considering the importance of medicinal plants growth and biological application of fertilizers with sustainable agricultural production in order to eliminate or reduce chemical input to achieve desirable and sustainable quality, an experimental research was  conducted based on a randomized complete block design with two factors of chemical nitrogen (46% urea nitrogen) at  two levels (zero, 25 ...

The essential oil of Rosa damascena Mill. is one of the most valuable and important base material in the flavor and fragrance industry. The aim of this study was to determine the effects of different rates of cow manure on the essential oil of the rose petals. For this a field experiment was conducted on a clay loam soil at the research farm of Alborz research station, Karaj, Iran. Experimental...

this experiment was conducted, to study the effect of planting time and planting density on savory (satureja sahendica bornm.) in 2012 in alborz research station, research institute of forests and rangelands, karaj, iran. the experiment was carried out in split plot in time in the form of a randomized complete block design with three replicates. the main plots were planting times in two levels ...

in order to evaluate the effects of plant dendity on flower and essential oil yield and some important agronomic indices in borage (borago officinalis l.) under climatic condition of guilan province, this experiment was performed based on randomized complete block design with three replications, at shalman research station of agricultural and natural resource research center of guilan province,...

to evaluate the effect of humic acid and phosphorus on the quantity and quality of marigold yield an experiment was conducted at research field of islamic azad university, mashhad branch, mashhad, iran, in cropping season 2010-2011. the experiment was in split plot based on randomized complete block design, with four replications. the main plots were humic acid in four levels (0, 5, 10 and 15 k...

in order to study impacts of organic manure levels and inoculation with mycorrhiza fungi on growth, quantitative and qualitative yield of hyssop (hyssopus officinalis l.), a field experiment was conducted as factorial based on a randomized complete block design with three replications at the agricultural research station, ferdowsi university of mashhad, during two growing seasons of 2009-2010 a...

Background & Aim: Achillea filipendulina is one of the most important species of the family Asteraceae and, it considered as one of the most valuable medicinal and ornamental plants. Environmental factors affected on quality and quantity of the essential oil of medicinal and aromatic plants. So, selecting of appropriate season for harvesting can lead to increase quality and quantity yi...

coriander is one of the important economic plants for medicinal production. this investigation consists of the effects of different drip irrigation (surface and subsurface) and furrow irrigation methods on grain, oil and essential of coriander. for this purpose, experiment over the past two years (2010 and 2011) in a randomized complete block was designed in three replications. treatments were ...

effects of various fertilizers such as farmyard manure (fm), urea, and plant growth promoting rhizobacteria (pgpr, including the genera azotobacter and azospirillium) were checked on yield, fatty acids, protein, and oil contents of sunflower. a two-year field experiment was conducted in a semi-arid region in iran in 2007 and 2008. the experiment was a split plot in a randomized complete block d...

this experiment was conducted to study the effects of single and combined application of organic, biological and chemical fertilizers on qualitative and quantitative characteristics of vegetative part of coriander, (coriandrum sativum l.). the experiment was carried out as split plot in time based on complete randomized block design with three replications and 12 treatments at research station,...