花荚期涝渍胁迫对大豆生长和产量的影响  

Impact of Waterlogging at the Flower-pod Stage on Growth and Yield of Soybean

作　　者：袁宏伟[1,2] 袁先江[1,2] 汤广民[1,2] 杨继伟[1,2] 

机构地区：[1]安徽省水利部淮河水利委员会水利科学研究院,安徽蚌埠233000 [2]水利水资源安徽省重点实验室,安徽蚌埠233000

出　　处：《灌溉排水学报》2017年第6期27-30,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51209001)

摘　　要：为探索汛期易涝易渍情况下大豆种植的排水管理措施,通过测坑试验研究了大豆花荚期涝渍对其生理特征和产量的影响。结果表明,涝渍胁迫引起大豆单株实荚数、百粒质量的减少和减产。大豆相对产量和涝渍综合累积水深SFEW_(30)显著负相关(R=0.948 9),随着涝渍时间的延长,减产幅度增大。在供试土壤为砂姜黑土情况下,为保证大豆正常生长发育并高产,花荚期涝渍时必须将农田地下水位在5 d内降至地面以下30 cm。We studied the impact of waterlogging at flower-pod stage on physiological traits and yield of soybean grown in a lysimeter in attempts to improve drainage management of soybean fields. The results showed that the number of pods, weights of 100-pellets and yield of the soybean decreased due to waterlogging, and that the rela- tive yield was negatively related to accumulated depth of waterlogging （R=0.948 9）. Reduction in soybean yield increased with prolonged duration of waterlogging. To sustain growth and yield of soybean, therefore, the ground- water table should be dropped to below 30 cm of depth in 5 days after waterlogging occurred.

关 键 词：涝渍综合累积水深 大豆 花荚期 产量 

分 类 号：S565.1[农业科学—作物学]