硅肥对双季水稻生长发育及产量的影响  

Effects of Silicon Fertilizer on Growth and Yield of Double-Cropping Rice

作　　者：郭荟 屠乃美[1] 马国柱 方畅宇 陈威 杨宁俊 庾振宇 蒋小欢 邹燕 刘芳禧 易镇邪[1] GUO Hui;TU Naimei;MA Guozhu;FANG Changyu;CHEN Wei;YANG Ningjun;YU Zhenyu;JIANG Xiaohuan;ZOU Yan;LIU Fangxi;YI Zhenxie(College of Agronomy,Hunan Agricultural University,Changsha,Hunan 410128,China)

机构地区：[1]湖南农业大学农学院,长沙410128

出　　处：《作物研究》2021年第6期549-554,共6页Crop Research

基　　金：国家公益性行业(农业)科研专项(201503123)。

摘　　要：为进一步明确不同水稻品种对硅肥施用的响应机制,为双季稻生产合理用硅提供指导,在南方典型双季稻种植区以早稻品种中早39、陆两优171和晚稻品种美香占2号、桃优香占为材料,分析施用硅肥对双季稻生长发育及产量的影响。结果表明:(1)施硅可以改善水稻的生长发育特性,增加水稻的干物质积累量,提高水稻群体质量,为水稻增产奠定基础;(2)施硅可以提高水稻的有效穗数、穗粒数和早、晚稻产量,早稻增产2.76%~18.70%,晚稻增产4.52%~18.41%。In order to further clarify the response mechanism of different rice varieties to silicon fertilizer application and provide guidance for rational use of silicon in double cropping rice production,the effects of silicon fertilizer on the growth and yield of double cropping rice in southern China were analyzed using early rice varieties Zhongzao 39,Luliangyou 171 and late rice varieties Meixiangzhan 2 and Taoyouxiangzhan.The results showed that:(1)Silicon application can improve the growth and development characteristics of rice,increase the dry matter accumulation amount of rice,improve the quality of rice population,and lay a foundation for the increase of rice yield.(2)Silicon application increased the number of effective panicles and grains per panicle,and the yield of early and late rice increased by 2.76%-18.70% and 4.52%-18.41%,respectively.

关 键 词：水稻 硅肥 生长发育 产量 

分 类 号：S511.062[农业科学—作物学]