Mineralization and Decomposition of Four Types of Compost Based on Biomass of Sida cordifolia L. in a Sandy Soil in the Semi-arid Zone of Niger

The low nutrient availability rainfall patterns regimes are the main constraints to agricultural production in Niger. This was a study of the decomposition and mineralization of nutrients of four types of composts (M1P, M2P, M1H and M2H) in a sandy soil. It was carried out at the experimental N'Dounga station (CERRA Kollo) located about 15 km from Niamey. A randomized blocks design with five repetitions was used. For the evaluation of yield, two doses (1 t ha-1 and 1.5 t ha-1) were applied per millet. Decomposition and mineralization were assessed after burial at 10 cm depth between of a small bag containing 100 g (five small bags / compost). The characterization of the physico-chemical elements of composts samples after incubation has shown that composts are rich in nutrients. Nitrogen ranged from 0.8% to 1.1%, phosphorus from 9.99 mg.kg-1 to 12.76 mg.kg-1 and potassium from 19.94 cmolc dm-3 to 26.26 cmolc dm-3. All four composts are basic (pH> 7). Compost M2H lost more than 80% of its weight during the 10 weeks of the experiment compared to 48% for the M1P. the mineralization of N, P and K is greater at compost M1P (83.6% N, 72.72% P and 89.5% K). This compost also gave the highest yield (1272.5 kg ha-1). The decomposition and mineralization of the main elements (N, P and K) allow the synchronization between the release of nutrients from these composts and the nutrient requirements of millet in a sandy soil.

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Hydro-chemical and microbiological characterization of Lower Cretaceous waters in a semi-arid zone Beni-Ounif syncline, South-West of Algeria

Journal of Water and Land Development ◽

10.2478/jwld-2019-0007 ◽

2019 ◽

Vol 40 (1) ◽

pp. 67-80

Author(s):

Fatima Zahra Merzougui ◽

Ahmed Makhloufi ◽

Touhami Merzougui

Keyword(s):

Water Quality ◽

Chemical Analysis ◽

Lower Cretaceous ◽

Chemical Elements ◽

Arid Zone ◽

Principal Component ◽

Hierarchical Cluster ◽

Microbiological Analysis ◽

Physico Chemical ◽

Sampling Points

Abstract The article analyses the water quality of the Lower Cretaceous aquifer in the Beni-Ounif syncline. To this end, 42 samples were taken for physico-chemical analysis and 28 for microbiological analysis in March, May and October 2017 from 14 sampling points. The results of physico-chemical analysis were processed by multi-variety statistical analysis methods: principal component analysis (PCA) and hierarchical cluster analysis (HCA) coupled to hydro chemical methods: Piper diagram. The PCA allowed us to explore the connections between physico-chemical parameters and similarities between samples and to identify the most appropriate physico-chemical elements to describe water quality. The HCA allowed us to classify the sampling points according to the similarity between them and thus reduce them for the next follow-up analysis. Waters of the syncline are characterized by medium to low mineralization (320 < EC < 7600 μS∙cm–1 and 200 < RS < 4020 mg∙dm−3) and hardness of between 22 and 123°f. Only 19% of the samples show NO3 concentrations exceeding the Algerian standards. Microbiologically, the study reports the presence of bacteria: coliforms (<8 CFU∙0.1 dm−3), Streptococcus D (<1100 CFUꞏ0.1 dm–3), Clostridium sulphito-reducer of vegetative form (<90 CFUꞏ0.02 dm–3) and sporulate (<4 CFUꞏ0.02 dm–3), total aerobic mesophilic flora at 22°C (<462 CFUꞏ0.001 dm–3) and at 37°C (<403 CFUꞏ0.001 dm–3). It must be noted that no presence of thermo-tolerant coliforms is observed.

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The assessment of the physicochemical quality of water intended for irrigation of Oued Méskiana (Oum El Bouaghi) Algeria

Acta Scientifica Naturalis ◽

10.2478/asn-2019-0022 ◽

2019 ◽

Vol 6 (2) ◽

pp. 110-122

Author(s):

Zidi Anissa ◽

Menad Ahmed ◽

Senoussi Mohamed Mourad ◽

Zaidi Kenza

Keyword(s):

Absorption Rate ◽

Chemical Elements ◽

Sodium Absorption ◽

Downstream Site ◽

Large Area ◽

Quality Of Water ◽

Physico Chemical ◽

High Concentrations ◽

Semi Arid

Abstract The aquatic ecosystem of the Meskiana Valley (wilaya of Oum El Bouaghi) covers a large area with a permanent flow and a semi-arid climate characterized by a strong evapotranspiration. In order to determine the Physico-chemical quality, pollution and salinity of the water of the river of Meskiana and more particularly in its downstream part which is exposed to wastewater discharges, analyses were carried out at the level of three sampling points: witness, the upstream (before spill), downstream (after spill)). In order to prevent the risk of alkalization and salinization of soil, the sodium absorption rate (SAR) and the percentage of sodium were determined and represented on the Wilcox and Riverside diagram. The high concentrations of polluting chemical elements and excessive salinity obtained at the downstream site show a high risk of pollution and salinization.

