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Alleviating soil degradation caused by watermelon continuous cropping obstacle: Application of urban waste compost

文献类型： 外文期刊

作者： Ding, Sheng 1 ; Zhou, Deping 5 ; Wei, Huawei 1 ; Wu, Shuhang 5 ; Xie, Bing 1 ;

作者机构： 1.East China Normal Univ, Shanghai Engn Res Ctr Biotransformat Organ Solid, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China

2.East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China

3.East China Normal Univ, Engn Res Ctr Nanophoton & Adv Instrument, Minist Educ, Shanghai 200241, Peoples R China

4.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

5.Shanghai Acad Agr Sci, Ecoenvironm Protect Inst, Shanghai 201403, Peoples R China

关键词： Continuous cropping obstacle; Soil quality; Microbial community structure; Compost

期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）

ISSN： 0045-6535

年卷期： 2021 年 262 卷

页码：

收录情况： SCI

摘要： Soil degradation caused by watermelon continuous cropping obstacle is a serious problem in China. Compost, as a soil conditioner, has great potential in improving soil degradation. In order to explore how compost affects the soil quality under continuous cropping obstacle, associations among soil chemical characteristics, microbial community structures and agronomic variables were analyzed and compared. Results showed that soil pH, available potassium, alkali-hydrolyzable nitrogen and organic matter changed significantly after using maize straw compost and sludge compost, which indicated the feasibility of composts as soil remediations. This is also reflected on the significant changes of soil microbial community. Mizugakiibacter, as the main reason of watermelon continuous cropping obstacle, decreased significantly after using compost products. It also showed a negative connection with most chemical characteristics. Rhodanobacter and Galbibacter increased significantly after using compost products, which were positively related to most chemical characteristics. The increase of them was helpful to reduce Mizugakiibacter. Beneficial bacteria were positively related to beneficial fungi (Chaetomium and Chrysosporium). The increase of them and the decrease of Verticillium also helped to improve microbial community structure. The results indicated that compost as a useful and inexpensive technique could alleviate soil degradation caused by watermelon continuous cropping obstacle. (C) 2020 Elsevier Ltd. All rights reserved.

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