Phosphorus application, nutrient absorption, and endophytic root bacterial communities in maize grown in phosphorus-deficient rocky arid soils, China.

The results demonstrated that: (1) With increasing phosphorus application, the total nitrogen (TN) and total phosphorus (TP) in roots and leaves at the jointing, silking, and milk-ripening stages exhibited a pattern of “low phosphorus treatment enhancing TP content, while high phosphorus treatment suppressing TP uptake.” Total potassium (TK) content showed a decreasing trend, with the highest nutrient uptake observed at the phosphorus application rate of 150 kg ha−1.

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