【摘要】 为了探索单季杂交晚稻新组合嘉丰优2号在浙江台州的高产高效栽培技术,采用"3414"试验设计开展了嘉丰优2号新组合氮、磷、钾肥料效应试验。结果表明,嘉丰优2号实际单产在无肥区（处理1）和无氮区（处理2）无显著差异（P>0.05）,二者均显著低于其他处理（P<0.05）,其他处理间差异均不显著（P>0.05）,其中以氮、磷、钾均为2水平(202.5—90.0—150.0 kg·hm^-2)的处理6产量最高,较无氮区（处理2）、无磷区（处理4）、无钾区（处理8）分别高31.73%、6.34%和6.43%说明氢肥对产量的效应高于磷、钾肥;相关分析表明,实际产量与有效穗数极显著正相关（P<0.01）,而与每穗实粒数和结实率显著负相关（P<0.05）;从高产高效要求出发,综合氮、磷、钾肥料效益模型和生产实际,嘉丰优2号在当地作单晚种植的N、P₂O₅、K₂O用量分别以201.0～210.0 kg·hm^-2、90.0～97.5 kg·hm^-2、112.5～120.0 kg·hm^-2为宜。更多还原

【Abstract】 In order to explore the high productive and efficient cultivation technology of Jiafengyou No.2 new combination for single late planting in Taizhou, Zhejiang province, the experiment was conducted with "3414" design to study the effects of N, P, K fertilizers on Jiafengyou No.2. The results showed that the yield of Jiafengyou No. 2 had no significant difference between no fertilizer and no N fertilizer treatment（P>0.05）, but the two treatments were significant lower than the other treatments（P<0.05）,and there was no significant difference among the other treatments（P>0.05）; the treatment of the 2 ndlevel(N 202.5 kg·hm^-2, P 90.0 kg·hm^-2, K 150.0 kg·hm^-2)had the highest yield, which the yield was 31.73%, 6.34% and 6.43% higher than the treatments of no N fertilizer, no P fertilizer, and no K fertilizer, respectively. The correlation analysis indicated that the yield had significantly positive relationship with effective panicle（P<0.01）, but significantly negative related with filled grains per panicle and seed setting rate（P<0.05）. According to N, P, K fertilizer benefit model combine with the actual production, the optimum application amounts of N, P₂O₅ and K₂O for Jiafengyou No.2 single late planting should be 201.0～210.0 kg·hm^-2, 90.0～97.5 kg·hm^-2, 112.5～120.0 kg·hm^-2, respectively.更多还原