1970年我们曾在早稻分蘖始期喷施“九二○”,期望能促进早发棵,多发棵,增加有效分蘖,但结果反而迟发,少发,限制了发棵,减少了有效分蘖,产生不利的影响。在《湖北省1970年水稻应用“九二○”的调查报告》中,也提出“发棵期应用‘九二○’,禾苗只向上长,妨碍了发棵”的问题。 In 1970, we had sprayed “920” on the early tillering stage of early rice, hoping to promote the early emergence of trees and the frequent emergence of effective tillers. However, the results were delayed and fewer, limiting the development of trees and reducing the effective tillers. negative effect. In the “Survey Report on Rice Application” of “1990” in Hubei Province, it also raised the issue of “applying the ’920’ seedlings and growing the seedlings only to the top, which hinders the development of trees.”