scholarly journals Influence of parent material on organic phosphorus fractions in vineyard soils in Santa Catarina, Brazil

2020 ◽  
Vol 15 (5) ◽  
pp. 1
Author(s):  
Shirlei Almeida Assunção ◽  
Marcos Gervasio Pereira ◽  
Denilson Dortzbach ◽  
Eduardo Carvalho da Silva Neto
Keyword(s):  
Essential Element ◽  
Parent Material ◽  
Organic P ◽  
P Fractions ◽  
Santa Catarina ◽  
Residual P ◽  
Mountainous Regions ◽  
Vineyard Soils ◽  
Labile P ◽  
Moderately Resistant

Phosphorus (P) is an essential element for vineyard productivity. This study assessed the influence of parent material on organic P fractions in vineyard soils of basaltic and rhyodacitic origin. The experiment was conducted in four municipalities located in mountainous regions in Santa Catarina, Brazil: Urubici, São Joaquim, Campos Novos, and Água Doce. Disturbed soil samples were collected between grapevine rows at depths of 0.00–0.05, 0.05–0.10, 0.10–0.20, and 0.20–0.40 m. Soil chemical attributes (pH in H2O, Ca2+, Mg2+, Al3+, P, K+, and H + Al), total organic carbon (TOC), available and residual P, labile P (extracted with sodium bicarbonate), moderately labile P (extracted with sulfuric acid), and moderately resistant P (extracted with sodium hydroxide) were determined. Soil parent material influenced the dynamics of phosphorus in vineyard soils. Both P forms (available and solution equilibrium P) and P organic fractions (labile, moderately labile, and moderately resistant P), are affected by the parent material. Basaltic soils had higher TOC, available and residual P, and moderately labile and moderately resistant P, whereas rhyodacitic soils showed higher labile P. The high levels of moderately labile and moderately resistant P fractions in basaltic soil were attributed to its high TOC, available P, and residual P contents. Parent material was found to influence organic P fractions in vineyard soils.

scholarly journals Influence of Application of Organic Residues of Different Biochemical Quality on Phosphorus Fractions in a Tropical Sandy Soil

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 248
Author(s):  
Tanabhat-Sakorn Sukitprapanon ◽  
Metawee Jantamenchai ◽  
Duangsamorn Tulaphitak ◽  
Nattaporn Prakongkep ◽  
Robert John Gilkes ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Sandy Soil ◽  
Organic Residue ◽  
Residue Quality ◽  
Organic Residues ◽  
P Fractions ◽  
Residual P ◽  
Extractable P ◽  
P Fraction ◽  
Labile P

Understanding phosphorus (P) dynamics in tropical sandy soil treated with organic residues of contrasting quality is crucial for P management using organic amendments. This research determined P fractions in a tropical sandy soil under the application of organic residues of different quality, including groundnut stover (GN), tamarind leaf litter (TM), dipterocarp leaf litter (DP), and rice straw (RS). The organic residues were applied at the rate of 10 t DM ha−1 year−1. The P fractions were examined by a sequential extraction procedure. Organic residue application, regardless of residue quality, resulted in P accumulation in soils. For unamended soil, 55% of total P was mainly associated with Al (hydr)oxides. Organic residue application, regardless of residue quality, diminished the NH4F-extractable P (Al-P) fraction, but it had a nonsignificant effect on NaOH-extractable P (Fe-P). The majority of Al-P and Fe-P fractions were associated with crystalline Al and Fe (hydr)oxides. NH4Cl-extractable P (labile P), NaHCO3-extractable P (exchangeable P and mineralizable organic P), HCl-extractable P (Ca-P), and residual P fractions in soil were significantly increased as a result of the incorporation of organic residues. The application of organic residues, particularly those high in ash alkalinity, increase soil pH, labile P, and Ca-P fractions. In contrast, applications of residues high in lignin and polyphenols increase residual P fraction, which is associated with organo-mineral complexes and clay mineral kaolinite.

