African map showing the investigated countries and cities under wastewater irrigation.

African map showing the investigated countries and cities under wastewater irrigation. Burkina Faso (1: Ouagadougou); Cameroon (2: Ngaoundere; and 3: Yaounde

Figure 1. African map showing the investigated countries and cities. 1: Ouagadougou; 2: Ngaoundere; and 3:

African countries and cities investigated in the study: High-throughput sequencing data and antibiotic resistance mechanisms of soil microbial communities in non-irrigated and irrigated soils with raw sewage in African citie

Figure 1. African map showing the investigated countries and cities. 1: Ouagadougou; 2: Ngaoundere; and 3: Yaounde;Table 1. DNA sequence read metrics of the six metagenomic samples

African map showing the investigated countries and cities, and the DNA sequence read metrics of the six metagenomic samples from soil from irrigated fields (IRI) and non-irrigated fields (NIR) based on MG-RAST annotation

Figure 1. African map showing the investigated countries and cities. 1: Ouagadougou; 2: Ngaoundere; and 3: Yaounde;Table 1. DNA sequence read metrics of the six metagenomic samples

African map showing the investigated countries and cities, and the DNA sequence read metrics of the six metagenomic samples from soil from irrigated fields (IRI) and non-irrigated fields (NIR) based on MG-RAST annotation

Figure 1. African map showing the investigated countries and cities. 1: Ouagadougou; 2: Ngaoundere; and 3:

African countries and cities investigated in the study: High-throughput sequencing data and antibiotic resistance mechanisms of soil microbial communities in non-irrigated and irrigated soils with raw sewage in African citie

African map showing the investigated countries and cities under wastewater irrigation.

African map showing the investigated countries and cities under wastewater irrigation. Burkina Faso (1: Ouagadougou); Cameroon (2: Ngaoundere; and 3: Yaounde

Table 1. DNA sequence read metrics of the six metagenomic samples

DNA sequence read metrics of the six metagenomic samples from soil from irrigated fields (IRI) and non-irrigated fields (NIR) based on MG-RAST annotation

Potential of Cattle Manure Ash to Improve Soil Fertility and Groundnut (Arachis hypogea L.) Growth in the Adamawa Region (Cameroon)

Groundnut (Arachis hypogea L.) production is a key farming activity in Cameroon, since it substantially contributes to human nutrition, economic wealth of farmers and soil fertility. Most cropping systems in sub Saharan Africa are limited by low soil fertility and subjected to the slash-and-burn agriculture. A study was conducted to investigate the potential of cattle manure ash, derived from cooking activities as soil conditioner in order to improve soil fertility and groundnut performances in two sites in the Adamawa region (Cameroon). The results showed that cattle manure ash slightly increased soil pH, soil moisture, SOM, Corg and C/N ratio in amended plots. Cattle manure ash improved nodule weight and increased arbuscular mycorrhizal fungi colonization in one site, that was translated to better N assimilation, and dry weight of both groundnut varieties used in the study. Future studies are needed to evaluate the full potential of cattle manure ash application, alone and/or associated with others organic wastes for sustainable agriculture in the tropics