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Carcass and Lean Quality Characterization of the Autochthonous Goats in the Semi-arid Zone of North-western Nigeria

International Journal of Meat Science ◽

10.3923/ijmeat.2012.34.39 ◽

2012 ◽

Vol 2 (2) ◽

pp. 34-39

Author(s):

M. Jibir ◽

I. Jibrila ◽

S. Garba ◽

A.M. Isa ◽

A.B. Omojola

Keyword(s):

Arid Zone ◽

North Western ◽

Semi Arid

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Physico-chemical characterization of prickly pear (Opunicia Ficus indica) in the semi-arid region of Bahia State, Brazil

African Journal of Agricultural Research ◽

10.5897/ajar2017.12785 ◽

2017 ◽

Vol 12 (51) ◽

pp. 3537-3541 ◽

Cited By ~ 2

Author(s):

Xavier Nunes Valtânia ◽

Xavier Nunes Núbia ◽

Nogueira Londe Luciana ◽

Guimarães de Oliveira Carlinne ◽

Akemi Medina Inoue Natália ◽

...

Keyword(s):

Arid Region ◽

Chemical Characterization ◽

Prickly Pear ◽

Physico Chemical ◽

Semi Arid Region ◽

Semi Arid

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Research on the Physico-Chemical Characteristics of Soils Locality Giuvarasti, Olt County in Correlated with the Limiting Factors of Agricultural Production

Journal of Applied Biotechnology ◽

10.5296/jab.v8i1.16936 ◽

2020 ◽

Vol 8 (1) ◽

pp. 18

Author(s):

Anca-Luiza Stănilă

Keyword(s):

Agricultural Production ◽

Soil Cover ◽

Limiting Factors ◽

Chemical Characteristics ◽

General Characterization ◽

Urban Plan ◽

Physico Chemical ◽

Site Evaluation ◽

Physical And Chemical

The purpose of this paper is the pedological characterization of land in order to update General Urban Plan the locality Giuvarasti, Olt County.Highlighting the soil locality Giuvarasti calls for a better understanding of their, the variability of their correlation with the main natural factors.Thus, there has been a general characterization of the soil cover corresponding to surface designated to be introduced in buildable urban, the presentation of the soils, the main physical and chemical characteristics. Each area it was characterized in terms of soil (soils, the area occupied by each soil in part) and of agronomic (site evaluation, framing in the class quality and the main limitation on the use of agricultural).

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CHARACTERIZATION OF SOIL ADDITIVE DERIVED FROM SEWAGE SLUDGE

Nova Biotechnologica et Chimica ◽

10.2478/nbec-2013-0016 ◽

2013 ◽

Vol 12 (2) ◽

pp. 141-153 ◽

Cited By ~ 1

Author(s):

Anna Šuňovská ◽

Miroslav Horník ◽

Martin Pipíška ◽

Juraj Lesný ◽

Jozef Augustín ◽

...

Keyword(s):

Sewage Sludge ◽

Agricultural Production ◽

Significant Proportion ◽

Treatment Plant ◽

Energy Agency ◽

Physico Chemical ◽

Strong Bound ◽

Application Potential ◽

Soil Additive

Abstract The aim of the present work is to characterize the soil additive derived from sewage sludge as potentially economically acceptable material for agricultural production as well as for soil and environment protection. The soil additive consisting of sewage sludge obtained from the wastewater treatment plant Pannon-Víz Zrt. (Győr, Hungary) and agricultural byproducts represented by wastes from grain mill industry and crushed corn cobs was prepared using the low-capacity granulator equipment constructed by Energy Agency Public Nonprofit Ltd. (Hungary). The characterization of sewage sludge as primary composite and prepared soil additive includes the determination of physico-chemical parameters such as pH determined in suspension with distilled water, 0.01 mol/dm3 CaCl2 or 1 mol/dm3 KCl solutions, pHzpc predicted by potentiometric titration and ProtoFit software, water holding capacity (WHC), cationexchange capacity (CEC) and total organic carbon (TOC). The elemental analysis by X-ray fluorescence spectrometry revealed that sewage sludge as well as prepared soil additive contain significant amount of Zn and Cu as important microelements in plant nutrition. Also, it was found that prepared soil additive represents the considerable source of a significant proportion, strong bound and in this way gradually released microelements. Obtained results suggest on the application potential of prepared soil additive in agricultural production as well as in remediation and reclamation of contaminated or degraded soil.

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