The correlations between the N transport contribution rate in stem sheaths from the heading to maturity stage and the photosynthetic potential from the jointing to heading stage, population growth rate from the heading to maturity stage, and N transport amount in leaves from the heading to maturity stage were highly significant.
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Effects of urea topdressing time on yield, nitrogen utilization, and quality of mechanical direct-seeding hybrid <i>indica</i> rice under slow-mixed fertilizer base application.
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