杂交水稻京福1优527高产栽培试验研究

为进一步提高京福1优527的单产水平，挖掘其产量潜力，2007年在福建省三明地区进行种植密度、纯氮施用量、磷肥施用量、钾肥施用量4因素3水平正交试验，结果表明，每公顷基本苗21.74万株、施用纯氮150kg、施用磷肥90kg、施用钾肥150kg可实现较高的产量水平，与其它处理差异达显著。京福1优527高产栽培策略是合理密植,控制好基本苗数。一般中等肥力田基本苗以21.74万/hm2左右为宜，例如安排密植规格为20 cm×23 cm，每丛插1~2苗左右。同时通过合理施用氮、磷肥促使大穗，以达到高产目的。在中等肥力条件下，每公顷施用纯氮150kg、磷肥150kg可达到7.72t/hm2左右的产量水平。与此同时，配合施用钾肥和有机肥也是很必要的。

Studies on High-yield Growth of Hybrid Rice Variety Jingfu 1 You 527

To improve yield of Jingfu 1 You 527 and get higher yield, We studied how the different factors (the planting density, nitrogen application rates, phosphate application rates and Potassium Application Rate of hybrid rice) change the yield of Jingfu 1 You 527 by 4 factors 3 level orthogonality design in Sanming City of Fujian Province in 2007. The results indicate that 217.4 thousand seedlings, 150 kilograms nitrogen, 90 kilograms phosphate fertilizer and 150 kilograms potash fertilizer per hectare is good for high yield production, and it reached the significant different level compared with the other treats. The high yield cultural strategy of Jingfu 1 You 527 is rational close planting and the good control of the number of basic seedling. Generally, with about 217.4 thousand plants per hectare of basic seeding for the middle fertility fields is reasonable. For example, arranging a close planting specification of 20 cm×23 cm and planting about 1-2 seeding per norm is reasonable. Rational application of N and P fertilizers can achieve larger panicle as well as the order of higher yield. With application of 150kg per hectare for pure N and P fertilizers respectively the yield level can achieve about 7.72 ton per hectare. At the meantime, the combined application of potash fertilizer and organic fertilizer is also vital to achieve higher yield.