夏玉米单产11000~12000kg/hm~2的研究袁宝玉,魏良友,付国占,楚爱香,李凤军,刘杰,李喜梅,楚现周mag(1998)Cited 22|Views8No scoreAI Read ScienceMust-Reading TreeExampleGenerate MRT to find the research sequence of this paperChat PaperSummary is being generated by the instructions you defined