Changes of Nutritional Status during a Phenological Cycle of Coffee under High Nitrogen Supply by Fertigation

Neto, Ana Paula; Favarin, José Laércio; Almeida, Rodrigo Estevam Munhoz de; Dias, Carlos Tadeu dos Santos; Tezotto, Tiago; Alves, André F.; Moraes, Milton Ferreira de

doi:10.1080/00103624.2011.607731

Cited by 19 publications

(17 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1). Part of the N also may have come from the mineralization of the N present in the soil, suggested by the increased N concentration even before this nutrient was applied (Neto et al 2011). Another explanation for the increased N concentration during anthesis can be redistribution of nitrogenated compounds from other organs, such as roots, stem, and branches, which store compounds in the winter that are redistributed at the start of the rainy season (Reis et al 2009(Reis et al , 2011.…”

Section: Discussionmentioning

confidence: 99%

“…The high vegetative growth and yield occur primarily because of the greater number of sunlight hours due to less cloudiness, and average temperatures around 20°C in the months of autumn and winter. This temperature above that of traditional cultivation regions (Neto et al 2011), might provide better physiological conditions for growth.…”

Section: Introductionmentioning

confidence: 95%

“…In the last decade coffee (Coffea arabica L.) cultivation has expanded to marginal areas such as Western Bahia State, Brazil, with an irregular rainfall distribution throughout the year. This region presents a smooth topography, which facilitates the adoption of high technology such as center pivot sprinkler irrigation (Neto et al 2011). Coffee plants of this region have high rates of vegetative growth and productivity index averaged 2,400-3,600 kg ha -1 per year (CO-NAB 2010;Neto et al 2011) and 600-800 kg ha -1 N as urea applied to maintain this productivity.…”

Section: Introductionmentioning

confidence: 99%

“…This region presents a smooth topography, which facilitates the adoption of high technology such as center pivot sprinkler irrigation (Neto et al 2011). Coffee plants of this region have high rates of vegetative growth and productivity index averaged 2,400-3,600 kg ha -1 per year (CO-NAB 2010;Neto et al 2011) and 600-800 kg ha -1 N as urea applied to maintain this productivity. The high vegetative growth and yield occur primarily because of the greater number of sunlight hours due to less cloudiness, and average temperatures around 20°C in the months of autumn and winter.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nitrogen metabolism in coffee plants in response to nitrogen supply by fertigation

Neto

Favarin

Reis

et al. 2014

Theor. Exp. Plant Physiol.

Self Cite

View full text Add to dashboard Cite

Coffee plants require high application rates of nitrogen (N) to produce coffee beans. However, information regarding plant N uptake and assimilation under intensive high-technology cultivation systems is scarce, a situation which restrains the maximizing productivity with minimal N rates. The aim of this study was to evaluate N assimilation enzymes such as nitrate reductase (EC 1.6.6.1), glutamine synthetase (EC 6.3.1.2), urease (EC 3.5.1.5), and N compounds of coffee plants during a phenological cycle in response to N applied by fertigation. Our study was carried out with 7-year-old trees of Coffea arabica L., under a center pivot sprinkler irrigation and fertigation system, with five N rates (0, 200, 400, 600, and 800 kg ha-1) applied to the coffee field. The results of the present study suggest that both N metabolism enzymes, and the content of nitrate and ammonium in coffee were directly related to the phenological cycle. The N fertigation rates are correlated with the N and amino acid contente. Nitrate reductase and urease showed higher activities before anthesis and during grain filling. Glutamine synthetase showed highest activities during rapid grain expansion. The data also indicate that there is merit in gaining greater understanding of N metabolism in coffee plants grown under high-intensive systems. There is therefore merit in conducting further research on how monitoring the N assimilation enzymes might be used to improve fertilizer management of coffee in commercial orchards.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nitrogen metabolism in coffee plants in response to nitrogen supply by fertigation

