Efficiency of various sewage sludges and their biochars in improving selected soil properties and growth of wheat (Triticum aestivum)

Rehman, Rabia; Rizwan, Muhammad; Qayyum, Muhammad Farooq; Ali, Shafaqat; Rehman, Muhammad Zia ur; Zafar-ul-Hye, Muhammad; Hafeez, Farhan; Iqbal, Muhammad

doi:10.1016/j.jenvman.2018.06.081

Cited by 65 publications

(28 citation statements)

References 35 publications

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“…Higher K content values were recorded for TB2 + CF showing increases by 54.1% in grains, of 42.9% in shoots and of 49.7% in roots over the CK group (Figure 3G–I). Our results are consistent with previous studies which reported that plant N, P and K contents improved with the co-application of biochar and chemical fertilizer application under pot and field conditions [5,31,44,45,46]. In present study, TB + CF amendments clearly affected N, P and K contents in grains, shoots and roots of wheat as compared to BB + CF, OB + CF and CF alone.…”

Section: Resultssupporting

confidence: 93%

“…The soil pH was decreased in all treatments except BB2 + CF and OB2 + CF as compared to CK. A similar trend was observed in previous studies [5,13,25], and soil pH increased with increasing biochar levels [17], but decreased in the chemical fertilizer treatment alone as compared to un-amended soils [25]. Overall, biochar increased soil pH [26,33].…”

Section: Resultssupporting

confidence: 87%

“…These differences could be explained by the high nutrient contents in TB as compared to BB + CF and OB + CF (Table 2). The C:N ratio of biochars also affects plant growth and grain yield parameters [5,41] a high C:N ratio results in low microbial degradation and a lower nutrients mineralization rate [42,43]. The C:N ratio of TB (14.67) was very low as compared to BB and OB (31.67 and 33.58) (Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…Agricultural soil fertility is in a constant decline due to a lack of application of organic amendments and the continuous application of chemical fertilizers [2]. In particular, the utilization of nitrogen fertilizers [3], has decreased the level of soil organic carbon (SOC) [4] and low fertilizer use efficiency [5,6] contributes to the decline of soil fertility. In China, farmers apply high doses of chemical fertilizer to obtain high grain yields [7,8], leading to serious environmental issues and economic issues due to high expense of fertilizer inputs [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Different Biochars on Wheat Growth Parameters, Yield and Soil Fertility Status in a Silty Clay Loam Soil

et al. 2019

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The conversion of organic wastes into biochar via the pyrolysis technique could be used to produce soil amendments useful as a source of plant nutrients. In this study, we investigated the effects of fruit peels and milk tea waste-derived biochars on wheat growth, yield, root traits, soil enzyme activities and nutrient status. Eight amendment treatments were tested: no amendment (CK), chemical fertilizer (CF), banana peel biochar 1% (BB1 + CF), banana peel biochar 2% (BB2 + CF), orange peel biochar 1% (OB1 + CF), orange peel biochar 2% (OB2 + CF), milk tea waste biochar 1% (TB1 + CF) and milk tea waste biochar 2% (TB2 + CF). The results indicated that chlorophyll values, plant height, grain yield, dry weight of shoot and root were significantly (p < 0.05) increased for the TB2 + CF treatment as compared to other treatments. Similarly, higher contents of nutrients in grains, shoots and roots were observed for TB2 + CF: N (61.3, 23.3 and 7.6 g kg−1), P (9.2, 10.4 and 8.3 g kg−1) and K (9.1, 34.8 and 4.4 g kg−1). Compared to CK, the total root length (41.1%), surface area (56.5%), root volume (54.2%) and diameter (78.4%) were the greatest for TB2 + CF, followed by BB2 + CF, OB2 + CF, TB1 + CF, BB1 + CF, OB1 + CF and CF, respectively. However, BB + CF and OB + CF treatments increased β-glucosidase and dehydrogenase, but not urease activity, as compared to the TB + CF amendment, while all enzyme activity decreased with the increased biochar levels. We concluded that the conversion of fruit peels and milk tea waste into biochar products contribute the benefits of environmental and economic issues, and should be tested as soil amendments combined with chemical fertilizers for the improvement of wheat growth and grain yield as well as soil fertility status under field conditions.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Different Biochars on Wheat Growth Parameters, Yield and Soil Fertility Status in a Silty Clay Loam Soil

et al. 2019

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“…Accordingly, it is important to highlight that the properties and the composition of the investigated sludge depend highly on its origin. Furthermore, the treatment methods contribute to differences in sludge characteristics (Rehman et al 2018). Consequently, the physicochemical and metal characteristics of the analyzed sludge of the three WWTPs confirm that it can be considered as a significant fertilizer replacement for major plant nutrients to be applied only on crops that are not eaten raw (Dai et al 2006).…”

Section: Physicochemical and Metal Characteristicsmentioning

confidence: 91%

Assessing the quality of sewage sludge as an agricultural soil amendment in Mediterranean habitats

Romanos

Nemer

Khairallah

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose Municipal sewage sludge generated from three operational wastewater treatment plants, located in the Bekaa valley of Lebanon, was assessed for its potential use as agricultural soil amendment. Methods Sludge samples were taken from three treatment plants located in the villages of Iaat, Ablah and Joub Jannine during the summer season of 2018, from June to September, on a monthly basis. The evaluation was based on characterizing the physicochemical parameters such as the metal content, the pathogenic microorganisms (Salmonella, E.Coli, Staphylococcus aureus, Helminth eggs, Ascaris, Acinetobacter) and the phytotoxicity-stability indicators of the sludge samples. Results The obtained results were compared to the Lebanese guidelines for sludge reuse in agriculture. For the physicochemical analysis, all the samples showed a possibility to be used in agriculture due to the high content of minerals and organic matter. Considering the metal content of sludge, Iaat and Ablah sludge were classified as Class A according to the Lebanese guidelines; however, sludge from Joub Janine was classified as B due to its high content of zinc that exceeded the limit of 700 ppm. Helminth eggs and Salmonella were absent in the sludge samples. Pathogenic organisms, mainly E. coli, were detected in Iaat dry sludge, Staphylococcus aureus was present in Joub Jannine sludge and Acinetobacter in Ablah station (> 100 CFU/100 g). Conclusion It is recommended to submit the sludge which did not meet the required criteria, for further treatments, particularly the composting process to reduce the metal content and pathogenic microorganisms for a safer reuse in agriculture.

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Sewage Sludge as Soil Conditioner and Fertilizer

Fijałkowski

Kwarciak‐Kozłowska

2021

Handbook of Assisted and Amendment: Enhanced Sustainable Remediation Technology

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Efficiency of various sewage sludges and their biochars in improving selected soil properties and growth of wheat (Triticum aestivum)

Cited by 65 publications

References 35 publications

Effects of Different Biochars on Wheat Growth Parameters, Yield and Soil Fertility Status in a Silty Clay Loam Soil

Effects of Different Biochars on Wheat Growth Parameters, Yield and Soil Fertility Status in a Silty Clay Loam Soil

Assessing the quality of sewage sludge as an agricultural soil amendment in Mediterranean habitats

Sewage Sludge as Soil Conditioner and Fertilizer

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