Recycling of agricultural waste through anaerobic composting and its impact on soil biochemical health and Zea mays productivity

IF 3 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Journal of Material Cycles and Waste Management Pub Date : 2025-04-21 DOI:10.1007/s10163-025-02221-8

Rabia Asghar, Muhammad Abdullah Aziz, Mohammad K. Okla, Ijaz Ali, Bismillah Khan, Jawaher Alkahtani, Tanveer Iqbal, Jean Wan Hong Yong

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Abstract

Composting of organic wastes is considered a distinguished approaches to effectively diminish waste volume while simultaneously maximizing energy production potential. Three types of feedstocks were selected for composting where we thoroughly monitored the production of CO, CH₄ and H₂S. Additionally, produced compost was applied in soil and investigated its impact on soil nutrient stock and microbial activity along with maize productivity. In our results, maximum production of biogases was observed between 5 and 6th week under cow dung (CD) feedstock. Co-application of all three biomasses along with chemical fertilizers increased soil NO₃-N, NH₄-N, Olsen P and K significantly by 171, 179, 53 and 22% respectively against control under pot experiment. Similarly, soil microbial biomass for instance microbial biomass C, N and P improved by 27, 112 and 83% respectively, meanwhile soil URE, DEH, PHO and PRO also showed their maximum activity under the integrated application of composts and chemical fertilizers. Plant height (15.43%), leaf area index (43%), chlorophyll content (74%) and grain yield (42) substantially improved under the combined treatment of CW + CD + SS and CF. We concluded that anaerobic digestion of biodegradable wastes produced substantial amounts of biogases as well as valuable compost, whose application to soil significantly improved soil physiochemical and maize productivity.

Graphical abstract

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农业废弃物厌氧堆肥循环利用及其对土壤生化健康和玉米产量的影响

有机废物堆肥被认为是一种有效减少废物量，同时最大限度地提高能源生产潜力的独特方法。选择了三种类型的原料进行堆肥，我们彻底监测了CO， CH4和H2S的生产。此外，将生产的堆肥施用于土壤中，研究其对土壤养分储量和微生物活性以及玉米生产力的影响。在我们的研究结果中，在牛粪（CD）原料下，在第5周至第6周之间观察到最大的沼气产量。在盆栽试验中，3种生物质与化肥配施使土壤NO3-N、NH4-N、Olsen P和K分别较对照显著提高了171、179、53和22%。土壤微生物生物量，如微生物生物量C、N、P分别提高了27,112和83%，土壤URE、DEH、PHO和PRO在堆肥和化肥配施下也表现出最大的活性。CW + CD + SS和CF组合处理显著提高了玉米株高（15.43%）、叶面积指数（43%）、叶绿素含量（74%）和籽粒产量（42%）。综上所述，可生物降解废弃物厌氧消化产生了大量的生物气体和有价值的堆肥，其施用显著提高了土壤的理化和玉米生产力。图形抽象

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来源期刊

Journal of Material Cycles and Waste Management 环境科学-环境科学

CiteScore

5.30

自引率

16.10%

发文量

205

审稿时长

4.8 months

期刊介绍： The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles. The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management. The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).