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Soil properties and growing duration determine phosphorus phyto-availability dynamics of polyphosphate versus orthophosphate fertilizers
Year:
2023
Source of publication :
Plant and Soil
Authors :
Erel, Ran
;
.
Volume :
Co-Authors:
  • Ran Erel, 
  • David Yalin, 
  • Adi Kushmaro-Bier, 
  • Qianqian Li, 
  • Frédéric Gérard 
  • Natalie Toren 
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Purpose
Polyphosphate (poly-P) fertilizers were proposed to increase the low phosphorus use efficiency (PUE) of orthophosphate (ortho-P) fertilizer but empirical data is inconsistent. Our study is aimed at investigating how soil properties, application time, and growth duration affect their phyto-availability.

Methods

Olsen-P dynamics were monitored using six soils amended with either ortho-P or poly-P. Subsequently, two contrasting soils (sandy and loamy) were selected to estimate P availability to plants using wheat as a model plant. Mechanistic modelling was used to interpret P dynamics in these experiments.

Results
For poly-P amended soils, Olsen-P increased continuously, while using ortho-P fertilizer the highest values were attained right after application and then monotonously decreased afterward. Olsen-P dynamics varied greatly among soils depending on their sorption capacity and related properties. In sandy soils, Olsen-P was consistently higher for ortho-P. In highly calcareous soils, Olsen-P was higher for poly-P after three weeks. Plant experiments confirmed a greater uptake of poly-P over ortho-P in loamy soil and extended trials (4 months) but not in sandy soils or short-term trials (4 weeks). Geochemical modeling suggested that complexation of soil Ca by poly-P reduced long-term P immobilization.


Conclusions

Soil properties and growth duration affect the efficiency of ortho-P vs. poly-P fertilizers. In clayey soils and extended growth duration, poly-P fertilizer can enhance PUE due to its prolonged phyto-availability as compared to ortho-P. In sandy soils and short growth duration poly-P has little advantage. The complexation of Ca by poly-P may have caused the increase of P phyto-availability.

Note:
Related Files :
Ammonium polyphosphate fertilizer
Geochemical modelling
Olsen-P
Phosphate utilization efficiency
wheat
Show More
Related Content
More details
DOI :
10.1007/s11104-022-05830-6
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
63285
Last updated date:
22/01/2023 17:01
Creation date:
22/01/2023 17:01
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Scientific Publication
Soil properties and growing duration determine phosphorus phyto-availability dynamics of polyphosphate versus orthophosphate fertilizers
  • Ran Erel, 
  • David Yalin, 
  • Adi Kushmaro-Bier, 
  • Qianqian Li, 
  • Frédéric Gérard 
  • Natalie Toren 
Soil properties and growing duration determine phosphorus phyto-availability dynamics of polyphosphate versus orthophosphate fertilizers

Purpose
Polyphosphate (poly-P) fertilizers were proposed to increase the low phosphorus use efficiency (PUE) of orthophosphate (ortho-P) fertilizer but empirical data is inconsistent. Our study is aimed at investigating how soil properties, application time, and growth duration affect their phyto-availability.

Methods

Olsen-P dynamics were monitored using six soils amended with either ortho-P or poly-P. Subsequently, two contrasting soils (sandy and loamy) were selected to estimate P availability to plants using wheat as a model plant. Mechanistic modelling was used to interpret P dynamics in these experiments.

Results
For poly-P amended soils, Olsen-P increased continuously, while using ortho-P fertilizer the highest values were attained right after application and then monotonously decreased afterward. Olsen-P dynamics varied greatly among soils depending on their sorption capacity and related properties. In sandy soils, Olsen-P was consistently higher for ortho-P. In highly calcareous soils, Olsen-P was higher for poly-P after three weeks. Plant experiments confirmed a greater uptake of poly-P over ortho-P in loamy soil and extended trials (4 months) but not in sandy soils or short-term trials (4 weeks). Geochemical modeling suggested that complexation of soil Ca by poly-P reduced long-term P immobilization.


Conclusions

Soil properties and growth duration affect the efficiency of ortho-P vs. poly-P fertilizers. In clayey soils and extended growth duration, poly-P fertilizer can enhance PUE due to its prolonged phyto-availability as compared to ortho-P. In sandy soils and short growth duration poly-P has little advantage. The complexation of Ca by poly-P may have caused the increase of P phyto-availability.

Scientific Publication
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