ÇELIK, Hakan Uludağ Üniversitesi, Görükle kampüsü - Ziraat Fakültesi - Toprak Bölümü, Turkey , KATKAT, Ali Vahap Uludağ Üniversitesi, Görükle Kampüsü - Ziraat Fakültesi - Toprak Bölümü, Turkey , ASIK, Barıs Bülent Uludağ Üniversitesi, Görükle Kampüsü - Ziraat Fakültesi - Toprak Bölümü, Turkey , Turan, Murat Ali Uludağ Üniversitesi, Görükle kampüsü - Ziraat Fakültesi - Toprak Bölümü, Turkey

Effects of Humus on the Development and Nutrient Uptake of Maize Grown under Calcareous and Saline Soil Conditions

31190

A greenhouse research was conducted to determine the effects of soil application of humus, on dry matter and some nutrient element uptake of maize grown under calcareous and saline soil conditions. For this purpose, 40 % agricultural lime (CaCO3) and 60 mM NaCl were added to obtain these conditions. Three doses of solid humus (0, 1 and 2 g kg^-1) were applied to soil at the beginning of the research. Application of NaCl and CaCO3 negatively affected the development, became loses on dry weights of the plants due to the stress, and decreases on mineral nutrient amounts except sodium. Although the soil application of humus was not effective at control plots, which have no salt and lime applications, the applications were found significant under the calcareous and saline conditions. The first application dose of humus elevated the dry matter yield and some nutrient elements uptake under the stress conditions. The increases at the second dose were found lower than the first application dose except potassium and calcium. We can conclude that soil application of humus could minimize the negative effect of saline and calcareous soil conditions, which affects the development of the plants, and uptake of the nutrient elements, but the optimum application doses must be determined.

633

Humus , interaction , lime , salt , maize

The Journal Of Ege University Faculty Of Agriculture

640