scholarly journals Efecto del uso del suelo en las formas y disponibilidad de fósforo de un Andisol de la Meseta P’urhépecha, Michoacán.

2019 ◽  
Vol 37 (1) ◽  
pp. 35
Author(s):  
Jeannette Sofia Bayuelo Jiménez ◽  
Iván Ochoa ◽  
Eulogio De la Cruz Torres ◽  
Takashi Muraoka
Keyword(s):  
Land Use ◽  
Soil Type ◽  
Isotopic Dilution ◽  
P Fractions ◽  
Soil P ◽  
Native Soil ◽  
P Fertilizer ◽  
History Of ◽  
P Fraction ◽  
P Addition

Andisols are distinguished by a high phosphorus (P) adsorption capacity, which is a restrictive factor for plant growth. This study, it was hypothesized that the availability of P in the different forms extracted sequentially, would vary according to the land use, and its exchange would depend on its chemical characteristics. For this purpose, sequential extraction and isotopic dilution techniques were utilized to measure the effect of land use systems and corresponding P fertilizer inputs on size of inorganic and organic P forms and their lability. An Andisol sample from a field site with a long history of P amendments and another sample from a contiguous forested area under natural vegetation were treated with applied KH232PO4. The soil samples were sequentially extracted for P fractions after 49 days (d) of incubation. Recovery of 32P in each P form was evaluated. The recovery of 32P in all soil P fractions exhibited that 32P had undergone exchange with the native P. The exchange reaction occurred mainly in the Pi fractions. Resin-Pi, Bic-Pi and NaOH-Pi were increased by P fertilization, with the greater level occurring for NaOH-Pi. The highest increase of the 32P recovered in the NaOH0.1-Pi fraction of the P-fertilized Andisol shows that the added P changed into this form stays highly exchangeable and contributes P fertility to this soil type. The recalcitrant inorganic fractions contained almost no exchangeable P. In contrast, in native soil with no P input, more than 20% of the 32P was recovered in Bic-Po and NaOH-Po forms 49 d after the labeled P was added. The change in soil P fraction was associated with soil type and P addition. Nonetheless, the applied P persisting in the fraction can be exchangeable with solution P and, hence, can be plant-available.

scholarly journals Phosphorus Availabilities Differ between Cropland and Forestland in Shelterbelt Systems

Forests ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 1001
Author(s):  
Scott X. Chang ◽  
Mihiri C.W. Manimel Wadu ◽  
Fengxiang Ma
Keyword(s):  
Land Use ◽  
Chemical Fractionation ◽  
Land Use Type ◽  
Organic P ◽  
P Fractions ◽  
Soil P ◽  
Goods And Services ◽  
P Cycling ◽  
Extractable P ◽  
P Fraction

Shelterbelt systems play pivotal roles in providing goods and services to the rural community and the society at large, but phosphorus (P) cycling in shelterbelt systems is poorly studied, while P cycling and availability would be linked to the ecological function and services of shelterbelt systems. This study was conducted to understand how long-term (>30 years) land-use between cropland and forestland in shelterbelt systems affect soil P status. We investigated modified Kelowna (PKelowna) and Mehlich-3 (PMehlich) extractable P, P fractions (by sequential chemical fractionation), P sorption properties in the 0–10 and 10–30 cm soils and their relationship in six pairs of the cropland areas and adjacent forestland (each pair constitutes a shelterbelt system) in central Alberta. Both PKelowna and PMehlich in the 0–10 cm soil were greater in the cropland than in the forestland. The PKelowna ranged from 10 to 170 and 2 to 57 mg kg−1 within the cropland areas and forestland, respectively. The inorganic P fraction in the 0–30 cm depth was significantly related to PKelowna (R2 = 0.55) and PMehlich (R2 = 0.80) in cropland, but organic P fraction was not significantly related with neither PKelowna nor PMehlich. The iron (Fe) and aluminum (Al) associated P (Fe/Al-P) explained ~50% and ~45% of the variation of PKelowna in the 0–30 cm soil in the cropland and forestland, respectively. The Fe/Al-P and organic P fractions in the 0–10 cm soil were greater in the cropland than in the forestland. The differences in availability and P forms depending on the land use type in shelterbelts suggest that P management needs to be land-use type-specific for shelterbelt systems.

