The Development of Vertical Patternator to Evaluate the Hydraulic Sprayers

Abstract

In Egypt, it could be not able to test the vertical distribution for agriculture sprayer machines this may be due to the poor measuring instruments such as vertical patternator. The aim of the current research is develop and evaluate an inexpensive vertical patternator for hydraulic sprayers. The current research study carried out in laboratory of agricultural engineering dept., faculty of agriculture, kafr El-Sheikh University. The vertical patternator manufactured and made from the local material under laboratory and work station in kafr El Sheikh University. The tests and the evaluation of the patternator included two main parameters. The first treatment was evaluation the three vertical sprayers under laboratory conditions. As well as, the second treatment was evaluation two different measured methods to determine the efficiency of the sprayer by using the CV %. The results indicated that, the Tee-jet XR 110-3 VP nozzles gave the highest percentage value of spray liquid captured compared to Hardi110-02 LS and LU110-04 nozzles. The development patternator captured more spray liquid due to increase of the operating pressure of spray liquid. The t-test value for LU 110-04 nozzle was -1.48 with standard error (SE) 0.23 and probability P-value 0.89. It could be used the automatic method to estimate the CV % and it's easy to apply. As well as, there are no different effect between manual and automatic method at the volume application rate 475 l·ha -1, 960 l·ha -1 and 1150 l·ha -1 for determination of the spray uniformity or CV %.

U Egiptu nije moguće ispitivati vertikalnu raspodelu poljoprivrednih prskalica zbog nedostatka mernih instrumenata kao što su vertikalni razdeljivači. Cilj ovog istraživanja je da razvije i ispita jevtin vertikalni razdeljivač za hidraulične prskalice. Istraživanje je izvedeno u laboratoriji Instiuta za poljoprivrednu tehniku poljoprivrednog fakulteta Univerziteta Kafr El-Sheikh. Vertikalni razdeljivač je napravljen od priručnih materijala u laboratoriji i radionici Univerziteta. Testirana su i ispitivana dva glavna parametra. Prvi ogled bila je ocena tri vertikalne prskalice u laboratorijskim uslovima. Drugi ogled bila je ocena dva različita merna metoda za određivanje efikasnosti prskalice preko CV %. Rezultati su pokazali da su mlaznice Tee-jet XR 110-3 VP dale najveći procenat uhvaćene isprskane tečnosti u poređenju sa mlaznicama Hardi110-02 LS i LU110-04. Razvijeni razdeljivač je uhvatio više tečnosti zbog povećanja radnog pritiska tečnosti u spreju. Vrednost t-testa za LU 110-04 mlaznice bio je -1.48 sa standardnom devijacijom (SE) 0.23, a verovatnoća P-vrednosti 0.89. Može se upotrebiti automatski metod da se oceni CV % i lako se primenjuje. Takođe, nema različitih efekata između ručnog i automatskog metoda zapreminske norme prskanja od 475 l·ha -1, 960 l·ha -1 i 1150 l·ha -1 za određivanje ujednačenosti spreja ili CV %.