Temporal variability of selected soil microbiological and biochemical indicators under different soil quality conditions in south-western Nigeria

Wick, Barbara; Kühne, Ronald F.; Vielhauer, K.; Vlek, Paul L. G.

doi:10.1007/s00374-002-0455-7

Cited by 43 publications

(35 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The soil microbial biomass C concentrations (Table 3) are in the range of west African soils reported by Wick et al (1998Wick et al ( , 2002, but relatively low in comparison to other subtropical soils with higher organic C and pH (Wichern et al, 2003). This may also, in part, be due to the prolonged storage under dry conditions.…”

Section: Discussionmentioning

confidence: 65%

Legume rotation effects on early growth and rhizosphere microbiology of sorghum in West African soils

Marschner

Joergensen²,

Piepho

et al. 2004

Plant and Soil

View full text Add to dashboard Cite

Cereal yield increases in legume rotations on west African soils were the subject of much recent research aiming at the development of more productive cropping systems for the mainly subsistence-oriented agriculture in this region. However, little has been done to elucidate the possible contribution of soil microbiological factors to these rotation effects. Therefore a pot trial was conducted using legume rotation and continuous cereal soils each from one site in Burkina Faso and two sites in Togo where cropping system experiments had been conducted over 4 yrs. All soils were planted with seedlings of sorghum (Sorghum bicolor L. Moench). From 21 days after sowing onwards relative growth rates in rotation soils were higher than in the continuous cereal soils, resulting in between 69 and 500% higher shoot dry matter of rotation sorghum compared to sorghum growing in continuous cereal soils. Across sites rotation soils were characterized by higher pH, higher microbial N and a lower microbial biomass C/N ratio and, with the exception of one site, a higher fungal biomass in the rhizosphere. The bacterial and eukaryal community structure in the soil, assessed by denaturing gradient gel electrophoresis (DGGE), differed between sites. However, only at one site differed the bacterial and the eukaryal community structure in the rotation soil significantly from that in the continuous cereal soil. Although the results of this study confirmed the marked plantgrowth differences between sub-Saharan legume-rotation soils and their continuous cereal counterparts they also showed the difficulties to differentiate possible microbiological causes from their effects.

show abstract

Section: Discussionmentioning

confidence: 65%

Legume rotation effects on early growth and rhizosphere microbiology of sorghum in West African soils

Marschner

Joergensen²,

Piepho

et al. 2004

Plant and Soil

View full text Add to dashboard Cite

show abstract

“…The fact that the cation exchange capacity favors proton retention in acid soils [39] explains the significant correlation found between pH and SOM content (−0.80, p < 0.01 in the upper layer). The positive correlation between SOM content and BGa (0.82, p < 0.01 in the upper layer) has been described by many authors, and is the result of the participation of β-glucosidase in the mineralization of carbohydrates [40].…”

Section: Tillage and Organic Treatmentsmentioning

confidence: 91%

Influence of Tillage Practices, Organic Manures and Extrinsic Factors on β-Glucosidase Activity: The Final Step of Cellulose Hydrolysis

2018

View full text Add to dashboard Cite

β-glucosidase is a key enzyme in the C-cycle, and its activity is strongly influenced by soil management practices and by extrinsic factors such as weather conditions. However, the variability of β-glucosidase activity (BGa) over time and how this variability is affected by tillage and organic fertilization remain poorly elucidated. We investigated how contrasting tillage practices (zero, minimum, conventional or deep) and organic amendment application (dairy cattle slurry or green compost) govern BGa. Strong correlations (r = −0.98; p < 0.001) were found between BGa and preceding cumulative rainfall for soil without crops. Under cropped soil conditions, BGa was 53% greater under zero and minimum tillage than under ploughed treatments (p < 0.05) six years after their applications. These differences could be explained by associated effects of tillage on organic matter content, electrical conductivity and water stable aggregates. The separated organic residue experiment showed that BGa was 36% greater in soil amended with slurry than in soil amended with compost (p < 0.05) five years after their applications. Finally, the response ratio of BGa was calculated in order to study the effect size of each treatment at each sampling period. This simple strategy mitigated the variation on BGa measurements between two sampling periods, and may be applied in future studies to improve the interpretation of other potential soil quality indicators that are sensitive to seasonal changes.

show abstract

“…Soil chemical, physical, and biological quality indicators vary from season to season (Wick et al, 2002). For example, in both pastures and cropland, inorganic…”

Section: Introductionmentioning

confidence: 99%

Hard Red Winter Wheat Cultivar Responses to a pH and Aluminum Concentration Gradient

et al. 2007

View full text Add to dashboard Cite

Aluminum (Al) toxicity is a major yield‐limiting factor in winter wheat production in many parts of the world. The use of Al‐tolerant cultivars reduces the impact of this problem and is common to the southern Great Plains where wheat is managed as a dual‐purpose crop. However, no quantitative data exist on the Al tolerance ranking of winter wheat cultivars often grown in a dual‐purpose management system. This study was established to classify on a field scale the Al tolerance of common winter wheat cultivars (Ok101, Ok102, 2137, 2174, Jagger, Jagalene, Custer, and AP502CL). Fall forage yield of each cultivar was harvested by hand clipping. Soil samples were collected at the same time and analyzed for pH and Al saturation (Alsat). Grain was hand‐harvested in June of each year from the same rows harvested for forage. Cultivar differences (P < 0.1) were found in forage and grain yields for the Alsat > 30% range. Al tolerance based on grain yield ranked as follows: 2137 > Jagalene = Ok101 > Jagger = 2174 ≥ Ok102 > Custer = AP502CL. Al tolerance based on forage yield ranking was similar to that of grain: 2137 > Ok101 = Jagalene = Jagger > 2174 = Ok102 > Custer = AP502CL. Grain yield seemed to be less affected by Alsat than forage yields. The use of Al‐tolerant winter wheat cultivars may minimize producers' risk of crop loss; therefore, this ranking of Al tolerance should help winter wheat producers make informed decisions if they have acid soils with high Al content and no other remedies available.

show abstract

Temporal variability of selected soil microbiological and biochemical indicators under different soil quality conditions in south-western Nigeria

Cited by 43 publications

References 57 publications

Legume rotation effects on early growth and rhizosphere microbiology of sorghum in West African soils

Legume rotation effects on early growth and rhizosphere microbiology of sorghum in West African soils

Influence of Tillage Practices, Organic Manures and Extrinsic Factors on β-Glucosidase Activity: The Final Step of Cellulose Hydrolysis

Hard Red Winter Wheat Cultivar Responses to a pH and Aluminum Concentration Gradient

Contact Info

Product

Resources

About