兵团第七师125团麦后复播大豆喷施不同生长调节剂对比试验

The Comparative Trial of Applying Different Growth Regulators on Soybean after Wheat Harvest in the 125th Regiment of the 7th Division of Bingtuan

摘要: 通过在复播大豆不同生育期设置8种植物生长调节剂处理，开展不同植物生长调节剂在大豆上叶面喷施的效果研究，明确生长调节剂的效果。结果表明，喷药后各处理株高均增加，23天后增加基本停止，叶龄均增加，处理5以外，其他处理均在23天后增加基本停止，所有处理在8月5~17日果枝台数增长最快，贡献了总增长量的68%~85%，在8月5日喷药前到喷药后8月17日前均未结荚，而喷药后8月17日到28日(11天内)出现爆发式增长，之后稳定结荚。各处理的单荚粒数和百粒重的变幅较小，亩株数变化最大，单株结荚数变化较大，处理1的亩株数最低(27335株)，单株结荚数最高(23.4个)，产量最高，达到276.32 kg/亩。研究结果为提高大豆田间高产种植技术提供借鉴和参考。

Abstract: By applying eight different plant growth regulators at various growth stages of relay-cropped soybeans, this study investigated the effects of foliar spraying of these regulators on soybean plants to clarify their efficacy. The results showed that after spraying, the plant height increased in all treatments, with the growth nearly stopping after 23 days. Leaf age of soybean also increased, except for treatment 5, where stopped after 23 days for other treatments. All treatments exhibited the fastest growth in fruit branches between August 5th and 17th, contributing 68%~85% of the total growth. No pods were formed from before spraying on August 5th to August 17th after spraying. However, a rapid increase in pod formation occurred from August 17th to 28th (within 11 days), after which pod formation stabilized. It was relatively small among the treatments to the variations in the number of seeds per plant and the weight of 100 seeds, while the number of plants per mu showed the largest variation, followed by the number of pods per plant. Treatment 1 had the lowest number of plants per mu (27,335 plants) but the highest number of pods per plant (23.4 pods), resulting in the highest yield of 276.32 kg per mu. This study provides valuable insights and references for improving high-yield cultivation techniques in soybean fields.