Phophate glassy fertilizers

Abstract

The main goal of agricultural production should be the production of a sufficient amount of agricultural products with the least possible impact on the environment. In traditional agricultural production, in order to obtain a satisfactory yield, artificial fertilizers are used, which have multiple negative impacts on the environment. Glassy fertilizers are a type of fertilizer that, at least according to previous research, do not have a negative impact on the environment and the same time the use of these fertilizers yields not less than when using traditional fertilizers. Glassy fertilizers are fertilizers with controlled dissolution, they do not pollute groundwater or surface water, the pH of the soil does not change with their use, by changing the composition they can adapt to the requirements of each crop individually, etc. The paper presents three phosphate glassy fertilizers of different chemical composition, obtained at the Center for Inorganic Technologies, ITNMS. The method of obtaining of glassy fertilizers, their dissolution rates in a medium that simulates soil conditions, the changes in pH values of solutions for different dissolution times and the effect of temperature on dissolution rates are shown. Also, the results of the influence of glass fertilizers on plant cultures in real conditions are presented.