Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Melo, Wanderley José de; Delarica, Denise de Lima Dias; Guedes, Ana Carolina Trisltz Perassolo; Lavezzo, L. F.; Donha, Riviane Maria Albuquerque; Araújo, Ademir de; Melo, Gabriel; Macedo, Fernando Giovannetti de

doi:10.1016/j.scitotenv.2018.06.254

Cited by 84 publications

(42 citation statements)

References 54 publications

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“…These residues have high contents of organic matter and mineral elements capable of improving the chemical, physical, and biological properties of the soil. However, these residues may contain trace elements, pathogens, and many other substances that cause environmental damages [26,27].…”

Section: Contamination Of Soilsmentioning

confidence: 99%

“…However, ecotoxicological studies conducted in terrestrial environments remain relatively incipient in comparison to the ones involving aquatic environments. Most studies in this field are concentrated in Northern countries, and this evidence highlights the need of verifying the possible impacts of this situation on the soil of different regions of the world [27,30].…”

Section: Biomarkers and Bioindicatorsmentioning

confidence: 99%

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Ecotoxicological Tests as a Tool to Assess the Quality of the Soil

Clasen¹,

Lisbôa²

2019

Soil Contamination and Alternatives for Sustainable Development

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Terrestrial ecotoxicology is used to evaluate the effects of substances that, whenever added to the soil, have impact on organisms and help measuring the responses from changes in the lethality, reproduction, development, and behavior of standardized soil organisms. Terrestrial ecotoxicology is a new tool that has been introduced in many countries, including Brazil, and yet little used. However, it is already widely used in Europe, besides being mandatory in research to indicate the toxicity of waste discharged in the soil. The aim of this chapter is to emphasize the importance and need of developing studies focused on the use of terrestrial ecotoxicology as a tool to assess fast and reliable responses from the toxicity of substances incorporated to the soil.

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Section: Contamination Of Soilsmentioning

confidence: 99%

Section: Biomarkers and Bioindicatorsmentioning

confidence: 99%

Ecotoxicological Tests as a Tool to Assess the Quality of the Soil

Clasen¹,

Lisbôa²

2019

Soil Contamination and Alternatives for Sustainable Development

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“…Enzymatic activities are also widely used indicators for their sensitivity to management change in agricultural systems, and provide information about soil microbial activity and biomass, the decomposition of organic matter, nutrient cycling, nutrient availability to crops, and other soil properties [37][38][39][40][41][42]. Among them, dehydrogenase (DH) and β-glucosidase (GL) are two frequently monitored enzymes [43,44].…”

Section: Introductionmentioning

confidence: 99%

Short-Term Effects of Changing Soil Management Practices on Soil Quality Indicators and Crop Yields in Greenhouses

Salinas

Meca²,

Torres

2020

Agronomy

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The short-term responses of soil quality indicators are important for assessing the effects of new management practices and addressing threats to crop yields in greenhouses. The aim of this study was to assess, during three consecutive cropping seasons, the effect of a sustainable management package (CRTMP)—which includes the on-site reuse of greenhouse crop residues and tillage—in comparison with conventional management, based on fertigation only (CMP), on certain biochemical soil quality indicators and crop yields. CRTMP significantly increased (p < 0.05) the values of total organic carbon (TOC), particulate organic carbon (POC), light fraction (LF), water soluble organic carbon (WSOC), and dehydrogenase (DH) and β-glucosidase (GL) activities at a depth of 0–15 cm, as well as the mean concentration of nitrates in the soil solution. In addition, a significant Pearson’s correlation (p < 0.01) found between the indicators suggested a balanced improvement of soil biological activity and nutritional soil state. Nonetheless, the significant (p < 0.05) increases in the mean concentration of chlorides in the soil solution and electrical conductivity (p < 0.05) increased the risk of salinization, which may have affected the concentration of nitrates in the petiole sap and total production in CRTMP, which were significantly lower than in CMP. Nevertheless, the proportion of premium product was significantly higher in CRTMP, while the proportion of non-commercial production decreased.

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“…This can be understood by few direct sewage sludge application studies. Melo et al [10] studied about the 10 years direct application of sewage sludge in tropical climatic conditions and compared with mineral fertilization. Their experimental evaluation resulted in better biogeochemical properties by sewage sludge application rather than mineral fertilization, conversely there is no systematic approach available for such an attempt so far.…”

Section: Introductionmentioning

confidence: 99%

Co-composting Versus Direct Ponding of Sewage Sludge on Soil Nutrients Redistribution

2019

IJRTE

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Depriving soil fertility serves as one major cause for reduced crop growth rate and production, which in turn affects the food productivity. Various soil conservation measures to sequester the soil nutrients are adopted in developing countries locally and conventionally. In another scenario, present day sewage treatment plants (STP) across the nation are struggling to treat the receiving water quantity effectively. The fluctuations in receiving quantity of waste water resulted in untreated excess sludge dumping in nearby places. In order to synergize the excess sludge dumping in a feasible way by land management practices, the present study aims to compare two methods of sludge incorporating into soil, namely co-composting and direct ponding. Samples were collected from two different plots receiving sludge for different duration (fresh and old) at different depths (12 cm, 24 cm and 36 cm) and analyzed for various physicochemical parameters. The study also highlights the co-composting of sewage sludge with other community wastes to contribute a better analogy on nutrient redistribution. The obtained results of 17.34 mg/l total organic carbon and 1.392 mg/l total nitrogen at 36cm depth in old sludge ponding sites reveals the improved capability of sludge leachate against the soil nutrient attenuation. It finds application in agricultural practice to promote crop growth under controlled conditions of sewage sludge amendment as ponding and co-composting.

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Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Cited by 84 publications

References 54 publications

Ecotoxicological Tests as a Tool to Assess the Quality of the Soil

Ecotoxicological Tests as a Tool to Assess the Quality of the Soil

Short-Term Effects of Changing Soil Management Practices on Soil Quality Indicators and Crop Yields in Greenhouses

Co-composting Versus Direct Ponding of Sewage Sludge on Soil Nutrients Redistribution

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