Owais, S.J., Abdel-Ghani, A.H., Ghrair, A.M., Al-Dalain, S.A., Almajali, N. (2013). Effect of natural Jordanian volcanic tuff on growth, irrigation water saving and leaves mineral content of Salvia officinalis. Jordan Journal of Agricultural Sciences, 9 (4) (original) (raw)

Abstract

Environmental stresses such as low soil moisture and soil nutrient deficiency are the main causes for low productivity in arid and semi-arid regions. Soil amendments are one solution to minimize soil moisture evaporation and to improve plant nutrients uptake. The current study was carried out to examine the effect of different weathered and fresh volcanic tuff (WVT and FVT, respectively) application rates available in Jordanian market on growth, irrigation water saving and leaves mineral content of salvia (Salvia officinalis). Plant growth was significantly (P ≤ 0.01) decreased by increasing WVT/FVT application, where the maximum reductions were detected in pure WVT and FVT treatments. Leaves sodium concentration were significantly (P ≤ 0.05) increased by 2 to 3 folds by VT application, however, other essential elements such as nitrogen, iron and manganese were decreased. The water consumption in VT amended soils was reduced from 46.5 to 67.8% and to the same extent as the total pla...

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