Addition of bacterial consortium produced high-quality sugarcane bagasse compost as an environmental-friendly fertilizer: Optimizing arecanut (Areca catechu L.) production, soil fertility and microbial community structure

文献类型： 外文期刊

第一作者： Liu, Hailin

作者： Liu, Hailin;Li, Dong;Zhu, Zhiqiang;Liu, Hailin;Huang, Yanyan;Lin, Qinghuo;Huang, Lina;Cheng, Shimin;Sun, Shaolong

作者机构：

关键词： Composting; Compost product; Arecanut orchard; Soil quality; Soil microbiome

期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：4.8； 五年影响因子：5.1 ）

ISSN： 0929-1393

年卷期： 2023 年 188 卷

页码：

收录情况： SCI

摘要： Sugarcane bagasse is one of the world's largest in volume agricultural waste, converting sugarcane bagasse into valuable compost is of great significance for the sustainable management of tropical soils. However, the traditional composting of sugarcane bagasse generates a low-quality compost product due to sugarcane bagasse is lignocellulose-rich agricultural waste. Moreover, the influence of compost on soil properties, and crop production in tropical soils has not been sufficiently explored yet. Consequently, the aim of this study was to 1) investigate the influence of bacterial consortium on the composting process of sugarcane bagasse mixed with chicken manure; and 2) evaluate the impact of traditional compost (CP), compost prepared by adding bacterial consortium (CP + BC), and CP + BC mixed with chemical fertilizers (CP + BC + CF) on arecanut production and soil quality. Supplementation of the compost with bacterial consortium shortened the heating period by 2 days, prolonged the thermophilic period by 8.33-12.5 %, and reduced the temperature to near the ambient temperature on day 40. The final C/N ratio of the compost after bacterial consortium (0.4 %) supplementation was 12.8 % lower compared to no supplementation, and the total nitrogen and nitrate nitrogen increased by 17.5 % and 254 %, respectively. Compared with chemical fertilizers (CF), the compost application did not significantly affect arecanut yield and leaf nutrient content, but improved the soil properties. The total nitrogen increased from 1.08 in CF to 2.11 g/ kg in CP + BC + CF, and soil organic matter increased from 20.9 in CF to 41.4 g/ kg in CP + BC, while pH increased from 4.69 in CF to 6.18 in CP + BC + CF. The compost application also reshaped soil bacterial community ecology in the arecanut orchard, and the bacterial consortium-enhanced compost mixed with a low dose of chemical fertilizers was the optimal treatment.

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