Effect of Eucalyptus globullus biochar addition on the availability of phosphorus in acidic soil

Phosphorus (P) is one of the primary nutrients limiting crop production. The application of phosphate fertilizers in acidic soils leads to the formation of secondary insoluble compounds that reduces the effectiveness of the fertilizer. The addition of biochar may represent a solution to the problem of nutrients bioavailability, especially P. In this study, tests were performed to determine the effects of amending soil with five different percentages of biochar (0, 5, 10, 20, and 35% w/w) on the phenomena of P sorption and desorption. The effect of soil/ biochar contact treatments on P availability was also examined. Phosphorus sorption was lower in the soils containing biochar compared to normal soil. The accumulated desorption quantity after eight consecutive extractions was 85% higher when 35% biochar was added to the soil than soil alone. Moreover, the application of 35% biochar increased the concentration of soluble P up to 38% after 30 days of incubation. Based on these results, we deduced that biochar induces changes in P retention soil properties that may be beneficial for agricultural soils.

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Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽

10.3390/min11040373 ◽

2021 ◽

Vol 11 (4) ◽

pp. 373

Author(s):

Jonathan Suazo-Hernández ◽

Erwin Klumpp ◽

Nicolás Arancibia-Miranda ◽

Patricia Poblete-Grant ◽

Alejandra Jara ◽

...

Keyword(s):

Organic Matter ◽

Crop Production ◽

Agricultural Soils ◽

Ph Value ◽

Consumer Products ◽

Soil Samples ◽

Engineered Nanoparticles ◽

P Availability ◽

Agricultural Crop ◽

Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

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Evaluation of phosphate sorption capacity and external phosphorus requirement of some agricultural soils of the southwestern Ethiopian highlands

Sains Tanah - Journal of Soil Science and Agroclimatology ◽

10.20961/stjssa.v18i2.51325 ◽

2021 ◽

Vol 18 (2) ◽

pp. 136

Author(s):

Berhanu Dinssa ◽

Eyasu Elias

Keyword(s):

Sorption Capacity ◽

Crop Production ◽

Agricultural Soils ◽

Soil Characteristics ◽

Soil Samples ◽

Phosphorus Sorption ◽

Acidic Soils ◽

Ethiopian Highlands ◽

P Sorption ◽

P Sorption Capacity

One of the most soil fertility management problems for crop production on acidic soils of the Ethiopian highlands is phosphorus fixation. The research was executed to assess the P-sorption capacity and to determine the external P requirement of different acidic soils in the Southwestern highlands of Ethiopia. Phosphorus sorption capacity (Kf) and its relation with selected soil characteristics were assessed for some major agricultural soils in the Ethiopian highlands to answer the questions, ‘What are the amount of P-sorption capacity and external P requirement of Nitisols, Luvisols, Alisols, and Andosols in Ethiopia?’. Twelve surface soil samples (at depth of 0-30 cm) were gathered and the P-sorption capacity was estimated. Phosphorus-sorption data were obtained by equilibrating 1 g of the 12 soil samples with 25 ml of KH2PO4 in 0.01 M CaCl2, having 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, and 330 mg P L-1 for 24 hours. The data were adjusted to the Freundlich adsorption model and the relationship among P-sorption and soil characteristics was established by correlation analysis. Clay content and exchangeable acidity, organic matter, Al2O3, and Fe2O3 oxides have affected phosphorus-sorption at a significance level of (P < 0.05). Alisols had the highest Kf value (413 mg kg-1) but Nitisols had the lowest Kf (280 mg kg-1). The external phosphorus fertilizer requirement of the soils was in the order of 25, 30, 32, and 26 mg P kg-1 for Nitisols, Luvisols, Alisols, and Andosols sequentially. The Kf varies among different soil types of the study area. The magnitude of the soil’s Kf was affected by the pH of the soil, soil OM content, and oxides of Fe and Al. Therefore, knowledge of the soils’ P retention capacity is highly crucial to determine the correct rate of P fertilizer for crop production.

