Crescimento inicial de coffea canephora em solo ácido e arenoso, simulando um sistema organomineral em vaso

• Autor(a) principal: Barbosa, Mariana Cristina
• Data de Publicação: 2021
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/214764
• topic: Cattle manure; Sheep dung; Golden mussel; Robusta coffee; Conilon coffee; Esterco bovino; Esterco ovino; Mexilhão-dourado; Café robusta; Café conilon

The use of residues can be an alternative to organomineral fertilization. The manures, sources of nutrients and organic matter, are successfully used in family farming. Another residue that can be used for soil acidity amelioration is the carapace of the golden mussel (Limnoperna fortunei) that is rich in CaCO3. This work evaluated the contribution of ground carapace of golden mussels sheels (MM) associated with cattle (EB) and sheep (EO) manure, in the initial growth of conilon coffee, in a acidy sand soil. The experiment was carried out in protected cultivation, in pots (30 kg), with two Conilon coffee cultivars. The treatments consisted of two doses of EB (0 or 67 t ha-1) and four doses of MM (0, 1, 2 and 3 t ha-1) with three replications. Each treatment was incorporated into the soil before the introduction of the seedlings in the experimental units, 60 days later a dose of EO was applied on the units’ surface (20 t ha-1). After 180 days, the soil was analyzed for fertility and the seedlings’ height, stem diameter, root volume and the fresh and dry mass of aerial part and of root were mesured. Furthermore, the Dickson Quality Index (IQD) was calculated. Both the sheep and bovine manure increased the pH and the contents of P, MO, K+, Ca2+, Mg2+ and CEC of the soil. The addition of MM increased the pH and the Ca2+ contentes while reducing the potential acidity of the soil. The pH above 6.0 reduced the levels of micronutrients in the soil. The use of EB and EO shows promise in the initial growth of coffee seedlings (ALT, MFPA, MSPA, MFR, MSR, VR and IQD). The Ipiranga 501 surpassed Verdebras G35 in fresh and dry mass of the aerial part, root volume and IQD, with or without 3 t ha-1 of ground golden mussel.