Desempenho agronômico da cebolinha (Allium schoenoprasum L.) sob diferentes dosagens de urina de vaca

Abstract

The aim of this study was to evaluate the performance of spring onions (Allium Schoenoprasum) subjected to different dosages of cow urine. The experiment was conducted at the Campus of Engineering and Agrarian Sciences of the Federal University of Alagoas. Using a completely randomized experimental design (DIC), the experiment was carried out using 6 treatments with dosages of 0 ml, 2 ml, 4 ml, 6 ml, 8 ml and 10 ml, with 6 repetitions in each treatment, these dosages were initially administered every 5 days, starting on 14/10/2022 and after the 6th application the application interval decreased to 4 days, ending the treatments on 06/12/2022, thus totaling 13 applications. The following variables were assessed: plant height (PH), number of tillers (NP), base diameter (DB), dry and green mass of the aerial part (MSPA and MVPA) and dry and green mass of the root (MSR and MVR). The data obtained was submitted to analysis of variance and polynomial regression. The chive plants that were subjected to the 8 ml dose showed the highest averages for AP (47.35 cm), DB (5.09 cm) and MVPA (24.10 g), which corresponds to an increase of 11.24%, 0.52% and 33.37%, respectively. It was observed that the application of biofertilizer led to lower responses for NP and MSR, with an average decrease of 6.88% and 16.57%, respectively. The 2 ml and 4 ml doses provided the highest averages for MSPA (2.90 g) and MVR (7.63 g), respectively. Therefore, the 8 ml dose of cow urine is the most suitable for growing spring onions, as it provides the best responses in AP, DB and MVPA.