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本研究旨在根据稻叶与茎、根的同伸关系,叶鞘、茎、穗间的营养运输规律,以杂交早稻汕优秀2号为供试组合,研究不同叶龄期相应的促控措施,探讨秧苗促蘖,本田早发的最佳氮素用量、穗肥施用以及晒田的最佳叶龄期。从而达到通风透光,株型理想,水肥供应协调,产量结构合理,高产稳产的目的,为指导生产提供科学依据。
The purpose of this study was to investigate the effects of different leaf ages on the basis of the relationship between the extension of shoots and their stems and roots, the nutrient transport between leaf sheaths, stems and spikes, and the hybrid rice combination Shanyou 2, To investigate the effects of seedling growth and tillering, the optimum amount of nitrogen for early Honda, the application of spike fertilizer and the best leaf age of sun-shading. So as to achieve the purpose of ventilation and light, ideal plant type, water and fertilizer supply coordination, reasonable output structure, high yield and stable production, to provide scientific basis for the guidance of production.