Crescimento e nutrição mineral em plantas jovens de ipê amarelo (Tabebuia serratifolia (Vahl) Nich) em função da calagem

Abstract

Taking into account the benefit that liming can cause for the species, providing a better production and information on the fertility of the soil. Aimed to evaluate the growth and mineral nutrition in young plants of yellow ipê (Tabebuia serratifolia (Vahl) nich) as a function of liming. The experiment was conducted in a greenhouse, installed at the Farm School of Alford- FEIGA. The soil used for the completion of the experiment was a Dystrophic Yellow Latosol medium texture from 0-30 cm depth layer of the university itself. The concealer used was the dolomitic lime, with (PRNT 90%). The seeds used were derived from access to Socôco company office in the municipality of Santa Izabel in Pará state. The fertilization was performed with macro and micronutrients in agreement with the results of the analysis of the soi. The experiment was installed in a completely randomized design (DIC), with 5 treatments and 5 replications, totaling 25 experimental units (pots), with a capacity of 5.0 kg of soil during 103 days. Every 30 days were biometric evaluations: plant height (AP), stem diameter (DC), number of leaves (NF), width of leaves (LF) and length of the sheet (CF), at the end of the experiment were evaluated, dry mass of leaf (MSF), dry mass of the root (MSR), dry mass of the stem (MSC) and total dry mass (MST). The data were statistically analyzed and processed by software AgroEstat and submitted to analysis of variance and applied the Tukey test at 5% probability. At the end of the experiment were performed analyzes of soil and leaf tissue to compose the results obtained in the experiment. Young plants of yellow ipê (Tabebuia serratifolia Vahl) Nich, when subjected to the liming through the method of saturation of bases have limited the growth, resulting in depressive effect.