Integrated use of fertilizer micro-dosing and Acacia tumida mulching increases millet yield and water use efficiency in Sahelian semi-arid environment

Ibrahim, Ali; Abaidoo, Robert C.; Fatondji, Dougbédji; Opoku, Andrews

doi:10.1007/s10705-015-9752-z

Cited by 27 publications

(19 citation statements)

References 35 publications

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“…The rainfall recorded during the cropping seasons 2005 and 2007 were 433 mm and 430 mm, respectively (Figure 1). These quantities of rainfall were below the long-term rainfall average (560 mm) recorded in the study area (Ibrahim et al, 2015a). Even though, the cumulative rainfall recorded was almost equal in both years, there were large differences in rainfall distribution between the two rainy seasons.…”

Section: Rainfall Distributioncontrasting

confidence: 63%

Yields and forage nutritive quality of high-yielding dual purpose cowpea (Vigna unguiculata L. Walp.) varieties in the Sahelian low-input cropping system

Ibrahim¹,

Pasternak,²

2017

Afr. J. Agric. Res.

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Cowpea is a major food legume crop in the Sahel with tolerance to drought and to the nutrients-leached acid sandy soils of this region. However, the existing cowpea varieties grown by farmers are low yielding and pest sensitive which make them unsuitable to satisfy farmer's needs. The objective of this study was to identify high-yielding cowpea varieties which are well adapted to the Sahelian ecosystem. . In the dry year (2007), the highest grain yield was recorded with ISV 128. There were also significant differences in forage yield between varieties in both the wet and dry year. Application of insecticide increased cowpea grain yields significantly. Cowpea produced without insect control (spray) resulted in high grain yields losses and increased cowpea fodder yields in both years. KVX 745-11-P was the most sensitive variety to insects whereas IT98D 1399 seemed to be relatively the most insect tolerant variety. There were no significant differences between varieties in most forage quality parameters. These results provide the possibility of a potential extension of dual-cowpea varieties for improved food security in the Sahel.

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Section: Rainfall Distributioncontrasting

confidence: 63%

Yields and forage nutritive quality of high-yielding dual purpose cowpea (Vigna unguiculata L. Walp.) varieties in the Sahelian low-input cropping system

Ibrahim¹,

Pasternak,²

2017

Afr. J. Agric. Res.

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“…The problem is acute for poor farmers in semi-arid Sub-Saharan Africa countries [151,156,157]. The precision-farming technique referred to as "microdosing" has been developed by experts [158][159][160]. It "involves the application of small quantities of fertilizer with the seed at the time of planting or as top dressing three to four weeks after emergence" [161].…”

Section: Micro-fertilizationmentioning

confidence: 99%

Crop Upgrading Strategies and Modelling for Rainfed Cereals in a Semi-Arid Climate—A Review

Silungwe

Graef

Bellingrath-Kimura

et al. 2018

Water

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Spatiotemporal rainfall variability and low soil fertility are the primary crop production challenges facing poor farmers in semi-arid environments. However, there are few solutions for addressing these challenges. The literature provides several crop upgrading strategies (UPS) for improving crop yields, and biophysical models are used to simulate these strategies. However, the suitability of UPS is limited by systemization of their areas of application and the need to cope with the challenges faced by poor farmers. In this study, we reviewed 187 papers from peer-reviewed journals, conferences and reports that discuss UPS suitable for cereals and biophysical models used to assist in the selection of UPS in semi-arid areas. We found that four UPS were the most suitable, namely tied ridges, microdose fertilization, varying sowing dates, and field scattering. The DSSAT, APSIM and AquaCrop models adequately simulate these UPS. This work provides a systemization of crop UPS and models in semi-arid areas that can be applied by scientists and planners.

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“…However, the use of inputs particularly synthetic fertilizer on cowpea remains generally limited and unattractive because of their high cost (Abdoulaye and Sanders, 2005;Chianu et al, 2011). On the other hand, the effectiveness of combined use of synthetic and organic amendments for improving crop yields and maintaining soil fertility has been well documented (Bationo and Waswa, 2011;Ibrahim et al, 2015;Yamoah et al, 2002). The availability of the resources for achieving these positive effects remains a major challenge, especially in the Sahelian countries.…”

Section: Introductionmentioning

confidence: 99%

Agronomic and economic benefits of integrated nutrient management options for cowpea production

Issoufa

Ibrahim²,

Abaidoo

2020

Ex. Agric.

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The limitation of soil amendments and insufficient and irregular rainfall are the main factors accounting for the decline in crop yields in the Sahelian low-input cropping systems. This study explored the agronomic and economic responses of integrated use of millet glume-derived compost with synthetic fertilizer in cowpea-based cropping system. A two-year field experiment was laid out as factorial design arranged in randomized complete blocks with three rates of compost (0, 4000, and 8000 kg ha−1) and three rates of recommended synthetic fertilizer (0, 50, and 100%). Cowpea grain yield increased markedly with combined application of compost and synthetic fertilizer. The combined use of compost applied at 8000 kg ha−1 and 50% of the recommended rate of synthetic fertilizer increased cowpea grain yield by 51% compared to the application of 100% of the recommended rate of synthetic fertilizer. The rainwater use efficiency (RaUE) increased by 52 and 49% with the combined application of compost at 8000 kg ha−1 along with 50% of the recommended rate of synthetic fertilizer when compared to the application of 100% of the recommended rate of synthetic fertilizer in 2013 and 2014, respectively. All treatments induced a positive net income, and the highest value/cost ratio was achieved with combined application of compost and synthetic fertilizer. This study highlights the possibility of improving cowpea productivity through combined use of composted locally available organic input with half of the recommended rate of synthetic fertilizer. This combination would reduce the investment in mineral fertilizer currently made by smallholder farmers in the Sahelian low-input cowpea cropping system and reduce environmental pollution resulting from the current practice of burning the millet glume.

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Integrated use of fertilizer micro-dosing and Acacia tumida mulching increases millet yield and water use efficiency in Sahelian semi-arid environment

Cited by 27 publications

References 35 publications

Yields and forage nutritive quality of high-yielding dual purpose cowpea (Vigna unguiculata L. Walp.) varieties in the Sahelian low-input cropping system

Yields and forage nutritive quality of high-yielding dual purpose cowpea (Vigna unguiculata L. Walp.) varieties in the Sahelian low-input cropping system

Crop Upgrading Strategies and Modelling for Rainfed Cereals in a Semi-Arid Climate—A Review

Agronomic and economic benefits of integrated nutrient management options for cowpea production

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