Acid soil neutralization and calcium and magnesium mobility
2004
Boskovic-Rakocevic, Lj.(Faculty of Agronomy, Cacak (Serbia and Montenegro)) | Jakovljevic, M. | Ubavic, M. | Milivojevic, J.
Bearing in mind that over 50% of soils in Serbia are acid soils whose adsorptive complex is impoverished in alkaline cations, an experiment was set up with the aim to try to carry out neutralization of excessive acidity by different ameliorative measures as well as to use these measures to introduce certain amounts of Ca and Mg into soil for their contents increase. For that purpose, different rates and combinations of acidity neuralization materials, namely bentonite, lifos, zeolite, CaO and MgO, were used. Maize hybrid NSSC 201 was grown. Each ameliorative measure used had a different effect on the increase of Ca and Mg contents in the soil and thus on their plant uptake. The best effect on the Ca content increase was recorded in the variants with lime, used alone or combined with other materials, the increase being over 30% in maize leaf, unlike in maize grain, where this was not registered. Mg increase was highest in the variants with MgO, resulting in a better uptake of this nutrient (that is in the leaf concentration increase by over 100%).
显示更多 [+] 显示较少 [-]