【摘要】 通过田间对比试验,研究了稻鸭共作技术对水稻根系的影响效应.结果表明:在稻鸭共作复合生态系统中,由于鸭子的田间活动和刺激作用,明显改善了水稻的根系生长质量.与常规稻作相比,水稻的根系活力、根系总吸收面积和活跃吸收面积分别增加4.76%~72.54%、9.16%~32.07%和0.93%~55.31%;水稻的根系体积、根系干质量、根系比表面积和生长中后期的根冠比也有不同程度的提高.说明稻鸭共作对减缓水稻根系的早衰、增强植株生理活性和促进水稻的生长发育均具有积极作用.更多还原

【Abstract】 The effects of integrated rice-duck farming technology on rice roots were studied.The results showed that the growth quality of rice roots was markedly improved in the integrated rice-duck farming ecosystem because of the stimulations and daily activities of ducks.Compared with the conventional rice farming,the root activity,the total absorbing surface area and active absorbing surface area of rice roots were increased by 4.76%-72.54%,9.16%-32.07% and 0.93%-55.31%,respectively.The volume,dry mass,total absorbing surface area/volume ratio of rice roots and rice root/shoot ratio at middle-late stage were enhanced to some extent too.This indicated that rice-duck farming had positive effects on the postponement of rice root aging,improvement of physiological activity of rice plant,and rice growth and development.更多还原