Uso de cama de aviário na composição de substrato para produção de mudas de Eucalyptus grandis

Abstract

This study aimed to evaluate increasing poultry litter doses on substrate formulation for the production of Eucalyptus grandis seedlings. The study was conducted at UNEPE (Unit Education and Research) of Universidade Tecnológica Federal Paraná, campus Dois Vizinhos, in horticulture. The experiment consists of five treatments, being the commercial substrate and growing poultry litter doses (S + CA), T1: S100%; T2: S-75% and CA-25%; T3: S-50% CA and 50%; T4: S-CA-25% and 75%; T5: CA-100%, Mixed in mixer for a period of three minutes and placed in tubes . The seeding was performed manually and the covering of the seeds by placing a thin layer on each of the respective substrate treatment. The irrigation occurred as needed and monitoring the temperature once daily . The variables were height , stem diameter , root dry weight , shoot dry mass mortality. The results show that even the lowest dosage poultry litter was not satisfactory for the production of eucalyptus . This is possibly because the poultry litter have an alkaline pH with nutrient availability to the same effect , exponentially affecting development. It is suggested studies with smaller amounts of manure in the production of eucalyptus seedlings.