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花粳45是我省首审的水稻花培品种，种植面积已超过60万亩。为配合抛秧技术的应用及花粳45的推广，充分发挥该品种的增产潜力，并确定主要栽培措施对其产量的综合作用和主次关系，使其栽培技术规范化、数量化，我们于1997年在本所试验地，采取五因素二次回归正交旋转组合设计法?
Flower japonica 45 is the first trial in our province of rice flower cultivars, planted area has more than 60 acres. To tie in with the application of rice throwing technology and the promotion of flower japonica 45, give full play to the yield potential of the variety, and to determine the main cultivation measures on the yield of the comprehensive effect and the primary and secondary relationships, so that cultivation techniques of standardization and quantification, we in 1997 Year in our test place, to take five factors quadratic regression orthogonal rotation combination design?