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Effects of Liming on Dithionate and Oxalate Extractable Aluminium in Acid Soils

Asian Journal of Soil Science and Plant Nutrition ◽

10.9734/ajsspn/2019/v5i330069 ◽

2020 ◽

pp. 1-9

Author(s):

Esther Mwende Muindi

Keyword(s):

Crop Production ◽

Block Design ◽

Chemical Properties ◽

Acid Soils ◽

P Availability ◽

Acidic Soils ◽

Training Centre ◽

Wide Range ◽

World Information ◽

Considerable Work

Liming and phosphorus (P) applications are recommended practices for improving crop production in acid soils of the tropics. Although considerable work has been done to establish liming rates for acid soils in many parts of the world, information on the effects of lime on the forms of aluminium which actively sorb P in such soils is minimal. A greenhouse pot experiment was conducted at Waruhiu Farmers Training Centre, Githunguri to evaluate the effect of liming on oxalate and dithionate extractable aluminium in acid soils. Extremely (pH 4.48) and strongly (pH 4.59) acidic soils were evaluated. Four liming (CaO) rates namely 0, 2.2, 5.2 and 7.4 tonnes ha-1 for extremely acidic and 0, 1.4, 3.2, and 4.5 tonnes ha-1 for strongly acidic soils were evaluated. The experiment was laid out in a Randomized Complete Block Design (RCBD) and replicated three times. Data collected included: initial soil chemical properties, oxalate (Alo) and dithionate (Ald) aluminium levels. The tested soils had high exchangeable Al (> 2 cmol Al kg-1), Al saturation of (> 20% Al) and low extractable P values (< 15 mg P kg-1 soil). Liming significantly (p=.05) reduced Alo by 70% and 68% in extremely and strongly acidic soils respectively and Ald by 78% in both extremely and strongly acidic soils compared to control. Use of 7.4 tonnes ha-1 of lime in extremely acidic soils and 4.5 tonnes ha-1 of lime in strongly acidic soils significantly (p=.05) reduced both Alo and Ald by > 68% compared to no lime. It was, therefore, concluded that liming contributes to the reduction of soluble Alo and Ald in acid soils of the Kenya highlands leading to increased soluble P availability. Studies are required to provide short and long term optimal liming rates that reduce Alo and Ald without distabilizing availability of other nutrients in field conditions under wide range of acid soils.

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Effect of Nanoparticle Phosphate Rock and Phosphate Solubilizing Fungi on Soil P-Potential, P-Retention, Organic Carbon and Base Saturation on Cilembu’s Inceptisols

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1044.143 ◽

2021 ◽

Vol 1044 ◽

pp. 143-150

Author(s):

Muhammad Amir Solihin ◽

Pujawati Suryatmana ◽

Fajri Syahid Nurhakim ◽

Rina Devnita ◽

Mahfud Arifin

Keyword(s):

Soil Properties ◽

Crop Production ◽

Phosphate Rock ◽

Base Saturation ◽

Organic P ◽

Soil P ◽

Randomized Design ◽

Completely Randomized Design ◽

Phosphate Solubilizing ◽

P Retention

Intensive agricultural cultivation on Cilembu’s Inceptisols has become several soil properties problem for crop production. Nanoparticle phosphate rock and phosphate solubilizing fungi have ability to increase some soil properties content. The research aimed to observe the effect of nanoparticle phosphate rock and phosphate solubilizing fungi on soil P-potential, P-retention, C-organic and base saturation on Cilembu’s Inceptisols. The experiment arranged in Completely Randomized Design. The nanoparticle phosphate rock consisted of 4 levels. The phosphate solubilizing fungi consisted of 2 levels, and 2 replication. Soil P-Potential, P-Retention, C-organic, and Base Saturation were observed. The factors was observed after one month incubation on soil. Results showed that there were an interaction between nanoparticle phosphate rock and phosphate solubilizing fungi on the C-organic after one month incubation. Nanoparticle phosphate rock had affected on C-organic, P-potential and base saturation significantly, but had not affected on P-retention. Utilization of phosphate solubilizing fungi as soil ameliorant had affected significantly on P-potential and C-organic, but had not affected on P-retention and base saturation. Nanoparticle phosphate rock with a dose of 6% had the best effect on increase P-potential and base saturation

