Since the mid-1900s, humans have been exerting an ever-increasing impact on the global nitrogen cycle. Human activities ... the addition of nitrogen can lead to nutrient imbalance in trees ...

Mineral nutrients are usually obtained from the soil through plant roots, but many factors can affect the efficiency of nutrient acquisition. First, the chemistry and composition of certain soils ...

Selenium is a nutrient that is naturally ... help with reproductive health because the mineral's impact on hormones improves a woman's menstrual cycle and because it helps men develop healthy ...