Effects of ammonium lignosulphonate and diammonium phosphate on soil organic carbon, soil phosphorous fractions and phosphorous uptake by corn

1995 ◽  
Vol 75 (2) ◽  
pp. 233-238 ◽  
Author(s):  
J. W. Fyles ◽  
X. H. Xie ◽  
A. F. MacKenzie ◽  
I. P. O’Halloran ◽  
R. J. Xie
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Fertilizer Efficiency ◽  
P Fractions ◽  
Soil P ◽  
Soil P Fractions ◽  
Native Soil ◽  
Extractable P ◽  
P Fertilizer ◽  
Field Incubation

Low P fertilizer efficiency can be attributed to a reduction in solubility due to P reactions with soil components. Added organic material may reduce such reactions and improve P fertilizer efficiency. Lignosulphonate (LS), a by-product of the pulp and paper industry, could have beneficial effects on fertilizer P. Effects of ammonium lignosulphonate (ALS) and diammonium phosphate (DAP) on corn (Zea mays L.) P uptake, extractable P and P fractions were measured. Soil P fractions were determined using a field incubation technique to simulate banded P applications in two Humic Gleysols, a Ste. Rosalie clay soil and an Ormstown silty clay loam soil. Soil organic C increased with increasing ALS addition and decreased with DAP additions. ALS had little effect on native soil P fractions. When applied with DAP, increasing rates of ALS increased Mehlich-III extractable P, 0.5 M NaHCO3 and 0.1 M NaOH extractable inorganic P, reduced 1.0 M HCl extractable P and had no effect on organic P extractable in 0.5 NaHCO3 and 0.1 M NaOH. Applying ALS at rates up to 300 kg ha−1 with P at 60 kg P2O5 ha−1 may improve uptake by corn of fertilizer P, but using ALS alone does not improve native soil P availability. Key words: Lignosulphonate, phosphorous fractions, field incubation, organic carbon, Zea mays L.

Relationship of soil phosphorus fractions to phosphorus soil tests and fertilizer response

2003 ◽  
Vol 83 (4) ◽  
pp. 443-449 ◽  
Author(s):  
R. H. McKenzie ◽  
E. Bremer
Keyword(s):  
Available P ◽  
Soil Test ◽  
Strongly Correlated ◽  
P Fractions ◽  
Soil Tests ◽  
Fertilizer Response ◽  
Inorganic P ◽  
Soil P ◽  
P Fertilizer ◽  
Soil Test P

Soil tests for available P may not be accurate because they do not measure the appropriate P fraction in soil. A sequential extraction technique (modified Hedley method) was used to determine if soil test P methods were accurately assessing available pools and if predictions of fertilizer response could be improved by the inclusion of other soil P fractions. A total of 145 soils were analyzed from field P fertilizer experiments conducted across Alberta from 1991 to 1993. Inorganic P (Pi) removed by extraction with an anion-exchange resin (resin P) was highly correlated with the Olsen and Kelowna-type soil test P methods and had a similar relationship with P fertilizer response. No appreciable improvement in the fit of available P with P fertilizer response was achieved by including any of the less available P fractions in the regression of P fertilizer response with available P. Little Pi was extractable in alkaline solutions (bicarbonate and NaOH), particularly in soils from the Brown and Dark Brown soil zones. Alkaline fractions were the most closely related to resin P, but the relationship depended on soil zone. Inorganic P extractable in dilute HCl was most strongly correlated with soil pH, reflecting accumulation in calcareous soils, while Pi extractable in concentrated acids (HCl and H2SO4) was most strongly correlated with clay concentration. A positive but weak relationship as observed between these fractions and resin P. Complete fractionation of soil P confirmed that soil test P methods were assessing exchangeable, plant-available P. Key words: Hedley phosphorus fractionation, resin, Olsen, Kelowna

scholarly journals DINAMIKA FRAKSI FOSFOR DAN SIFAT KIMIA TANAH SAWAH TERKAIT INDEKS PERTANAMAN PADI SAWAH DAN PRAKTIK PENGAIRAN

