6 documents found, page 1 of 1
Plant sampling grid determination in precision agriculture in coffee field
Ferraz, Gabriel Araújo e Silva; de Oliveira, Marcelo Silva; da Silva, Fábio Moreira; Sales, Ronan Souza; Carvalho, Luis Carlos CiriloThe aim of the present study was to evaluate different grid samples applied to plant properties of a coffee plantation by using precision coffee growing and geostatistical techniques. The study was performed at the Brejão Farm in the municipality of Três Pontas, MG, Brazil, using productivity, the maturation index and the detachment force difference, sampled at georeferenced points. With the intention of choosi...
Meteorological variables and soil moisture in the detachment force coffee fruit
da Silva, Flávio Castro; da Silva, Fábio Moreira; Sales, Ronan Souza; Ferraz, Gabriel Araújo e Silva; de Barros, Murilo MachadoThis study aimed to identify whether climatic and soil moisture variables are related with the variation of detachment force coffee fruits (Coffea arabica L.) during the crop harvest period. The research was carried out at Departamento de Agricultura at Universidade Federal de Lavras (UFLA) trying to analyze the behavior of detachment force coffee fruits in green and cherry maturation throughout the crop harves...
Correlation detachment coffee force fruit under different conditions nutrition
da Silva, Flávio Castro; da Silva, Fábio Moreira; Scalco, Myriane Stella; Sales, Ronan SouzaThe coffee yield is strongly influenced by adequate supply of water and nutrients to plants. Because not all soil is the ideal amount of nutrients for plant growth, fertilization is intended to supplement these nutrients. The nole of fertigation is to provide coffee the water volume to be supplied with nutrients and preventing entering the plant water stress and nutrition. This study was carried out in the expe...
Efficiency Efficiency of coffee mechanical and selective harvesting in differen...
da Silva, Flávio Castro; da Silva, Fábio Moreira; Alves, Marcelo de Carvalho; e Silva Ferraz, Gabriel Araújo; Sales, Ronan SouzaThe aim of the present work was to assess the operating performance of mechanical harvesting of the fruit of coffee trees (Coffea arabica L.) with a KTR® Advance harvester using a “neuro-fuzzy” system which considered the variation of the vibration of the rods and the maturation index of the fruit. The evaluations were carried out fortnightly for 70 days in treatments with vibration levels of 13.33, 15.00 and 1...
Doses of noise to whom are subject operators portable harvester coffee
Sales, Ronan Souza; Silva, Fábio Moreira da; Silva, Flávio Castro daThe harvest of coffee (Coffea arabica L.) is a costly process that demands high cost labor , increasingly scarce and the mechanization process a way for the farmer to remain in the activity . The objective of this study was to analyze the noise dose to which they are exposed operators portable harvester. The experiment was carried out in a coffee plantation of Catuaí Amarelo 62. For the experiment we used two p...
Spatial vatiability of the dosage of P2O5 and K2O tofertilize in variable rate ...
Ferraz, Gabriel Araújo e Silva; da Silva, Fábio Moreira; de Oliveira, Marcelo Silva; Avelar, Rogner Carvalho; Sales, Ronan SouzaFewer studies have been conducted on the spatial variability of inputs dosage in crop field, mainly when it has been performed the comparison between conventional management and precision agriculture management in coffee crop.The aim of this article was to characterize the structure and magnitude of the spatial distribution of soil chemical attributes, and the recommendation of fertilizer application on a coffe...