Phosphorus transformations as affected by sampling date, fertilizer rate and phosphorus uptake in a soil under pasture

Picone, L. I.; Zamuner, Ester Cristina; Berardo, Angel; Marino, María A.

doi:10.1023/b:fres.0000003603.43095.90

Cited by 17 publications

(11 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Extractable P depends on soil P contents, application rates and immobilization (Picone et al , 2003; Samadi, 2006; Messiga et al , 2012). Processes related to nutrient supply and uptake by plants and the prediction of the residual effects of applied nutrients are better understood by means of nutrient balance models.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, relatively little work has been published on soil P dynamics under the specific conditions of a Mediterranean pasture system with annual application of P fertilizer. An adequate understanding of these dynamics, particularly of the short‐ and long‐term fate of the applied fertilizer under different management systems, is fundamental for a sustainable site‐specific pasture field management (Picone et al , 2003) to improve P cycling and minimize losses.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Soil phosphorus retention in a Mediterranean pasture subjected to differential management

Serrano

Shahidian

Silva

2014

European J Soil Science

View full text Add to dashboard Cite

Summary The objective of this study was to test a simple input‐output model to estimate soil phosphorus (P) retention over 12 years in a Mediterranean pasture. A 6‐ha permanent pasture field in Southern Portugal was subjected to different management systems in terms of grazing and fertilizer application. The soil and pasture were monitored and samples were geo‐referenced with RTK GPS. The model was developed to explain the effect of P fertilizer, based on the premise that P added through fertilizer and amounts removed in harvested plant products are the main fluxes affecting available P status, and was used to estimate the soil P retention. The results show that P fertilizer addition to Mediterranean grazed pastures on shallow soils influences several P dynamics under different grassland management systems. A positive linear relationship between the P budgets and the changes in measured P was demonstrated over the study periods. This work highlights the difficulty associated with the creation of recommendation maps for differentiated P fertilizer application in pastoral systems and indicates that before any accurate decision making, the historic knowledge of changes in the concentrations of P in the soil should be considered, as well as a prediction of the residual effects of applied nutrient. The importance of this knowledge increases when the aim is to use techniques and technologies for variable‐rate fertilizer application and implementation of site‐specific management strategies in the context of precision agriculture.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil phosphorus retention in a Mediterranean pasture subjected to differential management

Serrano

Shahidian

Silva

2014

European J Soil Science

View full text Add to dashboard Cite

show abstract

“…Recently, a few studies on grassland, savanna, and forest were also reported (Fabre et al, 1996;Chen et al, 2003;Styles and Coxon, 2007). However, the conflicting seasonal patterns were observed for soil P fractions, especially for labile P and microbial biomass P due to the varied climates, soils, and vegetation types (Oberson et al, 1999;Picone et al, 2003;Styles and Coxon, 2007). Moreover, most of these studies were conducted in tropical or humid temperate regions where water may not be a limiting factor.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variations in phosphorus fractions in semiarid sandy soils under different vegetation types

Zhao

Zeng

Fan

et al. 2009

Forest Ecology and Management

View full text Add to dashboard Cite

“…The rapid turnover of P in the microbial pool may contribute a major source to the available P pool, as P released from the microbial biomass is highly available to plant uptake, and also the microbial immobilization of inorganic P protects the P from physico-chemical fixation (Gijsman et al 1997;Oberson et al 2001). Field observations indicate that seasonal variations in soil microbial biomass P are closely associated with plant P uptake (He et al 1997;Chen et al 2003;Picone et al 2003). Furthermore, although the majority of inorganic P in highly weathered soils is chemically bound with secondary minerals such as Fe-and Al-oxides and their hydrous oxides and so of low solubility (Syers and Curtin 1988), some specific species of soil microorganisms are able to release P from these minerals (Schweizer 1994;Illmer et al 1995;Gressel et al 1996;He and Zhu 1998;Frossard et al 2000;Chen and He 2002;George et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Dynamics in microbial immobilization and transformations of phosphorus in highly weathered subtropical soil following organic amendments

Huang

Xiao

et al. 2006

Plant Soil

View full text Add to dashboard Cite

To improve knowledge on the role of microbial processes in phosphorus (P) transformations in highly weathered subtropical soil, dynamics in microbial biomass C (B C ) and P (B P ), and Olsen-P in a subtropical Ultisol following amendments with glucose at 2 g C kg -1 soil (G2) and rice straw at 2 and 4 g C kg -1 soil (RS2 and RS4) was studied during a 43-day incubation period at 25°C and 45% of soil water-holding capacity. By 3 days, the amount of soil B C had increased about 3.2, 1.7, and 2.6 times for G2, RS2, and RS4, respectively. The amount of soil B C significantly decreased between 3 and 7 days for G2 and 3 and 14 days for RS4, and thereafter remained almost steady throughout the 43-day incubation period, at levels about 1.6-2.4 times larger than for the control (no organic amendment; CK). The amount of soil B P for G2 and RS4 almost doubled by 3 or 7 days, then remained relatively steady, and for RS2, maintained relatively constant (6.7-8.2 mg kg -1 soil) throughout 43-day incubation period, whereas it declined by about 50% for CK. A significant decrease (3.5 mg kg -1 soil) in Olsen-P occurred in G2 by 3 days; indicating a close response of available P to microbial immobilization. Also, the amounts of Al-and Fe-bound P in G2 and Fe-bound-P in RS4 decreased significantly, as determined at 43 days. In conclusion, organic amendment enhances microbial immobilization and transformations of P, but the turnover of B P behaves in different patterns as B C in highly weathered subtropical soil.

show abstract

Phosphorus transformations as affected by sampling date, fertilizer rate and phosphorus uptake in a soil under pasture

Cited by 17 publications

References 20 publications

Soil phosphorus retention in a Mediterranean pasture subjected to differential management

Soil phosphorus retention in a Mediterranean pasture subjected to differential management

Seasonal variations in phosphorus fractions in semiarid sandy soils under different vegetation types

Dynamics in microbial immobilization and transformations of phosphorus in highly weathered subtropical soil following organic amendments

Contact Info

Product

Resources

About