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Sanginga, N.; Lyasse, Omar; Singh, B.B.

doi:10.1023/a:1004785720047

Cited by 120 publications

(31 citation statements)

References 8 publications

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“…Fashola 2 and NIFOR 2 soils had moderate P levels (Cottenie, 1980;FFDA, 2012). The high maize shoot dry matter from soils with no SSP addition for Fashola 2 confirms previous observation of a lack of P response in Fashola soils by Sanginga et al (1995) and Sanginga et al (2000). Higher maize shoot dry matter from soils with zero SSP application compared with lower maize shoot dry matters from soils where SSP was applied was also observed at Epe soil with predominant sand texture in the second cropping (Brady & Weil, 2008).…”

Section: Discussionsupporting

confidence: 85%

Responsiveness of Soil Series in Southwestern Nigeria to Single Super Phosphate Fertilization

Anetor¹,

Omueti²,

Oluwasemire³

2014

JAS

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Application of Single Super Phosphate (SSP) fertilizer in soils with inadequate phosphorus (P) should elicit crop response. However, there is an indication of inconsistent response behaviour to SSP fertilizer in some Nigeria soils despite their low available P. This study identified major soil types in Southwestern Nigeria that are unresponsive to P fertilizer application under screenhouse condition and soil properties that are related to this unresponsive behaviour were determined. Soils from twenty locations in Southwestern Nigeria were selected to evaluate their response to four phosphorus fertilizer rates with a control replicated three times in a factorial arrangement laid out in randomized complete block design. Results indicated that most of the locations responded to initial P application except for Fashola 2 which produced significantly higher maize shoot yield in control soils. There were five other locations where no-response was observed. Multiple regression analysis showed that phosphorus sorption index was related to sand, organic matter and clay. Phosphorus accumulation in soil P reserves may explain the behaviour of the P-unresponsive soils irrespective of their available P levels.

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Section: Discussionsupporting

confidence: 85%

Responsiveness of Soil Series in Southwestern Nigeria to Single Super Phosphate Fertilization

Anetor¹,

Omueti²,

Oluwasemire³

2014

JAS

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“…The grain crop is used and grown predominately in Sub-Saharan Africa because it produces seed with high protein content (20% to 25%) as well as considered as nutritional supplement to cereals for human consumption which is more economical than animal protein for smallholder farmers and rural dwellers (Singh et al 2003 ). The crop also plays an important role in biological nitrogen fixation, by fixing considerable amounts of nitrogen (N) biologically in the range of 3-254 kg Nha -1 per year (Sanginga et al, 2000) with subsequent residual effect of nitrogen on succeeding crops.…”

Section: Introductionmentioning

confidence: 99%

“…One of the constraints to high productivity of cowpea is poor soil fertility, notably the low level of available phosphorus (P) such that cowpea responses to P fertilizer are widespread (Sanginga et al, 2000). Phosphorus deficiency is usually the most determining factor for poor yield of legume crops on most of the tropical soils because apart from playing an essential role in root development, phosphorus is needed for growth of rhizobium bacteria responsible for nitrogen fixation.…”

Section: Introductionmentioning

confidence: 99%

Growth and yield responses of cowpea genotypes to soluble and rock P fertilizers on acid, highly weathered soil from humid tropical West Africa

Adusei¹,

Gaiser²,

Boukar³

et al. 2017

Int. J. Bio. Chem. Sci

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Soils in tropical regions have inadequate levels of phosphorus and this apparently leads to reduced cowpea yield in Africa. Identifying phosphorus-efficient cultivars have the potential to reduce the demand for phosphorus fertilizer and increase the productivity of cowpea. This study was conducted to identify cowpea genotypes that maintain high yields under low soil phosphorus condition. A green-house experiment was conducted at the International Institute of Tropical Agriculture, Ibadan, Nigeria. Fifteen cowpea genotypes were used with two sources of phosphorus fertilisers: rock phosphate (60, 90 and 120 mg P kg −1 soil) and mono potassium phosphate (30, 60 and 90 mg P kg −1 soil) and compared to the control. The experiment was laid out in a strip plot arrangement with three replications. The findings suggested that large geneticvariability exist among the tested cowpea genotypes. IT90K-59 was identified as best phosphorus responder genotype for biomass production and IT90K-76 for grain yield at a rate of 60 mg P kg −1 soil as mono potassium phosphate .Danila and IT89KD-288 were identified as promising genotypes under no or minimal external P application. Five genotypes were identified as good responders to rock phosphate based on their grain yield production. The differential response of the genotypes to low soil phosphorus implies that these traits warrant effective selection for further improvement. Thus, identifying genotypes that can grow well in low phosphorus condition has the potential to reduce the quantity of mineral fertilizersand cost of production.

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“…Thus, it is required a minimum chemical fertilizer in association with organic matter for well amendment of agricultural soil. Minimum N and P were also required for cowpea growing and biological N2 fixation in soil [2,24] in order to improve yield and biological amendment of soil. Therefore, the use of cowpea as preceding crop to rice without fertilizer on a poor soil in N and P could not affect significantly nutrients balance in a positive way as observed in the soil of actual study.…”

Section: Discussion Cropping System Effects In the Soilmentioning

confidence: 99%

Bush Fallow and Cowpea Crop Use as Precedent and Organic Sources of Nutrients for Rice Cultivation on Acidic Plinthosol of Central Benin in West Africa

ASSIGBE¹,

Koné²,

JP³

et al. 2012

Int J of Agri Scie

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Abstract-Tropical soils have low fertility and chemical fertilizers are not affordable for most of the farmers, especially in West Africa. The development of low cost technologies for amending agricultural soils in this environment is needed. Biological and organic fertilizers were tested in 20 farmers' fields in central Benin for rainfed rice production on acidic plinthosol under monomodal rainfall pattern conditions. Short time matured cowpea and native grass fallow were preceding NERICA1 and Ina Okpè rice cultivars that are interspecific (Oryza glaberrima × Oryza sativa) and local varieties respectively. Cowpea and bush residues were incorporated into soil before rice seeding. Soil nutrients (C,N,K, Ca and Zn) contents were significantly depleted whereas null balance was observed for soil available-P content. An increased of soil content in Fe (>130 mg kg -1 ) was significantly observed in all the treatments. Highest yield of 1.6 t ha -1 was recorded in the treatment composed of cowpea and NERICA1. The study technology was deemed suitable in deficient-P acid soil whereas the land foot slope position was excluded to avoid potential increasing of Fe content (iron toxicity of rice) in soil of the subsequent lowland. Minimum chemical fertilizer was required for improving rainfed rice cultivation on plinthosol in monomodal rainfall pattern ecology.

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Untitled

Cited by 120 publications

References 8 publications

Responsiveness of Soil Series in Southwestern Nigeria to Single Super Phosphate Fertilization

Responsiveness of Soil Series in Southwestern Nigeria to Single Super Phosphate Fertilization

Growth and yield responses of cowpea genotypes to soluble and rock P fertilizers on acid, highly weathered soil from humid tropical West Africa

Bush Fallow and Cowpea Crop Use as Precedent and Organic Sources of Nutrients for Rice Cultivation on Acidic Plinthosol of Central Benin in West Africa

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