2000 AbstractPhosphorus losses from agricultural soil to water bodies are mainly related to the excessive accumulation of available P in soil as a result of long‐term inputs of fertilizer P. Since P is a nonrenewable resource, there is a need to develop agricultural systems based on maximum P use efficiency with minimal adverse environmental impacts.
Frossard, E +4 more
openaire +3 more sources
Availability of Phosphorus in Bone Meal
Journal of AOAC INTERNATIONAL, 1989 Abstract Two commercially available bone meal products (grades 0-12-0 and 6-12-0) were examined. Samples were prepared according to AOAC method 2.007, and total and available phosphorus contents were determined. Portions of these preparations were reground to pass through successively smaller sieves, and subsequent analyses indicated the
A M, Baker, J R, Trimm, F J, Sikora
openaire +2 more sources
Santa Giusta Lagoon (Sardinia): phytoplankton and nutrients before and after waste water diversion [PDF]
, 2001 The purpose of this paper was to assess the effect of the diversion of waste water on the trophic status of the Stagno di Santa Giusta, a hypertrophic lagoon on the centre-western coast of Sardinia.
Fiocca, Fatima +3 more
core +2 more sources
Commercial fire-retarded PET formulations - relationship between thermal degradation behaviour and fire-retardant action [PDF]
, 2007 Many types of fire-retardants are used in poly(ethylene terephthalate), PET, formulations, and two commercial fire retardants, Ukanol(TM) and Phosgard(TM), have been shown to improve significantly PET flame-retardancy when used as comonomers.
Lecomte, Hélène A. +2 more
core +1 more source
Serum parathyroid hormone levels and renal handling of phosphorus in patients with chronic renal disease [PDF]
, 1972 In eight patients with advanced renal insufficiency (inulin clearance 1.4-9.1 ml/min), concentrations of serum calcium (S[Ca]) and phosphorus (S[P]) were maintained normal (S[Ca] > 9.0 mg/100 ml, (S[P] < 3.5 mg/100 ml) for at least 20 consecutive days ...
Halgrimson, CG +5 more
core +1 more source