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Agriculture 2015, 5(3), 668-681; doi:10.3390/agriculture5030668

Biochars Derived from Gasified Feedstocks Increase the Growth and Improve Nutrient Acquisition of Triticum aestivum (L.) Grown in Agricultural Alfisols

US Department of Agriculture Agricultural Research Service National Forage Seed and Production Research Center, Corvallis, OR 97331, USA
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Academic Editor: Bin Gao
Received: 18 June 2015 / Revised: 28 July 2015 / Accepted: 12 August 2015 / Published: 19 August 2015
(This article belongs to the Special Issue Effects of Biochar on Soil Fertility and Crop Production)
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Abstract

Biochars are produced by low-oxygen gasification or pyrolysis of organic waste products, and can be co-produced with energy, achieving waste diversion and delivering a soil amendment that can improve agricultural yields. Although many studies have reported the agronomic benefits of biochars produced from pyrolysis, few have interrogated the ability of gasified biochars to improve crop productivity. An earlier study described the ability of a biochar that was derived from gasified Kentucky bluegrass (KB) seed screenings to impact the chemistry of acidic agricultural soils. However, that study did not measure the effects of the biochar amendment on plant growth or on nutrient acquisition. To quantify these effects we conducted a greenhouse study that evaluated wheat grown in agricultural soils amended with either the KB-based biochar or a biochar derived from a blend of woody mixed-waste. Our studies indicated that biochar amended soils promoted the growth of wheat in these agricultural alfisols. Our elemental analysis indicated that an attenuation of metal toxicity was likely responsible for the increased plant growth. The results of our study are placed in the context of our previous studies that characterized KB-sourced biochar and its effects on soil chemistry. View Full-Text
Keywords: Triticum aestivum L.; gasification; biochar; seed screenings; wheat; nutrition; acid soil; Kentucky bluegrass; aluminum toxicity Triticum aestivum L.; gasification; biochar; seed screenings; wheat; nutrition; acid soil; Kentucky bluegrass; aluminum toxicity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Trippe, K.M.; Griffith, S.M.; Banowetz, G.M.; Whitaker, G.W. Biochars Derived from Gasified Feedstocks Increase the Growth and Improve Nutrient Acquisition of Triticum aestivum (L.) Grown in Agricultural Alfisols. Agriculture 2015, 5, 668-681.

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