Influence of the operating process of liquid farm fertilizers application on machine sets effectiveness
Dudak, J.(Slovenska polnohospodarska univerzita, Nitra (Slovak Republic) | Petransky, P.Slovenska polnohospodarska univerzita, Nitra (Slovak Republic) | Bolla, M.Slovenska polnohospodarska univerzita, Nitra (Slovak Republic))
Used machine sets (applicators) for application of liquid farm fertilizers (dung-water, stale) partake in final effect with significant rate, which can be achieved when using these sets in a process of field crops fertilization. In use prevailing using of out-of-date applicators for surface planar applying has striking default in increased losses of ammoniacal nitrogen by its emissions to air. Modern application systems are characterized by higher the first cost that discourages from buying a lot of persons interested in buying. When using hose applicators for surface line application and share applicators for subsurface application of liquid fertilizers, nitrogen losses are reduced significantly, what will show in overall effectiveness of a set while carrying out operating step. It is necessary to take mentioned nitrogen losses reduction into account as charges, which affect operation of application device positively. From signified procedure of economical effectiveness calculation for compared sets it is evident, that after taking calculated increase of worth of spent pure nutriments from dung-water (what is achieved mainly by reduction of ammoniacal nitrogen by preferable application methods) into account, more favourable expense markers are achieved when lower using of applicators during a year.
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