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Mathias Neumann Andersen

Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam

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Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam. / Danso, Eric Oppong; Yakubu, Adam; Kugblenu-Darrah, Yvonne et al.

In: Field Crops Research, Vol. 243, 107628, 01.11.2019.

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Danso EO, Yakubu A, Kugblenu-Darrah Y, Arthur E, Manevski K, Sabi EB et al. Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam. Field Crops Research. 2019 Nov 1;243:107628. doi: 10.1016/j.fcr.2019.107628

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Danso, Eric Oppong ; Yakubu, Adam ; Kugblenu-Darrah, Yvonne et al. / Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam. In: Field Crops Research. 2019 ; Vol. 243.

Bibtex

@article{6ad98867e25d4e6488481bb53a5a2d6b,
title = "Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam",
abstract = "Continuous cultivation of staple crops to feed a growing population in the semi-deciduous agro-ecological zone of eastern Ghana (SDAG) has led to degraded soils and decreased crop yields. Biochar constitutes a potential remedy as it is often reported to improve soil health and increase crop yield of infertile soils. We thus conducted an experiment over two seasons to evaluate the impact of rice straw biochar on yield, radiation interception and water productivity of maize grown in the SDAG. The biochar was incorporated into the soil at rates of 0, 15 and 30 t ha−1 under irrigated and non-irrigated conditions. Maize grain yield (GY), accumulated intercepted photosynthetic active radiation (IPAR) and water productivity (WP) were compared among treatments. Regardless of season, the highest GY, IPAR and WP were achieved in plots amended with 30 t ha−1 biochar. A biochar rate of 30 t ha−1 increased grain yield by 17% and 36% and IPAR by 19% and 25% in 2017 and 2018 seasons, respectively, compared to a no biochar control. For both seasons, maize GY for the 15 t ha−1 treatment was statistically similar to that of 0 t ha−1 treatment whether irrigated or not. Irrigation increased grain yield by 9% and IPAR by 3% in 2017 and with 30% and 17%, respectively, in the dryer 2018 season. The effects of biochar and irrigation were additive. Water productivity from the 30 t ha−1 treatment was significantly higher in the non-irrigated than in the irrigated plots. Overall, in the SDAG, a biochar soil amendment rate of 30 t ha−1 might be a viable solution for farmers to increase yield and enhance water productivity of maize. Future studies should focus on the effect of biochar on the soil and crops over a longer time span in order to recommend viable management options to the farmers in SDAG.",
keywords = "Ghana, Ratio vegetation index, Semi-deciduous agro-ecological zone, Soil moisture deficit, Spectral reflectance",
author = "Danso, {Eric Oppong} and Adam Yakubu and Yvonne Kugblenu-Darrah and Emmanuel Arthur and Kiril Manevski and Sabi, {Edward Benjamin} and Stephen Abenney-Mickson and Kwadwo Ofori and Finn Plauborg and Andersen, {Mathias Neumann}",
year = "2019",
month = nov,
day = "1",
doi = "10.1016/j.fcr.2019.107628",
language = "English",
volume = "243",
journal = "Field Crops Research",
issn = "0378-4290",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Impact of rice straw biochar and irrigation on maize yield, intercepted radiation and water productivity in a tropical sandy clay loam

AU - Danso, Eric Oppong

AU - Yakubu, Adam

AU - Kugblenu-Darrah, Yvonne

AU - Arthur, Emmanuel

AU - Manevski, Kiril

AU - Sabi, Edward Benjamin

AU - Abenney-Mickson, Stephen

AU - Ofori, Kwadwo

AU - Plauborg, Finn

AU - Andersen, Mathias Neumann

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Continuous cultivation of staple crops to feed a growing population in the semi-deciduous agro-ecological zone of eastern Ghana (SDAG) has led to degraded soils and decreased crop yields. Biochar constitutes a potential remedy as it is often reported to improve soil health and increase crop yield of infertile soils. We thus conducted an experiment over two seasons to evaluate the impact of rice straw biochar on yield, radiation interception and water productivity of maize grown in the SDAG. The biochar was incorporated into the soil at rates of 0, 15 and 30 t ha−1 under irrigated and non-irrigated conditions. Maize grain yield (GY), accumulated intercepted photosynthetic active radiation (IPAR) and water productivity (WP) were compared among treatments. Regardless of season, the highest GY, IPAR and WP were achieved in plots amended with 30 t ha−1 biochar. A biochar rate of 30 t ha−1 increased grain yield by 17% and 36% and IPAR by 19% and 25% in 2017 and 2018 seasons, respectively, compared to a no biochar control. For both seasons, maize GY for the 15 t ha−1 treatment was statistically similar to that of 0 t ha−1 treatment whether irrigated or not. Irrigation increased grain yield by 9% and IPAR by 3% in 2017 and with 30% and 17%, respectively, in the dryer 2018 season. The effects of biochar and irrigation were additive. Water productivity from the 30 t ha−1 treatment was significantly higher in the non-irrigated than in the irrigated plots. Overall, in the SDAG, a biochar soil amendment rate of 30 t ha−1 might be a viable solution for farmers to increase yield and enhance water productivity of maize. Future studies should focus on the effect of biochar on the soil and crops over a longer time span in order to recommend viable management options to the farmers in SDAG.

AB - Continuous cultivation of staple crops to feed a growing population in the semi-deciduous agro-ecological zone of eastern Ghana (SDAG) has led to degraded soils and decreased crop yields. Biochar constitutes a potential remedy as it is often reported to improve soil health and increase crop yield of infertile soils. We thus conducted an experiment over two seasons to evaluate the impact of rice straw biochar on yield, radiation interception and water productivity of maize grown in the SDAG. The biochar was incorporated into the soil at rates of 0, 15 and 30 t ha−1 under irrigated and non-irrigated conditions. Maize grain yield (GY), accumulated intercepted photosynthetic active radiation (IPAR) and water productivity (WP) were compared among treatments. Regardless of season, the highest GY, IPAR and WP were achieved in plots amended with 30 t ha−1 biochar. A biochar rate of 30 t ha−1 increased grain yield by 17% and 36% and IPAR by 19% and 25% in 2017 and 2018 seasons, respectively, compared to a no biochar control. For both seasons, maize GY for the 15 t ha−1 treatment was statistically similar to that of 0 t ha−1 treatment whether irrigated or not. Irrigation increased grain yield by 9% and IPAR by 3% in 2017 and with 30% and 17%, respectively, in the dryer 2018 season. The effects of biochar and irrigation were additive. Water productivity from the 30 t ha−1 treatment was significantly higher in the non-irrigated than in the irrigated plots. Overall, in the SDAG, a biochar soil amendment rate of 30 t ha−1 might be a viable solution for farmers to increase yield and enhance water productivity of maize. Future studies should focus on the effect of biochar on the soil and crops over a longer time span in order to recommend viable management options to the farmers in SDAG.

KW - Ghana

KW - Ratio vegetation index

KW - Semi-deciduous agro-ecological zone

KW - Soil moisture deficit

KW - Spectral reflectance

UR - http://www.scopus.com/inward/record.url?scp=85072641486&partnerID=8YFLogxK

U2 - 10.1016/j.fcr.2019.107628

DO - 10.1016/j.fcr.2019.107628

M3 - Journal article

AN - SCOPUS:85072641486

VL - 243

JO - Field Crops Research

JF - Field Crops Research

SN - 0378-4290

M1 - 107628

ER -