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Phosphorus sorption capacity of alkaline Manitoba soils and its relationship to soil properties

Canadian Journal of Soil Science ◽

10.4141/s04-064 ◽

2005 ◽

Vol 85 (3) ◽

pp. 417-426 ◽

Cited By ~ 34

Author(s):

D V Ige ◽

O O Akinremi ◽

D N Flaten ◽

B. Ajiboye ◽

M A Kashem

Keyword(s):

Soil Properties ◽

Langmuir Isotherm ◽

Single Point ◽

Chemical Properties ◽

Phosphorus Sorption ◽

Point Index ◽

Adsorption Parameters ◽

Retention Capacity ◽

Phosphorus Adsorption ◽

P Retention

The establishment of the P retention capacity of soil in Manitoba is essential for effective management of P in the region. However, the methods for determining the P retention capacity for neutral to calcareous soils in the Eastern Prairies are not well developed. The objectives of this study were to determine the P retention capacity of Manitoba soils and to generate equations that relate these capacities to other soil properties. One hundred and fifteen archived surface soils were selected and their physico-chemical properties were measured. These soils were used to generate a single-point P adsorption index by equilibrating 2 g of soil in 20 mL of 0.01 M KCl solution containing either 150 (P150) or 400 (P400) mg P L-1. A subset of 26 of these soils was used for multipoint isotherms with P concentrations in the range of 0–1000 mg P L-1. The data obtained were fitted to the Langmuir isotherm and the adsorption indices were correlated with the various soil properties that were then used to developed predictive equations of the P retention capacity of the soil. The values of the adsorption index, P150, obtained from the single point adsorption study using 150 mg P L-1, ranged between 88 and 891 mg P kg-1, while that of P400 ranged between 100 and 1250 mg P kg-1. A better correlation was obtained between P150 and soil properties compared with P400. For the 26 soil subset, the adsorption indices, Smax1 to Smax 6, obtained from the Langmuir isotherm, ranged from 300 to 1330 mg kg-1. A good correlation was obtained between the single point index and the multipoint isotherm (r = 0.93). Hence, Smax for the 115 soils was estimated from the relationship between P150 and Smax 3 of the 26 soils. The best relationships between the adsorption parameters, P150 and Smax, and the soil properties were obtained with the sum of Mehlich-3 extractable Ca and Mg (R2= 0.66) and the sum of exchangeable Ca and Mg (R2= 0.64). Mehlich-3-Ca and -Mg each explained 56% of the variation, while clay content explained 40% of the variation in the P retention capacity of these soils. Unlike the widely reported influence of Al and Fe in acid soils, our study showed that the retention of P in Manitoba soils was influenced more by Ca and Mg and soil texture. Key words: Phosphorus, phosphorus retention capacity, phosphorus adsorption capacity, phosphorus sorption, single-point index

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Agricultural Soil Phosphorus in Hungary: High Resolution Mapping and Assessment of Socioeconomic and Pedological Factors of Spatiotemporal Variability

Sustainability ◽

10.3390/su12135311 ◽

2020 ◽

Vol 12 (13) ◽

pp. 5311

Author(s):

Piroska Kassai ◽

Gergely Tóth

Keyword(s):

