Diazotroph Abundance and Community Composition in an Acidic Soil in Response to Aluminum-Tolerant and Aluminum-Sensitive Maize (zea Mays L.) Cultivars under Two Nitrogen Fertilizer Forms

In acidic soil, plant aluminum (Al) tolerance and nitrogen (N) fertilizer form play the important roles in influencing plant growth. Diazotrophs as plant growth promoting rhizobacteria can contribute to plant available N, but the response to plant growth differences resulting from plant Al tolerance or N fertilizer form in acidic soil is poorly understood. Here, we investigated this response.