Crop management adaptations to improve and stabilize crop yields under low-yielding conditions in the Sudan Savanna of West Africa

Danso, Isaac; Webber, Heidi; Bourgault, Maryse; Ewert, Frank; Naab, Jesse B.; Gaiser, Thomas

doi:10.1016/j.eja.2018.08.001

Cited by 16 publications

(19 citation statements)

References 29 publications

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“…The field experiments to calibrate and evaluate the DSSAT tillage model have been described earlier (Danso, 2015;Danso et al, 2018aDanso et al, , 2018bNafi et al, 2020Nafi et al, , 2019. The experiments were conducted from 2012 to 2016 on farmers' fields in Dassari (10˚49´N, 1˚04´E), Atakora Province, Republic of Benin, and in Dano (11˚10´N, 2˚38´W), Ioba province, Burkina-Faso.…”

Section: Site Descriptionmentioning

confidence: 99%

“…The study sites belong to the Sudan-Savanna agro-ecological zone, characterized by a semi-humid climate. This region has a monomodal rainfall regime of 3-6 months from May to October with a mean rainfall ranges between 900 mm to 1000 mm, while the mean temperature is 15 ˚C during the night and 40 ˚C during the day in the rainy season (Danso et al, 2018a(Danso et al, , 2018bKpongor, 2007). The mean monthly cumulative rainfall in Dano and Dassari during the maize growing seasons (June to October) in 2014 and 2016 were 780 mm and 850 mm, respectively (Nafi et al, 2019).…”

Section: Site Descriptionmentioning

confidence: 99%

“…A factorial combination of 2 tillage operations (contour ridge and reduced tillage), 1 crop residue treatment (with crop residue), and 2 N fertilizer rates (recommended N fertilizer: 60 kg ha -1 and double recommended N rate: 120 kg ha -1 ) was implemented as treatments in the model to compare the effect of the two tillage options under baseline and future warmer climate scenarios. During the scenario simulation, we omitted the 0 Kg ha -1 N fertilizer treatment (N0) as evidenced from experimental data that N0 has no significant effects on maize yield, N use efficiency, and soil properties (Danso et al, 2018a(Danso et al, , 2018bNafi et al, 2020Nafi et al, , 2019. A common planting date, 7 th July was set for all simulations depending on the number of consecutive rainfall days.…”

Section: Scenario Simulation Setupmentioning

confidence: 99%

See 2 more Smart Citations

Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

Nafi

Webber

Danso³

et al. 2021

Soil and Tillage Research

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Section: Site Descriptionmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

Section: Scenario Simulation Setupmentioning

confidence: 99%

See 1 more Smart Citation

Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

Nafi

Webber

Danso³

et al. 2021

Soil and Tillage Research

Self Cite

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“…However, cultivated land is a semi-artificial and semi-natural ecosystem, and the CLQ should be the integration of multiple qualities [16]. Therefore, some other elements of CLQ have gradually attracted attention, such as field management [15,17], ecological environment [18,19], and productivity [20,21].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Patterns of Cultivated Land Quality Integrated with Multi-Source Remote Sensing: A Case Study of Guangzhou, China

et al. 2022

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Scientifically revealing the spatiotemporal patterns of cultivated land quality (CLQ) is crucial for increasing food production and achieving United Nations Sustainable Development Goal (SDG) 2: Zero Hunger. Although studies on the evaluation of CLQ have been conducted, an effective evaluation system that is suitable for the macro-regional scale has not yet been developed. In this study, we first defined the CLQ from four aspects: soil fertility, natural conditions, construction level, and cultivated land productivity. Then, eight indicators were selected by integrating multi-source remote sensing data to create a new CLQ evaluation system. We assessed the spatiotemporal patterns of CLQ in Guangzhou, China, from 2010 to 2018. In addition, we identified the main factors affecting the improvement of CLQ. The results showed that the CLQ continuously improved in Guangzhou from 2010 to 2018. The area of high-quality cultivated land increased by 13.7%, which was mainly distributed in the traditional agricultural areas in the northern and eastern regions of Guangzhou. The areas of medium- and low-quality cultivated land decreased by 8.1% and 5.6%, respectively, which were scattered throughout the whole study area. The soil fertility and high productivity capacity were the main obstacle factors that affected the improvement of CLQ. Simultaneously, the obstacle degree of stable productivity capacity gradually increased during the study period. Therefore, the targeted improvement measures could be put forward by applying biofertilizers, strengthening crop management and constructing well-facilitated farmland. The new CLQ evaluation system we proposed is particularly practical at the macro-regional scale, and the results provided targeted guidance for decision makers to improve CLQ and promote food security.

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“…Most studies target either one single crop species [5][6][7] or a few at best [8][9][10][11], usually of industrial or commercial importance, and frequently those which potentially can provide standardized goods of global agricultural value chains. Research on important regional crops, such as millet, lags behind.…”

Section: Introductionmentioning

confidence: 99%

Simulating the Capacity of Rainfed Food Crop Species to Meet Social Demands in Sudanian Savanna Agro-Ecologies

Martínez

Fürst

2021

Land

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West African land use systems have been experiencing one of the fastest transformations in the world over recent decades. The Sudanian savanna is an interesting example, as it hosts the cultivation of some crops typical of the Guinean savanna as well as some of the Sahel. Therefore, this region is likely to experience further changes in its crop portfolio over the next decades due to crop migration processes responding to environmental change. Simulation approaches can guide the development of agricultural production strategies that contribute to sustainably optimize both food and fuel production. This study used crop models already available in the APSIM platform to simulate plant production and the soil water and nutrient cycles of plots cultivated with groundnut, millet, sorghum, maize, and rice on three (two upland and one lowland) soil fertility classes and subjected to five levels of management (conventional tillage without residue incorporated to the soil and nor fertilizer application; conventional tillage without residue incorporated to the soil and 5 kg N ha−1; conventional tillage with residue incorporated to the soil 20 kg N ha−1, and no-till herbicide treated with 50 and 100 kg N ha−1). Simulation outputs were contrasted against data reported in the literature and converted into nutritional, fuel and feed yields based on the qualities and uses of their different plant comparments. Groundnut yields outperformed all of the cereals across most growing conditions, nutritional and feed indicators. Maize and rice provided the highest caloric yields, with the least fertile growing conditions. Sorghum provided average to high caloric and iron yields across all of the treatments. Millet provided the highest iron yields and high fuel yields across most treatments. Some simulated treatments could not be compared against literature review data because of their absence in actual cropping systems and the lack of experimental data. Plant production was simulated with higher accuracy than the other components of the simulation. In particular, there is a need to better parameterize and validate the rice, groundnut and millet models under Sudanian savanna conditions in order to perform more accurate comparative assessments among species.

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Crop management adaptations to improve and stabilize crop yields under low-yielding conditions in the Sudan Savanna of West Africa

Cited by 16 publications

References 29 publications

Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

Spatiotemporal Patterns of Cultivated Land Quality Integrated with Multi-Source Remote Sensing: A Case Study of Guangzhou, China

Simulating the Capacity of Rainfed Food Crop Species to Meet Social Demands in Sudanian Savanna Agro-Ecologies

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