甜菜种、肥分层机播技术研究

李彦, 关健午, 熊念曾

A Study on the Techniques of Mechnical Sowing and Fertilization for Sugarbeet by Layers

Li Yan, Guan Jianwu, Xiong Nianceng

华北农学报 . 1989, (4): 125 -128 . DOI: 10.3321/j.issn:1000-7091.1989.04.024