The impact of different biochars on Stemphylium leaf blight (SLB) suppression and productivity of onion (Allium cepa L.)

Arif, Muhammad; Fawaz, Muhammad Sarmad; Zuan, Ali Tan Kee; Shah, Rahmat Ullah; Ullah, Rehmat; El-Shehawi, Ahmed M.; Al-Sadi, Abdullah M.; Ullah, Muhammad Ihsan; Güldür, Muhammed Emin; Alotaibi, Saqer S.; Khan, Muhammad Ifnan; Hussain, Ammar

doi:10.1016/j.jksus.2021.101575

Cited by 6 publications

(6 citation statements)

References 35 publications

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“…Previous studies support this trend, with rice husk reaching pH 7.4 at 250-300 °C and 8.4 at 450-500 °C [41], and rice straw reaching 10.2 at 550 °C [47]. Similarly, other studies report alkaline biochar (pH > 7) from wheat straw, pine wood, olive stone, and almond shell up to 507 °C [38,48]. Even at lower temperatures, corn cob biochar produced at 350 °C had a slightly alkaline pH (7.10) [21].…”

Section: Biochar Characteristicsmentioning

confidence: 52%

“…A maximum height of 58 cm was reported in the Nitisol soil of Ethiopia treated with biochar grass, exceeding the control group's 20 cm [42]. Similarly, a maximum height of 64.52 cm was observed for the Phulkara cultivar grown with poultry litter biochar in a semi-arid region in Pakistan [38]. While biochar shows promise, traditional fertilizers can also be effective.…”

Section: Functional Traitsmentioning

confidence: 92%

“…The expected improvement in allometric and yield-related traits of onion cultivars with wheat straw, cotton sticks, rice husk, maize stalk, and poultry litter biochars can be attributed to differences in the chemical properties of the biochars [4,38]. Biochar application often boosts onion growth and yield through improved soil properties and nutrient access.…”

Section: Functional Traitsmentioning

confidence: 99%

“…Beyond biochar, various other organic amendments have been shown to positively impact onion root length. Studies demonstrated that wheat straw, coconut shell, phragmites, sawdust, cotton sticks, and poultry litter biochars all significantly increased root length in tested onion cultivars, with some reaching up to 25.21 cm [38,52,53]. According to the literature, it is suggested that biochar, fertilizers containing sulfur, and various organic amendments can significantly promote onion growth by increasing plant height and root length.…”

Section: Functional Traitsmentioning

confidence: 99%

“…Building on prior research demonstrating biochar's potential to enhance plant growth and reduce disease [38], this study addresses a key knowledge gap: the optimal application rate. Since biochar properties vary significantly, a one-size-fits-all approach is not feasible [39].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Biochar Type on the Growth and Harvest Index of Onion (Allium cepa L.)

Cedeño,

Saldarriaga,

Cedeño

et al. 2024

AgriEngineering

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This study examined using peanut shells, rice husks, and cocoa husks as soil conditioners to boost yields in Allium cepa var. Alvara onions. Three types of biochar and four application rates (1%, 1.5%, 3%, and 5%) were compared to a control with no biochar. The biochars had different nutrient makeups, with cocoa husk biochar (CHB) containing the most essential elements. While overall plant growth (height, leaves, and roots) was not significantly affected (p > 0.05) by any biochar type compared to the control, some plant parts responded differently. CHB (5%) and peanut husk biochar (PHB) (1%) yielded the tallest onion plants (71 and 65 cm), while 1% rice and cocoa biochar resulted in the shortest (below 42 cm). PHB (3% and 5%) produced the longest roots (9 cm), while 1.5% rice husk biochar (RHB) had the shortest. Biochar application had no significant effect on leaf count. However, specific application rates of RHB and PHB increased the harvest index (HI), indicating more efficient yield allocation. HI values > 0.85 were obtained with specific biochar rates (e.g., 1.0–1.5% PHB, 1.5–5% RHB, or 5.0% CHB).

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