Effects of biochar application on greenhouse gas emissions, carbon sequestration and crop growth in coastal saline soil

Lin, Xiaochen; Xie, Zubin; Zheng, Jiyong; Liu, Q.; Bei, Qicheng; Zhu, Juntao

doi:10.1111/ejss.12225

Cited by 110 publications

(50 citation statements)

References 32 publications

(74 reference statements)

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“…Lin et al (2015) observed yield increases of 11% in soybean grain yield and of 28% in wheat grain yield following maize stalk BC application to a coastal saline soil. In an Italian vineyard soil, Baronti et al (2014) demonstrated an increase in leaf water potential of 24-37%, which reduced water stress in the grape crop and lead to an improved water use efficiency.…”

Section: Interaction With Crop Typementioning

confidence: 86%

“…Many recent studies have reported increased crop yield (Subedi et al, 2016a;Vaccari et al, 2011;Usman et al, 2016;Kammann et al, 2012;Baronti et al, 2010;Uzoma et al, 2011;Houben et al, 2013;Genesio et al, 2015;Cornelissen et al, 2013;De La Rosa et al, 2014;Fox et al, 2014;Gregory et al, 2014;Lin et al, 2015;Schmidt et al, 2015;Butnan et al, 2015;Laghari et al, 2015;Mandal et al, 2016). Others have reported no yield effect (Cornelissen et al, 2013;Uzoma et al, 2011;Nelissen et al, 2015;Subedi et al, 2016aSubedi et al, , 2016bNielsen et al, 2014;Tammeorg et al, 2014;Suddick and Six, 2013;Schmidt et al, 2014;Bass et al, 2016).…”

Section: Biochar Effects On Crop Productivitymentioning

confidence: 99%

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Crop response to soils amended with biochar: expected benefits and unintended risks

et al. 2017

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Biochar (BC) from biomass waste pyrolysis has been widely studied due to its ability to increase carbon sequestration, reduce greenhouse gas emissions, and enhance both crop growth and soil quality. This review summarises the current knowledge of BC production, characterisation, and types, with a focus on its positive effects on crop yield and soil properties vs the unintended risks associated with these effects. Biochar-amended soils enhance crop growth and yield via several mechanisms: expanded plant nutrient and water availability through increased use efficiencies, improved soil quality, and suppression of soil and plant diseases. Yield response to BC has been shown to be more evident in acidic and sandy soils than in alkaline and fine-textured soils. Biochar composition and properties vary considerably with feedstock and pyrolysis conditions so much that its concentrations of toxic compounds and heavy metals can negatively impact crop and soil health. Consequently, more small-scale and greenhouse-sited studies are in process to investigate the role of BC/soil/crop types on crop growth, and the mechanisms by which they influence crop yield. Similarly, a need exists for long-term, field-scale studies on the effects (beneficial and harmful) of BC amendment on soil health and crop yields, so that production guidelines and quality standards may be developed for BCs derived from a range of feedstocks.

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Section: Interaction With Crop Typementioning

confidence: 86%

Section: Biochar Effects On Crop Productivitymentioning

confidence: 99%

Crop response to soils amended with biochar: expected benefits and unintended risks

et al. 2017

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“…This biochar-induced increase of wheat production could mainly be attributed to the better grain formation, i.e., higher grain number per spike and larger 1000-grain weight. Lashari et al [27] and Lin et al [28] also reported that straw biochar effectively enhanced wheat spike weight, grain per spike, and grain weight under saline conditions, probably due to the increased nutrient uptake and improved soil properties. In the present study, biochar application increased leaf area and photosynthesis during the reproductive stage, which could help to capture more light energy, consequently supplying more CO 2 assimilates to promote grain formation [50].…”

Section: Improved Wheat Productionmentioning

confidence: 98%

“…Furthermore, biochar amendment remarkably mitigated soil sodicity build-up under saline water irrigation (lower SAR values). The diminished Na + content in soil solution could directly reduce plant Na + uptake and enhance other essential minerals uptake, resulting in the amelioration of salinity injuries [24,25,27,28]. In addition, the transient Na + adsorption capacity of biochar may be another underlying mechanism responsible for the enhanced growth of wheat plants.…”