Neto

Favarin

Reis

et al. 2014

Theor. Exp. Plant Physiol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Coffee growers in this region have been using nitrogen (N) rates (of the order of 600 -800 kg ha -1 year -1 of N) far above those applied in other coffee producing areas (150 -450 kg ha -1 year -1 of N) (FAO, 2010;Bortolotto et al, 2011;Bruno et al, 2011;Neto et al, 2011). Without any scientific basis for these excessively high N application rates, losses to the environment are likely to be occurring (Milroy et al, 2008;Sitthaphanit et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Nitrate leaching through climatologic water balance in a fertigated coffee plantation

et al. 2013

View full text Add to dashboard Cite

RESUMO Lixiviação de nitrato por meio do balanço hídrico climatológico na cultura de café fertirrigadaAs perdas de nitrato no perfil do solo por lixiviação devem ser monitoradas preferencialmente em ocasiões de altas precipitações pluviométricas e irrigações quando o uso de insumos nitrogenados é elevado. Foi utilizado o balanço hídrico climatológico empregando os modelos de Thornthwaite e Penman Monteith na obtenção da estimativa de evapotranspiração potencial para calcular os fluxos de drenagem de água abaixo da zona de raiz em lavoura de café fertirrigada. A extração da solução do solo a uma profundidade de 1 m permitiu o cálculo do nitrato lixiviado. A concentração de nitrato na solução do solo nas parcelas que receberam 400 kg ha Nitrate losses from soil profiles by leaching should preferentially be monitored during high rainfall events and during irrigation when fertilizer nitrogen applications are elevated. Using a climatologic water balance, based on the models of Thornthwaite and Penman Monteith for potential evapotranspiration, drainage soil water fluxes below the root zone were estimated in a fertigated coffee crop. Soil solution extraction at the depth of 1 m allowed the calculation of nitrate leaching. The average nitrate concentration in soil solution for plots that received nitrogen by fertigation at a rate of 400 kg ha , surpassing the limit of the Brazilian legislation of 10.0 mg L -1 , only during one month. For plots receiving 800 kg ha -1 of nitrogen, the average was 25.01 mg L -1 , 2.5 times higher than the abovementioned limit. This information indicates that nitrogen rates higher than 400 kg ha -1 are potentially polluting the ground water. Yearly nitrate amounts of leaching were 24.2 and 153.0 kg ha -1 for the nitrogen rates of 400 and 800 kg ha -1 , respectively. The six times higher loss indicates a cost/benefit problem for coffee fertigations above 400 kg ha -1 .

show abstract

Root architecture, root biomass and nutrient cycling in a mixed‐species agroforestry system

Bai,

Muqaddas,

Trueman

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

Understanding root development in soil profiles of agroforestry systems is challenging. It is uncertain to what extent the proximity of cash crops, such as cocoa and coffee, to shade trees reduces nutrient concentrations in the topsoil and whether the cash crops continue to develop fine roots in the topsoil when they are planted in close proximity to shade trees. We aimed to investigate micro‐ and macro‐nutrient concentrations in the soil profile and understand root architecture using a novel DNA metabarcoding approach in an agroforestry system where cocoa and coffee were interplanted with a shade tree, canarium. Soil and root samples were collected from (1) cocoa‐only, (2) cocoa‐canarium, (3) canarium‐only positions in a cocoa plantation, (4) coffee‐only, (5) coffee‐canarium and (6) canarium‐only positions in a coffee plantation. Proximity of shade trees did not limit nutrient concentrations for cash crops. Topsoil concentrations of total N (TN: 0.59% and 0.69%), phosphorus (P: 7.28 and 6.65 mg/kg), potassium (K: 360 and 755 mg/kg) and calcium (Ca: 1865 and 1044 mg/kg) under cocoa and coffee trees, respectively, did not differ significantly from those under the corresponding canarium trees. Soil TN, K and Ca concentrations were well above minimum required concentrations under both cocoa and coffee. DNA metabarcoding showed that canarium trees occupied deeper rooting zones (30–80 cm soil depth) than cocoa and coffee trees (0–30 cm soil depth). DNA metabarcoding demonstrated greater root colonisation of the topsoil by cocoa and coffee than canarium, suggesting that canarium had the potential to extract nutrients from deeper soil layers. Soil Ca concentrations were associated with cocoa root biomass whereas soil NO3−‐N concentrations were associated with coffee root biomass. Our study highlighted the value of selecting suitable shade trees that maintain soil nutrient concentrations for cash crops. Furthermore, DNA metabarcoding can facilitate root distribution studies in complex agroforestry systems, thus providing insights into appropriate tree‐planting designs.

show abstract

Changes of Nutritional Status during a Phenological Cycle of Coffee under High Nitrogen Supply by Fertigation

Cited by 19 publications

References 12 publications

Nitrogen metabolism in coffee plants in response to nitrogen supply by fertigation

Nitrogen metabolism in coffee plants in response to nitrogen supply by fertigation

Nitrate leaching through climatologic water balance in a fertigated coffee plantation

Root architecture, root biomass and nutrient cycling in a mixed‐species agroforestry system

Contact Info

Product

Resources

About