Quantifying the effect of biochar amendment on soil quality and crop productivity in Chinese rice paddies

Huang, Min; Liu, Yang; Qin, Huadong; Jiang, Ligeng; Zou, Yingbin

doi:10.1016/j.fcr.2013.08.010

Cited by 95 publications

(52 citation statements)

References 34 publications

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“…And the conclusion that straw biochar can (Lehmann et al, 2011;Huang et al, 2013;Lone et al, 2015). In our study, the straw biochar application with 1% or 5% level both significantly decreased soil bulk density compared with the control.…”

Section: Discussionsupporting

confidence: 50%

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Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Zhang¹,

Zhang²,

Shen³

et al. 2016

IJAB

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A Pot experiment was conducted to study the effect of straw biochar application on growth, nutrient absorption of flue-cured tobacco and soil fertility. The tobacco height, productive leaves and leaf area were all promoted by biochar application at appropriate levels (0.2-1.0%), while they were inhibited by high-level (5%) biochar application. Growth of the root system was promoted more extensively by biochar application at all levels tested than the aboveground organs, with 5% biochar addition resulting in the highest root-shoot ratio, which also delayed the senility of tobacco root system including lateral roots. The taproot length, lateral roots and root-shoot ratio of tobacco all increased at early growth stage but decreased at latter growth stage. The biochar had different effect on N, P and K concentrations of tobacco organs. Large amount of biochar addition (5%) decreased N and P contents, but significantly increased K content in tobacco organs. Moreover, the soil bulk density decreased, while an increase was observed in soil pH and soil nutritional indicators including, organic carbon, alkali-hydrolysable N, available P and K, with the soil nutrient level highest in the 5% biochar treatment. Our results induced that 0.2-1.0% levels of straw biochar application might be appropriate in the tobacco field.

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Section: Discussionsupporting

confidence: 50%

“…This is not only a great waste of natural resources, but also a significant source of air pollution (Qu et al, 2012). Hence, the conversion of crop straw into biochar is causing more and more attention in China, and it could be a beneficial soil amendment as a novel crop straw management (Huang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Zhang¹,

Zhang²,

Shen³

et al. 2016

IJAB

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“…Biochar has been reported to improve soil quality and crop productivity in different agricultural soils (Huang et al, 2013). There are various mechanisms involved in the enhancement of crop productivity in biochar amended soils.…”

Section: Introductionmentioning

confidence: 99%

Impact of wheat straw biochar on yield of rice and some properties of Psammaquent and Plinthudult

Muhammad

Aziz

Brookes

et al. 2017

J. Soil Sci. Plant Nutr.

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Agricultural organic matter is a major component of organic waste on earth that significantly contributes in environmental pollution. The conversion of organic waste into biochar and addition to soil is the recommended strategy to reduce the negative environmental effects of organic waste and to increase the soil fertility. Therefore, in this study, we evaluated the changes in nutrient concentrations, rice yield and microbial community structure in a Psammaquent and Plinthudult at harvest following incorporation of biochar derived from wheat straw. Wheat straw biochar generated at 300-500 ˚C under oxygen limited conditions was applied, in a greenhouse experiment to a Psammaquent and Plinthudult at a rate of 3% weight/weight (w/w). The biochar addition to both types of soil significantly increased the soil pH from 4.2 to 6.2 and 4.7 to 6.7, total nitrogen by 135 and 37%, and organic carbon by 90 and 80%, in the Psammaquent and Plinthudult, respectively as compared to the respective controls.The dissolved organic nitrogen (DON) was decreased by 24 and 15% and dissolved organic carbon (DOC) by 40 and 44% in Psammaquent and Plinthudult, respectively. The biochar decreased the concentrations of K leached by 24%, B by 25%, Cu by 80%, Mn by 37% and Zn by 33% in the Psammaquent and B by 50%, Cu by 60%, Fe by 43%, Mn by 69% and Zn by 83% in the Plinthudult as compared to the controls. The wheat straw biochar addition to two soils increased the accumulation of Mn, Mo, Na and Zn in both rice straw and grain and decreased the leaching of nutrients, organic carbon and nitrogen at rice harvest and increased the leaching of Ca, Na, and Mg in both Psammaquent and Plinthudult. The biochar increased the pH, TOC and nitrogen in both soils. The biochar significantly changed the PLFA concentration indicating different microbial community pattern in soils growing rice compared to their controls. Thus, the results indicated that wheat straw biochar increased the productivity of rice in the Plinthudult and Psammaquent.

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“…This is not only a great waste of natural resources but also a significant source of air pollution [2]. Hence, the conversion of crop straw into biochar is causing more and more attention in China, and it could be a beneficial soil amendment as a novel crop straw management [3].…”

Section: Introductionmentioning

confidence: 99%

Tobacco Growth Responses and Soil Properties to Rice-straw Biochar Applied on Yellow-brown Soil in Central China

Zhang¹,

Zhang²,

Shen³

et al. 2017

dteees

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Abstract.Pot experiments were conducted to study the effect of straw biochar application on tobacco growth and soil fertility. The growth of ground parts of tobacco was promoted by biochar application at appropriate levels (0.2-1.0%), while it was inhibited by high-level (5%) biochar application. The growth of root system was promoted more extensively by biochar application at all levels tested than was the growth of the aboveground organs, with 5% biochar addition resulting in the highest root-shoot ratio, which also delayed the senility of the root system, including of lateral roots. The taproot length, the first-and second-order lateral roots and the root-shoot ratio of tobacco increased during the early growth stage but decreased at latter growth stage in all treatments. Moreover, with the increasing amount of biochar applied, soil pH and soil nutritional indicators including organic carbon, alkali-hydrolysable N, available P and available K increased with the highest value was observed in the 5% biochar treatment. Our results suggested that straw biochar application at appropriate levels (0.2-1.0%) would lead to an increase in soil fertility and promote tobacco growth. The field experiments are required to test the effect of biochar application on tobacco growth and soil environment with different soil types in tobacco planting area in China.

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Quantifying the effect of biochar amendment on soil quality and crop productivity in Chinese rice paddies

Cited by 95 publications

References 34 publications

Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Impact of wheat straw biochar on yield of rice and some properties of Psammaquent and Plinthudult

Tobacco Growth Responses and Soil Properties to Rice-straw Biochar Applied on Yellow-brown Soil in Central China

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