the high cost of fertilizers in farming systems, soil pollution and degradation of soil are factors that caused to full use of available renewable nutrient sources of plant (organic and biological) with optimal application of fertilizers in order to maintain fertility, structure, biological activity, exchange capacity and water-holding capacity of the water in soil. therefore, in recent years, ...

in order to investigate the effects of foliar application with plant growth promoters on morphological characteristics of maize (single-cross 704), an experiment with three replications and sixteen treatments conducted with priming and spraying of growth promoters (organser, mas-raiz, dulzee and control)  as factorial based on complete randomized block design. analysis of variance showed that t...

in order to study the effect of methanol on growth and yield of virginia tobacco varieties cocker 347, an experiment was carried out through a factorial experiment in randomized complete block design with 4 replications and 18 treatments. first treatment was spraying time which includes 3 levels, sprayed in the morning (8-10 hours) and noon (12-14 hours) and evening (17-19 hours) and the second...

Online social networks are rapidly asserting themselves as popular services on the Web. A central point is to determine whether two distinct users can be considered similar, a crucial concept with interesting consequences on the possibility to accomplish targeted actions like, for example, political and social aggregations or commercial promotions. In this chapter, the authors propose an approa...

The validation of alternative microbiological testing is an opportunity for a manufacturer to decrease the amount of time required for laboratory results. To properly validate these alternatives, a practitioner must first identify what is being studied. The regulatory effect on established product and process specifications and levels must be completely evaluated, as changing the method of anal...

Caryophyllaceae is the fifth largest Iranian plant family in terms of number of species where most of its species are Irano-Turanian. About 30% of these species are endemic of Iran. There are continuously uncertainties regarding the circumscription of genera, and especially because of new molecular and phylogenetic studies that in many cases do not confirm the traditional generic circumscriptio...

in order to evaluate the effects of irrigation levels and foliar application with fe and zn on quantitative and qualitative traits of red bean, an experiment was designed as split plot based on a completely randomized block design with three replications in lordegan country in summer 2011. irrigation as the main plot at three level such on: irrigation after 50, 75 and 100 mm evaporation, and fo...

Application of qualitative research in management (why, when and how) Qualitative research has been increasingly used in all sciences. In this paper we will discuss about the applications of qualitative research methods in management sciences. The differences between quantitative and qualitative researches will be clarified and the statistical methods which are suitable for such researches will...