Karim lyamlouli

OCP Group

Under arid and semi-arid conditions, direct application of phosphate rock (PR) as a source of phosphorus (P) for crop production is likely influenced by agricultural practices and soil properties. Different approaches could be used to improve the agronomic efficiency of low-grade PR over a wider range of soils and crops. In this study, biological,...

One of agriculture’s most important goals is fnding the proper equilibrium between sus-tainability and intensifcation of production. The exponential growth of the world population, climate variability, and soil degradation are essential factors that require the development of novel agricultural practices to achieve food security. In this context, o...

The growing interest in low-input agriculture in recent years has focused the use of microbial biofertilizers to improve plant growth and yield through a better mobilization of indigenous source of key nutrients such as nitrogen, phosphorus, potassium etc. In this context, soil microorganisms especially Actinobacteria might play an important role....

Rising global population and affluence are increasing demands for food production and the phosphorus (P) fertilizers needed to grow that food. Essential are new approaches for managing the growing amount of phosphogypsum (PG) that is a by-product of phosphoric-acid production from phosphate rock. Today, only ~15% of the worldwide production of PG i...

Olive mill wastewater sludge (OMWS) is the main by-product of the olive industry. OMWS is usually dumped in landfills without prior treatment and may cause several eco-environmental hazards due to its high toxicity, which is mainly attributed to polyphenols and lipids. OMWS is rich in valuable bio-compounds, which makes it highly desirable for valo...

Olive mill waste sludge (OMWS) is a solid by-product resulting from olive oil extraction, OMWS is usually left decanting in landfills causing environmental pollution and a significant loss of recyclable organic resources. This study aims to evaluate the feasibility of producing an organic amendment through treating OMWS with solar drying (SDy), whi...

The present study investigates the effect of Ulva lactuca extract as seed-priming agent for tomato plants under optimal and salinity stress conditions. The aims of this experiment were to assess the effect of seed priming using Ulva lactuca extract in alleviating the salinity stress tomato plants were subjected to, and to find out the possible mech...

In Mediterranean countries, the olive oil industry generates the most important agro-industrial wastewater, which results in the production of a highly toxic sludge following effluent decantation, thus endangering the environment. In this investigation, an optimized composting process via microbial inoculation is suggested as to alleviate the toxic...

Soil fertility and plant nutrition require an adequate management of essential macronutrients such as potassium (K) and phosphorus (P), which are mandatory for plant development. Bioleaching of K and P bearing minerals improves their chemical weathering and increases the performance of the biofertilization strategies. In this study, in vitro and gr...

Purpose : The deterioration of agricultural soil can be alleviated by maintaining an appropriate level of soil organic matter by using organic amendments such as compost and biochar. The aim of this study was to investigate the effects of olive waste-based compost, wood-based biochar and their combination on the chemical and microbial properties of...

In the rhizosphere, plant growth is facilitated by plant-growth-promoting rhizobacteria (PGPR). PGPRs like Actinobacteria can increase level of phosphate available to plants through P solubilization or mineralization. In this study we evaluated the ability of nine Phosphate Solubilizing Actinobacteria (PSA) to release P from rock phosphate (RP) and...

Limited P availability in several agricultural areas is one of the key challenges facing current agriculture. Exploiting P-solubilizing bacteria (PSB) has been an emerging bio-solution for a higher rhizosphere P-availability, meanwhile the above- and below-ground interactions that PSB would trigger remain unclear over plant growing stages. We hypot...

In oases ecosystems, date palm (Phoenix dactylifera L.) is a plant that has several socio-economic and environmental roles. During the last decades, the cultivation of date palm and its development are threatened by several constraints, in particular, organic and mineral matter depletion. The main objective of this study was to evaluate the effects...

The time when plant biostimulants were considered as “snake oil” is erstwhile and the skepticism regarding their agricultural benefits has significantly faded, as solid scientific evidences of their positive effects are continuously provided. Currently plant biostimulants are considered as a full-fledged class of agri-inputs and highly attractive b...

The present study investigates the biostimulant effects of 18 Crude Bio-Extracts (CBEs) obtained from Microalgae and Cyanobacteria on tomato plant growth, chlorophyll content, nutrient uptake and metabolite profile. Significant root and shoot length improvement (112.65%, 53.70%); was recorded at treatment with Aphanothece sp and C. ellipsoidea CBEs...

Phosphorus mobility and availability in soil are mainly governed by both soil and fertilizers proprieties including soil P-sorption capacity, soil organic matter content, soil pH and P fertilizer solubility. Although, the application of considerable P fertilizer rates in calcareous soils, containing high levels of calcium carbonate, P availability...

The production of biofertilizers at industrial level is a bottleneck because bacterial strains are generally developed and managed by research laboratories and not by production units. A seamless transition from laboratory to field application is, therefore necessary. This review provides an overview of the constraints that limiting the application...

The objective of this study was to investigate chemical, biological and eco-toxicological parameters of a compost produced through the co-composting of dewatered primary sludge (DPS) and date palm waste to evaluate in which extent it can exploited as a bio-fertilizer. DPS and date palm waste were co-composted in aerobic conditions for 210 days. Phy...

Tomorrow’s agriculture, challenged by increasing global demand for food, scarcity of arable lands, and resources alongside multiple environment pressures, needs to be managed smartly through sustainable and eco-efficient approaches. Modern agriculture has to be more productive, sustainable and environmentally friendly. While macronutrients such as...

Water pollution due to release of industrial wastewater has already become a serious problem in almost every industry using dyes to color its products. In the present study an enzymatic decolorization of Cibacron blue by a fungal peroxidase from Coprinus cinereus was investigated. Results show that immobilized cells in calcium alginate are able to...

As part of a collaborative project to investigate human impacts on Quercus suber L. (cork oak) forests, five research groups from countries in Europe and North Africa undertook a survey of soil quality (physical properties, potentially toxic elements) at sites in NW Tunisia and NW Sardinia. All groups performed the analysis of soil samples after ag...

Microorganisms contained in estuary water samples (Deltebre, Spain) have been the subject of several tests of resistance against various chemicals, such as heavy metals, hydrocarbons, and antibiotics. Isolates were plated (cultivated) on Trypticase Soy Agar plates and purified for further screening. The strains were extremely resistant to heavy met...