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Four determinations for high-yield fertilization of spring corn
In recent years, due to the lack of organic fertilizer input and people's demand for increased unit yield, the amount of corn fertilization has increased significantly, and the application area of some high-concentration compound (mixed) fertilizers has also continued to expand, effectively promoting yield increases, but seedling-stage fertilizer damage, nutrient deficiency symptoms, or late-stage fertilizer loss and yield reduction also often occur, and farmers...