CHANGES WITH TIME IN THE FORM AND AVAILABILITY OF RESIDUAL FERTILIZER PHOSPHORUS ON CHERNOZEMIC SOILS

1986 ◽  
Vol 66 (1) ◽  
pp. 105-119 ◽  
Author(s):  
B. I. WAGAR ◽  
J. W. B. STEWART ◽  
J. O. MOIR
Keyword(s):  
Key Words ◽  
Organic P ◽  
Clay Loam ◽  
P Fractionation ◽  
Residual P ◽  
Fractionation Procedure ◽  
P Fertilizer ◽  
Labile P ◽  
P Transformations ◽  
Stable Forms

A sequential phosphorus (P) fractionation procedure was used to measure the changes in the labile and stable forms of inorganic and organic P following single broadcast P applications to Canadian Chernozemic soils under cereal cropping. Approximately half of the fertilizer residues remained in plant-available forms (resin, NaHCO3). In a Black Waskada clay loam 8 yr after the application of 200 and 400 kg P ha−1, residual fertilizer P consisted of resin-P, 30–40%; HCl-P, 25–30%; residue-P, 10–15%; NaOH-P, 10–15%, NaHCO3-P, 10%; and aggregate protected P, 3%. The residues in a Dark Brown Sutherland clay 5 yr after the application of 160 kg P ha−1 were: resin-P, 35%; NaOH-P, 30–40%; NaHCO3-P, 15%; HCl-P, 0–5%; H2SO4-P, 5%; and aggregate protected P, 5%. The soils differed in the quantity of fertilizer recovered in inorganic HCl-extractable forms. In the Sutherland soil the change from wheat-fallow to continuous wheat cropping produced a build-up of organic P which occurred with and without the addition of P fertilizer. Key words: Residual P, P transformations, Labile Pi; labile Po, stable Pi stable Po

scholarly journals Phosphorus Forms and Associated Properties along an Urban–Rural Gradient in Southern China

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2504 ◽  
Author(s):  
Guobing Qin ◽  
Jianfu Wu ◽  
Xiaomei Zheng ◽  
Rongwei Zhou ◽  
Zongqiang Wei
Keyword(s):  
Urban Soil ◽  
Urban Soils ◽  
Southern China ◽  
P Fractions ◽  
Environmental Implications ◽  
Residual P ◽  
Soil P ◽  
Urban Rural ◽  
Labile P ◽  
Total P

Urbanization is widely assumed to degrade soil ecosystem services, but the changes in the urban soil phosphorus (P) status due to urbanization and the associated environmental implications have rarely been studied. The objective of this study was to investigate the P forms and associated soil properties in urban soils. Thirty sites were selected along an urban–rural gradient in Nanchang, China, to examine the effects of urbanization on soil P fractions. Residual P and NaOH-extractable P (NaOH-Pi and NaOHPo) were the major P forms in the 0–30 cm of urban soils, comprising on average 37% and 43% of the total P pool, respectively, similar to the suburban and rural soils. Compared with non-urban soils, urban soil had higher contents of total P and P fractions (i.e., PH2O, PKCl, NaOH-Pi, PHCl, and residual P), as well as higher contents of related soil P-retentive properties, especially soil pH and Mehlich 3-extractable Ca and Mg. Phosphorus enrichment in the urban soils may become a source of aquatic pollution because the soil labile P content (the sum of PH2O and PKCl) was positively related to total P, PHCl, NaOH-Pi, and residual P, which implied that the labile P can be replenished by these P pools. This study increased the understanding of P stabilization characteristics (e.g., the specific P forms) of urban soils and has further implications for urban environmental management.

scholarly journals Spatial Patterns of Phosphorus Fractions in Soils of Temperate Forest Ecosystems with Silicate Parent Material

2016 ◽  
Author(s):  
Florian Werner ◽  
Tilman René de la Haye ◽  
Sandra Spielvogel ◽  
Jörg Prietzel
Keyword(s):  
Spatial Patterns ◽  
Distribution Patterns ◽  
Parent Material ◽  
Organic P ◽  
P Fractions ◽  
P Nutrition ◽  
Organic C ◽  
Inorganic P ◽  
Binding Partners ◽  
P Distribution

Abstract. The stage of pedogenesis is a crucial indicator describing phosphorus (P) distribution, but also governing spatial P distribution patterns. Here, we assessed spatial patterns of P fractions and major P binding partners (e.g. organic C, pedogenic Fe and Al minerals) in a geosequence to describe spatial and pedogenetic changes of P distribution and to identify mechanisms for these changes. We found, that the distribution of total P was generally best matched by the distribution pattern of organic P, both showing decreasing content from the top- to the subsoil. Inorganic P was mainly ascribed as bound in unweathered rock at all sites, but with decreasing importance in later stages of pedogenesis. The pedogenetically young soil at Bad Brückenau also showed adsorbed inorganic P in the topsoil, probably due to high mineralization of organic P. Soil organic matter (SOM)-sesquioxide-complexes, as well as Al and Fe oxyhydroxides were identified as main binding partners of organic P at all stages of pedogenesis. With depth, the correlations of various P fractions with SOM decreased, whereas those with pedogenic Fe and Al oxyhydroxides increased. The change of sorbent is due to the mobilization of first Al, and in later stages of pedogenesis, of Fe in the topsoil. Both metals and its oxyhydroxides (Al(OH)i, Fe(OH)i) probably formed strong complexes with SOM and therefore retained P in the pedon. Due to the heterogeneous P distribution, our results suggest a differing ecosystem P nutrition strategy at each of our sites: from acquiring inorganic P from weathered primary rock to minimizing loss of organic P by recycling. We argue that even in early stages of pedogenesis, P recycling is a major driver of ecosystem P nutrition, however not as important as in later stages. We conclude that the stage of pedogenesis in silicate soils, as e.g. visible in degree and state of podzolization, serves as predictor for plant and microbial P nutritional strategies.

