Optimizing Fertilizer Use within an Integrated Soil Fertility Management Framework in Burkina Faso

Ouattara, Korodjouma; Sermé, Idriss; Bandaogo, Alimata A.; Ouedraogo, S.; Adama, Sohoro; Gnankambary, Zacharia; Youl, Sansan; Yaka, P.; Paré, Théophile

doi:10.1079/9781786392046.0040

Cited by 10 publications

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“…Therefore, representation of the yield response to N in Nigeria is more likely to improve by considering the mean or median response of all studies rather than to rely solely on the results from the current research (Dawi et al., 2017). This is even more important for P and K responses which were on average absent in the current study but, on average, occurred in the other studies (Ouattara et al., 2017). The mean response to N in the current study was, however, similar to the mean derived from other research, but the current results give good justification for having separate response functions for Luvisols and Ferralsols.…”

Section: Discussionsupporting

confidence: 43%

Maize response to applied nutrients for West African savannas

et al. 2020

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Maize (Zea mays L.) grain production increased by 428% in Burkina Faso and 82%in Nigeria during the past 20 years primarily due to increased production area. To improve profitability, yield ha −1 needs to be increased. Yield response functions for nitrogen (N), phosphorus (P), and potassium (K) and response to a Mg-S-Zn-B (MgSZnB) treatment were determined from results of 16 studies conducted in the Sudanian and Guinean savannas in 2014 and 2015. Mean grain yield with no fertilizer applied and mean response to the economically optimum N rate (EONR) were 0.82 and 2.18 Mg ha −1 in Burkina Faso and 3.35 and 0.48 Mg ha −1 in Nigeria. There was little response to P and K. The EONR ranged from 45 to >120 kg ha −1 for Burkina Faso, with higher EONR for Luvisol compared with Ferralsol soil.The mean EONR for Nigeria was only 24 kg ha −1 . The results indicated high profit potential for N application at the EONR in Burkina Faso, but less potential in Nigeria despite higher yields. Yield increases and net return to N could be increased by 72% for financially constrained farmers by applying the same amount of fertilizer N at 50% EONR to twice as much land. Yield was increased by 36% with compost and 40% with MgSZnB application in Burkina Faso but with no effects in Nigeria. The response to MgSZnB requires further investigation in Burkina Faso to optimize nutrient-specific responses. Inconsistent responses to P indicate a new for more research.Abbreviations: EOR, economically optimal rate; EONR, the economically optimal N rate; MgSZnB, fertilizer treatment of magnesium, sulfur, zinc, and boron; SY, site-year.

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Section: Discussionsupporting

confidence: 43%

Maize response to applied nutrients for West African savannas

et al. 2020

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“…The results of this research need to be considered together with other field research based information as was done for the development of fertilizer use decision tools Maman et al, 2017c;Ouattara et al, 2017). The decision tools are commonly used on behalf of financially constrained farmers and need to optimize fertilizer use choices for profit maximization.…”

Section: Discussionmentioning

confidence: 99%

Cowpea response to nutrient application in Burkina Faso and Niger

Sermé¹,

Maman²,

Garba³

et al. 2018

Afr. J. Agric. Res.

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Cowpea (Vigna unguiculata (L.) Walp) is important in semi-arid West Africa. Yields are low due to inadequate water and nutrient availability and other constraints. Grain and fodder yield responses to nutrient application were determined from 21 site-years of research conducted in the Sahel and Sudan Savanna. The incomplete factorial treatment arrangement varied by country but included: Four levels each of P and K in 7.5 and 10.0 kg ha -1 increments, respectively; Mg-S-Zn-B package (Mg-S-Zn-B); and comparable with and without manure treatments. Yield increases due to P application always occurred with curvilinear to plateau or linear responses. The overall mean grain yield increase was 0.35 Mg ha -1and 47% due to application of 22.5 kg ha -1 P. Application of K resulted in a linear negative effect in 2014 and positive effect in 2015 for on-station trials in Niger, but had no effect in Burkina Faso and for onfarm trials in Niger. Yield was not affected by Mg-S-Zn-B in Burkina Faso but was increased by a mean of 0.085 Mg ha -1 in Niger. Manure application resulted in a mean yield increase of 0.1 Mg ha -1 in Niger but only with fertilizer P applied, and had no effect in Burkina Faso. Cowpea grain and fodder yields were responsive to fertilizer P up to 22.5 kg ha -1 but little affected by other applied nutrients.

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“…The Central-Northern region located in the South-Sahelian zone is characterized by annual rainfall between 500mm to 700mm and mostly sandy clay soil texture. The Central-Eastern region, located into the North-Sudanian agro-ecological zone has an annual rainfall range of 700 to 900 mm while the Central-Western region which belongs to the South-Soudanian agro-ecological zone has annual rainfall varying from 900mm to 1100 mm (15,16).…”

Section: Methodsmentioning

confidence: 99%

Participatory analysis of groundnut (Arachis hypogaea L) cropping system and production constraints in Burkina Faso

Boubacar

Desmae²,

Miningou³

et al. 2020

Preprint

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Background: Groundnut (Arachis hypogaea L) is one of the major legume crop grown as food and cash crops across the agro ecological zone in Burkina Faso. It is ranked 2nd legume crop in the country, in term of importance, for household food, nutrition and income generation for both rural and urban zone, contributing significantly to food supply and the country economy. However, groundnut was downgrade long ago, forsaken and the groundnut sector is still struggling, with a low productivity, disorganized groundnut sector and a weak breeding program, due to several constraints. Assessing and describing the present groundnut cropping system and production constraint will eventually serve as a basis to guide efficiently the groundnut breeding activities. Methods: A Participatory Rural Appraisal (PRA) study was conducted in three groundnuts production areas (Central-Eastern, Central-Northern and Central- Western). A total of 124 farmers were involved in the study to collect data on socio-demographics, farming system, cropping practices and identified production constraints. Analysis was carried out for qualitative and quantitates variables using STATA 14. Mean variance were determined across regions and gender, and pairwise ranking were used to assess the level of agreement for variables ranking among the three regions using Kendall's W. Pearson's correlation was carried out to assess the relationship between variables. Results: The study revealed a cropping system of groundnut in an environment largely affected by climate change, and in a subsistence and extensive agriculture. There is a variance in groundnut cropping system across the regions with similarities in the cropping practices. Gender plays a key role in the production of the groundnut and 48.39% of women are engaged in groundnut cropping with less access to land and production resources. A yield gap between men and women has been observed denoting a huge inefficiency between men and women. Production constraints, although similar, are perceived and appreciated differently across the region. The lack of improved varieties, Absence of agricultural credit, lack of materials, high price of seeds, high price of fertilizer, drought and disease are some of the important constraints compromising the crop. Conclusion: This study provides a recent view of groundnut cropping, allowing good understanding of farmer’s situation. The result, will contribute to an efficient refining of breeding priorities and guide further activities in groundnut breeding in Burkina Faso.

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Optimizing Fertilizer Use within an Integrated Soil Fertility Management Framework in Burkina Faso

Cited by 10 publications

References 0 publications

Maize response to applied nutrients for West African savannas

Maize response to applied nutrients for West African savannas

Cowpea response to nutrient application in Burkina Faso and Niger

Participatory analysis of groundnut (Arachis hypogaea L) cropping system and production constraints in Burkina Faso

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