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为探明小麦中后期渍水逆境的危害表现及补救措施的恢复效果,更好地指导大面积生产,选择典型冬小麦田块进行了人工渍水试验研究。结果表明:中后期渍害对株高、干物重、根系和下层叶片均有明显不利影响,渍害发生越早,则株高下降越多,危害也越大,渍害发生越迟,则单株黄根与黑根数增加越多;渍水越早,对有效穗数影响越大,渍水越迟,对每穗粒数与粒重影响越大;渍害发生越早,追施复合肥或尿素的补救效果最好,渍害发生越迟,叶面喷施碧护调节剂的补救效果最好。
In order to find out the endangering manifestation of the waterlogging stress and the recovery effect of the remedial measures in the late stage of wheat, it is better to guide the large-scale production and choose the typical winter wheat field to carry on the artificial waterlogging test research. The results showed that the late-stage waterlogging had obvious adverse effects on plant height, dry matter weight, roots and lower leaves. The earlier the waterlogging occurred, the more the plant height decreased, the greater the damage and the later the waterlogging. The more the rhizome and black root number increased, the earlier the waterlogging affected the effective spike number, the later the waterlogging affected the grain number and grain weight per spike. The earlier the waterlogging occurred, The remedial effect of urea is best, the later the stain damage occurs, the remedial effect of foliar application of Bi conditioner is the best.