Sugarcane bagasses sewage sludge compost as a plant growth substrate and an option for waste management

Jayasinghe, G.Y.

doi:10.1007/s10098-011-0423-8

Cited by 22 publications

(24 citation statements)

References 37 publications

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“…Jayasinghe (2012) reported that an excess of larger particles may lead to excessive aeration and inadequate water retention and that an excess of fine particles may clog pores and decrease air-filled porosity. Growth media with a high percentage of particles between 0.25 and 2.00 mm are optimal for potted plants (Jayasinghe, 2010). Jayansinghe (2012b) established that CI for ideal medium should be between 30 and 45 wt%.…”

Section: Hydrophysical Propertiesmentioning

confidence: 99%

The effect of paper sludge and biochar addition on brown peat and coir based growing media properties

Méndez

Paz‐Ferreiro

Gil

et al. 2015

Scientia Horticulturae

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Section: Hydrophysical Propertiesmentioning

confidence: 99%

The effect of paper sludge and biochar addition on brown peat and coir based growing media properties

Méndez

Paz‐Ferreiro

Gil

et al. 2015

Scientia Horticulturae

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“…Due to economic and environmental issue, recently farmers try to find an alternative to peat, vermiculite, perlite, and sand and among those products peat was largely applied in the production of ornamental potted plants [2,3]. Most of the media blends that are available in the markets have inaccurate properties such as acidity (pH), the content of soluble salt, less nutrient amount and low cation exchange capacity (CEC) and these properties reduce the performance of the plant [4,5].…”

Section: Introductionmentioning

confidence: 99%

Biochar and Nitrogen Fertilizers Effects on Growth and Flowering of Garland Chrysanthemum (Chrysanthemum Coronarium L.) Plant

Ali¹,

Mjeed²

2017

KJAR

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The results showed that biochar applications at a rate of 3%, significantly increase PH, FWP, NLP, SD, FD, and NFBP, while NFP increased only at 2% biochar application and decrease at the 3% rate. The application of 280 mg kg -1 of nitrogen significantly increased all of the parameters. The plant grown in the soils amended with the EB were higher than grown in the soils of the SB. In addition, the best value in the study was observed were biochar combined with nitrogen fertilizers.

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“…Specifically, amendment with sewage sludge leads to improved porosity (Cai et al, 2010), enhanced water binding capacity (Navas et al, 1998;Chen et al, 2002), and increased biomass or nutrient uptake (Jayasinghe, 2012;Gasco and Lobo, 2007;Grigatti et al, 2007;Perez-Murcia et al, 2006). However, most residual salts are transferred and deposited into the sludge during treatment.…”

Section: Introductionmentioning

confidence: 99%

Improvement of salinity in sewage sludge compost prior to its utilization as nursery substrate

Liu

Gao

Chen

et al. 2013

Journal of the Air & Waste Management Association

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Soluble salts are enriched in sewage sludge compost because of their inherent derivation. Accordingly, the content of soluble salt in sludge compost is usually much higher than most seedlings can tolerate. To determine whether sludge compost is suitable for use as a nursery substrate, some experiments were conducted. Reduction of the electrical conductivity (EC) value could improve seed germination in saturated extract from sludge compost. In addition, water elution and mixing dilution with raw soil were all shown to be able to alleviate saline inhibition on seed germination and seedling growth, including stem diameter, seedling height, and aboveground weight. Overall, salinity is a crucial problem when sewage sludge compost is reused as a nursery substrate, and some effective and convenient approaches to reduce salt should be served prior to its reuse.Implications: Sewage sludge after being composted is usually reused as organic fertilizer or plant substrate. However, salt is the main problem during its reclamation. What is the highest salt level the seedling can tolerate? Which types of salts are effective in salinity of sludge-amended substrate? Meanwhile, can the salinity be reduced through water elution or soil mixing dilution? This paper is the first to investigate the salinity and its reduction of sewage sludge compost prior to its use in the development of nursery substrate. IntroductionSewage sludge, which is the solid by-product of treatment of household derived sewage, has positive effects on the physical, chemical, and biological properties of soil or substrates that it is added to (Lakhdar et al., 2010). Specifically, amendment with sewage sludge leads to improved porosity (Cai et al., 2010), enhanced water binding capacity (Navas et al., 1998;Chen et al., 2002), and increased biomass or nutrient uptake (Jayasinghe, 2012;Gasco and Lobo, 2007;Grigatti et al., 2007;Perez-Murcia et al., 2006). However, most residual salts are transferred and deposited into the sludge during treatment. Uptake content of heavy metal increases along with the increase in sludge compost amend dose, but not to a threshold value of physiological disorder or injury, even only slight biotoxicity (Hicklenton et al., 2001) compared to salt (Singh and Agrawal, 2008), whose toxicity has more stronger negative effect on seedling growth. Salt content in nursery substrate amended by sludge compost usually is beyond the physiological tolerance threshold, so the main obstacle to application of sludge compost to agricultural substrate is salt excess.Accordingly, salinity is one of the main problems hindering the reclamation of sewage sludge via application as soil amendments or substrates (Chong, 2005;Chong and Purvis, 2004;Cai et al., 2010). As a result, the utilization of sludge may increase soil salinity (Chong and Purvis, 2004), which can be especially problematic when it is used as a nursery substrate due to the increased sensitivity of seedlings to salt. Despite this, no detailed studies to determine the most common types of salt i...

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Sugarcane bagasses sewage sludge compost as a plant growth substrate and an option for waste management

Cited by 22 publications

References 37 publications

The effect of paper sludge and biochar addition on brown peat and coir based growing media properties

The effect of paper sludge and biochar addition on brown peat and coir based growing media properties

Biochar and Nitrogen Fertilizers Effects on Growth and Flowering of Garland Chrysanthemum (Chrysanthemum Coronarium L.) Plant

Improvement of salinity in sewage sludge compost prior to its utilization as nursery substrate

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