Results 31 to 40 of about 12,571 (182)

The temporal stability of the variability in apparent soil electrical conductivity

Bioscience Journal, 2016
Apparent soil electrical conductivity (ECa) measurements can be used for crop management in precision agriculture. However, ECa is a soil attribute that presents spatial and temporal variability.
Wilker Nunes Medeiros, Daniel Marçal de Queiroz, Domingos Sárvio Magalhães Valente, Francisco de Assis de Carvalho Pinto, Christiane Augusta Diniz Melo   +4 more
doaj   +3 more sources

Avaliação da inclinação e exposição de telhado em diferentes materiais de cobertura em modelas reduzidos de instalações zootécnicas na primavera e verão [PDF]

, 2014
The present study was conducted at the Department of Rural Engineering and the Department of Animal Morphology and Physiology of FCAV/Unesp, Jaboticabal, SP, Brazil.
Furlan, Renato L., Buzanskas, Marcos E., Buzanskas, Marcos E. [UNESP], Furlan, Renato L. [UNESP], Mota, Diego A., Milani, Adhemar P. [UNESP], Melo, Thiago V., Milani, Adhemar P.   +7 more
core   +1 more source

Transplantio semi-mecanizado de mudas de tomate em função da velocidade de operação

Agro@mbiente On-line, 2015
O transplantio semi-mecanizado de mudas de tomate industrial tem se tornado uma alternativa viável para os produtores, visto que, o mesmo possibilita o aumento da capacidade operacional. Com o objetivo de se avaliar a influência da velocidade de operação
Túlio de Almeida Machado, Fábio Lúcio Santos, Domingos Sárvio Magalhães Valente, Haroldo Carlos Fernandes, João Paulo Barreto Cunha   +4 more
doaj   +1 more source

Produção de milho para silagem consorciado com forrageiras na integração lavoura-pecuária [PDF]

, 2014
Corn cropping for silage, due to the plant material exportation, intercropping with forage provides greater ground cover and straw formation for the Direct Planting System (DPS) continuity.
Pereira, Francisco C. B. L., Yano, Élcio H. [UNESP], Mello,Luiz M. M. de, Mendonça, Veridiana Z. De, Pereira, Francisco C. B. L. [UNESP], Silva,José O. da R., Mello, Luiz M. M. De [UNESP], Mendonça,Veridiana Z. de, Pereira,Francisco C. B. L., Yano,Élcio H., Yano, Élcio H., Mendonça, Veridiana Z. De [UNESP], Silva, José O. Da R. [UNESP], Mello, Luiz M. M. De, Silva, José O. Da R.   +14 more
core   +1 more source

Localized irrigation sand filters: theory and practice [PDF]

, 2015
The application of sand filters in localized irrigation systems is recommended in the presence of organic and algae contamination. The proper design and maintenance of these equipments are essential to assure an effective water quality control, in order ...
Testezlaf, Roberto
core   +1 more source

Colonization and Spore Richness of Arbuscular Mycorrhizal Fungi in Araucaria Nursery Seedlings in Curitiba, Brazil

International Journal of Agronomy, Volume 2018, Issue 1, 2018., 2018
Araucaria or Paraná pine [Araucaria angustifolia (Bertol.) Kuntze, 1898] is an endangered timber tree species of Atlantic Forest that naturally forms symbiosis with arbuscular mycorrhizal fungi (AMF). The objective of this experiment was to evaluate AMF colonization and spore AMF richness in araucaria seedlings produced in nursery at the metropolitan ...
Carlos Vilcatoma-Medina, Glaciela Kaschuk, Flávio Zanette, Mathias N. Andersen   +3 more
wiley   +1 more source

Mapeamento de culturas de verão no Estado do Paraná por meio de composições decendiais de NDVI do sensor spot vegetation [PDF]

, 2015
The search for low subjectivity area estimates has increased the use of remote sensing for agricultural monitoring and crop yield prediction, leading to more flexibility in data acquisition and lower costs comparing to traditional methods such as census ...
Lamparelli, Rubens A. C., Araújo, Gleyce K. D., Rocha, Agmon M., Rocha, Jansle V.   +3 more
core   +1 more source

Growth, Development, and Water Consumption of Irrigated Bean Crop Related to Growing Degree‐Days on Different Soil Tillage Systems in Southeast Brazil

International Journal of Agronomy, Volume 2016, Issue 1, 2016., 2016
Degree‐days may be an alternative for predicting the influence of temperature on physiological aspects of plants in a changing climate. The objective of this research was to evaluate the relation between cumulative degree‐days index (∑G) and the development, growth, and water consumption of irrigated bean under different soil tillage systems (STS).
Gerson Araujo de Medeiros, Luiz Antonio Daniel, Felipe Hashimoto Fengler, David Clay   +3 more
wiley   +1 more source

Técnicas de mineração de dados para identificação de áreas espectralmente homogêneas, utilizando perfis temporais de NDVI da cultura da soja no estado do Paraná [PDF]

, 2015
The aim of this study was to group temporal profiles of 10-day composites NDVI product by similarity, which was obtained by the SPOT Vegetation sensor, for municipalities with high soybean production in the state of Paraná, Brazil, in the 2005/2006 ...
Lamparelli, Rubens A. C., Rodrigues, Luiz H. A., Johann, Jerry A., Oliveira, Stanley R. de M., Rocha, Jansle V.   +4 more
core   +1 more source

USO DE FERRAMENTAS DA INTERNET NO ENSINO DO SENSORIAMENTO REMOTO NO CURSO DE GRADUAÇÃO EM ENGENHARIA AGRÍCOLA

Revista Brasileira de Engenharia Agrícola e Ambiental
RESUMO Esta pesquisa consistiu no desenvolvimento de uma metodologia de ensino, a partir da utilização de ferramentas da INTERNET, para a disciplina de Sensoriamento Remoto I, ministrada no DEAg (Departamento de Engenharia Agrícola) da UFPB (Universidade
Edilberto Bezerra de Sousa, Ana Lúcia Bezerra Candeias   +1 more
doaj   +1 more source