出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：Andiroba has great socioeconomic importance for the Amazon. Thus, the objective was to evaluate the use of organic fertilization and watering shift in the development of andiroba plants. The experiment was conducted in a greenhouse at the UFRA Campus in Capito Poo - PA. The following proportions of organic fertilizers were analyzed: a) 100% soil, b) 90% soil + 10% organic fertilizer, c) 80% soil + 20% organic fertilizer and d) 70% soil + 30% of organic fertilizer. In addition, the seedlings were subjected to the following water regimes: a) daily, b) every 5 days and c) every 10 days. Plant height (HP), length (CC) and stem diameter (DC), number of leaves (NF), leaf transpiration (E), stomatal resistance (Rs), root (MSR), stem (MSC), leaf (MSF), shoot (MSPA) and total dry matter (MST), MSR/MSPA ratio and biomass allocations in the different vegetative parts were evaluated. The design used was randomized blocks, in a 4 x 3 x 5 factorial scheme (proportions of organic fertilizer, water regimes and times) for AP, CC, DC and NF and in a 4 x 3 factorial scheme for the others variables. Means were submitted to Tukey's test (p<0.05). Plants showed satisfactory development with daily irrigation. The most adequate organic doses were 10% and 20% for most variables. Thus, the need to use organic fertilizer with daily irrigation in the production of andiroba seedlings is evident.
