Effect of biochar application on corn and soybean yield in Michigan and Ohio

Silva‐Pumarada, Gabriela; Shrestha, Raj K.; Chiavegato, Marília; Mercer, Kristin; Agyei, Benjamin K.; Singh, Maninder P.; Lindsey, Laura E.

doi:10.1002/cft2.20245

Crop Forage & Turfgrass Mgmt

2023

DOI: 10.1002/cft2.20245

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Effect of biochar application on corn and soybean yield in Michigan and Ohio

Gabriela Silva‐Pumarada,

Raj K. Shrestha,

Marília Chiavegato

et al.

Abstract: Biochar was applied to three field locations in fall 2020 to test impact on corn and soybean yield. In 2021, corn yield was unaffected by biochar application compared to the non‐treated control. In 2022, soybean yield increased with biochar application at one out of three locations This article is protected by copyright. All rights reserved

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Does biochar improve nitrogen use efficiency in maize?

Preza Fontes,

Greer,

Pittelkow

2023

GCB Bioenergy

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Biochar is promoted as a means of improving soil fertility. Yet, few experiments have investigated its potential to improve nitrogen (N) use efficiency for high‐yielding maize production in the U.S. Midwest. We tested the hypothesis that biochar application increases inorganic soil N availability during maize growth, leading to higher grain yields and N recovery efficiency while reducing the risk of N leaching following harvest. Four N fertilizer rates (0, 90, 179, and 269 kg ha−1 as urea ammonium nitrate [UAN] solution) were applied with or without biochar (10 Mg ha−1) before planting in a two‐year field study. Inorganic soil N concentration was measured during the growing season (0–15 cm), and deep soil cores were obtained following harvest (0–90 cm). Results show that biochar did not affect maize yield, crop N uptake, or N recovery efficiency (by the difference method) across N rates, and there was no biochar by N rate interaction. While biochar lowered soil inorganic N concentrations on several sampling dates, this did not translate into seasonal differences in cumulative soil N availability, although grain yields in the unfertilized control were ~10% lower with biochar, suggesting net N immobilization. Biochar partially reduced the risk of N leaching following harvest by decreasing soil N concentrations at 30–60 cm, but mean concentrations for 0–90 cm were not different. Compared to previous work highlighting the benefits of biochar in arid climates with low soil fertility, we found no evidence of increased crop yield, NRE, or reduced risk of N leaching on Mollisols in a temperate climate.

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Does biochar improve nitrogen use efficiency in maize?

Preza Fontes,

Greer,

Pittelkow

2023

GCB Bioenergy

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show abstract

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Effect of biochar application on corn and soybean yield in Michigan and Ohio

Cited by 1 publication

References 12 publications

Does biochar improve nitrogen use efficiency in maize?

Does biochar improve nitrogen use efficiency in maize?

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