to evaluate the effects of organic, chemical and integrated fertilizers on yield and yield components of turnip (brassica rapa) an experiment was conducted in research farm of college of agriculture, university of tehran, iran, during 2009 - 2010 growing season. the treatments were arranged as randomized complete blocks design with three replications and fifteen different fertilization systems....

The main goal of this study was to identify the treatment that increases the populations of spiders, which are effective predators in agroecosystems. In 2013 and 2014 the experimental eggplant (Solanum melongena L.) field was two different treatments, organic fertilizers and chemical fertilizer treatment, and in 2014 we surrounded organic fertilizer plots with the flowering plants mealy cup sag...

The objective of this study was to introduce various spreader flap technique modifications to adjust the width of the middle nasal vault in patients who underwent rhinoplasties with humpectomy. Decisive modifications of current spreader flap techniques were performed to allow a more natural restoration of the middle nasal vault and the internal nasal valve after humpectomy. Additional steps pro...

Just after transplanting, the vegetable has difficulty in nutrients uptake. To explore the effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and fertilizer use efficiencies, this experiment consisting of six treatments was implemented and divided into three groups: 1) no fertilizer (NF) and vegetable planting fertilizer (VPF); 2) conventional fe...

In order to improve the use efficiency of a cover crop, hairy vetch (Vicia villosa R., HV), and supplemental chemical N fertilizer, N release and uptake patterns from HV, fast-release N fertilizer (Fast), and slow-release N fertilizer (Slow) in fresh market tomato (Solanum lycopersicum L.) production were investigated using the 15N-labeling method. In the incubation of soil-added N at two mix r...

This article presents the electrothermal analysis of hexagonal boron nitride (hBN) grown by chemical vapor deposition (CVD) as a two-dimensional insulator heat spreader. The thickness and indirect bandgap hBN are 11.5 ± 0.8 nm 5.85 0.04 eV, respectively. fabricated Pt/Cu/Ti (30/500/20 nm) micro-coil served source sensitive resistance thermometer, with temperature coefficient higher than 0.0066 ...

In order to obtain accurate discrete element simulation model (DEM) parameters of compound fertilizer and solve the problem challenging measurement contact particle, calibration test was carried out by using EDEM soft-ware. This study measured intrinsic particles through physical tests established a that corresponds with actual situation calibrate particles. By Blackett-Burman test, had signifi...

Fertilizer application is one of the most important operations in agricultural production. Thanks to their low cost and robustness, centrifugal spreaders are widely used to carry out this task. However, when distances between successive paths followed by the tractor in the field are not constant, application errors occur. These ones generally cause waters pollution and economic issues. In this ...

abstract in order to investigate the effects of nutrient resources and weed management on qualitative and quantitative criteria of cat tyme (teucrium polium), an experiment was conducted as split plot based on a complete randomized block design with 3 replications at the agricultural research station, ferdowsi university of mashhad, iran, during the years 2008 and 2009. treatments included diff...

In this paper, we describe ongoing work to investigate the properties of the heat spreader, and its implication on architecture research. In specific, we conduct two experiments to quantify the heat distribution across the surface of a spreader during normal operation. The first experiment uses T-type thermocouples, to find the temperature difference across different points on the spreader. We ...