In which phase do most plants require higher nitrogen levels?

During the vegetative phase, plants require higher nitrogen levels because this nutrient is crucial for promoting growth and development. Nitrogen is a key component of chlorophyll, the molecule responsible for photosynthesis, which allows plants to convert sunlight into energy. In the vegetative stage, plants are focused on building their structure, including stems and leaves, to support future growth. This is the period where they need abundant nitrogen to enhance leaf and stem development, as well as overall biomass production. Sufficient nitrogen during this phase contributes to strong health and vigor, setting the foundation for fruitful flowering and fruiting stages that follow.