Sewage Sludge Compared with Other Substrates in the Inoculation, Growth, and Tolerance to Water Stress of Samanea saman

Abaurre, Gustavo Wyse; Alonso, Jorge Makhlouta; Júnior, Orivaldo José Saggin; Faria, Sérgio Miana de

doi:10.3390/w13091306

Cited by 4 publications

(4 citation statements)

References 46 publications

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“…Another approach (Abaurre et al, 2021) notes that the addition of sewage sludge increases nutrient content, retains moisture, and thus allows for better plant development.…”

Section: Resultsmentioning

confidence: 99%

Substrates based on composted sewage sludge for land recultivation

Storoshchuk

Malovanyy

Tymchuk

2022

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Increasing a large amounts of sewage sludge in Ukraine is an urgent environmental problem that requires the selection of an effective strategy for their disposal. The usage of sludge composting technology leads to the restoration of sludge as a resource and is cost-effective and environmentally sustainable compared to the method of landfilling. The purpose of this research is to carry out bioindication tests of growth substrates based on composted sewage sludge with the subsequent possibility of their usage in the technology of recultivation of landfills for municipal solid waste. The experiment was performed on four types of compost with different modifications of the natural sorbent - zeolite. During the experiment the average percentage of germination of polygamous ryegrass plants (Lolium perenne L.) was determined in the investigated substrates. The mass and length of the aboveground part of the plant and roots were also measured. The results showed that the addition of natural sorbent to substrates has a positive effect on growth and development of plants. This investigation was conducted in accordance with the current norms of national standards of Ukraine: DSTU 7369 (2013), "Wastewater. Requirements for wastewater and its sediments for irrigation and fertilization"; DSTU ISO 11269-1 (2004), "Soil quality. Determination of the effect of pollutants on soil flora. Part 1: Method for determining the inhibitory effect on a root growth"; DSTU ISO 11269-2 (2002), "Soil quality. Determination of the effect of pollutants on soil flora. Part 2: Effects of Chemicals on Germination and Growth of Higher Plants". The experiment was conducted on four types of compost with different modifications of the natural sorbent - zeolite in percentage amounts: 0; 2.5; 5; 7.5, dark-grey gilded soil was used as a control element. In the experiment, the average percentage of germination of polygamous ryegrass plants (Lolium perenne L.) on the studied substrates was determined. The mass and length of the aboveground part of the plant and roots were also measured. The first sprouts of ryegrass began to appear on the 7th day of the experiment. The highest average value on the seventh day of germination was 90% in the control sample with 5% of sorbent content and in K2 substrate in the sample with 7.5% sorbent content. However, the germination of plants in substrates K3 and K4 occurred later compared with substrates K1, K2, and control. For substrate K1 in the sample with a sorbent content of 5%, plant germination was the highest and was 100%. The highest average value of ryegrass stem length is observed in variant K4 in the sample with 0% zeolite content and in variant K1 in the sample without zeolite content the lowest average value of stem length was observed. The K3 and K4 variants have a more developed root system compared to other variants. Based on the obtained data it can be assumed that the most optimal universal component for creating a growth substrate is variant K3 (mixture of "newly picked" and "old" SS) which has not so developed aboveground part but has very branched root system that allows to adapt to various environmental factors and in combination with a small proportion of natural sorbents can be effective for the recultivation of MSW landfills, which in its turn minimizes the need to use a fertile soil layer.

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“…Another approach (Abaurre et al, 2021) notes that the addition of sewage sludge increases nutrient content, retains moisture, and thus allows for better plant development.…”

Section: Resultsmentioning

confidence: 99%

Substrates based on composted sewage sludge for land recultivation

Storoshchuk

Malovanyy

Tymchuk

2022

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“…Also, using SS as an agricultural input has less environmental impact than its disposal in a sanitary landfill; it can be considered more sustainable from an environmental, economic, and social point of view 10 , 48 . From a circular economy perspective, the transformation of waste into an input promotes the recycling of nutrients applied in food production and returns to the soil the carbon and nutrients exported from the countryside to the cities 11 , 21 . Future studies should generate knowledge to support the industrial production of substrates with SS 21 and other products like organomineral fertilizers.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, SS is widely available in urban centers worldwide; it can be used as a substrate to grow container seedlings for different purposes (street trees, forest restoration, silviculture, and others) in different regions or countries. Using SS as a substrate can be considered more sustainable than disposal in landfills, which is the most common practice in Brazil 11 , 12 .…”

Section: Introductionmentioning

confidence: 99%

Sewage sludge as substrate in Schinus terebinthifolia raddi seedlings commercial production

Alonso

Pereira

Abel³

et al. 2022

Sci Rep

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Schinus terebinthifolia Raddi is a species with several potential uses; selecting the proper substrate and fertilizer rate can be vital for seedling production in a nursery environment. This study aims to evaluate two substrates, namely: (i) sewage sludge (SS) from Ilha WWTP; (ii) a commercial substrate (CS) made of organic materials (mainly sphagnum peat). Increasing rates of controlled-release fertilizer – CRF (0, 3, 6, and 12 kg m−3) were applied. The experiment was completely randomized with a factorial 2 × 4 scheme (substrates × rates). The seedlings’ growth, biomass, and quality were evaluated. The treatments were compared by Tukey test and regression analysis, where linear, quadratic, and cubic models were considered. Principal components analysis (PCA) and cluster analysis were performed. The CRF rates showed non-significant effects for most of the investigated variables in the SS substrate. In the CS, a 7.8 kg m−3 rate of CRF showed the best growth performance. The multivariate analysis of the morphological parameters proved suitable as a complementary approach to evaluate the seedlings’ quality. Seedlings reached recommended values for height, diameter, and quality in the 100% SS substrate without chemical fertilizers; thus, Schinus terebinthifolia production in the SS from Ilha is recommended. Besides the growth advantage, the SS can promote nursery cost savings with commercial substrates and chemical fertilizers.

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“…Commonly, low values of (A), gs and (E) are observed in experiments with plants subjected to water stress, showing the sensitivity of plants to lack of water in the soil, with implications for plant growth (GHOLZ, EWEL, TESKEY, 1990). Sewage sludge has a high-water retention capacity, due to its microporosity and high contents of organic matter which improves water availability to plants (ABAURRE et al, 2021). However, the lack of nutrients also leads to lower gas exchange rates, as observed in plants not fertilized (0 g L -1 ).…”

Section: Physiological Factorsmentioning

confidence: 99%

LODO DE ESGOTO COMO FERTILIZANTE NA PRODUÇÃO DE MUDAS DE Cariniana estrellensis PARA RESTAURAÇÃO FLORESTAL

Zabotto,

Santos,

Broetto

et al. 2022

EnergAgric

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Um dos principais fatores para a produção de mudas de qualidade é a adubação. Dentro deste contexto, alguns materiais orgânicos têm sido utilizados em misturas de substratos ou como fertilizantes para a produção de mudas. O lodo de esgoto é um subproduto da operação da estação de tratamento de esgoto municipal e tem potencial para uso na agricultura devido às altas concentrações de matéria orgânica e nutrientes. O objetivo deste trabalho foi avaliar o crescimento e desenvolvimento de mudas de Cariniana estrellensis, adubadas com diferentes doses de lodo de esgoto suplementado com potássio. Os tratamentos consistiram de 0 (controle), 30, 60 e 90 g de lodo L-1 suplementado ou não com 150 mg K L-1. Após 120 dias de experimentação, foram avaliados os parâmetros biométricos, fisiológicos e nutricionais. Os resultados mostraram que a adição de lodo de esgoto ao substrato proporcionou teores foliares adequados de macro e micronutrientes, refletindo maiores parâmetros de altura, diâmetro do caule, área foliar e biomassa seca das plantas em relação ao tratamento controle. As plantas que receberam as doses do resíduo apresentaram maiores médias de pigmentos fotossintéticos, influenciando positivamente nas taxas de trocas gasosas. A aplicação da dose com 30 g L-1 de lodo de esgoto pode ser indicada para a adubação de mudas da espécie, sendo alternativa viável para a destinação do resíduo.

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Sewage Sludge Compared with Other Substrates in the Inoculation, Growth, and Tolerance to Water Stress of Samanea saman

Cited by 4 publications

References 46 publications

Substrates based on composted sewage sludge for land recultivation

Substrates based on composted sewage sludge for land recultivation

Sewage sludge as substrate in Schinus terebinthifolia raddi seedlings commercial production

LODO DE ESGOTO COMO FERTILIZANTE NA PRODUÇÃO DE MUDAS DE Cariniana estrellensis PARA RESTAURAÇÃO FLORESTAL

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