Tokpli Township is a mining area occupied by SCANTOGO Mines SA (Tabligbo East Quarry) which has been operating in Togo since some years and is involved in the extraction of Limestones. According to his environmental action plan, SCANTOGO seeks to promote organic farming in order to help the population to preserve the soil, its biodiversity and human health. In the same vein, this company promotes agroforestry practices and the use of bio-pesticides to promote agriculture, biodiversity and human health. This project is an part of this approach and aims to develop cultural methods adapted to each type of soil in the area using GIS ( to identify states of degradation of different soil in the mining areas and the topsoil) and indigenous (native)  fertilizers and insecticidal plants species of the farms around mining area. At the end of this project, degradation states of the different soils of the mining area, list of bio-fertilizing and insecticidal plants as well as the cultural methods based on the use of area native plants species will be known. The cultivation of the best fertilizing and insecticidal plants and their valorization in soil fertilization (agricultural soils and topsoil) will be promoted. Synthesis Geo-ecological map, the list of bio-fertilizing and Bio-insecticide native plants species identified will be an adequate tools to improve crops yields in the mining areas and the rehabilitation of the topsoil with a low cost after exploitation.

Activities 3: Determination of the fertilizing and bioinsecticidal powers of the flagship species

Between Chromolaena odorata, Lonchocarpus cericeus and Pseudovigna argentea: which is the most fertilizing species for a good fertilization of soils around the mining ?

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27avr

Which vegetable should be grown on each type of soil for good economic profitability?

We identified the 5 priority crops in the area. On what kind of soil should we cultivate each to boost the economy of the population. We referred to an ACP with XLSTAT software.

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27avr

What are the main vegetables cultivated in the study area?

During the ethnobotanical survey and the floristic inventory, we idenified the vegetables grown in the experimental zone.

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27avr

Plants with bioinsectic properties identified in the area

Five species have been identified as plants with bioinsecticide properties while respecting our selection criteria.

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19avr

Which of these plants can be used for fertilization and as bioinsectides?

The choice of species is based on the following questions: - Which species are regularly mentioned in the bibliography as a fertilizer or bio-insecticide? - Is it common? - If it is frequent, does it regenerate easily? - Which part of the plant is used?

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19avr

Our second results: Plants species with fertilizing and bioinsecticidal properties in this area

With the floristic inventories, ethnobotanical surveys and the bibliography, this study has been made to identify the plants that can be valued in soil fertilization and the fight against pathogens without harmful effects on the environment.

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19avr

Which plant species should be planted on which soil to boost the vegetation of the area?

Which plant species should be planted on which soil to boost the vegetation of the area? SCANTOGO as all extractive industries are carrying out reforestation activities in the mining area. However, some transplanted plants fade on some soils because they are not adapted to these soils? What links can be made between the different soil types and the 15 reforested species in the mining zone? See the image.

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19avr

Our first results: Summary

Use of the Dabin scale (1970) to classify these agricultural soils according to their fertility or state of degradation.

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11avr

Our first results: Soils N, P and K contents

N, P and K contents are very important to allow state of soils degradation . The following figure shows the grades of the different soil types.

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11avr

Our first results: Soils pH values

Soil pH plays a very important role in its fertility. What about agricultural soils all around Sika-kondji quarry?

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11avr

Our first results: Chemical composition of agricultural soils surrounding the quarry

In order to know the state of degradation of the agricultural soils surrounding the quarry and the soil remediation efficiency of quarry areas at the end of exploitation, one of our objectives is to determine the physico-chemical composition of the different types of soils surrounding the quarry as well as this of the quarry in rehabilitation.

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11avr

Soil chemical analysis: N, P, K and Ca

ince 2 weeks, chemical analyzes of soils continue in 3 laboratories

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20mar

Soil chemical analysis: What is the fertility status of the different soil in the mining area?

To answer this question, the analyzes will be done on soils sampled at the University of Lomé in laboratories GTVD and ESA as well as at ITRA.

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07mar

Preparation of soil samples before analysis at university of Lomé

The samples of soil samples were processed before the chemical analyzes at the University of Lome (Department of Chemistry) from February 19th to February 25th, 2018.

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07mar

Collection of soil samples

Our team carried out soil sampling for the laboratory tests on February 17th and 18th.

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07mar

Ethnobotany surveys

On March 09 and 10, our team was in the mining area. Our objective was to carry out ethnobotanical surveys on fertilizing plants, those with insecticidal properties and problems related to vegetable production in the five villages concerned by the project (Assou kondji, Nyinda kondji, Ahlimegni Kondji, Ziome-kondji and Anagonou kpota). See the picture!

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27fév

delimitation of sections of the study area

Following the first meeting, the study area was subdivided into 16 sections (See the pictures)

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27fév

Activities 1: Meeting to train members on ethnobotanical surveys and soil samples collection

The first phase of our work focused on: - Inventories of fertilizing plants and those with insecticidal properties in the study area - identification of the different soil types as well as the vegetables most exposed to pathogenic attacks in the area

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19fév

Some vegetables fields on agricultural soils of villages all around the plant and quarry.

This activity is mainly conducted by more than 60% of women (See the picture).

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15fév

Presentation of the study area

Agriculture soils of villages arround the quarry (Assou-kondji, Nyinda-kondji, Ahlimegni-Kondji, Ziome-kondji and Anagonou-kpota) and the end-exploited rehabilited area of the quarry are our experimented study area (See on the picture).

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15fév

Our Activities during this Project

4 great activities to reach our goals!

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07fév

Our Specifics Objectives

In order to reach our final goal, our study has four main objectives.

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07fév

Our main Objectives

What are the easily accessible materials for soil fertilization and replacing chemical insecticides in the villages surrounding the quarry?

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29jan

INTRODUCTION: Our Problematic

Chemicals fertilizers and insecticides are very expensive, dangerous for human health and biodiversity.

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25jan
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