引进秋播啤酒大麦不同播期、密度与产量的关系研究

李喜焕,　常文锁,　张彩英,　李保元,　马峙英

Relations between sowing date , seeding density and grain yield of two introduced malting barley varieties

河北农业大学学报 . 2008, (1): 6 -11 .