COMPOUND FERTILIZER WITH BORON

Authors

  • A. M. Sviklas Kaunas University of Technology
  • R. Paleckienė Kaunas University of Technology
  • R. Šlinkšienė Kaunas University of Technology

Abstract

A compound fertilizer with boron was granulated employing laboratory equipment. As a boron component, boric acid and sodium tetraborate were used. Compound fertilizers of grade 14–18–18–6(S)–0,3(B) were obtained. The main physicochemical properties of the granulated products were determined.

The optimal conditions of a compound fertilizer with boron granulation were determined as 7% humidity of the raw materials′ mixture, 65–85 °C of granulators, as well as acidified water used for irrigation. In these conditions, 14–18–18–6(S)–0,3(B) commercial grade fertilizer fraction was obtained (approximately 30 percent, grain strength 40–46 N / gran).

Analysis of the stability of the 14–18–18–6(S)–0,3(B) fertilizer grade showed that by heating at a temperature of 150 ºC material degradation started, and evaporation of ammonia and nitrogen losses were considerable. This process could be slowed down by a slight acidification of raw materials.

The characteristics of the granulated product depended on the acidification solution quantity, granulation temperature and did not depend on any component of boron.

 

Author Biographies

A. M. Sviklas, Kaunas University of Technology

R. Paleckienė, Kaunas University of Technology

R. Šlinkšienė, Kaunas University of Technology

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Published

2010-06-14

Issue

Section

TECHNOLOGY OF INORGANIC MATERIALS