水稻高光效栽培技术对其产量及其构成因素的影响

目的]探讨水稻（Oryza sativa L．）高光效栽培技术试验效果。方法]在田阊设计了水稻高光效栽培技术与常规栽培技术的对比试验。结果]水稻栽培行向为磁南偏西20°、栽培密度为（50cm＋20cm）×15cm时产量最高，为8038．5kg／hm^2，比水稻栽培行向为南北向、栽培密度为（50cm＋20cm）x15cm时增产3．1％，比水稻栽培行向为南北向、栽培密度为33cm×15cm时增产4．5％。结论]该研究可为进一步探讨水稻高光效栽培技术对水稻产量的影响提供理论依据。

Effects of Cultivation Techniques of High Photosynthetic Efficiency on Rice（ Oryza sativa L. ） Yield and Its Components

Objective] The aim was to discuss the trial effects of rice high photosynthetic efficiency cultivation techniques. Method ] The comparative tests between high photosynthetic efficiency cultivation and conventional cultivation were designed in field. Result] The yield was the highest of 8 038.5 kg/hm^2 when the orientation of row was south by west 20~ and the planting density was（50 cm ＋20 cm） × 15 cm, which increased 3.1% than that of the orientation of row was from south to north and the planting density was（50 cm ＋ 20 cm） × 15 cm, 4.5% than that of the orientation of row was from south to north and the planting density was 33 cm × 15 cm. Conclusion] The study provides a theoretical basis for deeply discussing the effects of rice cultivation techniques of high photosynthetic efficiency on yield.