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双效素是华中农业大学谢九皋教授等研制的一种新的植物生长调节剂。初花期喷施于棉花,可促进叶绿素合成,使棉花叶色加深;可减少脱落率,
Two-element is the Huazhong Agricultural University, Professor Xie Jiu-gao and other research developed a new plant growth regulator. The first flowering spray applied to cotton, can promote chlorophyll synthesis, cotton leaf color deepen; can reduce the rate of shedding,