عنوان مقاله [English]
نویسنده [English]چکیده [English]
The effects of 0, 15, 30 and 60 g kg-1 of sewage sludge exposed to gamma irradiation at doses of 0, 5, 10 and 20 kGy were investigated on macronutrients and sodium uptakes in the basil root and shoot. The results showed that the application of 15 and 30 g sewage sludge per kg soil increased the uptake of phosphorus, potassium, calcium, magnesium and sodium in the root and shoot and nitrogen of shoot. The application of 60 g irradiated and non-irradiated sewage sludge with irradiation dose used in this study per kg soil did not have any significant effects on phosphorus, potassium, magnesium and sodium absorption in the shoot and root, nitrogen in the shoot and calcium in the root, but significantly decreased the calcium absorption of shoots. The maximum uptake of phosphorus, potassium, calcium and magnesium in the root and shoot and nitrogen in the shoot was obtained in 30 g kg-1 sewage sludge irradiated with 20 kGy absorbed dose. The maximum uptake of sodium was revealed in 30 g kg-1 sewage sludge irradiated with 10 kGy absorbed dose. With application of irradiated sewage sludge relative to non-irradiated in each level, the absorption of all studied elements increased in the basil root and shoot.