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Mostrando ítems 71-80 de 325
Análisis de la eficiencia agronómica del nitrógeno en los cultivos forrajeros en el Ecuador
(BABAHOYO: UTB, 2020, 2020)
Soil enzymes associated with carbon and nitrogen cycling in invaded and native secondary forests of northwestern Argentina
(Springer, 2014-07)
Background and aims Alien success has frequently been associated with changes in the concentrations of soil nutrients. We aim to investigate the effects of plant invasion on soil nutrients, potential enzyme activity and ...
Plant phenology, leaf traits and leaf litterfall of contrasting life forms in the arid Patagonian Monte, Argentina
(Wiley Blackwell Publishing, Inc, 2008-02)
Question: Do coexisting plant life forms differ in overall phenology, leaf traits and patterns of leaf litterfall? Location: Patagonian Monte, Chubut Province, Argentina. Methods: We assessed phenology, traits of green and ...
Pay it forward: refuse dump from leaf-cutting ants promotes caterpillar digestive performance by increasing plant nitrogen content
(Wiley Blackwell Publishing, Inc, 2019-02-09)
1. The activity of soil-disturbing animals that increase soil nutrients can affect the carbon : nitrogen (C : N) ratio of plants, which, in turn, may determine the transfer of energy and nutrients through higher trophic ...
Reply to: Data do not support large-scale oligotrophication of terrestrial ecosystems.
(Springer Nature, 2019-07-22)
Hiltbrunner et al. apply a reductionist approach to argue that the evidence for widespread terrestrial oligotrophication2 should be replaced with a two-factor explanation (growth dilution and depositional signatures) that ...
Soil resource acquisition mechanisms, nutrient concentrations and growth in perennial grasses
(Interciencia, 2004-12-05)
Species historically heavily grazed may have been selected for grazing-resistance traits associated with improved nutrient use efficiency (Chapin and Slack, 1979). Higher root length density (RLD) and vesicular-arbuscular ...
Utilisation of organic compounds by osmotrophic algae in an acidic lake of Patagonia (Argentina)
(Springer Tokyo, 2014-04)
We investigated whether algal osmotrophy in naturally acidic Lake Caviahue is an important process for acquisition of organic carbon and organic nitrogen. To accomplish this, we quantified algal assimilation of organic ...
Technical and economic viability and nutritional quality of mombasa guinea grass silage production
(Editora da Universidade Estadual de Maringá - EDUEM, 2018-07-16)
The objective of this study was to evaluate the viability of pasture with high production capacity and the potential for production of silage using different sources and doses of nitrogen (N) by quantifying the productivity ...
Profiling the proteomics in honeybee worker brains submitted to the proboscis extension reflex
(2017-01-16)
The proboscis extension reflex (PER) is an unconditioned stimulus (US) widely used to access the ability of honeybees to correlate it with a conditioned stimulus (CS) during learning and memory acquisition. However, little ...