Yield, nodulation, and N2 fixation by cowpea cultivars at different phosphorus levels

Ankomah, A. B.; Zapata, Felipe; Hardarson, G.; Danso, S. K. A.

doi:10.1007/s003740050069

Cited by 8 publications

(8 citation statements)

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“…This result supports suggestions made by Ankomah et al (1996) and Sanginga et al (1996) that the effect of P on N 2 fixation of rootnodulating legume species was mainly in the total amount of N fixed rather than on the percent of N derived from the atmosphere (%N dfa ) per se. On the other hand, total N accumulation of C. micans was enhanced as a result of improved biomass yield as P was added.…”

Section: Discussionsupporting

confidence: 81%

Rock phosphate-P enhances biomass and nitrogen accumulation by legumes in upland crop production systems in humid West Africa

2006

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Experiments were conducted during 1996-1998 in screen house and in the field in the humid forest zone of Côte d'Ivoire, to evaluate the effects of phosphorus (P) from phosphate rock (PR) on the performance of the root nodulating legume Crotalaria micans grown for 8 weeks. The experimental soils were acid Ultisols with <4 mg/kg extractable Bray-1 P. Tilemsi PR from Mali and triple superphosphate (TSP) were applied at 60 kg P ha −1 (screen house) and 90 kg P ha −1 (field) to the legume. Legume N-fixed (BNF) was estimated by the 15 N-isotope dilution and δ 15 N natural abundance methods, using Cassia obtusifolia L. as a non-fixing legume reference plant. Without P supply, and under the field conditions, C. micans produced less than 1 tonne of biomass and accumulated 29 kg N/ha. The application of PR-P enhanced legume N by about fourfold over the unfertilised control. There was no significant difference between the effects of TSP and PR. Phosphorus application mainly affected the total amount of N accumulated rather than the percentage derived from the atmosphere (%N dfa) per se. Furthermore, the cumulative effects of PR-P on the performance of C. micans greatly improved with time in the screen house. This study confirms that Tilemsi PR is an agronomically effective source of P for short-duration legume green manure (GM) even in the first year of its application to acid P-deficient soils in the West African humid zone.

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Section: Discussionsupporting

confidence: 81%

Rock phosphate-P enhances biomass and nitrogen accumulation by legumes in upland crop production systems in humid West Africa

2006

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“…This indicates that among varieties, Asomdwee and IT89KD-347-57 produced more dry matter per unit ground area than Asetenapa in the major season. This variation could be due to genotypic make-up and growing conditions indicating different growth potential (Ankomah et al, 1996). The reduction in CGR between sampling periods contrasts the report of Cobbinah et al (2011) that UCC-Early variety of cowpea increased from the initial sampling (30 DAP) stage to the final sampling stage (51 DAP).…”

Section: Crop Growth Ratecontrasting

confidence: 63%

Growth, Nodulation and Yield Response of Cowpea to Phosphorus Fertilizer Application in Ghana

Karikari¹,

Arkorful²,

Addy³

2015

J. of Agronomy

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A B S T R A C TPhosphorus is a major limiting nutrient in soils in Ghana. Selection of cowpea varieties that produce good seed yield under low soil phosphorus or those with high phosphorus response efficiency can be a low input approach in solving this problem in Ghana. Two seasons experiments were conducted to evaluate influence of phosphorus (P) fertilizer on growth, nodulation and yield in cowpea. The experiment comprised 12 treatment combinations of 3 cowpea varieties and 4 levels of triple super phosphate (46% P 2 O 5 ) laid out as a factorial in RCBD with four replications. The cowpea varieties were Asetenapa (IT81D-1951), Asomdwee (IT94K-410-2) and IT89KD-347-57 and levels of P were 0, 20, 40 and 60 kg haG 1 P 2 O 5 . In the present study, Asomdwee and IT89KD-347-57 recorded the highest and lowest crop growth of 7.88 and 2.02 g mG 2 dayG 1 at 45 and 60 days after planting, respectively. Growth rate was not consistent with P application; however, application rate of 60 kg haG 1 P 2 O 5 yielded the least growth rate in the entire study period except for 60 days after planting in the minor season. Statistically, Asetenapa and Asomdwee recorded similar number, effectiveness and dry weight of nodules and were significantly different from that of IT89KD-347-57 in both seasons. Number, effectiveness and dry weight of nodules in all varieties were directly proportional to rates of P fertilizer application in both seasons. Asomdwee produced the highest seed yield of 1557.00 and 1415.00 kg haG 1 for major and minor seasons, respectively. The rate of P fertilizer application was directly proportional to the seed yield in all three cowpea varieties. The highest seed yield of 1682.00 and 1476.00 kg haG 1 for major and minor seasons, respectively was produced at 60 kg haG 1 P 2 O 5 application. Farmers are, therefore, encouraged to use P fertilizer in cowpea production in Ghana.

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“…Peoples et al (2001) highlighted that 20-25 kg of shoot N has been fixed for every tone of legume shoot dry weight accumulated. Ankomah et al (1996) found out that the good correlation between shoot N concentration and N 2 fixation. In addition, the variation of N accumulation might also be related with inherent property of the tested peanut cultivars as has been reported by Nambiar and Dart (1980).…”

Section: Discussionmentioning

confidence: 93%

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

Argaw

2017

Environ Syst Res

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Background: Bacterial bioinoculate is one of environmentally friendly input for crop production. Several works revealed that effectiveness of Rhizobium bioinoculant have been affected by the native rhizobia population. Hence, this study was initiated to evaluate the effect of selected Bradyrhizobium in nodulating peanut in the major growing areas of Ethiopia. Methods:The effect of eight effective Bradyrhziobium vis-a-vis 20 kg N ha −1 and the control check on the nodulation and yield of two peanut cultivars (Sedi and Werer 942) at Babile and Fedis, eastern Ethiopia, during 2013 cropping season was evaluated. Results:The results showed that the inoculation, location and cultivar and their two and three ways interaction had a significant influence on the nodulation and grain yield. Inoculation of Bradyrhizobium increased the nodule number, nodule dry weight, number of seeds per plants, total pods weight, hundred seeds weight, total biomass yield, grain yield and shelling % up to 37, 24.9, 22.4, 22.5, 5.5, 26.2, 35.8 and 24.1%, respectively. Isolate HUGNR-29 was found to be more effective as it scored the highest nodule dry weight and grain yield. Application of inorganic N increased the yield and yield components of peanut in either of locations. Though the statistically better effective nodule % was recorded at Babile, significantly higher nodule number, nodule dry weight, and total N accumulation were obtained from Fedis than Babile site. Significantly higher total pods weight, hundred seeds weight, total biomass weight, grain yield and total plant N accumulation was recorded with the cultivar werer-962 than those produced with Bati-Sedi. Conclusions:The result showed that Bradyrhizobium inoculation is essential to improve the peanut production through environmentally and economically sustainable ways though the soil native rhizobia nodulating peanut was high. Peanut cultivar and study site based rhizobia inoculant development is also important.

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Yield, nodulation, and N2 fixation by cowpea cultivars at different phosphorus levels

Cited by 8 publications

References 0 publications

Rock phosphate-P enhances biomass and nitrogen accumulation by legumes in upland crop production systems in humid West Africa

Rock phosphate-P enhances biomass and nitrogen accumulation by legumes in upland crop production systems in humid West Africa

Growth, Nodulation and Yield Response of Cowpea to Phosphorus Fertilizer Application in Ghana

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

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