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Soil chemical properties and nutrition of conilon coffee fertilized with molybd...
Rosado, Thiago Lopes; Freitas, Marta Simone Mendonça; Carvalho, Almy Junior Cordeiro; Gontijo, Ivoney; Pires, André Assis; Vieira, Henrique DuarteMolybdenum (Mo) availability is strongly affected by soil pH, which determines the dynamics of electrical charges and the adsorption of molybdate. This study evaluated the effects of nitrogen (N) and Mo application on the chemical properties of a Latossolo Amarelo (Oxisol) and in Coffea canephora nutrition and productivity throughout two productive cycles under field conditions. The experiment was conducted fro...
Sorghum seed coating with zinc: Physiological quality and initial performance o...
Batista, Vanessa Aparecida Pereira; Vieira, Henrique Duarte; Pires, José Inácio Coelho; Acha, Amanda JustinoSorghum (Sorghum bicolor) is highly sensitive to zinc deficiency in soils, which results in decreased productivity and low-quality agricultural products. Our objective was to evaluate the effects of different zinc doses, applied to seeds, on the physiological quality and initial performance of sorghum plants. Six doses (0, 3.5, 7.0, 14.0, 21.0, and 28.0 g kg-1 seeds) were used and an uncoated control. The Zn co...
Physical-physiological quality and early performance of sorghum plants under di...
Batista, Vanessa Aparecida Pereira; Vieira, Henrique Duarte; Pires, José Inácio Coelho; Correia, Laísa ZanelatoBoron (B) deficiency is commonly found in tropical crops, among which sorghum stands out for its limited yield under B shortage. However, as a micronutrient, the range between its adequate and toxic levels is narrow, thus fertilization should be cautiously applied. Our goal was to evaluate the physiological and physical quality, as well as early performance, of grain sorghum seedlings under different B doses ap...
Effect of packaging materials and storage environment on fennel seedling growth
Rubim, Raquel Fialho; Freitas, Silvério de Paiva; Vieira, Henrique Duarte; Oliveira, Anna Christina Sanazário de; Lemos, Gloria Cristina da SilvaThe objective of the present study was to assess the influence of the packaging material (cotton cloth bag, multifolium paper and glass container) and storage environment (laboratory and cold chamber conditions) on fennel seedling growth. Seeds were placed in different packaging materials and exposed to the two environments for twelve months. Assessments were made before storage and at every two months and the ...
Average time of dispersal and germination of Fabaceae seeds retrieved from goat...
Silva, Tatiana Oliveira da; Vieira, Henrique Duarte; Deminicis, Bruno Borges; Rocha, Norberto Silva; Lima, Renata Vianna; Glória, Leonardo SiqueiraThis study aimed to evaluate the viability of seeds of butterfly pea, stylosanthes cv. Campo Grande, tropical kudzu and archer after passage through the gastrointestinal tract (GIT) of goats; and to evaluate these animals as dispersing agents. Fifty grams of seeds of each plant were mixed with the concentrate and given to 20 goats, whose feces were collected up to 102 hours after ingestion for seed retrieval an...
Multivariate statistical applied to data costs post-harvest coffee
Santos, Rafael Vargas; Vieira, Henrique Duarte; Borém, Flávio Meira; Prado, Mariele Vilela BernardesThe choice of method of processing coffee is decisive on the profitability of the coffee activity, and will depend on several factors. Thus, due to the existence of many variables is common producer to question the viability of certain types of processing. Thus, the objective in this research was carried out a study of the major influencing factors on the cost of post-harvest coffee. Forty-six farms in the regi...
Developmentscenarios using decision support system for cost of post-harvest pha...
Santos, Rafael Vargas; Vieira, Henrique Duarte; Flávio, Borém MeiraThe choice of method of processing coffee is decisive on the profitability of the coffee activity, and will depend on several factors. Thus, due to the existence of many variables is common producer ask about the viability of certain types of processing. Thus, the objective of this study was to detail the proposed processing alternative to two farms more profitable. Forty-six farms in the regions of the Cerrado...
A decision support system to aid the calculation of the cost of the post-harves...
Santos, Rafael Vargas Mesquita; Vieira, Henrique Duarte; Borém, Flávio Meira; Isquierdo, Eder PedrozaVarious computer programs were developed to calculate the cost of the coffee harvest. However, few address the costs of coffee in its post-harvest stage. This study was aimed to develop a system for calculating the cost of the coffee postharvest to facilitate decision making regarding the most cost-effective post-harvest processes. Thirty-four farmers in southern Minas Gerais state answered a questionnaire desi...
Efect of draft an Meloidogyne exigua (Nemata) infestation on coffee's root grow...
Barbosa, Dimmy Herllen Silveira Gomes; Vieira, Henrique Duarte; Rodrigues, Weverton Pereira; Filho, Júlio Cézar Rodrigues; Barroso, Deborah GuerraThe State of Rio de Janeiro was once the main coffee producer in Brazil, but the infestation of nematodes (Meloidogyne exigua) has caused the production decline since the nineteenth century. The use of resistant cultivars is the main measure nematode control, and the resistant genotypes can be used both grafted or not. Coffea canephora is nematode resistant and it has a more developed root system compared to C....
Comparatuve analysis of infrastruture for processing using a decision support s...
Santos, Rafael Vargas; Vieira, Henrique Duarte; Borém, Flávio Meira; Isquierdo, Eder PedrozaThe infrastructure sizing for processing the coffee is decisive in the profitability of coffee, and will depend onseveral factors. Thus, due to the existence of so many variables it is common to underestimate or overestimate producer aspects of infrastructure. The objective of this work related to the area of yard aspects of infrastructure and capacity of the dryers farms was analyzed in the post-harvest coffee...