THE IMPACT OF FOLIAR NUTRITION ON THE YIELD OF BEETROOT CROP GROWN IN HIGH FERTILITY SOIL

Abstract

The main purpose of this research is to determine the impact of soil fertility and foliar nutrition on the yield of beetroot crop grown near by the village Negorci, Gevgelija. The experiment was set up as a randomized complete block design in 2012 and 2013, with four treatments in three replications. The treatments in the experiment were as follows: 1.Control (unfertilized); 2.Foliar nutrition with Humusil fertilizer; 3.Foliar nutrition with Humustim fertilizer; and 4.Foliar nutrition with Ingrasamant foliar fertilizer. Foliar treatments of these three fertilizers were performed in form of 0.3 percent solution during the vegetative period.Before the experiment was set up, determination of soil type was carried out, wherein the identified soil type was alluvial soil. Soil sampling was also performed in order to determine some chemical properties of the soil. The analysis of soil fertility showed that levels of nitrogen, phosphorus and potassium in available forms were high. After harvesting the beetroot crop and measuring the yield, it was concluded that foliar nutrition and high content of available forms of nitrogen, phosphorus and potassium in the soil, had a positive impact on the yield of all three treatments. The highest average yield of 71.68 tone's per hectare in two years of investigation was achieved in the treatment with application of Ingrasamant foliar.