Results 21 to 30 of about 25,655,192 (252)

Effects of Desertification on Phosphorus Fractions of Alpine Meadow Soils

open access: yesShuitu baochi tongbao, 2023
[Objective] Soil phosphorus fractions determine the migration and availability of phosphorus during soil evolution. The spatial distribution characteristics of soil phosphorus fractions in alpine meadows under different desertification levels were ...
Li Dongmei   +5 more
doaj   +1 more source

Mobility of different forms of phosphorus in sandy soils

open access: yes浙江大学学报. 农业与生命科学版, 2010
Predication of the long-term leaching of phosphorus (P) in the soil requires information of soil characteristics and behavior of P forms. This study assessed the mobility of different P forms in sandy soils that have been intensively loaded with P.
ZHANG Hui-min, ZHANG Ming-kui
doaj   +1 more source

Quantifying phosphorus fertilizer distribution and the contribution of fertilizer and soil legacy phosphorus to phosphorus uptake by maize – A 32P‐labelling study

open access: yesFood and Energy Security, 2023
The availability of phosphorus (P) fertilizer applied to soil can diminish rapidly because of the complex soil P immobilization processes. However, the quantitative distribution of fertilizer P in the soil P fractions is not fully understood.
Dongfang Zheng   +5 more
doaj   +1 more source

Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water [PDF]

open access: yes, 2009
Only scarce field studies concern the consequences of natural soil organic matter (SOM) and metal interactions on SOM dynamics in soils. We investigated the interactions of four metals (Pb, Zn, Cu and Cd) with the SOM associated to five different size ...
Quenea, Katell   +5 more
core   +1 more source

Use of near-infrared spectroscopy to assess phosphorus fractions of different plant availability in forest soils [PDF]

open access: yesBiogeosciences, 2015
The analysis of soil phosphorus (P) in fractions of different plant availability is a common approach to characterize the P status of forest soils. However, quantification of organic and inorganic P fractions in different extracts is labor intensive ...
J. Niederberger   +8 more
doaj   +1 more source

Phosphorus Fractions in Temperate Grassland Soils and Their Interactions with Agronomic P Tests

open access: yesAgronomy, 2022
Phosphorus (P) is a major nutrient for plant growth and animal health, and its availability in soil is influenced by agronomic management and soil properties. This study examined the distribution of labile and non-labile soil P fractions in grassland and
Jessica Graça   +3 more
doaj   +1 more source

Cokriging particle size fractions of the soil [PDF]

open access: yes, 2007
It is often necessary to predict the distribution of mineral particles in soil between size fractions, given observations at sample sites. Because the contents in each fraction necessarily sum to 100%, these values constitute a composition, which we may ...
Bishop, T. F. A.   +3 more
core   +1 more source

Sorption and fractionation of dissolved organic matter and associated phosphorus in agricultural soil [PDF]

open access: yes, 2007
Molibility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from oils to surface waters. To study the sorption an mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM ...
Hansen, H.C.B.   +13 more
core   +2 more sources

Characterizing differences in the phosphorus activation coefficient of three typical cropland soils and the influencing factors under long-term fertilization. [PDF]

open access: yesPLoS ONE, 2017
The phosphorus activation coefficient (PAC, the ratio of available P to total P) is an important indicator of soil P availability and the transformation of P fractions.
Qihua Wu   +6 more
doaj   +1 more source

Phosphorus fractions in long-term fertilizer agricultural soils of typical agricultural areas in China

open access: yesEarth Critical Zone
Understanding the distribution of soil total phosphorus (P) concentration and fractions from soil of different types is essential for sustainable nutrient management.
Liyan Tian   +3 more
doaj   +1 more source

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