scholarly journals Forms of phosphorus in an oxisol under different soil tillage systems and cover plants in rotation with maize

2014 ◽  
Vol 38 (3) ◽  
pp. 972-979 ◽  
Author(s):  
Arminda Moreira de Carvalho ◽  
Mercedes Maria da Cunha Bustamante ◽  
Zayra Azeredo do Prado Almondes ◽  
Cícero Célio de Figueiredo
Keyword(s):  
Cover Crops ◽  
Rainy Season ◽  
Dry Season ◽  
Soil Tillage ◽  
No Tillage ◽  
Organic P ◽  
Tillage Systems ◽  
Tillage Practices ◽  
Spontaneous Vegetation ◽  
Labile P

Phosphorus fractions play a key role in sustaining the productivity of acid-savanna Oxisols and are influenced by tillage practices. The aim of this study was to quantify different P forms in an Oxisol (Latossolo Vermelho-Amarelo) from the central savanna region of Brazil under management systems with cover crops in maize rotation. Three cover crops (Canavalia brasiliensis, Cajanus cajan (L.), and Raphanus sativus L.) were investigated in maize rotation systems. These cover crops were compared to spontaneous vegetation. The inorganic forms NaHCO3-iP and NaOH-iP represented more than half of the total P in the samples collected at the depth of 5-10 cm during the rainy season when the maize was grown. The concentration of inorganic P of greater availability (NaHCO3-iP and NaOH-iP) was higher in the soil under no-tillage at the depth of 5-10 cm during the rainy season. Concentrations of organic P were higher during the dry season, when the cover crops were grown. At the dry season, organic P constituted 70 % of the labile P in the soil planted to C. cajan under no-tillage. The cover crops were able to maintain larger fractions of P available to the maize, resulting in reduced P losses to the unavailable pools, mainly in no-tillage systems.

scholarly journals Phosphorus dynamics during early soil development in extreme environment

2021 ◽  
Author(s):  
Zuzana Frkova ◽  
Chiara Pistocchi ◽  
Yuliya Vystavna ◽  
Katerina Capkova ◽  
Jiri Dolezal ◽  
...  
Keyword(s):  
Isotopic Composition ◽  
Soil Development ◽  
Parent Material ◽  
Available P ◽  
Extreme Condition ◽  
Organic P ◽  
Soil P ◽  
Early Stages ◽  
P Pools ◽  
Microbial P

Abstract. At the early stages of pedogenesis, the dynamics of phosphorus (P) in soils are controlled by microbial communities, the physicochemical properties of the soil and the environmental conditions. While various microorganisms involved in carrying out biogeochemical processes have been identified, little is known about the actual contribution of microbial processes, such as organic P hydrolysis and microbial P turnover, to P cycling. We thus focused on processes driven by microbes and how they affect the size and cycling of organic and inorganic soil P pools along a soil chronosequence in the Chamser Kangri glacier forefield (Western Himalayas). The rapid retreat of the glacier allowed us to study the early stages of soil formation under cold arid climate. Biological P transformations were studied with the help of the isotopic composition of oxygen (O) in phosphate (δ18OP) coupled to sequential P fractionation performed on soil samples from four sites of different age spanning 0 to 100–150 years. The mineral P, i.e. 1M HCl-extractable P, represented still 95 % of the total P stock after approximately 100 years of soil development. Its isotopic composition was similar to the parent material also at the most developed site. Primary phosphate minerals, therefore, mostly composed this pool. The δ18OP of the available P and the P bound to Fe and Al oxides instead differed from that of the parent material, suggesting that these pools underwent biological turnover. The isotopic composition of O in of the available P was mostly controlled by the microbial P, suggesting fast exchanges occurred between these two pools possibly fostered by repeated freezing-thawing and drying-rewetting cycles. The release of P from organic P become increasingly important with soil age, constituting one third of the P flux to available P at the oldest site. Accordingly, the lighter isotopic composition of the P bound to Fe and Al oxides at the oldest site indicated that this pool contained phosphate released by organic P mineralization. Compared to previous studies on early pedogenesis under alpine or cold climate, our findings suggest a much slower decrease of the P-bearing primary minerals during the first 100 years of soil development under extreme condition. However, they provide evidence that, by driving short-term P dynamics, microbes play an important role in controlling the redistribution of primary P into inorganic and organic soil P pools.

