花期相遇良好是实现杂交水稻制种高产的关键,而花期是否相遇在于及早预测,并及时采取调节技术。实现花期相遇良好,能提高制种产量,增加农民收入。下面根据笔者多年水稻制种实践,谈谈各生育期花期综合调节技术: Good flowering is the key to achieving high yield of hybrid rice seed production, and whether the flowering is to meet the early prediction and timely adjustment techniques. Achieve a good flowering period, can increase seed production, increase peasant income. The following years based on the author’s practice of rice seed production, talk about the flowering period of the comprehensive regulation of growth: