MAIZE NUTRIENT UPTAKE AFFECTED BY GENOTYPE AND FERTILIZATION

The content of nutrients in maize are commonly related with fertilization and soil quality and rarely explained with the individual hybrid properties. Therefore, the aim of this study is to access a long term fertilization system on ear leaf of Mg, Fe, Mn and Cu content in six maize hybrids(NS 3014, NS 4015, NS 5043, NS 6010, NS 6030 and NS 7020). Samples were collected from a long-term experiment at the Rimski Sancevi experimental field of the Institute of Field and Vegetable Crops in Novi Sad. The study included maize monoculture and 2-year rotations with the application of NPK and manure. Results showed that ear Mg content was influenced with the treatments, hybrid and their interaction and ranged from 1.77-2.69 g kg(-1). Iron variability was significantly affected with the treatments and interaction (hybrid x treatments) in range from 103.2 to 151.9g kg(-1). The ear manganese content (41.1-63.6g kg(-1)) derived from treatments and hybrid effect and Cu (12.3-23.6 g kg(-1)) was significantly influenced with treatments. Across all treatments, in average, NS6030 had higher values of nutrient and NS3014 was lower in ear nutrient content. This indicates that vegetation length could favor nutrient accumulation. Obtained results suggested that even on fairly productive soil such as Chernozem hybrid selection and the balanced fertilization is crucial for managing the maize nutrient content.