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Irrigation Management in the Paricá Seedlings Development in Amazon Region

2023; UNIVERSIDADE FEDERAL DE VIÇOSA; Volume: 70; Issue: 1 Linguagem: Inglês

10.1590/0034-737x202370010002

2177-3491

Wendel Kaian Oliveira Moreira, José Darlon Nascimento Alves, Raimundo Thiago Lima da Silva, Leilane Avila Bezerra, Euzanyr Gomes da Silva, Márcio Furlan Maggi,

Soil Management and Crop Yield

Paricá is a native tree to the Amazon region recognized for several socioeconomic applications. However, there are few studies on the influence of irrigation regime in the seedling stage. Thus, the objective of the research was to evaluate the effect of water depths and irrigation frequency on the development of Paricá seedlings in the edaphoclimatic conditions of the Amazon region. The experiment was conducted in a greenhouse at the Federal Rural University of the Amazon (UFRA), Capitão Poço Campus, located in Capitão Poço, Pará, Brazil. The experimental design was randomized blocks, in 5x2 factorial arrangements, consisting of five irrigation depths and two irrigation frequencies, with four replications. The highest irrigation depth (725 mL) at daily frequency resulted in lowest biomass production maybe due to hypoxia in the root zone. In contrast the every three day irrigation promoted high biomass production with the highest irrigation depth (725 mL). Contrarily, 435 mL depth produces high quality seedlings at daily irrigation frequency. Regarding the rational use of water, producers may use 725 mL at 3-day frequency, given that it has promoted high seedling quality and provides savings of 580 mL compared to the best water depth on the daily irrigation (435 mL).