中国生态农业学报2012，Vol.20Issue(6)：717-722,6.DOI:10.3724/SP.J.1011.2012.00717
模拟鸭稻共作系统中鸭子机械刺激对水稻形态建成的影响
Mechanical stimulation of duck on rice phyto-morphology in rice-duck farming system
摘要
Abstract
Integrated rice-duck farming system, developed from "raising ducks in paddy fields", as one of China's traditional agriculture was encouraged for safe production of rice in China, Japan and other countries in Southeast Asia. To study the effects of ducks on the growth characteristics of rice, a mechanical stimulation experiment was conducted under greenhouse conditions. Based on the analysis, mechanical stimulation showed some impacts of raising ducks on agronomic characteristics of rice. Different intensities of mechanical stimulation restrained and decreased total rice height by 8-10 cm at harvest stage. The lengths of different sections of rice stem, especially the length of the above-ground second section, reduced under duck-rice farming. The thickness of rice stem increased under enhanced mechanical stimulation, with the highest increment of 0.17 cm after treatment for 40 days. While mechanical stimulation for a certain period improved effective tillering capacity of rice, it obviously decreased shoot biomass by about 19.6% after treatment for 40 days. This led to an increase in root/shoot ratio of rice. Moreover, mechanical stimulation changed some characteristics of rice yield formation. Under enhanced stimulation intensity, average length of rice-ear increased by 8.88%. Also empty grain number per rice ear decreased by about 36.12%. Rice seed setting rate was higher by 3.79% under increased mechanical stimulation than the control. The findings of this study further verified the effects of mechanical stimulation on plant growth. It provided the basic scientific references for the improvement and reasonable utilization of duck-rice integrated fanning system.关键词
机械刺激/稻鸭共作/形态建成/株高/秸秆粗度Key words
Mechanical stimulation, Rice-duck farming system, Morphogenesis, Plant height, Stem thickness分类
农业科技引用本文复制引用
黄兆祥,章家恩,梁开明,全国明,赵本良..模拟鸭稻共作系统中鸭子机械刺激对水稻形态建成的影响[J].中国生态农业学报,2012,20(6):717-722,6.基金项目
国家重大基础研究发展计划(973计划)项目(2011CB100406)、国家自然科学基金项目(30800134,30770403)、国家环保部公益性行业科研专项(201009020-04)、广东省科技计划项目(2004B20101017, 2009B020311012)、广东省现代农业产业技术体系建设专项(粤农[2009]380号)和广东省自然科学基金项目(06105467)资助 （973计划）
