Tradeoffs among plant yield, nitrate accumulation risk, and potential pathogen: Effects of citric acid and nitrification inhibitors on soil–plant systems

IF 3.9 2区农林科学 Q1 AGRONOMY

Plant and Soil Pub Date : 2024-08-06 DOI:10.1007/s11104-024-06875-5

Yan Wang, Rebecca Ford, Xinhong Gan, Minzhe Zhou, Bin Ma, Fang Wang, Manyun Zhang

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引用次数: 0

Abstract

Aims

Plant yield, nitrate accumulation risk, and the potential pathogenic microorganism are critical parameters in evaluating soil fertility management. The nitrate content in the soil–plant system is substantially driven by soil abiotic properties and soil and endophytic microorganisms which are also potential resources of plant pathogenicity. This study aimed to quantify the effects of citric acid (CA), alone or with dicyandiamide (DCD) and 3, 4-dimethylpyrazole phosphate (DMPP), on plant yield, nitrate accumulation risk and potential pathogenicity of soil–plant system.

Methods

Our study contained six treatments: (1) control without CA or nitrification inhibitor (CK); (2) sole DCD application treatment (DCT); (3) sole DMPP application treatment (DMT); (4) sole CA application treatment (CAT); (5) CA + DCD application treatment (CADCT) and (6) CA + DMPP application treatment (CADMT). The nitrate contents, plant yields, and bacterial communities in soil and plant samples were analyzed.

Results

The CA significantly reduced soil nitrate contents by 29.8%. Relative to sole CA application, extra nitrification inhibitor application significantly enhanced plant yields and decreased plant nitrate contents. The exclusive CA application could significantly stimulate the soil Actinobacteriota but reduce the soil pathogenicity, but extra nitrification inhibitors led to higher potential soil pathogenicity.

Conclusions

The single CA application could decrease nitrate accumulation risk and mitigating potential soil pathogenicity damage, while extra nitrification inhibitor application would intensify the performances of CA in decreasing plant nitrate accumulation but potentially enhancing the pathogenic. It deserves to emphasize the consideration of the tradeoffs among plant yield, nitrate accumulation risk, and potential pathogen risk when evaluating the effects of CA and nitrification inhibitors.

Abstract Image

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植物产量、硝酸盐积累风险和潜在病原体之间的权衡：柠檬酸和硝化抑制剂对土壤-植物系统的影响

目的植物产量、硝酸盐积累风险和潜在病原微生物是评估土壤肥力管理的关键参数。土壤-植物系统中的硝酸盐含量主要受土壤非生物特性以及土壤和内生微生物的影响，而这些微生物也是植物致病的潜在资源。本研究旨在量化柠檬酸（CA）单独或与双氰胺（DCD）和 3，4-二甲基吡唑磷酸盐（DMPP）一起使用对植物产量、硝酸盐积累风险和土壤-植物系统潜在致病性的影响：(研究包括六个处理：（1）不施用 CA 或硝化抑制剂的对照组（CK）；（2）单独施用 DCD 的处理（DCT）；（3）单独施用 DMPP 的处理（DMT）；（4）单独施用 CA 的处理（CAT）；（5）施用 CA + DCD 的处理（CADCT）；（6）施用 CA + DMPP 的处理（CADMT）。对土壤和植物样本中的硝酸盐含量、植物产量和细菌群落进行了分析。与单独施用 CA 相比，额外施用硝化抑制剂可显著提高植物产量并降低植物硝酸盐含量。结论单一施用 CA 可降低硝酸盐累积风险并减轻潜在的土壤致病性损害，而额外施用硝化抑制剂将增强 CA 在降低植物硝酸盐累积方面的性能，但有可能增强致病性。值得强调的是，在评估 CA 和硝化抑制剂的效果时，应考虑植物产量、硝酸盐积累风险和潜在病原风险之间的权衡。

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来源期刊

Plant and Soil 农林科学-农艺学

CiteScore

8.20

自引率

8.20%

发文量

543

审稿时长

2.5 months

期刊介绍： Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.

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