Fertilizer nitrogen uptake by rice increased by biochar application

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

doi:10.1007/s00374-014-0908-9

Cited by 85 publications

(55 citation statements)

References 17 publications

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“…A positive response to crop growth by biochar application was observed in our study, this is consistent with previous findings that biochar and N fertilizer increased crops production (Van Zwieten et al, 2010a;Zheng et al, 2013;Huang et al, 2014). However, only high amount of urea application received the positive effect.…”

Section: Discussionsupporting

confidence: 93%

Maize stover biochar increases urea ( 15 N isotope) retention in soils but does not promote its acquisition by plants during a 4-year pot experiment

Liu

Cheng

Sun

et al. 2017

Chil. j. agric. res.

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382Biochar as a soil amendment has been shown to improve soil quality and crop growth. However, biochar's effect on urea-N use efficiency in long term is not well elucidated. Here we studied urea-N ( 15 N isotope) allocation in plants and soil in the presence of maize (Zea mays L.) stover biochar (equivalent to 46 t ha -1 ) during a 4-yr pot trial. Results showed that biochar only increased maize biomass (about 9%) with high amount of urea addition, which indicates the increased maize dry weight by biochar application could be attributed to synergistic effects between biochar and urea. Soil total N contents and fertilizer N retention were increased by 20% and 10.47% to 94.52%, respectively, indicating that biochar was more capable for fertilizer N retention than promote plant adsorption. Moreover, inorganic N content in biochar treatment was greatly increased, which implies the increased N mineralization. In total, we concluded that biochar application was a potential urea enhancer during plant production.

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Section: Discussionsupporting

confidence: 93%

Maize stover biochar increases urea ( 15 N isotope) retention in soils but does not promote its acquisition by plants during a 4-year pot experiment

Liu

Cheng

Sun

et al. 2017

Chil. j. agric. res.

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“…For both cases of our study, the leaf growth, total fresh weight, aboveground fresh weight, and fresh and dry weight of underground parts of plants increased with biochar ratio, and nearly all the highest values appeared in the treatment with the highest amount of biochar. Therefore, biochar can Engineering Applications of Biocharpromote plant growth, which has also been reported in the previous studies [7,24]. Because no fertilizer was applied after adding biochar, the biomass increase suggests that biochar might work as a fertilizer [25] or fertilizer enhancer [24], by ameliorating soil pH, CEC, base saturation, and other physicochemical properties, by affecting soil nutrient availability, such as the effectiveness of K, Ca, Na, Mg, N, P, and other elements [26], or by increasing the rhizosphere and soil nitrogen retention indirectly [27].…”

Section: Effects Of Biochar On Plant Growthsupporting

confidence: 80%

“…Biochar is an emerging environment functional material and has been proven to be an efficient adsorbent for toxic organic pollutants and heavy metals [1][2][3][4]. With excellent physicochemical structure, biochar has great agricultural benefits and the potential for remediation of contaminated soils by improving soil physicochemical properties [5,6], increasing microbial activity in soil [7,8], reducing nutrient leaching [9], and enhancing nutrient availability [10], as well as directly or indirectly decreasing the contaminant bioavailability in water and soil. Additionally, biochar is a renewable material that is low cost, sustainable, and environment friendly.…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar on Plant Growth and Cadmium Uptake: Case Studies on Asian Lotus (Nelumbo nucifera) and Chinese Sage (Salvia miltiorrhiza)

Tian¹,

Liu²,

Xiang³

2017

Engineering Applications of Biochar

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Application of biochar has many benefits in agriculture, to understand benefits of biochar in crop production and remediation of heavy metal pollution, Asian lotus (Nelumbo nucifera) as an aquatic crop and Chinese sage (Salvia miltiorrhiza) as a traditional medicinal herb were used to evaluate biochar's effects on plant growth and cadmium (Cd) accumulation in plants in the artificially Cd-polluted condition in containers. In both cases, adding biochar (4% to 32% in soil mix) significantly increased plant biomass. However, its impact on plant physiological traits were unclear. In Asian lotus, the Cd content in rhizomes, petioles, and leaves significantly increased by 69%, 81% and 55%, respectively as 32% biochar added. Meanwhile, a maximum reduction (71%) showed on bioaccumulation coefficient of Cd, and an up to 1.3 folds increase occurred on Cd transfer coefficient of underground to aboveground tissues, which indicated that biochar effectively prevented Cd uptake in major edible parts. In Chinese sage, adding 32% biochar significantly decreased Cd content in leaves and roots by 52.81% and 43.63%, respectively. Therefore, as a valuable soil amendment of improving plant growth and reducing heavy metal uptake, biochar has a huge potential in green agriculture production and remediation of heavy-metal polluted environment.

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“…Therefore, biochar can promote plant growth, as is reported in the previous studies [8,20]. Because no fertilizer was applied after adding biochar, the biomass increase suggests that biochar might work as a fertilizer enhancer, or affects soil nutrient availability, such as the effectiveness of K, Ca, Na, Mg, N, P, or increase the rhizosphere and soil nitrogen retention indirectly [20][21][22].…”

Section: Figurementioning

confidence: 76%

“…Biochar is a new, beneficial ecological restoration material for agricultural production. It can improve the physical and chemical properties of soil, increase microbial activity, reduce nutrient leaching, and enhance nutrient availability, thus contributing to plant growth [5][6][7][8][9][10]. Biochar also can reduce the bio-availability of pollutants, especially for heavy metals, and is a highly efficient adsorbent [3,11,12].…”

Section: Introductionmentioning

confidence: 99%

Biochar Improved Growth of an Important Medicinal Plant(Salvia miltiorrhiza Bunge) and Inhibited its Cadmium Uptake

2016

J Plant Biol Soil Health

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Effects of biochar on the growth of Salvia miltiorrhiza Bunge and heavy metal accumulation in plant tissues were evaluated in artificially Cd-polluted soil. Results showed that plant biomass increased with the proportion (0 to 32%) of biochar in the soil mix. However, the impacts of biochar on plant physiological indicators were not clear. Compared with the control, the addition of biochar decreased Cd content in leaves and roots of S. miltiorrhiza by 52.8% and 43.6%, respectively. Correspondingly, the bioaccumulation coefficient of Cd was reduced, and the Cd transfer coefficient decreased with the increase of biochar indicating that biochar inhibited Cd to transfer from soil to plant. Therefore, biochar has potential for remediation of Cd or possibly other heavy-metal polluted soils in agricultural crop production.

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Fertilizer nitrogen uptake by rice increased by biochar application

Cited by 85 publications

References 17 publications

Maize stover biochar increases urea ( 15 N isotope) retention in soils but does not promote its acquisition by plants during a 4-year pot experiment

Maize stover biochar increases urea ( 15 N isotope) retention in soils but does not promote its acquisition by plants during a 4-year pot experiment

Effects of Biochar on Plant Growth and Cadmium Uptake: Case Studies on Asian Lotus (Nelumbo nucifera) and Chinese Sage (Salvia miltiorrhiza)

Biochar Improved Growth of an Important Medicinal Plant(Salvia miltiorrhiza Bunge) and Inhibited its Cadmium Uptake

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