8 documents found, page 1 of 1
Incidence of the phoma leaf blight in drip irrigated coffee trees under differe...
Santos, Leone Stabile Dias; Pozza, Edson Apélio; Faria, Manoel Alves de; Silva, Mirian de Lourdes Oliveira e; Custódio, Adriano Augusto de PaivaThe knowledge that the disposition of the crop and the irrigation management affect the microclimatic conditions is of importance for the sampling and quantification of diseases, assisting in the achievement of a better management of the crop. This work aimed at evaluating the influence of drip irrigation management in the incidence of phoma leaf blight (Phoma tarda (R.W. Stewart) H. Verm.) on coffee trees, reg...
Leaf area index, plant density and water management of coffee
Rezende, Fátima Conceição; Dias Caldas, André Luiz; Scalco, Myriane Stella; Faria, Manoel Alves deWater stress can affect the canopy architecture, the use of radiation and reduce leaf area index. The leaf area index is a parameter that is a directly related to evapotanspiration. Was evaluated the leaf area index of coffee in a function of tillage system and irrigation management in a orchard of coffee, cv. Rubi MG-1192, drip irrigation. A randomized block experimental design with split-plot (density in plot...
Spatial variability of pH in coffee plants under fertigation and traditional sy...
Rezende, Fátima Conceição; Ribeiro, Victor Barbiere; Ávila, Leo Fernandes; Faria, Manoel Alves de; Silva, Elio Lemos daThe objective of this study was to characterize the soil pH in function of chemical fertilizing through irrigation, andmanually, under the canopy. The crop was drip irrigated during the whole year when water soil tension was 21 kPa. The depth of waterwas defined based on the average reading of soil water potential at 0.10 and 0.30m depths. Soil solution extractors were installed atdepths of 0.10, 0.20, 0.30, 0....
The leaf-miner (Leucoptera coffeella) incidence in coffee culture (Coffea arabi...
Custódio, Anselmo Augusto de Paiva; Moraes, Jair Campos; Custódio, Adriano Augusto de Paiva; Lima, Luiz Antônio; Faria, Manoel Alves deThe leaf-miner (LM) [Leucoptera coffeella (Guérin-Menéville & Perrottet, 1842) (Lepidoptera: Lyonetiidae)] is one of the most powerful parasites for the coffee plants (Coffea arabica L.), being responsible for high economic losses to coffee farmers. In the last years, the adoption of irrigation systems has been becoming a common practice in Brazilian coffee farms, mainly center pivot irrigatio...
Leaf water potential effects on coffee (Coffea arabica, L.) plant flowering ind...
Rezende, Fátima Conceição; Faria, Manoel Alves de; Miranda, Weser LismarAn experiment was carried out in Lavras/MG aiming to correlate the leaf water potential with flowering and yields from coffee (Coffea arabica, L.) Cv. Topazio, MG-1190 that was submitted to a severe pruning 65 months after planting. The orchard was implanted in a 1.8 X 0.7m spacing and was drip irrigated. A complete randomized experimental design with six treatments and four replications was implemented. Treatm...
Recovery of coffee tree (Coffea Arabica L.) after pruning under different irrig...
Arantes, Kelte Resende; Faria, Manoel Alves de; Rezende, Fátima ConceiçãoIn order to reduce the recovery period of the orchard coffee after pruning, this work was carried out with the objective of evaluating the influence of different irrigation depths and splitting of N and K with fertirrigation on the growth of coffee plants. The experiment was carried out in southern Minas Gerais State with coffea Arabica cv. Topázio MG-1190 implanted with 1.8 x 0.7 m spacing. Irrigations corresp...
Bean yield response to conventional sprinkler irrigation uniformity
Rezende, Roberto; Gonçalves, Antonio Carlos Andrade; Frizzone, José Antonio; Faria, Manoel Alves deSprinkler irrigation uniformity effects on bean yield was evaluated using some production variables. Four sprinkler spacing were adopted to irrigate the crop, resulting in four uniformity levels. The number of pods per plant, the number of grain per pod, the mass of hundred grains and crop yield was measured. The maximum application uniformity did not result in higher values of these variables; O efeito da unif...
Productivity characteristics of pruned drip irrigated arabica coffee plants (Co...
Rezende, Fátima Conceição; Oliveira, Sérgio dos Reis; Faria, Manoel Alves de; Arantes, Kelte ResendeIrrigated coffee crop (Coffea arabica L.) studies are quite common but almost no information is available on pruned irrigated coffee crops. This work reports studies carried out in Lavras, Minas Geais, Brazil to evaluate the total yield, volumetric yield, beans ripening uniformity, beans size and defects on several irrigation laminas. Coffee plants (cv. Topázio MG-1190) eavely pruned after 65 months from...