Biochar alters maize growth, mycorrhizal associations and fall armyworm performance

IF 3.9 2区农林科学 Q1 AGRONOMY

Plant and Soil Pub Date : 2024-08-07 DOI:10.1007/s11104-024-06874-6

José Alfredo Rivera-García, Tsiri Díaz, Hexon Ángel Contreras-Cornejo, John Larsen, Carlos Ernesto González-Esquivel, Luis López-Pérez, Ornella Barreto-Barriga, David Alfonso Ortiz-Salgado, Raúl Omar Real-Santillán

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引用次数: 0

Abstract

Background and aims

Biochar is a carbon source employed to improve soil properties, promoting plant health and nutrition in agroecosystems. Root associated microorganisms such as arbuscular mycorrhizal fungi (AMF) are also used as bioinoculants in combination with biochar to provide eco-friendly alternatives for crop production under unfavorable growth conditions. However, information on the effects of biochar on multitrophic interactions of plants with herbivorous insects is limited. Therefore, the objective of this work was to evaluate the effect of biochar and arbuscular mycorrhizae on plants and herbivorous insects.

Methods

We established a multifactorial experiment with maize plants, AMF (two strains, Rizhophagus irregularis and a native consortium) and the Fall Armyworm Spodoptera frugiperda with and without soil application of biochar. Variables of biomass, plant nutrition, mycorrhizal colonization and performance of herbivorous insects were measured.

Results

We found that biochar reduced insect herbivory and promoted mycorrhizal association in maize. However, plant growth was reduced. Additionally, AMF increased the weight of fall armyworm larvae.

Conclusion

Our results show that biochar influences maize plant development, AMF, and fall armyworm performance, but did not affect interactions between these below- and above ground components.

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生物炭能改变玉米生长、菌根结合和秋绵虫的表现

背景和目的生物炭是一种碳源，用于改善土壤性质，促进农业生态系统中植物的健康和营养。根相关微生物（如丛枝菌根真菌（AMF））也被用作与生物碳相结合的生物絮凝剂，为不利生长条件下的作物生产提供生态友好型替代品。然而，有关生物炭对植物与食草昆虫的多营养交互作用的影响的信息还很有限。因此，这项工作的目的是评估生物碳和丛枝菌根对植物和草食性昆虫的影响。方法我们用玉米植物、AMF（两种菌株，Rizhophagus irregularis 和一种本地菌群）和秋军虫（Spodoptera frugiperda）进行了一项多因素实验，实验中是否施用了生物碳。对生物量、植物营养、菌根定殖和食草昆虫的表现等变量进行了测量。然而，植物的生长却有所下降。结论我们的研究结果表明，生物炭会影响玉米植株的生长发育、AMF 和秋刺吸虫的表现，但不会影响这些地下和地上部分之间的相互作用。

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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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