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广东省早造的龙舟水及晚造的秋台风和寒露风等天气,往往减低早、晚稻抽穗灌浆期间的太阳幅射量,成为导致谷粒充实不良,产量不稳的重要原因之一。本文主要研究因前期不同施氮水平和不同穗肥施用情况,形成不同群体结构和植株不同含氮量条件下,齐穗后降低太阳幅射量对谷粒充实的影响。
Long ago, the dragon boat water in Guangdong Province and late autumn typhoon and cold dew weather often reduce the amount of solar radiation during the early and late rice heading stage and become one of the important causes of poor grain yield and yield instability. This paper mainly studies the effects of reducing solar radiation on grain filling due to different nitrogen levels and application of different ear buds in different stages and different nitrogen content of plants after heading stage.