Microbial Respiration and Nitrogen and Phosphorus Mineralization in Cow Dung–Amended Soils Depending on Moisture Contents: a Microcosm Study

2021 ◽  
Author(s):  
Justina Awele Odogwu ◽  
Cornelius Talade Atere ◽  
Akin Olayinka ◽  
Mary Oluwatosin Adegbite
Keyword(s):  
Microbial Respiration ◽  
Cow Dung ◽  
Nitrogen And Phosphorus ◽  
Amended Soils ◽  
Moisture Contents ◽  
Microcosm Study ◽  
Phosphorus Mineralization

Spatial variability of the functional stability of microbial respiration process: a microcosm study using tropical forest soil

2012 ◽  
Vol 12 (7) ◽  
pp. 1030-1039 ◽  
Author(s):  
Nathalie Fromin ◽  
Benjamin Porte ◽  
Robert Lensi ◽  
Jérôme Hamelin ◽  
Anne-Marie Domenach ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Tropical Forest ◽  
Forest Soil ◽  
Microbial Respiration ◽  
Functional Stability ◽  
Microcosm Study ◽  
Tropical Forest Soil

Carbon, nitrogen and phosphorus mineralization of tree leaves and manure

2000 ◽  
Vol 30 (4) ◽  
pp. 298-305 ◽  
Author(s):  
P. L. Mafongoya ◽  
P. Barak ◽  
J. D. Reed
Keyword(s):  
Tree Leaves ◽  
Nitrogen And Phosphorus ◽  
Phosphorus Mineralization

Effluent polishing via pasture irrigation in Harare, Zimbabwe

2002 ◽  
Vol 46 (9) ◽  
pp. 287-295 ◽  
Author(s):  
I. Nhapi ◽  
M. Mawere ◽  
S. Veenstra ◽  
H.J. Gijzen
Keyword(s):  
Current System ◽  
Sewage Treatment ◽  
Substantial Improvement ◽  
Additional Treatment ◽  
Capital City ◽  
Cow Dung ◽  
Nitrogen And Phosphorus ◽  
Pasture Management ◽  
Pasture Grass ◽  
Supply Source

Harare, the capital city of Zimbabwe, is experiencing eutrophication-related problems in its downstream potable water supply source of Lake Chivero. This is due mainly to poorly treated sewage effluent encroachment into upstream rivers, especially Marimba River. Crowborough Pasture Irrigation farm is in the Marimba sub-catchment area and has 305 hectares of irrigated pastures. Studies started from July 2000 to August 2001 focusing on the pasture's management of nutrients (nitrogen and phosphorus) and their impact on Marimba River. Water and nutrient balances were developed. Reduction efficiencies for this pasture were found to be 84% for TN and 54% for TP. Both the Crowborough sewage treatment works and the pastures are overloaded. It was therefore concluded that the current system is no longer sustainable economically and environmentally. From the results of our study we recommend that additional treatment units be constructed at Crowborough sewage treatment works to meet current flows. Moreover, pasture management needs substantial improvement. Nutrient recovery should be enhanced by regular harvesting of pasture grass and converting cow dung into an economic commodity as manure for neighbouring residents. Maize cultivation is also recommended to replace pasture grass as it is a local staple crop and has high nutrient uptake rates.

scholarly journals Nitrogen and Phosphorus Loss Potential from Biosolids-Amended Soils and Biotic Response in the Receiving Water

2015 ◽  
Vol 44 (4) ◽  
pp. 1293-1303 ◽  
Author(s):  
Aslam Hanief ◽  
Denis Matiichine ◽  
Andrew E. Laursen ◽  
I. Vadim Bostan ◽  
Lynda H. McCarthy
Keyword(s):  
Nitrogen And Phosphorus ◽  
Phosphorus Loss ◽  
Amended Soils ◽  
Biotic Response ◽  
Receiving Water
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