The use of unmanned aerial systems (UAS) as remote-sensing platforms has tremendous potential for obtaining detailed, site-specific descriptions crop features, which would be very useful precision agriculture. In sugarcane plantations, example, cane height can an indicator yield and other parameters because it is highly influenced by the soil, total sugar content, leaf nitrogen temperature light intensity. This article describes generation surface models (CSMs) from high-resolution images...

The use of remote-sensing technology has been studied as a way to make the monitoring agricultural crops more efficient, dynamic, and reliable. data from Moderate Resolution Imaging Spectroradiometer (MODIS) proved be an interesting tool regarding mapping large areas, however, some challenges still need addressed. One these is identification specific types crops, especially when they have similar phenologies. purpose this study was perform discrimination soya bean corn in state Paraná,...

In Brazil, the main biofuel crop is sugarcane, and with its rapid expansion, there much debate about what land uses covers it replacing, are associated environmental social impacts. Some argue sugarcane mainly replacing cattle pasture, thus having minimal impacts on native vegetation small-scale family farming. contrast, others claim cropland traditionally under soybeans, rice, beans, corn. Thus, food security negatively affected farming livelihoods culture threatened. This a...

Methods of performance evaluation for the supervised classification satellite imagery in determining land cover classes.Cien.Inv.Agr.40(2

Vegetation Indices are important for agricultural monitoring and the assessment of biophysical attributes different crops. In this context, objective study was to evaluate relationships between normalized difference vegetation indices (NDVIs) obtained by terrestrial remote sensors (active passive), with respect aspects soybeans beans. With NDVI GS (GreenSeeker 505 handheld active sensor), it possible obtain a better leaf area index height estimate both crops, as well chlorophyll soybeans....

In the current study, we performed a soybean production spatial distribution analysis in Paraná State. Seven crop-year data, from 2003-04 to 2009-10, obtained Department of Agriculture and Supply (SEAB) were used develop Boxmap for each crop-year, show throughout this time interval. Moran's index was measure autocorrelation among municipalities at an aggregate level, while LISA local correlation. For index, different contiguity matrix order there significance level study. As result, have...

Satellite imagery, in combination with remote sensing techniques, provides a new opportunity for monitoring and assessing crops lower cost greater objectivity than traditional surveys. The present research employed Landsat 5/TM satellite imagery to identify the land cover classes Cafelândia (Parana, Brasil), predominantly agricultural town. Five supervised classification methods (parallelepiped (PL), minimum distance (MND), Mahalanobis (MHD), maximum likelihood classifier (MLC) spectral...

O efluente oriundo da suinocultura tem sido aplicado no solo com o intuito de promover a ciclagem nutrientes e como uma saída à disposição final desses efluentes, sem controle, em corpos hídricos. Entretanto, reúso efluentes nas mais diversas culturas preocupa relação possibilidade gerar impactos ambientais e, consequentemente, saúde população. nabo forrageiro (Raphanus sativus L.) é cultura utilizada adubo verde inverno plantio direto pode ser usado para produção biodiesel, sendo exigente...

Proximal sensors have been used to characterize the crop biophysical properties by reflectance values and/or using Vegetation Indices (IV). Our goal with this work is compare NDVI (Normalized Difference Index) spectra-temporal profiles obtained active (GreenSeeker 505 Handheld) and passive (FieldSpec4 model Standard-Res) proximal monitor soybeans beans. It was monitored agricultural fields Nidera 5909RG variety beans Imperador variety, located in municipality of Cascavel, Parana state,...

The use of effective technologies for the monitoring agricultural crops should seek methodologies that provide information regarding crop development, preferably before harvesting. study and/or estimation areas using vegetation indices derived from multitemporal data MODIS sensors is being studied in search greater objectivity generated values. In this context, objective was to map with winter and second-crop corn EVI/MODIS time series Terra Aqua satellites, seasons 2012 2014...

SAR as an active remote sensing technique is capable of providing insights into the physical features agricultural vegetation. However, noisy nature signals makes direct conversion to effective productivity metrics challenging. This study sheds light on effect gaps present in a sugarcane field L-band and C-band demonstrates variability this with changing spatial averaging windows, precipitation conditions vegetation height.

In the burning process of sugarcane bagasse, creation ashes occurs, which are later allocated in large courtyards. The correct destination this residue is great environmental importance. Sugarcane bagasse ash (SCBA) predominantly composed silicon dioxide, that due to their physical-chemical characteristics provide pozzolanic properties material. Thus, it hypothesized can be used as a raw material partial replacement Portland cement for mortars and concretes production. present study aimed...