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Peach-Morchella intercropping mode affects soil properties and fungal composition

文献类型： 外文期刊

作者： Song, Haiyan 1 ; Chen, Dong 1 ; Sun, Shuxia 1 ; Li, Jing 1 ; Tu, Meiyan 1 ; Xu, Zihong 1 ; Gong, Ronggao 3 ; Jiang, Guoli 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Hort Res Inst, Chengdu, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Hort Crop Biol & Germplasm Creat Southwes, Chengdu, Peoples R China

3.Sichuan Agr Univ, Coll Hort, Chengdu, Peoples R China

关键词： Peach orchard; Intercropping; Morchella; Fungual diversity; Soil physicochemical property; Enzyme activity

期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）

ISSN： 2167-8359

年卷期： 2021 年 9 卷

页码：

收录情况： SCI

摘要： Objective. This study aims to explore a three-dimensional planting mode in orchards and provide theoretical basis for the efficient peach-Morchella planting and soil management after Morchella cultivation. Methods. Next-generation sequencing was performed to investigate the variations in soil physicochemical properties, enzyme activities and fungal composition under peach-Morchella intercropping for one year and two years, by using the soil without peach-Morchella intercropping as the control group. Results. Peach-Morchella intercropping decreased the soil bulk density, and significantly increased the maximum field capacity, non-capillary porosity and total porosity, organic matter, available potassium and available zinc, which together improved soil structure and soil fertility. Besides, the intercropping mode obviously enhanced soil enzyme activities and mineral absorption and transformation in peach orchard soils. The intercropping also resulted in a decline of soil fungal diversity, and the 2-year soil samples were of higher abundance of Zygomycota. More importantly, peach-Morchella intercropping elevated the yields of both peach and Morchella, bringing about obviously higher economic benefits. Conclusion. Continuous peach-Morchella intercropping improves the soil structure and fertility while decreases soil fungal diversity, which can contribute to greater economic benefits of the peach orchard. Our findings shed new light on the intercropping-fungus-soil relationship, and may facilitate the further development of peach-Morchella intercropping.

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