通过多点田间试验,研究了鄂东南双季稻区施用硅肥对早稻生长、产量、抗折力及养分积累量的影响。结果表明,施硅能促进水稻地上部生长,显著提高稻谷产量。与NPK处理相比,施硅处理早稻的生物量增加4.1%;稻谷产量增加6.2%;影响产量的主要因素为有效穗数和每穗粒数,与NPK处理相比,NPK+Si处理早稻有效穗数和每穗粒数分别增加12.1%和19.2%。施硅显著提高早稻茎部抗折力,与NPK处理相比,抗折力增加16.3%。施硅处理早稻N、P和K积累量分别显著增加15.7%、10.1%和15.5%。可见,硅肥在鄂东南早稻上施用效果显著。 The effects of silicon fertilizer on the growth, yield, stress resistance and nutrient accumulation of early rice were studied by field experiments in the southeastern Hubei province. The results showed that silicon application could promote the growth of rice shoots and significantly increase the yield of rice. Compared with NPK treatment, the biomass of early rice increased by 4.1% and the yield of rice increased by 6.2%. The main factors influencing yield were effective panicles and grains per panicle. Compared with NPK treatment, NPK + Si treatment of early rice was effective Spikes and grains per spike increased by 12.1% and 19.2% respectively. Silicon fertilization significantly increased the bending resistance of early rice stems, compared with NPK treatment, the anti-stress increased by 16.3%. The accumulative amounts of N, P and K in silicon fertilizers increased significantly by 15.7%, 10.1% and 15.5%, respectively. Visible, silicon fertilizer in southeastern Hubei early rice application effect is remarkable.