Results 41 to 50 of about 12,571 (182)

Spatial Dependence of Physical Attributes and Mechanical Properties of Ultisol in a Sugarcane Field

The Scientific World Journal, Volume 2015, Issue 1, 2015., 2015
This study investigates the effect of conventional tillage and application of the monoculture of sugar cane on soil health. Variables like density, moisture, texture, consistency limits, and preconsolidation stress were taken as indicators of soil quality.
Uilka Elisa Tavares, Mário Monteiro Rolim, Veronildo Souza de Oliveira, Elvira Maria Regis Pedrosa, Glécio Machado Siqueira, Adriana Guedes Magalhães, Jorge E. Gonzalez   +6 more
wiley   +1 more source

Análise e previsão das necessidades de armazenamento da soja no Brasil [PDF]

, 2015
The existence of a minimum storage capacity of grains as a condition for the maintenance of regulator physical stocks has been used as a strategic factor in the agribusiness expansion.
Alcantara, Milla R. de, Patino, Marco T. O., Machado, Marina F., Nascimento, Geraldo T. do   +3 more
core   +1 more source

Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
This study presents a combined application of an EM38DD for assessing soil apparent electrical conductivity (ECa) and a dual‐sensor vertical penetrometer Veris‐3000 for measuring soil electrical conductivity (ECveris) and soil resistance to penetration (PR).
Glécio Machado Siqueira, Jorge Dafonte Dafonte, Javier Bueno Lema, Montserrat Valcárcel Armesto, Ênio Farias França e Silva, Antonio Paz González   +5 more
wiley   +1 more source

Biodiesel de mamona no diesel interior e metropolitano em trator agrícola Mamona biodiesel in interior and metropolitan diesel in agricultural tractor [PDF]

, 2009
A demanda de recursos energéticos pelos sistemas de produção, aliada à escassez dos combustíveis fósseis, tem motivado a produção do Biodiesel, que é um combustível obtido de fontes renováveis.
Camara,Felipe T. da, Carlos E. A. Furlani, Rouverson P. da Silva, Câmara, Felipe Thomaz da, Câmara, Felipe Thomaz da [UNESP], Tabile,Rubens A., Afonso Lopes, Miguel J. Dabdoub, Dabdoub,Miguel J., Silva, Rouverson P. da [UNESP], Silva,Rouverson P. da, Felipe T. da Camara, Lopes,Afonso, LOPES, Afonso, TABILE, Rubens A., SILVA, Rouverson P. da, Lopes, Afonso [UNESP], Furlani, Carlos E. A. [UNESP], Furlani,Carlos E. A., Rubens A. Tabile, DABDOUB, Miguel J., CAMARA, Felipe T. da, FURLANI, Carlos E. A.   +22 more
core   +1 more source

Effects of land management on soil carbon storage in the Brazilian Amazon

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract This study assessed the influence of land use on soil physical and chemical properties and evaluated machine learning (ML) models for predicting soil organic carbon (SOC) content and stocks in the top 0–30 cm layer across selected sites in the Brazilian Amazon. A total of 649 georeferenced samples of surface soil were analyzed for soil texture,
Gizachew Ayalew Tiruneh, Ciro Abbud Righi, Jefferson Lordello Polizel, Vinicius Gonçalves, Carlos Rodrigues Pereira   +4 more
wiley   +1 more source

Chemical Attributes of Soil Fertilized with Cassava Mill Wastewater and Cultivated with Sunflower

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
The use of waste arising from agroindustrial activities, such as cassava wastewater, has been steadily implemented in order to reduce environmental pollution and nutrient utilization. The aim of this study is that the changes in chemical properties of dystrophic red‐yellow latosol (oxisol) were evaluated at different sampling times after reuse of ...
Mara Suyane Marques Dantas, Mário Monteiro Rolim, Anamaria de Sousa Duarte, Ênio Farias de França de Silva, Elvira Maria Regis Pedrosa, Daniel da Costa Dantas, Susana Rodríguez-Couto   +6 more
wiley   +1 more source

Adequacy Of Quick Coupler Sprinkler As Hose Connector For Water Distribution In Furrow Irrigation [adequação De Engates Rápidos De Aspersores Como Conectores De Mangueira Para Distribuição De água Em Sulcos De Irrigação] [PDF]

, 2015
As a way to reduce water losses in furrow irrigation systems, used in fresh market tomato production, farmers are improperly distributing water into the field using plastic hose.
Testezlaf, Roberto, Testezlaf R., Faria, Flaviane F. de, De Faria F.F.   +3 more
core   +1 more source

Effect of Cell Disruption and Protein Extraction on the Structural and Technological Properties of Tetradesmus obliquus Protein‐Rich Extracts

Sustainable Food Proteins, Volume 4, Issue 2, June 2026.
Despite its considerable potential as a functional food ingredient, T. obliquus faces a major limitation in protein recovery due to the rigidity of its cell wall. In the microalgae industry, protein extraction typically involves two main steps: cell disruption and protein extraction.
César Augusto Sodré da Silva, Tamires Souza Silva, Nayara Flores Fonseca, Rejane de Castro Santana, Jose Roberto Miranda Júnior, Márcio Arêdes Martins, Jane Sélia dos Reis Coimbra   +6 more
wiley   +1 more source

Using Multivariate Geostatistics to Assess Patterns of Spatial Dependence of Apparent Soil Electrical Conductivity and Selected Soil Properties

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
The apparent soil electrical conductivity (ECa) was continuously recorded in three successive dates using electromagnetic induction in horizontal (ECa‐H) and vertical (ECa‐V) dipole modes at a 6 ha plot located in Northwestern Spain. One of the ECa data sets was used to devise an optimized sampling scheme consisting of 40 points.
Glécio Machado Siqueira, Jorge Dafonte Dafonte, Montserrat Valcárcel Armesto, Ênio Farias França e Silva, Ana Maria Tarquis   +4 more
wiley   +1 more source

Improvement of the billet metering mechanism used for mechanical planting of sugarcane [PDF]

, 2015
Brazilian production of alcohol and sugar holds an important position among producing countries, with 5.4 million hectares of sugarcane harvested by the industry during 2000. The State of São Paulo contributes with 2.5 million hectares of this total. The
Braunbeck, Oscar A., Magalhães, Paulo S. G., Dias Neto, Américo F.   +2 more
core   +1 more source