scholarly journals Effect of Soil Nutrient Management on P transformation under Protected Cultivation

2020 ◽  
Author(s):  
Khalid Hussain ◽  
Muniza Sarfraz
Keyword(s):  
Nutrient Management ◽  
Acid Soils ◽  
Essential Element ◽  
Soil Samples ◽  
Available P ◽  
Single Factor ◽  
P Fractions ◽  
North East ◽  
Factor Effect ◽  
Protected Cultivation

Background: Phosphorus, an essential element, plays a central role in cell metabolism and reproduction. It is a structural component of energy transferring molecules (ATP, ADP and AMP), nucleic acids, coenzymes, phosphor-proteins, phospholipids and sugar phosphates. In soils, the P does not occur abundantly as nitrogen or potassium. Despite its importance, only a proportion (~ 0.1-1.0 %) of it is available for use by plants and microorganisms because phosphorous has poor solubility and gets fixed in soil. Many studies had been done regarding nutrient management of soil in various parts of the world, but limited study was done in India and in North-East India, it is relatively unexplored. Thus, the main aim of this experiment was to find out how nutrient management influencing P fractions under protected cultivation. Methods: The investigation area from which soil samples were collected i.e., Horticultural Farm, Assam Agricultural University, Jorhat-13, Assam. The study was carried out under protected poly house condition in the year 2017-18. The test crop was Capsicum (Capsicum annum var. Swarna). The design of the experiment was Split-Split plot technique. Random soil samples were collected from different treatments under protected cultivation at a depth of 0-15 cm. The soil samples were collected at two different stages of the crop viz., flowering and fruiting stages at 45 and 115 days after planting respectively. Result: The present study revealed that single factor effect of nitrogen (N), phosphorus (P) and potassium (K) had a significant effect on different forms of P The readily available P forms tend to increase in the fruiting stage while the iron bound phosphates registered a decrease. This implies that iron bound phosphate form predominantly controlled available P in acid soils under protected cultivation. The study indicates that iron bound P may be considered as slowly available labile P for fertilizer scheduling under protected cultivation. The present study also revealed that single factor effect of nitrogen(N) and phosphorus(P) had a significant effect on yield of capsicum. Among the various P fractions, Pi-water and Pi-Fe contribute more towards yield of capsicum.

scholarly journals Distribution of phosphorus fractions of different plant availability in German forest soils and their relationship to common soil properties and foliar P concentrations

2018 ◽  
Author(s):  
Jörg Niederberger ◽  
Martin Kohler ◽  
Jürgen Bauhus
Keyword(s):  
Soil Properties ◽  
Forest Soil ◽  
Soil Survey ◽  
Soil Conditions ◽  
Organic Carbon Content ◽  
P Fractions ◽  
P Pools ◽  
P Content ◽  
Labile P ◽  
Total P

Abstract. Repeated, grid-based forest soil inventories such as the nationwide German forest soil survey (GFSI) aim, among other things, at detecting changes in soil properties and plant nutrition. In these types of inventories, the only information on soil phosphorus (P) is commonly the total P content. However, total P content in mineral soils of forests is usually not a meaningful variable to predict the availability of P to trees. Here we tested a modified sequential P extraction ac-cording to Hedley to determine the distribution of different plant available P fractions in soil samples (0–5 and 10–30 cm depth) from 146 GFSI sites, capturing a wide variety of soil conditions. In addition, we analyzed relationships between these P fractions and common soil proper-ties such as pH, texture, and organic Carbon content (SOC). Total P content among our samples ranged from approximately 60 up to 2800 mg kg−1. The labile, moderately labile, and stable P fractions contributed to 27 %, 51 % and 22 % of total P content, respectively, at 0–5 cm depth. At 10–30 cm depth, the labile P fractions decreased to 15 %, whereas the stable P fractions in-creased to 30 %. These changes with depth were accompanied by a decrease in the organic P fractions. High P contents were related with high pH-values. Whereas the labile P pool increased with decreasing pH in absolute and relative terms, the stable P pool decreased in absolute and relative terms. Increasing SOC in soils led to significant increases in all P pools and in total P. In sandy soils, the P content across all fractions was lower than in other soil texture types. Multiple linear regressions indicated that P pools and P fractions were moderately well related to soil properties (r2 mostly above 0.5), and sand content of soils had the strongest influence. Foliage P concentrations in Pinus sylvestris were reasonably well explained by the labile and moderately labile P pool (r

