【摘要】 通过对大豆喷施烯效唑的研究表明 :于大豆初花期喷 5 0 - 30 0mg/L的烯效唑可降低株高 ,促进茎杆粗壮 ,增加根容 ,提高叶片中叶绿素的含量和光合强度 ,加快灌浆速度 ,增加单株有效粒数和百粒重 ,具有明显的增产效应。其中 15 0mg/L的烯效唑效果优于其它处理 ,增产显著 ,达2 1.6 6 %。更多还原

【Abstract】 The experiment results indicate that , spraying 50-300 mg/L pentefezo at first-bloom stage can decrease plant height ,enhance stem strength ,increase the volume of roots , chlorophyll , photosynthesis rate pod-filling rate , the seed number per plant and 100-seed weight , Dosage of 150 mg/L showed a significant (21.66%) yield increase .更多还原