The fate of fertiliser P in soil under pasture and uptake by subterraneum clover – a field study using 33P-labelled single superphosphate

McLaren, Timothy I.; McLaughlin, Michael J.; McBeath, Therese M.; Simpson, Richard J.; Smernik, Ronald J.; Guppy, Christopher N.; Richardson, Alan

doi:10.1007/s11104-015-2610-6

Cited by 24 publications

(6 citation statements)

References 78 publications

(114 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This benefit is observed in the longer term (Oliveira et al., 2019), in a manner similar to its use as a P correction source. In these situations, crop nutrition depends little on recently applied P fertilizer, where soil is the main provider of P to the plants (Mclaren et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

et al. 2020

View full text Add to dashboard Cite

There are concerns related to the application of phosphate fertilizers to weathered soils that present low soil test phosphorus (STP) due to P adsorption in iron oxyhydroxides. Furthermore, long-term trials are needed to evaluate crop response to corrective P fertilization and its interaction with different maintenance P fertilization strategies in these soils. An experiment involving the combination of three initial corrective P fertilization schemes (control without P correction or with the application of 105 kg P ha −1 as triple superphosphate [TSP] or reactive rock phosphate [RRP]), four P maintenance strategies (a control without the application of maintenance P, or 35 kg P ha −1 yr −1 as TSP, RRP, or a mix of both) and two application methods was cultivated during 16 yr at the Embrapa Cerrados experimental station in Planaltina, DF, Brazil. Corrective P fertilization promoted an early crop yield response. In contrast, high crop yields were only obtained in control treatments with no corrective P fertilization after soil P stocks were increased to a minimum level. With increasing P stocks, broadcast application resulted in slightly better yields. The required residual P stocks in soil to obtain high yields were estimated as equivalent to 113.6 and 205.2 kg P ha −1 for TSP and RRP, respectively. These values allow for STP contents to increase to critical levels, whose value for TSP of 4.1 mg kg −1 Mehlich-1 P is below that recommended for the region, possibly due to the contribution of organic P forms in the long-term no-tillage system.

show abstract

Section: Discussionmentioning

confidence: 99%

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

et al. 2020

View full text Add to dashboard Cite

show abstract

“…During a growing season, only a small fraction of the P added to a soil is removed at harvest time, leaving a fraction of it available for subsequent crops (McLaren et al, 2016). That fraction is called the residual value of the P applied (Syers et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Residual value of the phosphate added to ecuadorian and chilean soils with different phosphorus retention capacity

Vásconez

Pinochet

2018

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

The residual value of phosphorus addition is described by two reactions: a quick initial reaction followed by a slower reaction over time. In this study, the residual effect of two P sources was evaluated: monopotassium phosphate (MKP) and triple superphosphate (TSP) added to soils from Ecuador and Chile with contrasting soil P retention capacity. Olsen-P extractability was measured and compared in soil samples 1, 2, 4, 8, 15, 45, 90, 180 and 360 days after the addition. The Olsen-P extracted at 24 hours after the P addition varied among soils, and extracted between 10 and 66% of the P added depending upon the soil, with lower extraction values in soils with high P retention capacity. When the source was TSP, only approximately 70% of P was extracted compared to that extracted when MKP was added. After the phosphate addition there was a clear initial effect followed by a progressive loss of Olsen-P extractability. Furthermore, over time, a state of quasi-equilibrium or a stationary state become evident in which the loss of P extractability was minimal. When the initial effect was removed, as a point that characterizes different types of soils, the loss of P extractability was similar among soils, and reflects the amount of phosphate added despite the type of fertilizer used.

show abstract

“…Gains are being made through better management practices, such as improved matching of plant need and supply of fertilizer applications. However, McLaren et al ( 2015 ) demonstrated that the majority of the fertilizer P applied to two Australian pasture soils became sorbed to the soil in inorganic and organic P pools, with only 35% being taken up by clover plants in the year of application. Therefore, there is interest in ways to make the soil P more bioavailable using plant traits (Faucon et al 2017 ; Kidd et al 2016 ; Wendling et al 2016 ), microbial cycling (Richardson and Simpson 20211 ), and, more recently, intercropping (Xue et al 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Inter- and intra-species intercropping of barley cultivars and legume species, as affected by soil phosphorus availability

et al. 2017

View full text Add to dashboard Cite

Aims Intercropping can improve plant yields and soil phosphorus (P) use efficiency. This study compares inter-and intra-species intercropping, and determines whether P uptake and shoot biomass accumulation in intercrops are affected by soil P availability. Methods Four barley cultivars (Hordeum vulgare L.) and three legume species (Trifolium subterreneum, Ornithopus sativus and Medicago truncatula) were selected on the basis of their contrasting root exudation and morphological responses to P deficiency. Monocultures and barley-barley and barley-legume intercrops were grown for 6 weeks in a pot trial at very limiting, slightly limiting and excess available soil P. Aboveground biomass and shoot P were measured. Results Barley-legume intercrops had 10-70% greater P accumulation and 0-40% greater biomass than monocultures, with the greatest gains occurring at or below the sub-critical P requirement for barley. No benefit of barley-barley intercropping was observed. The plant combination had no significant effect on biomass and P uptake observed in intercropped treatments.Conclusions Barley-legume intercropping shows promise for sustainable production systems, especially at low soil P. Gains in biomass and P uptake come from inter-rather than intra-species intercropping, indicating that plant diversity resulted in decreased competition between plants for P.

show abstract

The fate of fertiliser P in soil under pasture and uptake by subterraneum clover – a field study using 33P-labelled single superphosphate

Cited by 24 publications

References 78 publications

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

Residual value of the phosphate added to ecuadorian and chilean soils with different phosphorus retention capacity

Inter- and intra-species intercropping of barley cultivars and legume species, as affected by soil phosphorus availability

Contact Info

Product

Resources

About