Bošković-Rakočević Ljiljana

Effects of pseudogley chemical amelioration on the changes in soil and plant phosphorus and potassium contents

Faculty of Agronomy, Čačak (1)
Faculty of Agriculture, Novi Sad (2)
Faculty of Agriculture, Belgrade-Zemun (3)
ARI ”Serbia” Belgrade, Center of Small Graints, Kragujevac (4)

Abstract:

Pseudogley is a soil type that is under natural conditions characterized by unfavorable properties, the most pronounced being insufficient amounts of basic plant nutrients. Using different amelioration measures, numerous researchers have tried to overcome the problems resulting from soil acidity (increased aluminum and manganese contents, deficiency of alkaline cations in the adsorption complex and reduced available phosphorus content). Calcification was the most common measure almost always producing the best results of all the measures.

(125.65 KB)

Changes in soil acidity depending on amelioration measures

Faculty of Agronomy, Čačak (1)
Faculty of Agriculture, Belgrade-Zemun (2)
Faculty of Agriculture, Novi Sad (3)
ARI “Serbia“, Belgrade, Center of Small Grains, Kragujevac (4)

Abstract:

The long-term use of high mineral fertilizer rates, aimed at intensifying the plant production, causes the process of soil acidification, resulting in the decrease of the yield of grown plants, due to increased contents of aluminium and manganese and decreased contents of organic matter and basic cations in the soil. In order to eliminate or reduce these harmful effects trials were set up and different materials for the neutralization of acidity and the excess of mobile aluminium were used: bentonite, zeolite, crude phosphates, MgO and CaO.

(126.71 KB)

Investigation of methods for Fe, Mn and Zn solubility in the smonitzas of Serbia

ARI “Serbia”, Belgrade, Center of Small Grains, Kragujevac (1,3)
Faculty of Agriculture, Belgrad- Zemun (2)
Faculty of Agronomy, Čačak (4)

Abstract:

The methods for estimating Fe, Mn and Zn solubility in smonitzas over Serbia (ten localities) used as fields and meadows, were studied in this paper. The total contents of these elements were found to be nearly equal to their mean values in the world soils. Regarding their availability, investigated smonitzas were found to be well supplied with manganese and, for the majority of samples, with iron.

(132.58 KB)
          
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