Serpantinito pagrindu pagamintų granuliuotų mineralinių trąšų fizikinių-mechaninių savybių tyrimas

Abstract

This article reviewed the mineral and natural rocks, which are widely used in the plant as fer-tilizer and soil improvement. The spreading use of minerals and rocks are broken, if necessary processing, clearing of the tare materials. The fertilizer normally used in particulate or granular form. One of these is the mineral rock Serpentine (magnesium silicate), which is very rich in mag-nesium, MgO it may be up to 40 % or more. The Serpentine is without plenty of magnesium and other elements that are important for growing plants in agriculture. This rock as a fertilizer for ag-ricultural plants and soil improvement material was not used. This paper presents the results of experimental studies. There were investigated and determined the following Serpentine and other minerals granular fertilizer physico-mechanical properties: granules moisture content; granules biometric indicators (dimensions, mass, density); granule strength (resistance to compression). Experiments were carried out by using the widespread and approved in Lithuania and other EU countries methodology.