薯豆轮作模式下不同种衣剂对大豆农艺性状及产量的影响

Effects of Different Seed Coating Agents on Agronomic Characters and Yield of Soybean Under Potato and Soybean Rotation Mode

为指导薯豆轮作模式下的大豆生产,选用3种种衣剂,采用田间对比试验方法,以不包衣和连作处理为对照,研究不同种衣剂对轮作大豆农艺性状及产量的影响。结果表明,薯豆轮作方式下3种种衣剂应用效果优于豆豆连作,大豆种子包衣促进了大豆植株生长和发育,使株高、茎粗、节间数、单株有效结荚数、百粒重和产量增加,底荚高度降低,能促进早结荚,使植株重心降低可抗倒伏,同时也促进了根瘤的发生,且对大豆根腐病防治效果明显。其中使用复合微生物菌剂拌种处理大豆的根瘤数最多,防治大豆根腐病效果最好,促进了大豆植株的生长发育,植株粗壮,增加了有效结荚数和产量;精甲·咯菌腈包衣处理的收获株数最多,但对根腐病防治效果最差,发病率最高;阿维·多·福化学药剂处理大豆有效结荚数、百粒重和产量最高,增产效果最好。

In order to guide soybean production under potato and soybean rotation mode,three seed coating agents were selected to study the effects of different seed coating agents on agronomic characters and yield of soybean under different rotation mode.The results showed that the application effect of the three seed coating agents under potato and soybean rotation was better than that under soybean continuous cropping.Soybean seed dressing and coating promoted the growth and development of soybean plants,increased plant height,stem diameter,number of internodes,effective pods per plant,100-seed weight and yield,reduced the height of bottom pods,promoted early podding,reduced the plant center of gravity,and resist lodging,at the same time promoted the occurrence of root nodules,and had obvious effects on the control of soybean root rot.Among them,the number of root nodules treated with compound microbial inoculants was the largest,and the effect of controlling soybean root rot was the best,which promoted the growth and development of soybean plants,promoted the effective podding and increased the yield;The number of harvested plants in the treatment of fine methyl-fluoxonitrile coating was the largest,but the control effect on root rot was the worst,and the incidence rate was the highest;The effective pod number,100-seed weight and yield of Avi-do-Fu chemical treatment were the highest,and the yield increase effect was the best.