- Agricultural pest management studies
- Soil Management and Crop Yield
- Legume Nitrogen Fixing Symbiosis
- Growth and nutrition in plants
- Banana Cultivation and Research
- Plant Micronutrient Interactions and Effects
- Forest ecology and management
- Agronomic Practices and Intercropping Systems
- Soybean genetics and cultivation
- Agricultural and Food Sciences
- Coconut Research and Applications
- Oil Palm Production and Sustainability
Brazilian Agricultural Research Corporation
2021-2023
Universidade Federal do Amapá
2021
Universidade Estadual do Amapá
2016
ABSTRACTABSTRACTThis work aimed to evaluate the use of phosphorus (P) fertilizer, rhizobia inoculation, and seed enrichment with molybdenum (Mo) as tools for enhancing cowpea yield in Brazilian eastern Amazon. A set field greenhouse experiments were carried out cerrado upland forest environments. Four levels P fertilization, eight strains, application mineral nitrogen (N) evaluated cultivar BRS Tumucumaque (BR = Brasil e S Sementes), two Mo assessed cultivars Guariba. Grain increased...
Abstract: The objective of this work was to evaluate the response BRS Tumucumaque cowpea (Vigna unguiculata) cultivar liming and phosphorus potassium fertilization in absence inoculation or nitrogen fertilization, as well with selected Bradyrhizobium strains, an upland forest area state Amapá, eastern Amazon, Brazil. Seven experiments were conducted field conditions, order six limestone, four phosphorus, rates, besides strains. Leaf concentrations, pod grain dry mass per plant, yield, soil...
A modelagem de distribuição em classes diamétricas é um dos meios indicar o potencial uso uma comunidade florestal.Nesse sentido, objetivou-se avaliar a estrutura diamétrica espécies lenhosas da Amazônia por meio das Funções Densidades Probabilísticas (FDP's).O estudo foi desenvolvido no município Porto Grande, Amapá.Foi instalada parcela permanente 100 m x m, e feitas mensurações todos os indivíduos que apresentaram diâmetro à altura do peito (DAP) igual ou superior 10,0 cm.Para as análises...
Açaí (Euterpe oleracea Mart.) - a common tropical palm has high social, economic, and environmental importance in the Amazon region. In light of increasing exploration to obtain fruit heart this palms, comprehensive studies are warranted for conservation genetic improvement. Here, we characterized açaí accessions using phenological, morphological, agronomic descriptors random amplified polymorphic DNA (RAPD) molecular markers joint selection with greater productivity. Hundred were analyzed...
Objetivou-se identificar o padrão de distribuição espacial e a estrutura populacional Protium decandrum (Aubl.) em uma floresta ombrófila densa Porto Grande, estado do Amapá. Foi implantada parcela permanente com dimensão 100 m x m. Foram mensurados os diâmetros alturas todos indivíduos arbóreos vivos que apresentaram diâmetro à altura peito (DAP) igual ou superior 10 cm. O foi determinado utilizando-se Índice Dispersão Morisita (Id). Ao total foram registrados 26 P. decandrum, apresentando...