Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 1
Written by Anișoara DUMA COPCEA, Nicoleta MATEOC – SÎRB, Casiana MIHUȚ, Radu ILEA, Ramona ȘTEF, Dana SCEDEI, Lucian Dumitru NIȚĂ

The purpose of this work relates to the study of sunflower on an area of 8 ha, carried out in the territory of Ip in Sălaj County, Romania, on the land of a family farm. The choice of aggregates is also based on direct operating expenditures. When carrying out works with different agricultural aggregates, one should always choose the optimal variant that is apreciated by the minimum amount of the number of aggregates taking part in the performance of the work or the minimum amount of time, i.e., after the consumption of fuel. Two types of tractors were used for the execution of mechanized works in sunflower: Tractor U 650 M and tractor FENDT FARMER 311 LSA. In order to obtain large and high-quality production in sunflower, fertilization is of particular importance. The soil fertiliser reserve must provide plants with nitrogen, phosphorus and potassium supply from the first days of vegetation. The doses of fertilisers to be administered vary depending on soil reserve, soil type and on other factors related to climate and soil. The factors that influenced sunflower production in 2019 were: climatic conditions, crop rotation, soil fertility, mechanical work quality, sowing time, and cultivated hybrid.

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