The Investigation 0f Physical Properties of Composite Fertilizer Including Boron Micro Element

Özet

Fertilization is one of the most common applications in agricultural fields for achieving highyield. Fertilizer is the important input of agriculture. Raw material costs are nearly 80% of theproduction costs in chemical fertilizers. Because of high prices, fertilizer usage has started todecrease. The utilization of industrial wastes in the production reduces the costs. Not only isfertilizer expenditure significant, but also the physical properties should be considered. In thisstudy, the physical characteristics of composited fertilizer containing boron which was obtainedfrom the reaction between the diammonium phosphate and borogysum industrial waste wereexamined. Under laboratory conditions, diammonium phosphate was composited withborogysum at the mole ratio of 1:1 and during this process, the solid/liquid (S/L) ratio,temperature, time, pH of the pulp and speed were 1/3, 40°C, 90 min, 5.5 and 500 rpmrespectively. The moisture content, grain (granule) size, tight and loose volume weights,granular fracture resistance and the agglomeration angle of the new product including boronwere evaluated. As a consequence, the grain size was in range of 3 and 4 mm, loose volumeweight was 1363.32 kg/m3, the granular fracture resistance was 2.92 kg/granule, agglomerationangle was 89.9 kg/granule and Granulometric Spread Index (GSI) and Uniformity Index (UI)were recorded as 16 and 76.9. These findings were compatible with National and InternationalStandards.