جستجوی مقالات مرتبط با کلیدواژه "dracaena" در نشریات گروه "اکولوژی"

Purpose This study aimed to investigate the effects of compost and vermicompost of municipal solid waste application on the growth of Dracaena marginata tricolor. Then, the results of foliar application of compost tea and vermicompost tea on the plants were examined.Method Experimental treatments included compost and vermicompost of municipal solid waste in proportions of 50 and 70% combined with the perlite. Then we sprayed compost tea and vermicompost tea on the plants at a concentration of 10 ml. At the end of the study, the physical and chemical properties of the substrates, the amounts of macronutrients in the substrates and the plants, growth indices, as well as anthocyanin content, were evaluated.Results The results showed that conversion municipal solid waste compost to vermicompost improved the physical and chemical properties of this material and the absorption of nutrients.  Also, the vegetative indices and anthocyanin content of this plant were positively affected. Foliar application of compost tea and vermicompost tea caused higher nutrient absorption and improved plant growth indices, except for dry root weight. In general, combining 50% of the organic components of substrates with perlite achieved better results.Conclusion Based on the findings, compost, and vermicompost of municipal solid waste are cheap and available alternatives to peat moss in the cultivation of Dracaena marginata tricolor. Also by spraying compost tea and vermicompost tea, it significantly improved the amounts of nutrients, vegetative indicators, and its appearance.

The reuse of organic wastes in agriculture is an appropriate method of environment management. Most plants with ornamental leaves are cultivated in soilless media, in which peat is the basic medium; but the use of peat is questionable due to ecological damage to the environment and economic disadvantages to ornamental plant producers. Peanut shells as remained wastes of cultivating peanut has a considerable volume, compost of which can be used as available sources of ornamental plants medium. A pot experiment was conducted to investigate the possibility of using peanut shell compost in the appropriate bed in the cultivation of ornamental plants. Dracaena marginata was selected as the test plant. The control treatment consisted of a 2:1 ratio of peat to perlite, and peat was replaced by 15, 30, 45, 60 and 100 % v/v of peanut shell compost. The study was done based on a complete randomized design in three repetitions in the ornamental plants and flowers research station, Lahijan, Iran.

The results showed that the bulk density of the planting beds decreased with the addition of peanut shell compost in comparison to the control. Peanut shell compost increased total nitrogen and available phosphorus and potassium of the media. Peanut shell compost increased plant growth indices, but the growth was reduced in 100 % in the compost treatment. The compost led to increase in nutrient uptake by plants.

In conclusion, it became known that peanut shell compost is an appropriate alternative to peat as the growth medium of ornamental plants. Because of the favorable properties and high porosity, peanut shell compost can be mixed with low-porosity substrates and applied as a substitute to peat in the cultivation media. It is not suggested to increase peanut compost level by 60 and 100 %.