نوع مقاله : مقاله پژوهشی
1 دانشیار بخش زیست شناسی دانشگاه شیراز
2 گروه زیستشناسی، دانشکده علوم، دانشگاه شیراز
عنوان مقاله [English]
Evaluation of compost and vermicompost by growth of plants under stress is a bioassay analysis to know their activity in the environment. Compost prepared from municipal solid waste under aerobic condition and produce by the activity of microorganisms. Vermicompost prepared from agricultural waste by composting process using various worms. Drought stress was applied at levels of 0, 5 and 9 days of no irrigation and fertilizers at levels of 0, 10 and 30% of pot volume, each with three replications in a greenhouse. Drought stress reduced the growth of the plants. Vermicompost at 30% level increased the growth of shoot but compost in both levels reduce the growth of shoot and root. Drought stress increased antioxidant, phenolic compounds and proline. Compost and vermicompost increased the antioxidant and proline. Compost and vermicompost contain a lot of phosphorus, nitrogen, organic matters and salts so can increase the amount of some essential oil compounds. It sometimes increase toxicity and reduce plant growth, especially if prepared from raw materials containing toxic organic compounds and heavy metals and not completely processed. It is recommended that agricultural waste can be used in the preparation of compost and urban wastage can be consumed as little as possible.