Produção Nacional
Correction of Soil Acidity in an Organic System of Shadowed Coffee
2021; Sciencedomain International; Linguagem: Inglês
10.9734/arrb/2021/v36i1030432
ISSN2347-565X
AutoresVictor Casimiro Piscoya, Cristiane Maria Gonçalves Crespo, Renisson Neponuceno de Araújo Filho, Julyane Silva Mendes Policarpo, Nayane Laísa de Lima Cavalcanti, Taiza Karla Alves Souza, Alex Souza Moraes, Moacyr Cunha Filho, Gabriel Carlos Moura Pessôa, Robson Carlos Pereira de Melo, Rosângela Gomes Tavares, Thaiana Brunes Feitosa, Mílton Marques Fernandes, Raimundo Rodrigues Gomes Filho, João Lucas Aires Dias, Luiz Diego Vidal Santos,
Tópico(s)Clay minerals and soil interactions
ResumoThrough sustainable agriculture it is possible to explore the coffee culture in consortium with native forests in more rugged reliefs, as coffee is a permanent crop in addition to the climatic conditions offered by the swamps that favor its development. Given the above, the present work proposes, based on the acidity results, to quantify the need for correctives in the soil to obtain a better nutritional use offered by agroforestry cultivation of organic coffee in the shade with favorable results to increase productivity and, consequently, the farmer's profit. The research was carried out at the Várzea da Onça farm, in the Yaguara Ecological Complex, located in the municipality of Taquaritinga do Norte, Borborema plateau, in the Agreste Pernambuco mesoregion. Altitude, it is necessary to adopt appropriate management techniques that guarantee production, soil conservation and biodiversity, proposing soil correction to guarantee the ideal nutritional conditions for coffee growth. For this purpose, soil samples were collected in the Top (T), Hillside (E) and Pedimento (P) ranges at depths of 0-20, 20-40 and 40-60 cm when planting shaded coffee and soil samples from Native Forest (MN) preserved and legally protected from the Brejo de Taquaritinga. Active, exchangeable and potential acidity were analyzed, as well as the sum of bases, the potential and effective cation exchange capacity, base saturation and aluminum saturation. The results obtained were subjected to analysis of variance and the means were tested at 5% by the Tukey test. A potential of the system was found with low to very low natural fertility, with a strongly acidic reaction. Thus, adequate soil management and correction techniques are necessary for the crop to absorb all the nutrients made available by the organic matter present on the surface, concluding that all slopes require liming, the slope of Hillside and Mata Nativa they also need plastering for the culture to develop properly.
Referência(s)