The nutritional status of the coffee tree is influenced by the concentration of nutrients in the soil of the growing area. The objective of this work was to evaluate, using canonical correlation, the linear relationships between chemical attributes of soil and nutrients of leaf t...
Open access
Research Article10.9734/jeai/2019/v35i330208
The objective of the study was to quantify the litter in different genotypes of eucalypts stands at 49-months-old, located in Eldorado do Sul, Rio Grande do Sul, Brazil. Areas of 720 m² were demarcated for each genotype. In each area, 15 samples were randomly collected. The litte...
Open access
Research Article10.9734/jeai/2019/v35i330206
Mechanical impedance to root growth is one of the most important factors determining root elongation and proliferation within a soil profile. Two pot experiments were conducted at the Department of Horticulture, KNUST, Kumasi, Ghana, to determine the impact of subsurface compacti...
Open access
Research Article10.9734/jeai/2019/v35i330207
Cássio Ricardo Gonçalves da Costa, Vânia da Silva Fraga, George Rodrigues Lambais, Kilmer Oliveira Soares, Stella Ribeiro Prazeres Suddarth & Salomão de Sousa Medeiros·Journal of Experimental Agriculture International·2019
The change in the use of the soil causes an imbalance in the ecosystems, altering the chemical and physical properties, which can make their natural recovery unviable. This study aimed to characterize chemically and physically an Entisol under the Caatinga area in a 30 years ecol...
Open access
Research Article10.9734/jeai/2019/v35i230202
Lucas de Arruda Viana, Deborah Campos Tomaz, Rodrigo Nogueira Martins, Jorge Tadeu Fim Rosas, Fernando Ferreira Lima dos Santos & Marcelo Fagundes Portes·Journal of Experimental Agriculture International·2019
The growing human population added to the rural exodus has aggravated the pressure in the agricultural sector for greater production. Faced with this problem, research has developed optical sensors for more productive agriculture with the purpose of minimizing the effects of rura...
Open access
Research Article10.9734/jeai/2019/v35i230203
The aim of the present study was to quantify macronutrient stock in the hybrid Eucalyptus urograndis, for different soil types in Telemaco Borba, Parana, Brazil. Sandy texture (Cambisols Inceptisols), and clayey texture (Ferralsols Oxisols) soils were selected for the study. Base...
Open access
Research Article10.9734/jeai/2019/v35i330204
The homogeneity investigation of a series can be performed through several nonparametric statistical tests, which serve to detect artificial changes or non-homogeneities in climatic variables. The objective of this work was to evaluate two methodologies to verify the homogeneity...
Open access
Research Article10.9734/jeai/2019/v35i330205
Aim: Postemergence timing trials based on weed size were conducted near Lubbock, TX to assess the effectiveness of 2,4-D choline + glyphosate on control of Palmer amaranth (Amaranthus palmeri S. Wats.), Russian-thistle (Salsola tragus L.), and kochia (Kochia scoparia L.) at three...
Open access
Research Article10.9734/jeai/2019/v35i230199
Claudiney do Couto Guimarães, Dione Richer Momolli, Huan Pablo de Souza, Mauro Valdir Schumacher, Aline Aparecida Ludvichak & Angélica Costa Malheiros·Journal of Experimental Agriculture International·2019
The objective of this study was to evaluate the biomass production and to characterize a 7-year-old Eucalyptus benthamii stands in the Pampa-RS Biome. Initially, a sample inventory was performed for the dendrometric characterization of the stand. For the determination of biomass,...
Open access
Research Article10.9734/jeai/2019/v35i230201
This research aims with the help of geotechnologies to map the different uses and coverage of the earth by analyzing its effects in relation to the altitudinal gradient in semiarid regions. In order to do so, RapidEye images were acquired in the year 2014, after the organization...
Open access
Research Article10.9734/jeai/2019/v35i230198
Elisete Pedreira Lopes, Regina Cássia Ferreira Ribeiro, Adelica Aparecida Xavier, Renato Martins Alves, Marcelly Thais de Castro, Maria Josiane Martins, Lorena Gracielly de Almeida, Edson Hiydu Mizobutsi & José Augusto dos Santos Neto·Journal of Experimental Agriculture International·2019
Objective: To evaluate under controlled conditions the effect of alternative liquid Bacillus subtilis isolate 34 formulation on Meloidogyne javanica and tomato growth promotion. Statistical Design: The design was completely randomized block with five treatments and eight replicat...
Open access
Research Article10.9734/jeai/2019/v35i130197
Maria J. H. Leite, Valdemir F. Silva, Maria A. M. Silva, Andréa V. F. Pinto, Ana C. B. Lins-e-Silva, Maria M. B. Aguiar, Girlânio H. Silva, Ladivania M. Nascimento, André L. A. Lima & Maria J. N. Rodal·Journal of Experimental Agriculture International·2019
The functional characteristics of plants can be used to understand the changes of vegetation under different environmental pressures, since during the process of succession, the species deal with variations of luminosity, an important resource for the regeneration and growth of p...
Open access
Research Article10.9734/jeai/2019/v35i130196
Anne Caroline Dallabrida Avelino, Dayana Aparecida de Faria, Carlos Eduardo Avelino Cabral, Joadil Gonçalves de Abreu, Elisangela Clarete Camili, Kyron Cabral Sales & David Bungestab·Journal of Experimental Agriculture International·2019
Data regarding the mixing of palisade grass seeds with fertilizers are scarce and contradictory. The aim of this study was to evaluate the maximum contact time without significant damage on physiological quality of Piatã grass seeds when mixed with 05:25:15 NPK fertilizer. The ex...
Open access
Research Article10.9734/jeai/2019/v35i130193
Rafael Henrique Pereira dos Reis, Joadil Gonçalves de Abreu, Roberto Giolo de Almeida, Luciano da Silva Cabral, Carlos Eduardo Avelino Cabral, Livia Vieira de Barros, Arthur Behling Neto, Edegar Matter, Patricia Orlando Royer, Dayenne Mariane Herrera & Joana de Medeiros Farias·Journal of Experimental Agriculture International·2019
The aim of this work was to evaluate the agronomic characteristics, chemical composition and in vitro gas production of sugarcane (Saccharum spp.) cultivars used in ruminant feed. The experimental design was a randomized block containing seven treatments and three replications to...
Open access
Research Article10.9734/jeai/2019/v35i130194
José Carlos Costa, Adônis Queiroz Mendes, Islan Diego Espíndula de Carvalho, Jackson da Silva, José Luiz Sandes de Carvalho Filho & Dimas Menezes·Journal of Experimental Agriculture International·2019
The eggplant, Solanum melongena L. is a crop that is in the expansion phase, mainly due to the medicinal properties of its fruits in lowering cholesterol levels and blood pressure. The objective of this work was to evaluate eggplant genotypes in different cropping systems, identi...
Open access
Research Article10.9734/jeai/2019/v35i130195