The effect of organic fertilizers (chicken manure tea and vermicompost) on some nutritional value trace in greenhouse cucumber

Currently in order to develop healthy foods, the usage of organic fertilizers has received more consideration as a suitable suggestion for the application of chemical fertilizers. Cucumbers, a fruit in the Cucurbitaceae family, have many uses for salad as a food. This research was carried out to figure out the impact of chicken manure tea and vermicompost on some nutritional traits in cucumber fruit (Cucumis sativus cv. Extreme), in a greenhouse in Iran's Tehran province. The study was factorial in a randomized completely block design with four replications. Treatments were control (without any fertilizer), control with chemical fertilizer (20-20-20), vermicompost in two levels (20 and 30 %), and chicken manure tea (1/4, 1/8, and 1/12). At the end of the grown season, fruits were harvested. Some nutrients traits were measured. Results showed that increasing the amount of chicken manure tea (up to 1/8 v/v) significantly increased trace elements (Nitrogen, Phosphorous, Potassium, Calcium, Magnesium, Copper, Iron, Zinc, Manganese) of cucumber. By enhancement in the content of chicken manure tea (1/4 v/v), all traits showed the same result as treatment with chemical fertilizer. So, manure fertilizer can be used for the improvement of nutritional value in cucumber cultivation to produce healthy foods.