A5041605092- Soil Management and Crop Yield
- Soil Carbon and Nitrogen Dynamics
- Agricultural and Food Sciences
- Banana Cultivation and Research
- Soil Geostatistics and Mapping
- Growth and nutrition in plants
- Soil and Land Suitability Analysis
- Environmental and biological studies
- Forest Biomass Utilization and Management
- Geotechnical and construction materials studies
- Geochemistry and Geologic Mapping
- Forest ecology and management
Universidade Federal Rural do Rio de Janeiro
2019-2022
ABSTRACT The objective of this study was to evaluate the efficiency black oat (Avena strigosa Schreb) crops in recovering soil aggregation, and quantify nutrient contents aggregates considering their formation pathways (biogenic physicogenic) crop areas a mountains environment municipality Nova Friburgo, RJ, Brazil. landscape stratified into two sections for study: upper, with crops, one fertilized not fertilized, adjacent forest area representing original conditions; lower: oat, intercrops...
This study quantify the total organic carbon content, light fraction matter (LFOM), and soil fractions (from chemical physical fractionations) in four different cultivation areas: 1 2) rubber tree clonal plantations (FX 3864 IAN 873); 3) a pasture; 4) secondary forest. The research was carried out using samples from of eight-year-old trees, located coastal plain (Tabuleiros Costeiros) state Rio de Janeiro. difference management clone area promoted improvements quality, as it increased...
There is a growing demand for more detailed knowledge about soils, their functions, and connections with human activities environmental services. In Brazil, where soil survey mapping have been scarce since the 1990s, there remarkable sense of urgency. Recently, national program was created (PronaSolos) to attend massive information. PronaSolos an effort return systematic territory, which requires many pedologists who master [...]
The productive potential of the rubber tree (Hevea brasiliensis) is dependent on its genetic composition, in addition to edaphoclimatic factors and management practices. However, as soil properties are not homogenous, knowing spatial variability attributes would be important increase productivity reduce production costs. In this context, objective study was determine chemical influence nutritional status growth clones. Clones FX 3864, FDR 5788, CDC 312, RRIM 600 were planted at Jaturnaíba...
The objective of this study was to evaluate the growth, root and shoot dry mass accumulation nutritional status rubber tree in initial stage cultivation, under different combinations nitrogen (N), phosphorus (P) potassium (K). Combinations following doses were tested: 0, 20, 40 80 kg ha-1 N; 75, 150 300 P2O5; 25, 50 100 K2O. Under soil climate conditions analyzed, NPK fertilization applied at planting only caused significant growth responses plants as a function absence N its presence dose...
A fauna epígea atua diretamente na ciclagem biogeoquímica, através da fragmentação serapilheira. O objetivo deste estudo é associar o processo de do folhedo três diferentes espécimes Paubrasilia echinata Lam (tratamentos PB1, PB2 e PB3) com os principais componentes epígea, em áreas Jardim Botânico Universidade Rural Federal Rio Janeiro Seropédica, RJ. técnica dos litterbags foi utilizada para avaliar a as armadilhas pitfall epígea. Para cada tratamento, utilizaram-se 21 litterbags, sendo...