Accumulation of Macronutrients for the Conilon Coffee Tree

Bragança, Scheilla Marina; Martínez, Herminia; Leite, Hélio Garcia; Santos, Lucio Pereira; Sediyama, Carlos Sigueyuki; Álvarez, V Víctor Hugo; Lani, José Antônio

doi:10.1080/01904160701741990

Cited by 20 publications

(36 citation statements)

References 7 publications

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“…Por outro lado os teores de Na (Figura 2E ) nas folhas e raízes aumentaram linearmente em função da salinidade da água de irrigação. Em condições normais de cultivo uma planta de cafeeiro conilon, com seis anos de idade, acumula cerca de 250 g planta -1 de N, e deste total acumulado 29% são alocados nas folhas e 20% nas raízes (Bragança et al, 2008). Nesse sentido, observando a concentração de N na Tabela 2 nota-se que realmente houve uma maior alocação deste nutriente nas folhas.…”

Section: Resultsunclassified

“…Observando a concentração de P na Tabela 2 nota-se que não houve diferenças na alocação deste nutriente nas folhas e nas raízes, no entanto, em plantas de cafeeiro conilon 24% de P são alocados nas folhas e 15% nas raízes (Bragança et al, 2008). Por outro lado, a concentração foliar de P está abaixo daquela considerada com a adequada para a cultura (0,12 -0,16 dag kg -1 ) em fase produtiva, conforme descrito por Costa & Bragança (2000).…”

Section: Resultsunclassified

“…No entanto, em plantas de cafeeiro conilon a maior parte do K acumulado ocorre nas folhas (40,53%) do que nas raízes (18,91%) (Bragança et al, 2008). Por outro lado, a concentração foliar de P está abaixo daquela considerada com a adequada para a cultura (2,0-2,5 dag kg -1 ) em fase produtiva, conforme descrito por Costa & Bragança (2000).…”

Section: Resultsunclassified

“…A maior concentração de Ca nas folhas (Tabela 2) demonstra uma maior alocação deste nutriente na parte aérea das plantas estando de acordo com Bragança et al (2008) onde 71,15% do Ca são alocados nas folhas e 19,71% nas raízes. Por outro lado, a concentração foliar de Ca está dentro da faixa considerada com a adequada para a cultura (1,0 -1,5 dag kg -1 ) em fase produtiva, conforme descrito por Costa & Bragança (2000).…”

Section: Resultsunclassified

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Nutrição Do Cafeeiro Conilon Irrigado Com Água Salina

Garcia¹,

Nazário²,

Gonçalves³

et al. 2012

R_I

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4Eng. Agrônomo, Mestre em Produção Vegetal, CCAUFES, Alegre, ES, ivo_zution@yahoo.com.br 5 Eng. Agrônomo, Mestre em Produção Vegetal, CCAUFES, Alegre, ES, joaocarlosagr@hotmail.com 6 Eng. Agrônomo, D.S., Prof. do Depto. de Produção Vegetal, CCAUFES, Alegre, ES, jata@cca.ufes.br RESUMOObjetivando avaliar a nutrição em mudas do cafeeiro conilon variedade robusta decorrentes da irrigação com água salina foi conduzido um experimento em casa de vegetação, montado no delineamento inteiramente casualizado com cinco tratamentos constituídos de um irrigado com água doce e quatro com água salina nas concentrações de 1,0; 2,0; 3,0 e 4,0 dS m -1 com quatro repetições. Para avaliar os efeitos da salinidade sobre a nutrição do cafeeiro foi realizada uma análise nutricional determinando os teores foliares e nas raízes de N, P, K, Ca, Mg, S e Na aos 125 dias após o plantio das mudas. Com os resultados obtidos verificou-se que a irrigação com água salina elevou os teores de Na nas folhas e raízes; proporcionou maiores teores N, Ca e Na nas folhas, K, Mg e S nas raízes, enquanto que a concentração de P não diferiu. Palavras-chave:Estresse salino. Nutrição mineral. Coffea canephora Pierre. GARCIA, G. de O.; NAZÁRIO, A. A.; GONÇALVES, I. Z.; MADALÃO, J. C.; AMARAL, J. A. T. do. NUTRITION OF COFFEE CONILON IRRIGATED WITH SALINE WATER. ABSTRACTIn order to evaluate nutrition of seedlings conilon coffee under irrigation with saline water an experiment was conducted in a greenhouse, in a completely randomized design with five treatments consisted of irrigation with fresh water and irrigation with four concentrations of saline water: 1.0, 2.0, 3.0 and 4.0 dS m -1 , with four replications. To evaluate the effects of salinity on coffee tree's a nutrition analysis was performed by determining the nutritional content in leaves and roots of N, P, K, Ca, Mg, S and Na, at 125 days after planting. The results obtained showed that irrigation with saline water increased the levels of Na in leaves and roots; resulting in higher levels of N, Ca and Na in the leaves, and of K, Mg and S in the roots; the concentration of P did not differ.

