中文摘要：

采用田间试验研究了施肥对9个水稻品种的产量、养分吸收及氮肥利用率的影响,并比较了不同品种水稻对肥料的响应差异,以期为水稻的科学施肥提供依据。结果表明,不施肥处理（CK）9个水稻品种产量变幅为5312-7473 kg/hm^2,平均为6444 kg/hm^2,变异系数为13.3%。NPK处理显著提高了各品种产量,与CK相比,增产量分别为3240-5578 kg/hm^2,平均增产量4262 kg/hm^2;增产率分别为47.2%-91.3%,平均增产率66.1%。试验条件下,施氮可显著提高各品种产量和氮素吸收量,与不施氮处理（PK）相比增产39.6%-90.9%,氮素吸收量增加59.4%-157.8%;磷、钾肥对水稻的产量无显著影响。不同水稻品种的氮肥利用率也存在较大差异,变幅为23.2%-53.8%。

英文摘要：

Field trial was conducted to study the effect of fertilization on the yield,nutrient uptakes and nitrogen use efficiency of 9 rice varieties,and to compare the differences in response of different varieties of rice to nutrients in order to provide evidence for scientific fertilization of rice. The results showed that the grain yields of each variety of rice were 5312 - 7473 kg /hm^2 with the coefficient of variation of 10%,and the average was 6444 kg / hm^2 for all the CK treatments. Fertilization（ NPK）improved the yield significantly by 3240 - 5578 kg / hm^2 for each variety of rice than CK,and the average yield increased was4262 kg / hm^2. The increase rates of yield were 47. 2% - 91. 3%,and the average was 66. 1%. Under the test conditions,nitrogen（ N） application improved significantly the grain yield and N uptakes of different varieties of rice,which were increased by 39. 6% - 90. 9% and 59. 4% - 157. 8%,respectively. Phosphorus and potassium fertilizer application had no significant effect on the yield of rice. There were also great differences of N use efficiency among different varieties of rice,which were 23. 2% - 53. 8%.