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Biogas Slurry Significantly Improved Degraded Farmland Soil Quality and Promoted Capsicum spp. Production

文献类型： 外文期刊

作者： Wang, Zichen 1 ; Sanusi, Isaac A. 2 ; Wang, Jidong 1 ; Ye, Xiaomei 3 ; Kana, Evariste Gueguim 2 ; Olaniran, Ademola O. 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

2.Univ KwaZulu Natal, Sch Life Sci, Discipline Microbiol, ZA-3201 Pietermaritzburg, South Africa

3.Minist Agr & Rural Affairs, Key Lab Crop & Livestock Integrated Farming, Nanjing 210014, Peoples R China

4.Minist Agr & Rural Affairs, Key Lab Saline Alkali Soil Improvement & Utilizat, Nanjing 210014, Peoples R China

5.Natl Agr Environm, Liuhe Observat & Expt Stn, Nanjing 210014, Peoples R China

关键词： biogas slurry; plant-environment interaction; soil fertility increase and maintenance; liquid digestate; salt-affected soil; improvement; eco-restoration

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 2 期

页码：

收录情况： SCI

摘要： This study reports on the effects of pretreated biogas slurry on degraded farm soil properties, microflora and the production of Capsicum spp. The responses of soil properties, microorganisms and Capsicum spp. production to biogas slurry pretreated soil were determined. The biogas slurry pretreatment of degraded soil increases the total nitrogen (0.15-0.32 g/kg), total phosphorus (0.13-0.75 g/kg), available phosphorus (102.62-190.68 mg/kg), available potassium (78.94-140.31 mg/kg), organic carbon content (0.67-3.32 g/kg) and pH value of the soil, while the population, diversity and distribution of soil bacteria and fungi were significantly affected. Interestingly, soil ammonium nitrogen, soil pH and soil nitrate nitrogen were highly correlated with the population of bacteria and fungi present in the pretreated soil. The soil with biogas slurry pretreatment of 495 m(3)/hm(2) favored the seedling survival rate, flowering rate and fruit-bearing rate of Capsicum spp. and significantly reduced the rate of rigid seedlings. In this study, the application of 495 m(3)/hm(2) biogas slurry to pretreat degraded soil has achieved the multiple goals of biogas slurry valorization, soil biofertilization and preventing and controlling plant diseases caused by soil-borne pathogenic microorganisms. These findings are of significant importance for the safe and environmentally friendly application of biogas slurry for soil pretreatment.

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