Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Mariana Carmelia DRAGOMIR BĂLĂNICĂ, Alina Gabriela CIOROMELE, Nicoleta AXINTI, Valentina VOICU
In the recent past in order to increase the harvest, the production per hectare and its protection against pests and diseases, began to be used, in high doses, chemical and natural fertilizers. The aim of this paper is to analyse the impact of using five categories of fertilizers: chemical, nitrogen, phosphate, potassium and natural fertilizers from 1990 to 2022, in the South-East region of Romania, a predominantly agricultural area on vegetable agricultural production taking into account the three main types of crops: grains, maize, sunflower. In the 33 years, in the South-East region of Romania, the following amounts of chemical fertilizers 2.72 tons of 100% active substance/hectares; nitrogen fertilizers 2.22 tons of 100% active substance/hectares; phosphate fertilizers 1.79 tons of 100% active substance/hectares; potassium fertilizers 1.37 tons of 100% active substance/hectares and natural fertilizers 651.83 tons of 100% active substance/hectares. The analysis of the impact of fertilizers grains production varies from 2808398 tons in 1990 to 3387102 tons in 2022.
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