Stimulus of nitrogen fertilizers and soil characteristics on maize yield and nitrous oxide emission from Ferric Luvisol in the Guinea Savanna agro-ecological zone of Ghana

Atakora, Williams K.; Kwakye, P. K.; Weymann, Daniel; Brüggemann, Nicolas

doi:10.1016/j.sciaf.2019.e00141

Cited by 14 publications

(14 citation statements)

References 30 publications

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“…This finding is consistent with the results of Lopez-Pereira and Morris [61] and MacCarthy et al [37]. A maize grain yield range of 231 kg ha −1 with no mineral N fertilizer and 3831 kg ha −1 following the addition of 120 kg N ha −1 was observed [62].…”

Section: Yield Sowing Windows and Climate Variablessupporting

confidence: 92%

Monitoring and Modelling Analysis of Maize (Zea mays L.) Yield Gap in Smallholder Farming in Ghana

et al. 2020

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Modelling and multiple linear regression were used to explore the reason for low maize yield in the Atebubu-Amantin and West Mamprusi Districts of Ghana, West Africa. The study evaluated maize yields on twenty farms against measures of soil fertility, agronomic attributes and soil water availability. Correlations between yield, soil fertility, rain, crop density, and weed biomass, were low, and no single factor could explain the low yields. A 50-year virtual experiment was then set up using the Agricultural Production Systems Simulator (APSIM) to explore the interactions between climate, crop management (sowing date and nitrogen fertilization) and rooting depth on grain yield and nitrate (NO3-N) dynamics. The analysis showed that a lack of optimal sowing dates that synchronize radiation, rainfall events and nitrogen (N) management with critical growth stages explained the low farm yields.

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Section: Yield Sowing Windows and Climate Variablessupporting

confidence: 92%

Monitoring and Modelling Analysis of Maize (Zea mays L.) Yield Gap in Smallholder Farming in Ghana

et al. 2020

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“…This caused sub-basins 1 and 2 to record the highest amount of moisture. Sub-basin 5 however consists of only Ferric Luvisol together with Savannah, rainfed cropland, and open broadleaf deciduous forest, hence, the resulting low amount of soil moisture (Atakora et al, 2019). Furthermore, soil moisture was lower in the southern sub-basins than in the northern ones despite the almost equal volume of monthly and annual rainfall recorded for the study period.…”

Section: Quantification Of Soil Moisturementioning

confidence: 90%

Modeling soil water balance of an agricultural watershed in the Guinea Savannah Agro-ecological Zone; a case of the Tono irrigation dam watershed

Ampofo¹,

Ampadu²,

Douti³

et al. 2020

GJSTD

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Water is the most significant of all the requirements for plant growth and development. Its availability or scarcity in the soil can denote a successful harvest, reduction in yield, or complete failure. Though Tono is a small community in the Kassena Nankana East Municipality in Upper East Region of Ghana, farmers in the area contribute significantly to the availability of food products in neighboring communities, and even in some parts of southern Ghana. However, changing climate and landscape dynamics are perceived to be the primary cause of decreasing water availability and responsible for the dwindling farming fortunes. The study therefore investigated the changes to soil water balance occurring within the Tono dam watershed, as well as changes to the landuse/landcover (LULC) of the area and its impacts on crop production using the Soil and Water Assessment Tool (SWAT). The LULC continues to change through anthropogenic activities thereby causing variations in the hydrological cycle over time. A 30-year period from 1984 to 2014 was used as the simulation period to run the model. Two (2) LULC maps and change scenarios for 1984 through to 2014 were assessed. The results revealed a relationship between landcover and the response to hydrology, in that, a decrease in landcover causes a decrease in surface water, soil moisture, and a corresponding infinitesimal decrease in evapotranspiration. The results showed a 17.6%, 9.6%, and 1.6% decrease in rainfall, soil moisture and evapotranspiration, respectively. The results showed the ability of the SWAT model to reveal spatio-temporal variation of the change in the landscape and the associated changes arising from climate change having significant effects on the Tono catchment.

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“…et al, 2018). This has affected soil nitrogen (N) fertility, microbial biomass and crop productivity due to the continuous depletion of soil nutrients (Atakora et al, 2019). Consequently, these regions are often perceived as food insecure (Ngetich et al, 2012).…”

Section: Public Interest Statementmentioning

confidence: 99%

“…With current maize yield less than 2 t/ha, N has been considered the most determinant of its yield (Braimoh & Vlek, 2006;Mehmood, 2017;Ramírez et al, 2016). For example, Atakora et al (2019) suggested that because of the aggravated poor soil fertility in Sub-humid region of Ghana, the production of maize without N fertilization should be discouraged. Unfortunately, these inorganic N-based fertilizers are too expensive and beyond the reach of smallholder farmers.…”

Section: Public Interest Statementmentioning

confidence: 99%

“…Unfortunately, these inorganic N-based fertilizers are too expensive and beyond the reach of smallholder farmers. In addition, within the same study area, Atakora et al (2019) attempted to promote the use of inorganic N-based fertilizers to increase maize yield. However, significant amount of N 2 0 emission was estimated regardless of the type (ammonia sulphate, Urea and NPK-60-40-40) and amount (60 to 120 kg N/ha) of inorganic N fertilizer that was applied to maize plant.…”

Section: Public Interest Statementmentioning

confidence: 99%

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Improved legume fallows: Influence on nitrogen and microbial dynamics, and maize (Zea maysL) grain yield in sub-humid zone of West Africa

Ochire-Boadu

Abunyewa

Kaba

et al. 2020

Cogent Food & Agriculture

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This study tested the effect of four improved fallow legumes; Leucaena leucophala, Cajanus cajan, Albizia lebbeck and Moringa oleifera (for 1 and 2 year period) on soil nitrogen, microbial dynamics and maize grain yield in the sub-humid zone of Ghana. The study was conducted at the University for Development Studies experimental station, at latitude 9° 25ꞌ N, longitude 0° 58 ꞌ W and at 183 m asl. The layout of the experiment was a randomized complete block design (RCBD) with four replications. The pattern of decomposition for years 1 and 2 was similar, however, weight loss showed a decreasing pattern with sampling time. At 48 days, Cajanus lost 27% of its initial weight compared to Leucaena and Albizia (54%) and Moringa (94%). Albizia plots had the highest total microbial load, with bacteria being the dominant soil microorganism in all treatments. Maize yield was higher in the second year and in Albizia plot (1.72 kg/ha) while the control recorded the least yield (0.89 kg/ha) in the second year. We established that biomass amended plots improved soil N, microbial biomass and maize yield compared to control plots in both years 1 and 2. Microbial biomass and N mineralised were indicators of improved soil fertility and correlated positively with maize yield in the biomass amended plots. In conclusion, we recommend Albizia biomass as a good source of manure after 2 years of establishment under sub-humid condition.

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Stimulus of nitrogen fertilizers and soil characteristics on maize yield and nitrous oxide emission from Ferric Luvisol in the Guinea Savanna agro-ecological zone of Ghana

Cited by 14 publications

References 30 publications

Monitoring and Modelling Analysis of Maize (Zea mays L.) Yield Gap in Smallholder Farming in Ghana

Monitoring and Modelling Analysis of Maize (Zea mays L.) Yield Gap in Smallholder Farming in Ghana

Modeling soil water balance of an agricultural watershed in the Guinea Savannah Agro-ecological Zone; a case of the Tono irrigation dam watershed

Improved legume fallows: Influence on nitrogen and microbial dynamics, and maize (Zea maysL) grain yield in sub-humid zone of West Africa

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