ArticleScientific reports2016
Microprofiling of nitrogen patches in paddy soil: Analysis of spatiotemporal nutrient heterogeneity at the microscale.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed.
- Carbon components in organic amendments drive nitrogen metabolism in one-year-long anaerobic soil microcosms.Frontiers in microbiology · 2025Article
- Contribution of mycorrhizal symbiosis and root strategy to red clover aboveground biomass under nitrogen addition and phosphorus distribution.Mycorrhiza · 2024Article
- Transcription factor module NLP-NIGT1 fine-tunes NITRATE TRANSPORTER2.1 expression.Plant physiology · 2023Article
- Potato tillage method is associated with soil microbial communities, soil chemical properties, and potato yield.Journal of microbiology (Seoul, Korea) · 2022Article
- The intersection of nitrogen nutrition and water use in plants: new paths toward improved crop productivity.Journal of experimental botany · 2020Review
- Nitrogen Addition Decreases Dissimilatory Nitrate Reduction to Ammonium in Rice Paddies.Applied and environmental microbiology · 2018Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Flooded paddy soil ecosystems in the tropics support the cultivation of the majority of the world's leading crop, rice, and nitrogen (N) availability in the paddy-soil rooting zone limits rice production more than any other nutritional factor. Yet, little is known about the dynamic response of paddy soil to N-fertiliser application, in terms of horizontal and vertical patchiness in N distribution and transformation. Here, we present a microscale analysis of the profile of ammonium (NH4(+)) and nitrate (NO3(-)), nitrification, oxygen (O2water and O2soil), and pH (pHwater and pHsoil) in paddy soils, collected from two representative rice-production areas in subtropical China. NH4(+) and NO3(-) exhibited dramatic spatiotemporal profiles within N patches on the microscale. We show that pHsoil became constant at 1.0-3.5 mm depth, and O2soil became undetectable at 1.7-4.0 mm. Fertiliser application significantly increased pH, and decreased O2, within N patches. Path analysis showed that the factors governing nitrification scaled in the order: pHwater > pHsoil > NH4(+) > O2water > NO3(-) > O2soil. We discuss the soil properties that decide the degree of nutrient patchiness within them and argue that such knowledge is critical to intelligent appraisals of nutrient-use efficiencies in the field.
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Registered trials
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