关键词: 甬优15, 穗肥, 生育期, 产量

Abstract: To explore the optimum application of panicle fertilizer to Yongyou 15, six treatments （N1~N6） were compared. The results showed that N3 treatment had the highest yield, followed by N5 treatment. Therefore, under the condition of this experiment, when 30% of the total nitrogen fertilizer was used as the panicle fertilizer, and applied at about 7 days before heading, or 40% of the total nitrogen fertilizer was used as the panicle fertilizer and applied at three weeks before heading and one week before heading, would get higher yield.

Key words: Yongyou 15, application of panicle fertilizer, period of duration, yield