Effect of vermicompost and cow manure application on growth and flowering of Petunia hybrida

Petunia is one of the most common and important flowers in landscapes. in current study, the effect of vermicompost and cow manure integration on growth and flowering of petunia was investigated at Bam, Kerman Province, Iran, as a factorial experiment in completely randomized design with three replications in greenhouse. The mixture of vermicompost and cow manure in three levels of 15, 30 and 45% of each fertilizer were used in planting time. Morphological traits such as shoot length, dry and fresh weight of shoot and root, number of leaf and flower and flower diameter were measured after three months. The results showed that the application of vermicompost and cow manure under 30% had no significant effect on morphological traits. The application of vermicompost in 30% and 45% with cow manure in 45% increased all of the morphological traits in all measured traits. There weren’t significant difference between these two treatments except leaf number. Considering, organic manures important role in sustainable agriculture,application of these organic manures in amount of vermin compost 30% with cow manure 45% for increasing vegetative growth, bush size, flower number and size in petunia is recommending for decreasing of chemical fertilizers hazards on environment.