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Nutrição Do Cafeeiro Conilon Irrigado Com Água Salina

Garcia¹,

Nazário²,

Gonçalves³

et al. 2012

R_I

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“…Ca is the second nutrient that is most accumulated by 'Conilon' coffee trees (Bragança et al, 2008) and, like Mg, it is usually provided by liming. However, Ramírez et al (2002) Sulphur was sigmoidally accumulated, and the highest rates were observed at the early stages of fruit formation.…”

Section: Resultsmentioning

confidence: 99%

Dry matter and macronutrient accumulation in fruits of Conilon coffee with different ripening cycles

Partelli

Espindula

Marré

et al. 2014

Rev. Bras. Ciênc. Solo

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SUMMARYThe period between anthesis and fruit ripening varies according to the Conilon coffee (Coffea canephora) genotype. Therefore, the time of the nutritional requirements for fruit formation may differ, depending on the formation phase and the genotype, and may directly affect split application of fertilizer. The aim of this study was to quantify the accumulation of dry matter and N, P, K, Ca, Mg and S at several stages in the fruit of the Conilon coffee genotype with different ripening cycles, which may suggest the need for split application of fertilizer in coffee. The experiment was carried out in the municipality of Nova Venecia, Espírito Santo, Brazil, throughout the reproductive cycle. The treatments were composed of four coffee genotypes with different ripening cycles. A completely randomised experimental design was used. with five replicates. Plagiotropic branches were harvested from flowering to fruit ripening at 28-day intervals to determine the dry matter of the fruits and the concentration and accumulation of the nutrients they contained. The behavior of dry matter and macronutrient accumulation during the study period was similar and increasing, but it differed among genotypes sampled in the same season. Early genotypes exhibited a higher speed of dry matter and nutrient accumulation. Split application of fertilizer should differ among coffee genotypes with different ripening cycles (early, intermediate, late and very late).Index terms: Coffea canephora, genotypes, maturation cycle, fertilization management.(

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Magnesium oxide nanoparticles and their ecotoxicological effect on edaphic organisms in tropical soil

Ogliari

Borges

Silva

et al. 2021

J of Applied Toxicology

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The demand for food has intensified production in agricultural areas and stimulated the use of nanotechnology to develop new inputs, especially nanoparticle materials. In this new context, predicting the impact of using nanoparticles on non‐target organisms becomes a necessary measure. The aim of this study was to evaluate the ecotoxicological potential of magnesium (Mg2+) added via magnesium oxide nanoparticles (MgO‐NPs), magnesium oxide (MgO), and magnesium nitrate hexahydrate (Mg [NO3]2·6H2O) incubated over time in tropical soil on earthworms (Eisenia andrei), springtails (Folsomia candida), and enchytraeids (Enchytraeus crypticus). Tests were conducted using a clay‐textured Latossolo Vermelho distrófico (Oxisol), which received increasing doses of Mg2+ (0; 25; 50; 100; 200 and 400 mg kg−1 of soil) from the three sources tested added to the soil. Treated soil was incubated for 120 days in a room with controlled temperature and photoperiod, and the ecotoxicological tests were performed at 0, 60, and 120 days of incubation. Despite having caused reduction in the reproduction of F. candida at the incubation time 0, MgO‐NPs showed a low toxic potential against the other species studied, with toxicity only at a higher dose of 50 mg Mg kg−1 when compared to the other sources of Mg2+ applied to the soil (MgO and Mg [NO3]2·6H2O). Responses associated with incubation times showed that all magnesium sources tested have lower toxicity over incubation time.

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Accumulation of Macronutrients for the Conilon Coffee Tree

Cited by 20 publications

References 7 publications

Nutrição Do Cafeeiro Conilon Irrigado Com Água Salina

Nutrição Do Cafeeiro Conilon Irrigado Com Água Salina

Dry matter and macronutrient accumulation in fruits of Conilon coffee with different ripening cycles

Magnesium oxide nanoparticles and their ecotoxicological effect on edaphic organisms in tropical soil

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