Larbi Aziz

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Doctor of science, Department of Environmental Sciences and Management, Socio-Economics-Environment-Development Unit, University of Liège (Belgium), teacher-researcher at the Department of Rural Development Engineering at the National School of Agriculture of Meknes (Morocco).Docteur en sciences, Département des Sciences et Gestion de l'Environnement, Unité Socio-Economie-Environnement- Développement,Université de Liège (Belgique), enseignant-chercheur au Département d'Ingénierie du Développement Rural à l'Ecole Nationale d'Agriculture de Meknès (Maroc).

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Armando Marques-Guedes

UNL - New University of Lisbon

Uday Chandra

SFS Qatar (Georgetown University)

Mateusz Stępień

Jagiellonian University

Davide Cristoferi

Université libre de Bruxelles

Marcos Abreu Leitão de Almeida

Universidade de São Paulo

Francesco Violante

Università degli Studi di Foggia

Viacheslav Kuleshov

Stockholm University

Mohamed Mahdi

ENAM

Miriam Halpern-Pereira

ISCTE - University Institute of Lisbon (ISCTE-IUL)

Jana Javornik

University of East London

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Valorisation du savoir local pour une cogestion conservatoire de l'arganeraie marocaine

Effect of PGPR and mixed cropping on mycorrhizal status, soil fertility, and date palm productivity under organic farming system

A field study was carried out for two years at an organic farm under arid climate in Morocco to i... more A field study was carried out for two years at an organic farm under arid climate in Morocco to investigate the effect of an integrated biofertilization approach on Arbuscular Mycorrhizal Fungal (AMF) abundance and infectivity, soil fertility, yield, and fruit quality of date palm. The biofertilization approach included three management practices namely application of compost, inoculation with a consortium of native PGPR strains originally isolated from date palms of Drâa-Tafilalet region (Pseudomonas koreensis, Serratia nematodiphila, S. marcescens, and Klebsiella sp.) and using mixed-cropping with sorghum. Accordingly, four treatments were established in this study: 1) mixed-cropping with sorghum, 2) PGPR inoculation, 3) sorghum + PGPR, and 4) control (without sorghum or PGPR). All treatments received compost as organic amendment. Results revealed that mixed-cropping with sorghum significantly increased AMF colonization intensity and spore density by more than 50% and 29%, respect...

Impact of Innovation Platforms in Promoting the Dissemination of Biotechnological Innovation: Case of Compost in Date Palm in Southeastern Morocco

by kaoutar HAMRIRI and Larbi Aziz

Journal of Ecological Engineering

The sustainability of date palm production in Tafilalet's palm grovesis threatened by many constr... more The sustainability of date palm production in Tafilalet's palm grovesis threatened by many constraints related to the dryland's severe environment, climate change, and improper human activities. Biotechnological innovations are new agricultural research discoveries increasingly used to improve agricultural sustainability. For example compost, has proven its benefits in facing date palm production constraints, improving its productivity, and enhancing soil health. Using linear approaches has proven their ineffectiveness to disseminate the advantages of innovations to small producers. As an alternative, Innovation Platforms (IPs) constitute a participatory approach based on a multi-stakeholder alliance for disseminating innovations. This article aimed to study the effects of IPs on the compost adoption and dissemination process as well as evaluate compost impacts on the production of dates. Two types of investigation tools were conducted on members of 47 IPs. Data were analyzed using factorial analysis, content analysis, and communication network analysis. The results show that IPs are a new organizational innovation impacting positively on date palm social systems. They create powerful collective learning through their strong dynamism and interaction. The producers who adopted compost are characterized by a high level of education, take a responsible position in GIE, have a large social network, interact with the research team and other producers, engage and participate in the activities of IPs, search for agricultural news, and have the ability to accept change and develop their skills. Compost can improve the water-holding capacity of soil, increase yield, and reduce expenses by decreasing the need for water, fertilizers, and phytosanitary treatments. Compost is the best alternative to face the environmental and climate change drawbacks on the production of dates.

Larbi Aziz

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