Nitrogen dynamics affected by biochar and irrigation level in an onion field

Gao, Suduan; Wang, Dong; Dangi, Sadikshya R.; Duan, Yinghua; Pflaum, T.; Gartung, Jim; Qin, Ruijun; Turini, T. A.

doi:10.1016/j.scitotenv.2019.136432

Cited by 21 publications

(18 citation statements)

References 50 publications

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“…The study recommended that certain biochar types may be less suitable for N 2 O mitigation in some agricultural soils, at least on shorter temporal scales, or that a minimum biochar quantity is needed for effective reduction (Suddick and Six, 2013). Findings are corroborated with another study wherein it was observed that N 2 O emissions do not always get reduced, and sometimes biochar application shows neutral or negative effects (Gao et al, 2020).…”

Section: Carbon Sequestration and Ghg Emission Reduction With Biochar Applicationmentioning

confidence: 63%

Review of Large-Scale Biochar Field-Trials for Soil Amendment and the Observed Influences on Crop Yield Variations

et al. 2021

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Increasing pressure on farming systems due to rapid urbanization and population growth has severely affected soil health and fertility. The need to meet the growing food demands has also led to unsustainable farming practices with the intensive application of chemical fertilizers and pesticides, resulting in significant greenhouse gas emissions. Biochar, a multifunctional carbon material, is being actively explored globally for simultaneously addressing the concerns related to improving soil fertility and mitigating climate change. Reviews on biochar, however, mainly confined to lab-scale studies analyze biochar production and its characteristics, its effects on soil fertility, and carbon sequestration. The present review addresses this gap by focusing on biochar field trials to enhance the current understanding of its actual impact on the field, w.r.t. agriculture and climate change. The review presents an overview of the effects of biochar application as observed in field studies on soil health (soil’s physical, chemical, and biological properties), crop productivity, and its potential role in carbon sequestration. General trends from this review indicate that biochar application provides higher benefits in soil properties and crop yield in degraded tropical soils vis-a-vis the temperate regions. The results also reveal diverse observations in soil health properties and crop yields with biochar amendment as different studies consider different crops, biochar feedstocks, and local climatic and soil conditions. Furthermore, it has been observed that the effects of biochar application in lab-scale studies with controlled environments are not always distinctly witnessed in corresponding field-based studies and the effects are not always synchronous across different regions. Hence, there is a need for more data, especially from well-designed long-term field trials, to converge and validate the results on the effectiveness of biochar on diverse soil types and agro-climatic zones to improve crop productivity and mitigate climate change.

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Section: Carbon Sequestration and Ghg Emission Reduction With Biochar Applicationmentioning

confidence: 63%

Review of Large-Scale Biochar Field-Trials for Soil Amendment and the Observed Influences on Crop Yield Variations

et al. 2021

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“…In field conditions, Almaroai and Eissa (2020) reported positive effects of biochar at rates of 5 and 10 Mg ha −1 in a metal-contaminated soil on yield and quality of tomato, as well as reduced concentration of metals in tomato root, shoot and fruit over control (no biochar). On the other hand, the application of biochar (29 and 58 Mg ha −1 ) combined with three water irrigation regimes did not affect the onion yield significantly during two growing seasons over control (Gao et al 2020).…”

Section: Introductionmentioning

confidence: 81%

“…The effect of biochar application on crop yield depending on soil type, crop type and rates of biochar used (Spokas et al 2011). Few studies on the use of biochar in vegetable production are found in the literature (Sousa and Figueiredo 2016;Agbna et al 2017;ÖZ 2018;Adekiya et al 2019;Ronga et al 2020;Gao et al 2020;Almaroai and Eissa 2020). Agbna et al (2017), reported that the use of 25 Mg ha −1 of biochar reduced the water use without affecting the yield and quality of tomato fruits.…”

Section: Introductionmentioning

confidence: 99%

Effects of the application of biochar on soil fertility status, and nutrition and yield of onion grown in a no-tillage system

Higashikawa

Silva

Carducci

et al. 2021

Archives of Agronomy and Soil Science

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The study was aimed to evaluate the effect of successive applications of increasing biochar rates along with other mineral fertilizers and poultry manure on onion nutrition and yield. The experiment consisted of 2 (agricultural year) × 11 (treatments) factorial combinations over two cropping years (2017 and 2018). Thus, 11 treatments were tested as follows: C = control; MF = mineral fertilizer; PM = poultry manure; B1+ MF = 1 Mg ha −1 of biochar+MF; B1+ PM = 1 Mg ha −1 of biochar+PM; B2+ MF = 2 Mg ha −1 of biochar+MF; B2+ PM = 2 Mg ha −1 of biochar+PM; B4+ MF = 4 Mg ha −1 of biochar+MF; B4+ PM = 4 Mg ha −1 of biochar+PM; B10 + MF = 10 Mg ha −1 of biochar+MF; B10+ PM = 10 Mg ha −1 of biochar +PM. The highest onion yield (39.9 Mg ha −1 ) was obtained in 2017 with the biochar rate of 5.9 Mg ha −1 while an increase of 308 kg ha −1 in onion yield was found for each Mg ha −1 of biochar added to soil in 2018. The use of biochar combined with mineral fertilizers increased onion yield; and the use of biochar combined with poultry manure improved soil fertility status.

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“…It is worth mentioning that compared to Langmuir model, the Freundlich one fits the experimental data better with lower APE and AIC values (Table 3). This finding indicates that Pb(II) adsorption by the lignite happens heterogeneously on multilayer surfaces [47]. On the other hand, the Freundlich constant "n" exists in the range of 1-10 (5.1), indicating that Pb(II) adsorption by lignite is a favorable process.…”

Section: Isotherm Adsorptionmentioning

confidence: 92%

Investigations on lignite use for lead removal from aqueous solutions under static and dynamic conditions: adsorption properties and mechanism exploration

Mlayah¹,

Jellali²,

Azzaz³

et al. 2021

Comptes Rendus. Chimie

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Nitrogen dynamics affected by biochar and irrigation level in an onion field

Cited by 21 publications

References 50 publications

Review of Large-Scale Biochar Field-Trials for Soil Amendment and the Observed Influences on Crop Yield Variations

Review of Large-Scale Biochar Field-Trials for Soil Amendment and the Observed Influences on Crop Yield Variations

Effects of the application of biochar on soil fertility status, and nutrition and yield of onion grown in a no-tillage system

Investigations on lignite use for lead removal from aqueous solutions under static and dynamic conditions: adsorption properties and mechanism exploration

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