【摘要】 对鸭稻共作生产方式下水稻几个生育期的株高、叶面积指数、生物量、根系活力、根系形态特征指标等进行了对比研究。结果表明,鸭稻共作生态模式中由于鸭子的活动,对水稻生长发育具有一定影响。与常规水稻栽培方式相比,鸭稻共作方式下水稻株高、叶面积指数、生物量有减小的趋势,而且在有效分蘖期和幼穗分化期存在着显著或极显著差异。鸭子活动对水稻根系生长状况(根/冠比、根系活力)也具有一定作用,与常规水稻栽培方式相比,鸭稻共作方式下水稻根冠比和根系活力有增加趋势,根冠比在幼穗分化期达到显著差异,根系活力在有效分蘖期存在显著差异;鸭稻共作方式下水稻根系总长变化无明显规律,根系表面积与常规栽培方式下相比无显著差异。更多还原

【Abstract】 The effects of the integrated rice-duck farming system (IRDFS) was studied with a control treatment of conventional rice monoculture system (CRMS). The experimental data showed that the everyday activities of ducks in IRDFS could affect the growth of rice. Compared with the CRMS, the height, leaf area index and biomass of rice in IRDFS decreased and there was a significant difference during the tillering and heading stage. But root/shoot ratio, root activity were higher in IRDFS than those in CRMS because of stimulation of ducks in the paddy field. There were significant differences for root/shoot ratio during the heading stage and for root activity during the tillering stage. Total root length of rice showed no signficant change trend. There was not a significant difference in root surface area of rice by comparing with the control treatment.更多还原