Soil Properties ◽

Crop Production ◽

Agricultural Soils ◽

Soil Phosphorus ◽

Spatiotemporal Variability ◽

Phosphorus Fertilization ◽

Phosphorus Level ◽

Soluble Phosphorus ◽

Agricultural Areas ◽

Phosphorus Levels

Over-fertilization before 1989 resulted in high phosphorus levels in agricultural soils of Hungary, but the accumulated reserves seem to have been depleted in recent decades due to under-fertilization. The aims of this study were to map the spatial pattern of phosphorus level and its change in the last few decades in Hungary to document the effect of fertilization and underlying socio-economic conditions on P concentrations, to identify the role of soil properties in changing soil soluble P and to quantify the total amount of soluble phosphorus level change in agricultural areas in the last few decades in the country. Two soil datasets were analyzed (National Pedological and Crop Production Database of Hungary and the Land Use/Land Cover Area Frame Survey, LUCAS, topsoil dataset), representing the status of soil nutrient contents in 1989 and in 2009. The measured phosphorus concentrations were compared to the reported phosphorus fertilization inputs. We also evaluated the effect of some important soil properties on soluble phosphorus content and on its change. We produced three maps by using kriging methods: soluble phosphorus levels in 1989, in 2009 and the change between 1989 and 2009. The results confirmed that phosphorus levels in agricultural areas depend mainly on agricultural use, while soil physical characteristics play a smaller role. Nevertheless, we demonstrated that the decrease in soil phosphorus levels was significantly influenced by soil chemistry (pH and CaCO3 content). The mean soluble phosphorus level was 108 mg/kg in 1989 and 28 mg/kg in 2009, and the median values were 100 and 22. The total loss (caused by harvesting, fixation and erosion) is ~1.5 million tons of soluble phosphorus, which is twice as much as the reported phosphorus balances indicated. In conclusion, our results show that approximately 50% of agricultural areas in Hungary are characterized by a very low supply of phosphorus (according to the latest data), posing a risk of nutrient depletion in these areas.

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A simple phosphorus buffering index for Australian soils

Soil Research ◽

10.1071/sr01050 ◽

2002 ◽

Vol 40 (3) ◽

pp. 497 ◽

Cited By ~ 99

Author(s):

L. L. Burkitt ◽

P. W. Moody ◽

C. J. P. Gourley ◽

M. C. Hannah

Keyword(s):

Initial Data ◽

Soil Properties ◽

Soil Property ◽

Agricultural Soils ◽

Single Point ◽

Phosphorus Sorption ◽

Data Set ◽

P Sorption ◽

Extractable P ◽

Single Addition

Soil phosphorus (P) buffering capacity (PBC) is an important soil property that influences the amount of P fertiliser available for plant uptake. However, current methods of determining PBC are time-consuming and uneconomic in most commercial soil testing programs. The current study examined simpler methods of measuring the PBC of a wide range of Australian soils. Phosphorus sorption and extractable P data from 290 soils (initial data set) were collated to define the range of PBC values of Australian agricultural soils. Independently, detailed chemical and physical analyses were undertaken on a second set of 90 agricultural soils (principal data set), which were selected to represent the range of soil properties measured on the initial data set. Relationships between PBCO&S (Ozanne and Shaw 1968) values (P sorbed between solution P concentrations of 0.25 and 0.35 mg P/L) and 11 different single-point P sorption indices and selected soil properties were examined for the principal data set. Whilst relationships between PBCO&S values and selected soil properties such as oxalate-extractable iron and aluminium, and clay content, were generally poor, strong relationships existed between all of the single-point P sorption indices and PBCO&S. Results suggest that PBCO&S values were most closely related to the P buffering indices (PBI+ColP and PBI+OlsP) when a single addition of 1000 mg P/kg was added to soil and either the Colwell or 4.59 Olsen extractable P were added to the amount of P sorbed: PBI+ColP = (Ps + Colwell P)/c0.41 PBI+OlsP = (Ps + 4.59 Olsen P)/c0.41 where Ps is the amount of P sorbed (mg P/kg) from a single addition of 1000 mg P/kg, and c is the resulting solution P concentration (mg P/L). This index provides a simple and accurate method for estimating PBC, a fundamental soil property that influences the P fertiliser requirements of different soil types. phosphorus sorption capacity, single-point phosphorus sorption index, phosphorus retention index, soil properties, Colwell phosphorus, Olsen phosphorus.