scholarly journals Mixed Cropping as Affected by Phosphorus and Water Supply

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1506
Author(s):  
Bettina Eichler-Löbermann ◽  
Stefanie Busch ◽  
Nicolai David Jablonowski ◽  
Mareike Kavka ◽  
Christine Brandt
Keyword(s):  
Water Supply ◽  
Biomass Yield ◽  
Sharp Decrease ◽  
P Availability ◽  
Mixed Cropping ◽  
P Fractions ◽  
Pot Trials ◽  
Labile P ◽  
Water Holding ◽  
P Supply

In a future exposed to threats of climate change, sustainable biomass production will be crucial. Maize (Zea mays) and sorghum (Sorghum sp.) are important crops for human and animal nutrition, as well as for bioenergy. The aim of this study was to investigate maize and sorghum in mixed cropping with soybean (Glycine max) and faba bean (Vicia faba) regarding biomass yield, drought tolerance, phosphorus (P) availability, and enzyme activity in soil as affected by the single and combined effects of water and P supply in two outdoor pot trials with rainout shelters. Maize had the highest biomass under sufficient water supply (80% water holding capacity, WHC), but a sharp decrease of its biomass of about 60% was measured when water was limited (30% WHC). In the mixtures, drought induced reduction of biomass was less than 40%. For mixed cropping usually higher contents of labile P fractions in soil than for sole cropped monocots were found. This was especially true for the combined stress of water and P deficit and can be partly explained by a higher activity of the acid phosphatase in the soil of the mixtures. A higher yield stability of the crop mixtures makes them a suitable agronomic alternative to sole cropped maize or sorghum under suboptimal conditions of water and P shortage.

Dynamics of phosphorus fractions in soils treated with dairy manure

Soil Research ◽  
2020 ◽  
Vol 58 (3) ◽  
pp. 289
Author(s):  
L. B. Braos ◽  
A. C. T. Bettiol ◽  
L. G. Di Santo ◽  
M. E. Ferreira ◽  
M. C. P. Cruz
Keyword(s):  
P Uptake ◽  
Dairy Manure ◽  
P Availability ◽  
Organic P ◽  
Triple Superphosphate ◽  
P Fractions ◽  
Inorganic P ◽  
Soil P ◽  
Plant P Uptake ◽  
Inorganic P Fractions

The evaluation of phosphorus (P) transformations in soil after application of manure or mineral P can improve soil management and optimise P use by plants. The objectives of the present study were to assess organic and inorganic P forms in two soils treated with dairy manure and triple superphosphate and to establish relationships between soil P fraction levels and P availability. Soil organic and inorganic P fractions were quantified using a pot experiment with two soils, a typical Hapludox and an arenic Hapludult, with three types of fertiliser treatments applied (no fertiliser application, application of dairy manure, and application of triple superphosphate, by adding 100 mg P dm–3 in the form of fertiliser in the two latter treatments) and four incubation times (15, 45, 90, and 180 days). Inorganic P was fractionated into aluminium-bound, iron-bound, occluded, and calcium-bound P. Organic P was extracted sequentially using sodium bicarbonate, hydrochloric acid, microbial biomass, sodium hydroxide, and residual organic P. After incubation, maize plants were cropped to quantify dry matter yield and absorbed P. Application of dairy manure resulted in a significant increase in most of the organic P fractions, and application of triple superphosphate led to a significant increase in inorganic P fractions. Both fertilisers raised labile organic P fractions in the two soils. The major sinks of P in Hapludox were occluded and fulvic acid-associated P. In contrast, the major sink of P in Hapludult was iron-bound P. The available P levels were stable after application of dairy manure, and decreased with time when fertilised with triple superphosphate. In the Hapludox, the organic P fractions had a significant positive correlation with P uptake by plants. The results suggest that organic P mineralisation plays a more significant role in plant P uptake in the Hapludox soil and inorganic P forms are the main contributors to plant P uptake in the Hapludult soil.

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