Crescimento de mudas de lima ‘Tahiti’ em função de doses de micronutrientes.

Abstract

The use of mineral fertilization with micronutrients is of paramount importance to avoid nutritional deficiencies of the plants, which can compromise the growth and development of agricultural crops like the acid lime "Tahti". The work was developed to evaluate the growth of "Tahti" lime (Citrus latifolia) seedlings in function of micronutrient doses. The experiment was installed in March 2018 to February 2019, located at the coordinates (6º53'00'' S, 36º02'00'' O and at 470 m altitude). Due to the soil being poor in organic matter, three doses of 3 kg plant-1 of bovine manure were added every four months, being every day two of the respective months of March, June and November of 2018. The treatments were annual doses of 0, 15, 30, 45 and 60 g plant-1 of FTE-BR 12. The experimental design was in random blocks, with five treatments and four repetitions, totaling twenty plants for evaluation purposes. The diameter of the plant neck, diameter of the rootstock, diameter of the graft, height of the rootstock and total height of the plant were evaluated. The data obtained were submitted to variance and regression analysis. For the culture it was recommended a dose of 15 g plant-1 for the diameter of the rootstock and neck of the plant and the dose of 60 g provided better growth in height of the rootstock of the plant.