论文部分内容阅读
为了进一步验证ABT6、7号生根粉的广谱性、高效性和对不同区域，不同植物种类的倾向性，1998年无极县技术站在夏玉米上进行了使用效果示范。选择了两个示范区，一个壤土，肥力中上等，前茬小麦667mz产442b，玉米品种为郑单14，点播密度4000株。另一个壤土，肥力中上等，前茬小?
In order to further verify the broad spectrum and high efficiency of ABT 6 and 7 rooting powder and its propensity to different regions and different plant species, Two demonstration areas were selected, one is loam soil, the most fertile one is 447b wheat yielding 442b wheat, Zhengdan 14 corn variety and 4000 on-demand density. Another loam, fertile middle-class, former crop small?