关键词: 松材线虫病, 松材线虫病, 松材线虫

Abstract: 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.