Residual effects of alkalized sewage sludge application on soil quality and sugarcane yield

Souza, Adriana Alves Batista de; Silva, William Ramos da; Nascimento, Clístenes Williams Araújo do; Silva, Ygor Jacques Agra Bezerra da; Biondi, Caroline Miranda

doi:10.1080/03650340.2022.2106369

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…The practice of ratooning creates an acidic environment characterized by low pH and fertility. Acidity in ratooning sugarcane is due to the release of organic acids from decomposing sugarcane residues and the depletion of soil calcium and magnesium (de Souza et al, 2023 ). This environment can lead to a decrease in soil bacterial diversity and nutrient availability, as many bacterial groups are sensitive to changes in soil pH.…”

Section: Discussionmentioning

confidence: 99%

Dynamics of rhizosphere bacterial communities and soil physiochemical properties in response to consecutive ratooning of sugarcane

et al. 2023

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Ratooning in sugarcane often leads to soil problems such as degradation, acidification, and soil-borne diseases that negatively impact agriculture output and sustainability. Understanding the alteration in bacterial communities, activities, and their diversity connected to the plant and soil under consecutive ratooning still needs to be clarified. To address this gap, multidisciplinary approaches such as Illumina sequencing and measurement of soil nutrients and enzymes were used in this study to analyze soil samples in a field with three consecutive ratooning sugarcane crops. The results revealed a decline in crop yield and significant changes (P < 0.05) in soil nutrients and bacterial diversity. Ratooning resulted in an acidic environment that potentially affected soil nutrients and enzyme activity responsible for the cycling of carbon, nitrogen, and phosphorous. Non-metric dimensional scaling (NMDS) confirmed the effect of ratooning on soil attributes. Moreover, a positive correlation between soil physiochemical properties and soil enzymes was observed. Alpha diversity indices indicated greater bacterial diversity in ratooning sugarcane. Bacterial diversity varied throughout the ratooning crop, and significant (P < 0.05) changes in the relative abundance of specific phyla were observed. For example, the relative abundance of Proteobacteria was decreased, and Acidobacteria was increased. Furthermore, the relative abundance of bacterial phyla was strongly correlated with soil attributes (enzymes and nutrients). Additionally, ratooning results in the depletion or enrichment of important agriculture microbial genera such as Sphingomonas, Burkholderia, and Acidothermus (P < 0.05), respectively. In conclusion, ratooning led to soil acidification, decreased fertility, and altered microbial structure and activity. Thus, restraining soil acidity by means of liming or biofertilizers to maintain soil nutrients, enzymatic activities, and microbial structure could benefit plants and soil to help create a long-term eco-friendly sugarcane cropping system.

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Section: Discussionmentioning

confidence: 99%

Dynamics of rhizosphere bacterial communities and soil physiochemical properties in response to consecutive ratooning of sugarcane

et al. 2023

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Effect of reclaimed water and dehydrated sludge on the morpho-physiology and yield of sorghum

Filho

Barros

Neto

et al. 2023

Environmental Technology

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Recovery of Residual Sludge From a Wastewater Treatment Plant. Impact of Sluge-Soil Mixture on the Growth of Tomato Solanum Lycopersicum L.

OUADAH

Maatoug

Soudani

et al. 2022

INMATEH

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Sewage sludge is used as a fertilizer in agriculture to rehabilitate deteriorated soils and replace artificial fertilizers. Sludge can be utilized to improve soil characteristics, promote microbial life, and increase plant production where it includes the primary nutrients and organic matter. The current study investigated the impact of the treatment of sewage sludge on the physico-chemical characteristics of the soil, and also on the growth of tomato (Solanum lycopersicum). The experiment consists of using a sludge-soil mixture, with different fractions of sewage sludge: soil control (0% sludge) and 20%, 40%, 60%, 100% of sludge. Biometric measurements (height, stem diameter and number of leaves) were performed on the tomato. The results showed good fertilizing properties of a sludge/soil mixture with the 60% sludge fraction. However, the tomato that grew on the 40% fraction had better growth and high foliage compared to the plants on the other fractions. The spreading of sludge provides a soil amendment and an additional supply of nutrients for tomatoes. The use of 40% fraction of sludge spreading for the cultivation of this plant can maintain better soil fertility while reducing the risk of heavy metal accumulation. Indeed, the 40% fraction of sludge has concentrations which are: 86±0.40 mg/kg for copper, 294 ±0.40 mg/kg for zinc and 50±5.9 mg/kg for lead, lower than the limits recommended by the European directives.

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Residual effects of alkalized sewage sludge application on soil quality and sugarcane yield

Cited by 3 publications

References 33 publications

Dynamics of rhizosphere bacterial communities and soil physiochemical properties in response to consecutive ratooning of sugarcane

Dynamics of rhizosphere bacterial communities and soil physiochemical properties in response to consecutive ratooning of sugarcane

Effect of reclaimed water and dehydrated sludge on the morpho-physiology and yield of sorghum

Recovery of Residual Sludge From a Wastewater Treatment Plant. Impact of Sluge-Soil Mixture on the Growth of Tomato Solanum Lycopersicum L.

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