2019 ◽  
Vol 19 (1) ◽  
pp. 19-25
Author(s):  
Untung Sudadi ◽  
Laode Muhamad Asdiq Hamsin Ramadhan ◽  
Budi Nugroho ◽  
Arief Hartono
Keyword(s):  
Water Content ◽  
Rice Straw ◽  
Chemical Properties ◽  
Rice Paddy ◽  
Paddy Rice ◽  
P Fractions ◽  
Soil P ◽  
P Fertilizer ◽  
Predominant Factor ◽  
Sampling Times

Dynamics of P fractions and other chemical properties of a paddy soil are related to paddy rice cropping index (CI) and soil water content at field condition (SFWC).  This explorative research was aimed at to evaluating the effects of different CIs represented by ameliorations and fertilizations applied by, and SFWC to represent irrigation practiced by farmers of the studied paddy soils on dynamics of P fractions, other soil chemical properties, and paddy rice yield. Composite soil samples were taken from cultivated paddy fields with CI 100%, 200%, and 300% at 7, 9, 11, and 13 weeks after the initial waterlogging. Soil P were fractionated into soil PH2O, PNaHCO3-inorganic (Pi), PNaHCO3-organic (Po), PNaOH-Pi, PNaOH-Po, and PHCl fractions. At the four soil sampling times, SFWC at CI 100% < 200% ≈ 300%. At CI 100%, soil Po fractions tended to decrease, whilst Pi fractions tended to increase with the increasing SFWC. Soil P dynamics in all CIs were predominantly determined by Corg. Increase in Corg decreased Pi fractions at CI 100% and Po fractions at CI 200% but increased Pi fractions at CI 300%. Decreasing P2O5 and increasing rice straw doses decreased soil Eh. Predominant factor affected rice paddy yield was SFWC.   Keywords: P fertilizer, rice straw, soil field water-content, soil P fractions

scholarly journals Elevated [CO2] concentration and nitrogen addition affects responses of foliar phosphorus fractions in invasive species to increased phosphorus supply

2021 ◽  
Author(s):  
Lingling Zhang ◽  
Xianzhen Luo ◽  
Hans Lambers ◽  
Guihua Zhang ◽  
Nan Liu ◽  
...  
Keyword(s):  
Invasive Species ◽  
Nucleic Acid ◽  
P Availability ◽  
N Addition ◽  
P Fractions ◽  
Total N ◽  
Soil P ◽  
Soil P Availability ◽  
Foliar Phosphorus ◽  
P Addition

AbstractNo studies have explored how the invasive species of Mikania micranatha and Chromolaena odoratan adjust leaf phosphorus (P) among inorganic P (Pi) and organic P fractions to adapt the low soil P availability, especially under elevated CO2 concentrations ([CO2]) and nitrogen (N) deposition. Here, we address this by measuring foliar total N and P concentrations as well as functional P fractions (i.e. Pi, metabolic P, lipid P, nucleic acids P, and residual P) of both invasive species and a native species (Paederia. scandens) growing under different P supplies, N, and N+P addition under both ambient and elevated [CO2]. Phosphorus addition greatly increased plant biomass and foliar P concentrations but did not significantly affect foliar N concentration and leaf mass per unit leaf area (LMA). In response to P addition, the concentration of metabolic P increased the most, followed by that of nucleic acid P, Pi, and lipid P, in all species by an average of 754%, 82%, 53%, and 38%, respectively. However, elevated [CO2] and N addition weakened this positive effect on concentrations of foliar P fractions in the invasive species. Our results indicate that elevated [CO2] and N addition allowed the invasive species to acclimate to a low soil P availability, supporting their successful invasion, through greatly reducing P allocation to non-metabolic foliar P fractions (phospholipids and nucleic acid P) to meet their demand for metabolic P and Pi for photosynthesis, rather than altering LMA.