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Phosphate sorption parameters in relation to soil properties in some major agricultural soils of India

SAARC Journal of Agriculture ◽

10.3329/sja.v14i1.29549 ◽

2016 ◽

Vol 14 (1) ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

I Rashmi ◽

VRR Parama ◽

AK Biswas

Keyword(s):

Soil Properties ◽

Agricultural Soils ◽

Clay Content ◽

Phosphate Adsorption ◽

Phosphorus Sorption ◽

Sorption Data ◽

K Value ◽

P Sorption ◽

Indian Representative ◽

Sorption Parameters

Phosphorus sorption characteristics of some Indian representative agricultural soils belonging to four soil orders namely Vertisol, Inceptisol, Alfisol and Ultisol were investigated for adsorption behaviour of P and sorption data were fitted to Langmuir and Freundlich equations. The Langmuir constant i.e. adsorption maxima was highest for Vertisol (716.85 ?g g-1), followed by Ultisol (633.3 ?g g-1), Alfisol (501.46 ?g g-1) and Inceptisol (522.93 ?g g-1) respectively. The Freundlich k value for Vertisol, Inceptisol, Alfisol and Ultisol were 159.12, 59.41, 110.57 and 181.36 ?g g-1 respectively, whereas the n values were 2.05, 1.92, 2.49 and 3.07 g ml-1 respectively. The phosphate adsorption isotherm gave good fit adopting Langmuir (r2 = 0.96 to 0.99) and Freundlich (r2= 0.95 to 0.99) for the four soils. Phosphorus sorption maxima was significantly correlated with clay (r2=0.70), Al (r2= 0.73) and Fe (r2=0.81) forms, MPBC (r2=0.67) and Freundlich constants (r2=0.82). Among the various soil properties which correlated with P sorption maxima of significance was clay content (r2=0.97) was significantly correlated. The study illustrated that P sorption isotherm in relation to soil properties can be used as a tool of P management in sustainable crop production.SAARC J. Agri., 14(1): 1-9 (2016)

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Zinc Uptake by Plants as Affected by Fertilization with Zn Sulfate, Phosphorus Availability, and Soil Properties

Agronomy ◽

10.3390/agronomy11020390 ◽

2021 ◽

Vol 11 (2) ◽

pp. 390

Author(s):

Ramiro Recena ◽

Ana M. García-López ◽

Antonio Delgado

Keyword(s):

Soil Properties ◽

Zn Deficiency ◽

Acid Extraction ◽

P Availability ◽

Positive Role ◽

Yield And Quality ◽

Zn Uptake ◽

Use Efficiency ◽

Crystalline Oxides ◽

Zn Availability

Zinc (Zn) deficiency constrains crop yield and quality, but soil factors influencing Zn availability to plants and reactions of applied Zn fertilizer are not fully understood. This work is aimed at studying Zn availability in soil and the use efficiency of Zn fertilizers by plants as affected by soil properties and particularly by soil available P. We performed a pot experiment involving four consecutive crops fertilized with Zn sulfate using 36 soils. The cumulative Zn uptake and dry matter yield in the four crops increased with increased initial diethylenetriamine pentaacetic acid extraction of Zn (DTPA-Zn) (R2 = 0.75 and R2 = 0.61; p < 0.001). The initial DTPA-Zn increased with increased Olsen P (R2 = 0.41; p < 0.001) and with increased ratio of Fe in poorly crystalline to Fe in crystalline oxides (R2 = 0.58; p < 0.001). DTPA-Zn decreased with increased cumulative Zn uptake, but not in soils with DTPA-Zn < 0.5 mg kg−1. Overall, the available Zn is more relevant in explaining Zn uptake by plants than applied Zn sulfate. However, in Zn-deficient soils, Zn fertilizer explained most of the Zn uptake by crops. Poorly crystalline Fe oxides and P availability exerted a positive role on Zn availability to plants in soil.

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Status of trace elements in agricultural soils of Bangladesh and relationship with soil properties

Soil Science & Plant Nutrition ◽

10.1080/00380768.2000.10409161 ◽

2000 ◽

Vol 46 (4) ◽

pp. 963-968 ◽

Cited By ~ 11

Author(s):

M. Jahiruddin ◽

H. Harada ◽

T. Hatanaka ◽

M.R. Islam

Keyword(s):

Trace Elements ◽

Soil Properties ◽

Agricultural Soils

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