Encontrados 13 documentos, a visualizar página 1 de 2
Variabilidade espacial de atributos físicos do solo e características agronômic...
Carvalho, Luis Carlos Cirilo; Da Silva, Fábio Moreira; Ferraz, Gabriel Araújo e Silva; da Silva, Flávio Castro; Stracieri, Juliana [UNESP]Made available in DSpace on 2022-04-29T07:13:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-01; Precision agriculture differs from the conventional by uniting spatial relationships to the variability in the field, becoming an important management tool of the agricultural systems. Thus, the present study aimed to evaluate, by classical statistics, geoestatistics and principles of precision agricult...
Aerial images to monitor grapevine vegetative growth
Pereira, Janielle Souza; Ferraz, Gabriel Araújo e Silva; Santana, Lucas SantosImages obtained by Remotely Piloted Aircraft (RPA) used to monitor the crop can help evaluate leaf mass, plant formation, and plant population. In this context, the objectives of this study were to analyze plant growth in a grapevine crop trained in the trellis system, detect failures and determine the plant covered area using images obtained by RPA. The flight was parameterized with frontal overlap of 75%, lat...
Statistical process control and geostatistics on the characterization of the no...
Silva, Fabiano Battermarco da; Ferraz, Gabriel Araújo e Silva; Cunha, João Paulo Barreto; Marin, Diego Bedin; Santana, Lucas SantosWorkers in their labor activities may be subject to operational risks, such as noise. The objective of this work was to use geostatistics and Statistical Process Control (SPC) through individual charts to map and characterize the magnitude of the spatial variability of noise produced by a backhoe, to identify areas of health for workers. The experiment was developed at the technical college of the Federal Rural...
Spatial variability of chlorophyll content in a Tifton 85 bermudagrass pasture ...
Jacintho, João Luiz; Ferraz, Gabriel Araújo e Silva; Barbosa, Brenon Diennevan Souza; Ferraz, Patrícia Ferreira Ponciano; Santos, Sthéfany Airane dosPrecision Agriculture techniques, such as the management of spatial variability of crop attributes, have been studied for several crops. However, few studies have been performed on Tifton 85 bermudagrass. Thus, this work aimed to analyse the spatial variability of chlorophyll content in a Tifton 85 bermudagrass production area, located in Seropédica, Brazil. A georeferenced grid was created to measure the chlor...
AVALIAÇÃO DO NÍVEL DE RUÍDO EMITIDO POR UM TRATOR AGRÍCOLA ACOPLADO A UMA COLHE...
Damasceno, Flavio Alves; Soares, Cláudio Magela; Oliveira, Carlos Eduardo Alves; Ferraz, Gabriel Araújo e Silva; Saraz, Jairo Alexander OsorioObjetivou-se com o presente trabalho avaliar e comparar o nível de ruído emitido por um trator acoplado a uma colhedora de milho durante a operação agrícola em diferentes rotações do motor, visando identificar zonas de salubridade para os trabalhadores. O experimento foi conduzido no município de Corumbá de Goiás-GO, durante o período de colheita de milho, em julho de 2015. Os dados de nível de ruído foram cole...
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...
Comparison between the soil chemical atributes sampled conventionaly and in grid
Ferraz, Gabriel Araújo e Silva; Silva, Fábio Moreira da; Oliveira, Marcelo Silva de; Silva, Flávio Castro da; Carvalho, Luis Carlos CiriloThe aim in this article was to characterize the structure and magnitude of the spatial distribution of soil attributes on a coffee field and map these attributes in order to identify the spatial dependence of them. It was aimed to compare the attribute amount when it was sampled conventionally or in grid sampling. This study was carried out on the Brejão farm in Três Pontas, Minas Gerais state, Brazil. As a dat...
Comparison of sampling leaf conventional and precision for micronutrients analy...
Carvalho, Luis Carlos Cirilo; Silva, Fábio Moreira da; Ferraz, Gabriel Araújo e Silva; Figueiredo, Vanessa Castro; Cunha, João Paulo BarretoOne of the technologies that has been outstanding for the management of crops is the precision of coffee growing. However, there are still many fears on the part of growers in their adoption due to the lack of information to justify its use, compared to the current conventional management. This study aimed to evaluate the spatial and temporal variability of micronutrients (Zn, Fe, Mn, Cu and B) obtained through...
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...
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...