Soil P fractions as affected by on-farm composts in a controlled incubation study

2003 ◽  
Vol 83 (2) ◽  
pp. 223-226 ◽  
Author(s):  
B. Gagnon and R. R. Simard
Keyword(s):  
Poultry Litter ◽  
Extraction Procedure ◽  
Dairy Manure ◽  
P Availability ◽  
P Fractions ◽  
P Fractionation ◽  
Soil P ◽  
P Fraction ◽  
Labile P ◽  
On Farm

Information on the different forms and availability of P following compost addition to soil may help to better manage manure in respect to plant growth and the environment. An experiment was conducted to investigate through a sequential extraction procedure the availability of P of fresh dairy manure and several on-farm compost-soil mixtures after a 13 wk incubation in glass jars at 35°C. Materials were mixed at a rate of 200 mg N kg-1 with an Arago sandy loam (Humo-Ferric Podzol), supplying from 64 to 301 mg P kg-1. Fresh dairy manure gave the highest net increase of resin-P and labile P fractions in terms of percentage of total P added, whereas poultry litter compost was the most efficient in increasing NaHCO3-inorganic P (-Pi). Among compost materials, poultry litter, vegetable residue and sheep manure increased labile P fraction the most. The contribution of the young dairy manure compost to this fraction was largely negative, and lower than those of fresh manure or partially and well-decomposed manure composts. A large part of added P was found in the moderately labile P fraction. The organic P (Po) fractions in the soil were less affected by manure or compost addition. This study indicated that the material P availability was reduced by composting, and was more affected by the origin of residue than by manure management. Key words: Composting, farm manure, soil P fractionation

scholarly journals Accumulation of phosphorus fractions and contamination potential in vineyard soils in the southern region of the state of Santa Catarina, Brazil

2013 ◽  
Vol 37 (5) ◽  
pp. 1256-1266 ◽  
Author(s):  
Djalma Eugênio Schmitt ◽  
Jucinei José Comin ◽  
Carlos Alberto Ceretta ◽  
Luciano Colpo Gatiboni ◽  
Tales Tiecher ◽  
...  
Keyword(s):  
Soil Analysis ◽  
Chemical Fractionation ◽  
P Fractions ◽  
Santa Catarina ◽  
P Adsorption ◽  
Soil P ◽  
Adsorption Sites ◽  
Labile Fraction ◽  
Phosphate Fertilization ◽  
History Of

In vineyards, if phosphate is applied both before planting and at intervals during growth without consideration of technical criteria, the soil P fractions may be increased and their proportions altered. This study was carried out to evaluate the accumulation of P fractions and the parameters of the adsorption isotherm in a sandy Typic Hapludalf soil in vineyards with a history of successive and excessive phosphate fertilization. In December 2010, two vineyards were selected, one 4 and the other 15 years old, in Urussanga, State of Santa Catarina (Brazil). Three trenches were dug in each area and soil was collected from the 0-5, 5-10 and 10-20 cm depth ranges. The soil samples were dried in a forced-air oven, sieved and subjected to chemical analyses, P chemical fractionation and P adsorption isotherms. Excessive phosphate fertilization, before and during cultivation, particularly in the older vineyard and, consequently, with a longer history of phosphate fertilization, increased the inorganic P concentrations to the depth of 20 cm, especially in labile fractions extracted by anion exchange resin and NaHCO3 in the non-labile fraction, as well as in the non-labile fraction extracted by 1.0 mol L-1 HCl. The application of phosphate fertilizers and the long cultivation period increased the P levels in the organic labile fraction extracted by 0.5 mol L-1 NaHCO3, and especially in the moderately labile fraction extracted by 0.1 and 0.5 mol L-1 NaOH. Phosphate fertilization of older vineyards, i.e., cultivated for 15 years, increased the amounts of P desorbed in water, indicating a risk of contamination of surface waters and groundwater. The phosphate fertilization before planting, without considering the results of soil analysis, and during cultivation, disregarding the results of soil analysis, leaf analysis and expected yield, led to a reduction in the maximum P adsorption capacity in the 0-5 cm layer of vineyard 2, indicating saturation of part of the reactive particle adsorption sites.

