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通过分析水稻开花灌浆期模拟阴天条件下，不同品种与不同栽培措施的水稻群体吸收光谱辐射能的差异，以及它们同水稻产量形成的关系，从而阐明在水稻生产实践中，结合当地水稻开花灌浆期的气候特点，选择受光条件好的水稻品种，实施合理的栽插密度与行株距，使用有效植物生长调节剂，是改善开花灌浆期阴天水稻群体内光质环境的重要途径。
Through analyzing the difference of absorption spectrum radiant energy of rice population with different cultivars and cultivars under simulated cloudy day conditions at flowering and filling stages and their relationship with rice yield formation, this paper illustrates that in rice production practice, combining with local flowering grouting It is an important way to improve the light quality environment in the overcast rice population during flowering and filling stage by selecting the rice varieties with good light receiving conditions, implementing proper planting density and row spacing, and using effective plant growth regulators.