Selon la Food and Agriculture Organization, 80 % des humains seront urbains en 2050. Le développement de l'agriculture urbaine (AU) est crucial pour la survie alimentaire de l'Humanité. Des zones de maraîchage urbain, fermes verticales ou aquaponiques, jardins potagers collectifs (éventuellement sur les toits) ou privés avec poulaillers, arbres fruitiers, etc., se développent à l'échelle globale. Les villes sont caractérisées par des densités de population élevées, de fortes compétitions pour l'usage de l'espace, et des pollutions fréquemment observées. Ces caractéristiques...

The present study was conducted to evaluate the effect of biological control of sugarcane stem borer (Chilo infuscatellus Snellen) with an egg parasite Trichogramma chilonis in sugarcane crop. Experiment was laid out in Randomized Complete Block Design with five treatments i.e. (T1; 30,000eggs/acre, T2; 40,000eggs/acre, T3; 50,000, T4; 60,000 eggs per acre and T5; Control) having three replications each. Experiment was conducted at Chack No.109 G.B. near Jaranwala, District Faisalabad, Punjab. Data regarding mean infestation was recorded at the same time from the control plot and from the...

The nanostructures of transition metal oxides have gained considerable attention for energy storage devices as they can deliver high levels of electrical power and offer long operating lifetimes, but their specific capacitance is too low for many important applications. The poor conductivity of metal oxides limits the charge/discharge rate for high energy/power densities and the specific capacitance severely decreases under high current. In this book we proposed a simple and an efficient method to improve the conductivity of metal oxide nanowires based electrodes by interweaving nanowires...

New chemical synthetic route for the fabrication of metal oxide nanostructures and their structural, optical, electrical and electrochemical properties are presented. Chemical solution deposition method was used to control the phase and crytallinity by varying the growth temperature and time. Detailed characterizations of the crystal structure, chemical composition, and morphology of the as-synthesized products were carried out using adequate techniques. The mechanism governing the direct growth of oxide nanostructures on conducting and insulating substrates is studied. Field emission,...