scholarly journals Urochloa decumbens growth and P uptake as affected by long-term phosphate fertilization, mycorrhizal inoculation and historical land use in contrasting Oxisols of the Brazilian Cerrado

2017 ◽  
Vol 41 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Paulo Emílio Ferreira da Motta ◽  
José Oswaldo Siqueira ◽  
Bruno Teixeira Ribeiro ◽  
Sérgio Henrique Godinho Silva ◽  
Giovana Clarice Poggere ◽  
...  
Keyword(s):  
Land Use ◽  
P Uptake ◽  
P Concentration ◽  
Randomized Design ◽  
Urochloa Decumbens ◽  
History Of ◽  
Mycorrhizal Inoculation ◽  
Historical Land Use ◽  
P Addition

ABSTRACT In the fertility management of highly weathered-leached Brazilian Oxisols, P is the most limiting macronutrient. A greenhouse experiment was conducted with the objective to evaluate the influence of the interaction between P doses, mycorrhizal inoculation and historical land use on Urochloa decumbens growth and P uptake in four Oxisols with contrasting chemical, physical and mineralogical properties. The plants were cultivated in plastic pots containing 4 kg of soil in a completely randomized design, four replications and 2x2x2 factorial scheme: with two P doses; with and without mycorrhizal inoculation; soils cultivated for long periods and non-cultivated (under native vegetation). There were two plantings of ten weeks each. Shoot dry mater, concentration and accumulation of P in the shoot were evaluated. In the first planting, the Urochloa response was greater in non-cultivated soils associated with inoculation and P addition. However, in the second planting, the inoculation had a greater effect in all soils compared to the first planting associated with the lowest P dose. As the P concentration in the soil increased, P in the shoot dry matter increases. The inoculation did not affect the P concentration and accumulation in the shoot of Urochloa. The growth of Urochloa decumbens was strongly influenced by the interaction among soil class x history of land use x dose of P x inoculation.

Changes in phosphorus fractions at various soil depths following long-term P fertiliser application on a Black Vertosol from south-eastern Queensland

Soil Research ◽  
2007 ◽  
Vol 45 (7) ◽  
pp. 524 ◽  
Author(s):  
X. Wang ◽  
D. W. Lester ◽  
C. N. Guppy ◽  
P. V. Lockwood ◽  
C. Tang
Keyword(s):  
Surface Soil ◽  
P Fractions ◽  
Inorganic P ◽  
Residual P ◽  
Soil P ◽  
P Pools ◽  
Fertiliser Application ◽  
P Addition ◽  
Total P

