Mudas de maracujá produzidas em recipientes com diferentes volumes e composição de substratos

Abstract

Seedling is one of the main inputs in an agricultural production system, being directly related to the productivity and quality of the fruit. Aiming at the production of good quality seedlings, there is a need to find alternative substrates and containers that are economically viable and environmentally correct, especially for family farmers in agroecological systems. In this context, the experiment was carried out with the objective of evaluating container volumes and different substrates on the emergence and production of yellow passion fruit (Passiflora edulis Sims) seedlings. The experiment was carried out between September and November 2021, in Barreiros - PE at the IFPE Campus Barreiros. A completely randomized design was used, in a 2x5 factorial scheme, with four replications. The treatments consisted of two volumes of substrate (300 cm3 and 500 cm3) and five substrates with different amounts: soil + fertilizer (NPK); soil + sheep dung (1:1); soil + sheep dung (2:1); soil + poultry litter (1:1) and soil + poultry litter (2:1). The percentage and rate of emergence speed were evaluated. Regarding the seedling development characteristics, the following were analyzed: number of leaves, seedling height, stem diameter, length of roots, fresh and dry mass of shoots and roots. For the production of yellow passion fruit seedlings, the reuse of 300 cm3 disposable cups is a sustainable alternative for the small farmer. The substrates soil + sheep manure and soil + NPK stood out, producing yellow passion fruit seedlings of better quality, with this, the substrate with the composition of soil + sheep manure (organic fertilizer) is a good substrate option and can be produced on the property without adding external input. The use of soil plus poultry litter (in the proportions 1:1 and 2:1) as substrate hinders the proper development of the seedlings