Raising Crop Productivity in Africa through Intensification

Tadele, Zerihun

doi:10.3390/agronomy7010022

Cited by 133 publications

(103 citation statements)

References 125 publications

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“…However, the ideotype approach that has been used in global rice breeding programs rather rely one large panicle size, reduced tillering capacity and improved lodging resistance (Tadele , 2017). In our study, such relationship cannot be obtained.…”

Section: Comparison Of Rotation Effects On Grain Yield Between Guineacontrasting

confidence: 47%

Responses of Upland NERICA Rice to Fertiliser Application and Fallow Management in Different Agro-Ecological Zones of Benin Republic

Worou

Gaiser

Igué³

et al. 2017

ESJ

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Recent findings reported that introduction of legumes as an intercrop or in rotation to minimize external inputs can reverse the declining of soil fertility in upland rice agrosystem and so improve the productive capacity of farms. The objectives of the study were to assess (1) the effects of rotation of upland rice with other crops, of fertiliser application and of rice varieties on rice yield and (2) the interaction effects of rotation, fertiliser application and variety on rice production. An experiment was carried out from 2011 to 2012 in 2 zones in Benin Republic, West Africa. Three rice rotation treatments were established where in the year preceding rice cropping the following pre-crops were grown: (1) natural fallow regrowth (2) sole cowpea crop and (3) cowpea/maize intercrop. The following year, 3 NERICA varieties were cultivated in the three pre-crop treatments with and without fertiliser application. With respect to combined effect of NP mineral fertiliser and rotation, a consistent increase in rice yield over all varieties was only observed with maize-cowpea intercrop preceding rice in the Guinean zone. Improved fallow with cowpea combined with fertiliser was beneficial for NERICA 2 and NERICA 4 in the Sudano -Guinean zone and with NERICA 1 and NERICA 4 in the Guinean zone. Rice in rotation with maize-cowpea intercrop and in combination with NP mineral fertiliser can easily fit into the

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Section: Comparison Of Rotation Effects On Grain Yield Between Guineacontrasting

confidence: 47%

Responses of Upland NERICA Rice to Fertiliser Application and Fallow Management in Different Agro-Ecological Zones of Benin Republic

Worou

Gaiser

Igué³

et al. 2017

ESJ

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“…Traits for greater production integration Breeders' emphasis on yield, along with knowledge of global crop production and consumption trends (described in Section II), supports the view that diversification of the world's crop portfolio requires productivity enhancements in new and orphan crops, to enable them to successfully compete with major crops for farmers' attention (Tadele, 2017). However, diversification is not only about increasing the range of crops grown, but is concerned with developing more efficient, sustainable and stable integrated production systems through approaches such as intercropping (Brooker et al, 2015).…”

Section: Stakeholders' Perspectives On Traits For New and Orphan Cropmentioning

confidence: 88%

The role of genetics in mainstreaming the production of new and orphan crops to diversify food systems and support human nutrition

et al. 2019

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Summary Especially in low‐income nations, new and orphan crops provide important opportunities to improve diet quality and the sustainability of food production, being rich in nutrients, capable of fitting into multiple niches in production systems, and relatively adapted to low‐input conditions. The evolving space for these crops in production systems presents particular genetic improvement requirements that extensive gene pools are able to accommodate. Particular needs for genetic development identified in part with plant breeders relate to three areas of fundamental importance for addressing food production and human demographic trends and associated challenges, namely: facilitating integration into production systems; improving the processability of crop products; and reducing farm labour requirements. Here, we relate diverse involved target genes and crop development techniques. These techniques include transgressive methods that involve defining exemplar crop models for effective new and orphan crop improvement pathways. Research on new and orphan crops not only supports the genetic improvement of these crops, but they serve as important models for understanding crop evolutionary processes more broadly, guiding further major crop evolution. The bridging position of orphan crops between new and major crops provides unique opportunities for investigating genetic approaches for de novo domestications and major crop ‘rewildings’.

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“…Traditional grain legume cultivation (Table ) is predominant across Africa (Figure ); however, substantial variations in production and yield outcomes exist, which reflect productivity ceilings due to soil fertility and moisture (Bill & Melinda Gates Foundation, ; Ortega, Waldman, Richardson, Clay, & Snapp, ; Tadele, ). Chickpeas, groundnuts, and soybeans have yields above 1.0 MT ha −1 , in comparison to common beans and cowpeas that often have yields below 900 kg ha −1 (Figure ).…”

Section: Legume Production In Africamentioning

confidence: 99%

Modelling predicts that soybean is poised to dominate crop production across Africa

Foyer

Siddique

Tai

et al. 2018

Plant Cell & Environment

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The superior agronomic and human nutritional properties of grain legumes (pulses) make them an ideal foundation for future sustainable agriculture. Legume‐based farming is particularly important in Africa, where small‐scale agricultural systems dominate the food production landscape. Legumes provide an inexpensive source of protein and nutrients to African households as well as natural fertilization for the soil. Although the consumption of traditionally grown legumes has started to decline, the production of soybeans (Glycine max Merr.) is spreading fast, especially across southern Africa. Predictions of future land‐use allocation and production show that the soybean is poised to dominate future production across Africa. Land use models project an expansion of harvest area, whereas crop models project possible yield increases. Moreover, a seed change in farming strategy is underway. This is being driven largely by the combined cash crop value of products such as oils and the high nutritional benefits of soybean as an animal feed. Intensification of soybean production has the potential to reduce the dependence of Africa on soybean imports. However, a successful “soybean bonanza” across Africa necessitates an intensive research, development, extension, and policy agenda to ensure that soybean genetic improvements and production technology meet future demands for sustainable production.

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Raising Crop Productivity in Africa through Intensification

Abstract: The population of Africa will double in the next 33 years to reach 2.5 billion by 2050.

Cited by 133 publications

References 125 publications

Responses of Upland NERICA Rice to Fertiliser Application and Fallow Management in Different Agro-Ecological Zones of Benin Republic

Responses of Upland NERICA Rice to Fertiliser Application and Fallow Management in Different Agro-Ecological Zones of Benin Republic

The role of genetics in mainstreaming the production of new and orphan crops to diversify food systems and support human nutrition

Modelling predicts that soybean is poised to dominate crop production across Africa

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