Section: Alleviated Salt Stressmentioning

confidence: 99%

“…As a result, biochar has been increasingly used as a soil amendment to facilitate agricultural development under saline conditions. Studies have reported that biochar amendment effectively enhanced wheat growth and yield in salt-affected soils [23,[27][28][29], and also increased yields of several crops under saline water irrigation such as potato, maize, tomato, soybean, and sweet melon [26,[30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Straw Biochar on Soil Properties and Wheat Production under Saline Water Irrigation

et al. 2019

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Use of saline water for irrigation is essential to mitigate increasing agricultural water demands in arid and semi-arid regions. The objective of this study is to address the potential of using straw biochar as a soil amendment to promote wheat production under saline water irrigation. A field experiment was conducted in a clay loam soil from eastern China during 2016/2017 and 2017/2018 winter wheat season. There were five treatments: freshwater irrigation (0.3 dS m−1), saline water irrigation (10 dS m−1), saline water irrigation (10 dS m−1) combined with biochar of 10, 20, 30 t ha−1. Saline water irrigation alone caused soil salinization and decreased wheat growth and yield. The incorporation of biochar decreased soil bulk density by 5.5%–11.6% and increased permeability by 35.4%–49.5%, and improved soil nutrient status. Biochar also reduced soil sodium adsorption ratio by 25.7%–32.6% under saline water irrigation. Furthermore, biochar alleviated salt stress by maintaining higher leaf relative water content and lower Na+/K+ ratio, and further enhanced photosynthesis and relieved leaf senescence during reproductive stages, leading to better grain formation. Compared to saline water irrigation alone, biochar application of 10 and 20 t ha−1 significantly increased wheat grain yield by 8.6 and 8.4%, respectively. High dose of biochar might increase soil salinity and limit N availability. In the study, biochar amendment at 10 t ha−1 would be a proper practice at least over two years to facilitate saline water irrigation for wheat production. Long-term studies are recommended to advance the understanding of the sustainable use of straw biochar.

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Assessment of organic amendments for improving coastal saline soil

Xin-min

Yang

et al. 2018

Land Degrad Dev

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Salt-affected soils are an important resources; although the crop yields in the soils are lower, they should not be ignored nor given up. By using pot experiments, five different organic amendments (pig manure, cattle dung, chicken manure, rapeseed meal, and biochar) were used to investigate their effects on the chemical properties and enzyme activities of coastal saline soil as well as the growth of wheat. We also compared the suitable application doses of these organic amendments. After the treatment of five organic amendments, soils were incubated for 30 days at a constant temperature and moisture. The results showed that organic amendments had the property to decrease soil pH, increase organic matter, change soil enzyme activities, and promote wheat growth. With the rapeseed meal addition at the dose of 50 g kg −1 , soil pH decreased from 8.29 to 7.06, which was 14.8% lower than that in the control soil (no amendments), the organic matter as well as the activities of catalase, urease, alkaline phosphatase, and saccharase significantly increased, and the biomass of wheat increased by 48.4%. Compared with control, the rapeseed meal and pig manure were recommended as the suitable soil amendments for remediating coastal saline soil, and the suitable application dose is 50 g kg −1 . These data suggested that rapeseed meal and pig manure are an efficient choice in improving salt-induced land degradation. This study will not only lay the theoretical foundation for remediating coastal saline soil but also provide advice on selecting organic matters in ameliorating coastal saline soil.

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Effects of biochar application on greenhouse gas emissions, carbon sequestration and crop growth in coastal saline soil

Cited by 110 publications

References 32 publications

Crop response to soils amended with biochar: expected benefits and unintended risks

Crop response to soils amended with biochar: expected benefits and unintended risks

Effect of Straw Biochar on Soil Properties and Wheat Production under Saline Water Irrigation

Assessment of organic amendments for improving coastal saline soil

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