Simulating long-term phosphorus, nitrogen, and carbon dynamics to advance nutrient assessment in dryland cropping

Das, Bianca T.; Schmidt, Susanne; Biggs, J. S.; Lester, David W.; Bourne, Nicholas; Huth, Neil

doi:10.1016/j.fcr.2022.108590

Field Crops Research

2022

DOI: 10.1016/j.fcr.2022.108590

|View full text |Cite

Simulating long-term phosphorus, nitrogen, and carbon dynamics to advance nutrient assessment in dryland cropping

Bianca T. Das

Susanne Schmidt²,

J. S. Biggs³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article4

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Towards a better understanding of soil nutrient dynamics and P and K uptake

Schut,

Reymann

2023

Plant Soil

View full text Add to dashboard Cite

Aim Balanced crop nutrition is key to improve nutrient use efficiency and reduce environmental impact of farming systems. We developed and tested a dynamic model to predict the uptake of P and K in long-term experiments to better understand how changes in soil nutrient pools affect nutrient availability in crop rotations. Methods Our RC-KP model includes labile and stable pools for P and K, with separate labile pools for placed P and organic fertilizers including farm yard manure (FYM). Pool sizes and crop-specific relative uptake rates determined potential uptake. Actual crop uptake from labile pools was based on concepts developed by Janssen et al. (Geoderma 46:299-318, 1990). The model was calibrated on three long-term experiments from Kenia (Siaya), Germany (Hanninghof) and the United Kingdom (Broadbalk) to estimate parameter values for crop-specific relative uptake rates and site-specific relative transfer rates. Results The model described N, P and K uptake accurately with a Nash-Sutcliff modelling efficiency of 0.6–0.9 and root mean squared errors of 2.6–3.4 kg P ha−1 and 14–20 kg K ha−1. Excluding organic labile pools did not affect model accuracy in Broadbalk in contrast to Hanninghof where Mg deficiencies affected crop uptakes in treatments without Mg or FYM. Conclusions This relatively simple model provides a novel approach to accurately estimate N, P and K uptake and explore short- and long-term effects of fertilizers in crop rotations. Interactions between limiting nutrients affecting actual nutrient uptake were captured well, providing new options to include N, P and K limitations in crop growth models.

show abstract

Towards a better understanding of soil nutrient dynamics and P and K uptake

Schut,

Reymann

2023

Plant Soil

View full text Add to dashboard Cite

show abstract

Key drivers of phosphorus use efficiency (PUE) in a dryland cropping system

Das,

Schmidt,

Harrison

et al. 2023

Agron. Sustain. Dev.

View full text Add to dashboard Cite

Crop response to nitrogen-phosphorus colimitation: theory, experimental evidences, mechanisms, and models. A review

Seghouani,

Bravin,

Mollier

2024

Agron. Sustain. Dev.

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Simulating long-term phosphorus, nitrogen, and carbon dynamics to advance nutrient assessment in dryland cropping

Cited by 4 publications

References 42 publications

Towards a better understanding of soil nutrient dynamics and P and K uptake

Towards a better understanding of soil nutrient dynamics and P and K uptake

Key drivers of phosphorus use efficiency (PUE) in a dryland cropping system

Crop response to nitrogen-phosphorus colimitation: theory, experimental evidences, mechanisms, and models. A review

Contact Info

Product

Resources

About