Phenotypic Diversity and Genetic Parameters of Coffea canephora Clones

Bezerra, Caroline de Souza; Tomaz, Jennifer Souza; Valente, Mágno Sávio Ferreira; Espindula, Marcelo Curitiba; Marques, Ricardo Lívio Santos; Tadeu, Hugo Cesar; Ferreira, Fábio Medeiros; Silva, Gabriel de Sousa; Meneses, Carlos Henrique Salvino Gadelha; Lopes, Maria Teresa Gomes

doi:10.3390/plants12234052

Cited by 2 publications

(1 citation statement)

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“…Finally, it can be inferred that the biomass of the accompanying species in the AFS provides important quantities of N, K, Ca, and Mg, nutrients that coffee needs to achieve maximum vegetative and reproductive growth [61]. Bezerra et al [62] and Ramírez-Builes and Küsters [21] point out that C. canephora demands more Ca and K when the bean is filling out. Rodríguez et al [23] maintain that the most extracted nutrient in coffee fruits is K, followed by N. Schmidt et al [23] indicate that the nutrients required by coffee in order of importance are as follows: N > K > Ca > Mg.…”

Section: Biomass Nutrient Concentrationmentioning

confidence: 99%

Nutrient Contribution and Carbon Sequestration of an Agroforestry System of Coffea canephora Cultivated by Conventional and Organic Management in the Ecuadorian Amazon

Tinoco-Jaramillo,

Vargas-Tierras,

Paredes-Arcos

et al. 2024

Forests

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Agroforestry systems (AFSs) seek synergies that improve productivity, sustainability, and environmental benefits. This is achieved through the supplying of nutrients to the soil, carbon storage, and sequestration. In the Ecuadorian Amazon, Coffea canephora is planted together with leguminous, woody, forest, and secondary forest species, where the continuous incorporation of vegetative residues from shade species represents a substantial addition of nutrients within these systems. This study was carried out from 2018 to 2022 to determine the contribution of nutrients contained in the biomass and C sequestration in agroforestry systems of coffee with conventional (high use of agrochemicals) and organic (without the use of chemicals) management. The study was carried out with a randomized complete block design, using a factorial arrangement (2 × 4 with three replications). This arrangement included two types of systems (agroforestry and monoculture) and four agronomic management practices (high and medium for conventional, and intensive and low organic). The biomass and nutrient content were measured twice a year (every 180 days); in addition, the yield was also recorded. A multivariate and univariate analysis was used for data analysis through R and SAS software. After five years of evaluation, it was determined that the N, K, Ca, and Mg contents were higher in the agroforestry systems than the monocultures. In the AFSs, the highest nutrient content was obtained with the medium conventional and low organic agronomic management, while in the monocultures, it was obtained with the high and medium conventional management. In addition, at a soil depth of 20 cm, the total storage and CO2 were 38.12 and 139.8 t ha−1, respectively. The highest yields were obtained with conventional management in AFSs (1599 kg ha−1) and monoculture (1789.45 kg ha−1). Overall, AFSs showed a significant contribution of nutrients, such as N, K, Ca, and Mg, for coffee cultivation; moreover, yields were similar in the AFS and monoculture with both conventional and organic management, which is positive, since AFSs also contribute environmental benefits.

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