Long-term removal of grain P and soil test data suggested that the Colwell phosphorus (P) extraction from the surface 0.10 m of a Black Vertosol from south-eastern Queensland was a poor indicator of run-down of soil P pools. We proposed that plants were also accessing P from layers below 0.10 m or from surface soil P pools not extracted by the Colwell extraction. Both topsoil and subsoil samples in 1994 and 2003 were collected from nil and 20 kg P/ha per crop treatments in a long-term N × P field experiment established in 1985 for detailed P fractionation. An uncropped reference soil was also taken in 2003 from an adjacent area. The long-term effect of the field treatments on soil P fractions was evaluated by comparing the reference site, which was assumed to represent the original soil condition, to the 2003 samples. Without addition of P fertiliser, 55%, 35%, and 10% of total P removal were from 0 to 0.10, 0.10 to 0.30, and 0.30 to 0.60 m, respectively, compared with the uncropped reference soil. Labile fractions comprising resin, bicarbonate, and hydroxide pools in the top 0.10 m decreased by approximately 60% and accounted for 15% of the total P decrease from 0 to 0.60 m depth. Acid and residual-P fractions decreased by 50% and 20%, respectively, and accounted for ~20% and 15% of the total P decrease. In contrast, P addition at 20 kg P/ha per crop over 18 crops doubled the resin and bicarbonate inorganic P (NaHCO3-Pi) pools in the surface 0.10 m. Hydroxide (NaOH-Pi) and acid extracted inorganic P increased by 25% and 10%, respectively, while the residual-P pool decreased by about 15%. Below 0.10 m, very little P was removed by the first 3 extractants. Most of the P was present in the acid and residual fractions irrespective of fertiliser application. The acid and residual-P dropped by 30% and 12%, respectively, at 0.10–0.30 m and 12% and 8% at 0.30–0.60 m. When comparing the experimental soil samples in 2003 with those in 1994, similar trends were observed in the changes of each soil P fraction. In the surface 0.10 m, acid and residual-P pools decreased greatly and explained almost all of the total P decrease in the surface soil without P input. With P addition, labile pools acted as the main sink for P. The acid pool increased by 7%, while the residual-P showed a decrease in the topsoil. Total P level was elevated noticeably in this soil layer. However, at 0.10–0.30 m depth, acid and residual pools were the dominant fractions and decreased significantly irrespective of P fertiliser addition. Below 0.30 m, no significant changes were detected for each fraction and total P. The results suggest that crops had accessed significant amounts of P at 0.10–0.30 m depth irrespective of P fertiliser application, and that subsoil sampling (0.10–0.30 m) should be considered in order to improve the monitoring of soil P status. However, choice of appropriate extractants for monitoring subsoil P reserves is yet to be undertaken.

scholarly journals Dynamic of Phosphorus Fractions in Typic Quartzipsamment Soil Cropped With Bean

2018 ◽  
Vol 10 (9) ◽  
pp. 493
Author(s):  
Alessandra Mayumi Tokura Alovisi ◽  
Ademar Pereira Serra ◽  
Alves Alexandre Alovisi ◽  
Luciene Kazue Tokura ◽  
Elaine Reis Pinheiro Lourente ◽  
...  
Keyword(s):  
Clay Mineralogy ◽  
Phosphorus Fractions ◽  
P Fractions ◽  
Bean Plants ◽  
P Content ◽  
P Fertilizer ◽  
P Fraction ◽  
Labile P ◽  
The City ◽  
Fertilizer Rates

Phosphorus is the most limited nutrient in Brazilian soils for plant growth, resulted of low availability and poor P content in bedrock. The aim of the study was to evaluate the dynamic of P fractions in a sand soil typical Quartzipsamment cropped with common bean under the effects of P and Si-fertilizer rates. The research was carried out in a soil with sand texture and clay mineralogy constituted mainly by kaolinite, classified as Neossolo Quartzarenico Ortico típico (RQo). The greenhouse location was the campus of Universidade Federal de Lavras located in the city of Lavras, state of Minas Gerais, Brazil (approximately 21o13'46.54" S and 44o58'26.30" W, average altitude 932 m above sea level). The experimental design used was entirely random, arranged in a 4 × 3 factorial design, with four repetitions, with amount of 48 experimental units. The treatments included four P rates (0, 80, 240 and 410 mg dm-3) and four Si rates (0, 240 and 410 mg dm-3). Phosphorus fractions in soil are little affected by Si-fertilizer rates. P uptakes by bean plants are correlated to the labile and moderately labile fractions. P-fertilizer rates increment majority the stable P fraction in soil and in lower proportion the labile and moderately labile P fractions in soil. Po-NaHCO3 is the only that contributes to bean plant nutrition.

Sign in / Sign up

Export Citation Format

Share Document