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Fig. 5. Percentage reduction in nitrogen content in various parts of a maize plant due to different nitrogen treatments, as compared to the control treatment (N5). The nitrogen treatments are N1, N supplied from V8 to maturity; N2, N supplied from seedling emergence to V8; N3, N supplied from seedling emergence to silking; N4, N supplied from seedling emergence to 3 wk after silking; and N5 (control), N supplied from seedling emergence to physiological maturity.
