in order to study the morphological characteristics affecting yield of echium amoenum under different nutritional treatments and different plant densities, a factorial experiment based on rcbd design with three replications was conducted at agricultural research station, ferdowsi university of mashhad, iran in 2011-2013 growing seasons. the experimental treatments were all combination of three ...

In order to study the effect of foliar applications of micronutrients on yield, extraction oil production and chemical composition of pot marigold (Calendula officinalis), two experiments were conducted in the randomized complete block design with three replications in Shahrekord, Iran during two growing seasons 2014 and 2015. The objectives of this study were to determine the effects of foliar...

introduction: nitrogen is an essential element forplants and in combination withelements such as carbon, oxygen, hydrogen and sulfur results ineven more valuable materials such as amino acids, nucleic acids, alkaloids. hibiscus tea (hibiscus sabdariffa ) from malvaceaefamily is known by different names in different parts of the world. in iran it is calledthe maki tea, tea meccaorred tea.as an i...

one of the most important issues affecting environmental health and sustainable food production is application of organic fertilizers instead of chemical fertilizers. this study set out to investigate the effect of application of soil humic acid and fulvic acid on barley plant. to this end a factorial experiment was carried out on the basis of randomized complete block design with four replicat...

basil (ocimum basilicum l.) is a medicinal plant belonging to the mint dark, with fresh vegetables and spices are used. nowadays the use of chemical inputs in farming causing severe environmental problems such as water pollution, soil and soil fertility is decreasing. sources rather than chemical, biological resources important for the preservation of fertility and biological activity, improvin...