Plant nutrient contents of cattle manures from small-scale farms and experimental stations in the Ethiopian highlands

Lupwayi, Newton Z.; Girma, Mekete; Haque, I.

doi:10.1016/s0167-8809(99)00113-9

Cited by 60 publications

(47 citation statements)

References 12 publications

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“…This is most likely due to the supply of Zn in manure applied to the homefield in the past. Due to its relatively high Zn concentration (Lupwayi et al 2000) manure has been shown to supply significant amounts of Zn to crops (Prasad and Sinha 1982).…”

Section: Discussionmentioning

confidence: 99%

Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe

Masvaya

Nyamangara

Nyawasha

et al. 2009

Nutr Cycl Agroecosyst

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Variability of soil fertility within, and across farms, poses a major challenge for increasing crop productivity in smallholder systems of subSaharan Africa. This study assessed the effect of farmers' resource endowment and nutrient management strategies on variability in soil fertility and plant nutrient uptake between different fields in Gokwe South (ave. rainfall *650 mm year -1 ; 16.3 persons km -2 ) and Murewa (ave. rainfall *850 mm year -1 ; 44.1 persons km -2 ) districts, Zimbabwe. In Murewa, resource-endowed farmers applied manure ([3.5 t ha -1 year -1 ) on fields closest to their homesteads (homefields) and none to fields further away (outfields). In Gokwe the manure was not targeted to any particular field, and farmers quickly abandoned outfields and opened up new fields further way from the homestead once fertility had declined, but homefields were continually cultivated. Soil available P was higher in homefields (8-13 mg kg -1 ) of resource-endowed farmers than on outfields and all fields on resource constrained farms (2-6 mg kg -1 ) in Murewa. Soil fertility decreased with increasing distance from the homestead in Murewa while the reverse trend occurred in Gokwe South, indicating the impact of different soil fertility management strategies on spatial soil fertility gradients. In both districts, maize showed deficiency of N and P, implying that these were the most limiting nutrients. It was concluded that besides farmers' access to resources, the direction of soil fertility gradients also depends on agro-ecological conditions which influence resource management strategies.

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Section: Discussionmentioning

confidence: 99%

Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe

Masvaya

Nyamangara

Nyawasha

et al. 2009

Nutr Cycl Agroecosyst

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“…Livestock convert vegetative plant material and residues to dung, as manure a valuable resource to maintain fertility of pasture and especially of cropland (Harris, 2002). However, the use as fertilizer often competes with the use of dung as fuel for fire as the availability of firewood is often limited (Lupwayi et al, 2000). In Sub-Saharan Africa, artificial fertilizer is not affordable for most small-scale farmers and manure is a key resource for maintaining nutrient balances in the soil of cropping areas (Lupwayi et al, 2000).…”

Section: Animal Feedmentioning

confidence: 99%

“…However, the use as fertilizer often competes with the use of dung as fuel for fire as the availability of firewood is often limited (Lupwayi et al, 2000). In Sub-Saharan Africa, artificial fertilizer is not affordable for most small-scale farmers and manure is a key resource for maintaining nutrient balances in the soil of cropping areas (Lupwayi et al, 2000). In some cases, pastoralists collaborate with crop farmers in Sub-Saharan Africa such that animals can feed on the crop residues while crop farmers benefit from the recycled nutrients given back to the soil via animal manure (Seré et al, 1995).…”

Section: Animal Feedmentioning

confidence: 99%

Crop-Livestock Farming Systems Varying with Different Altitudes in Southern Ethiopia

Österle¹,

Angassa²,

Tadesse³

et al. 2013

Sci. Technol. Arts Res. J.

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Article InformationIn Sub-Saharan Africa, rangeland is increasingly converted to cropland, creating diverse crop-livestock practices in different environments. As these practices lead to highly adapted livestock production systems using resources that vary locally and seasonally, not much is known about their similarities and differences. We assessed different crop-livestock systems through 60 semistructured interviews in lowlands (<1700 m.a.s.l), mid-altitude ranges (~2000 masl), and highlands (>2400 m.a.s.l) around the Rift Valley, Ethiopia. Average livestock numbers per household were higher in lowlands (43) and highlands (18), where access to communal grazing lands was possible. Cattle dominated at all sites, draught oxen numbers increased with available cropping land per household. All sites used crop residues as supplemental feed. Dung was used as manure in most households, as fuel is used only in higher regions. Our study showed that crop-livestock practices and livestock numbers can be explained by altitude but also by the availability of private and communally used land. Further practices should include growing fodder legumes, crop rotations, and intercropping, which might support a reduced-tillage system and reduce numbers of environmentally costly draught oxen.

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“…Animal manures and composts have shown in several trials to increase nutrient availability and to partly substitute mineral fertilizers (Goyal et al 1999). However, availability of manure in smallholder farms was generally lower in Ethiopia (Lupwayi et al 2000). In this region, some crop by-products such as Khat leftover are available for use as soil amendments because of fewer alternate uses.…”

Section: Introductionmentioning

confidence: 99%

Organic and inorganic fertilizer application enhances the effect of Bradyrhizobium on nodulation and yield of peanut (Arachis hypogea L.) in nutrient depleted and sandy soils of Ethiopia

Argaw

2017

Int J Recycl Org Waste Agricult

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Purpose An investigation was carried out to evaluate the effect of the integrated application of organic and inorganic fertilizer effect on Bradyrhizobium effectiveness on nodulation and yield of peanut at the major growing areas of Eastern Ethiopia, Babillae and Fedis sites. Methods Systemic combination of compost, manure, Bradyrhizobium inoculation and NP application was laid out in Randomized Complete Block Design with three replications. Results The result showed that Bradyrhizobium integrated with organic inputs significantly improved the nodule number at Babillae while Bradyrhizobium when applied with DAP resulted in a significant increase of nodulation at Fedis site. The highest total biomass and total pods weight at both sites were found to record when Bradyrhizobium integrated with manure and compost. Integration of Bradyrhizobium, manure and compost at Fedis and Bradyrhizobium with manure at Babillae was found to increase the kernel yield by 44 and 66.6% over the control check, respectively. Integration of Bradyrhizobium, manure and compost at Babillae and Bradyrhizobium with starter N at Fedis significantly increased plant N accumulation. The effect of organic and inorganic application on soil N and organic carbon content was not significant at Fedis, but the slight increase was observed in Babillae site. A significant increase in the soil available P by organic and/or DAP application was found in either of the experimental sites. Conclusion Organic fertilizer when integrated with Starter N and DAP is better in improving the effectiveness of Bradyrhizobium, nodulation and yield of peanut in either of the sites.

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Plant nutrient contents of cattle manures from small-scale farms and experimental stations in the Ethiopian highlands

Cited by 60 publications

References 12 publications

Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe

Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe

Crop-Livestock Farming Systems Varying with Different Altitudes in Southern Ethiopia

Organic and inorganic fertilizer application enhances the effect of Bradyrhizobium on nodulation and yield of peanut (Arachis hypogea L.) in nutrient depleted and sandy soils of Ethiopia

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