A Study on Nitrogen and Phosphorus Level in Buckwheat Seedling and Fertilizer Application Index
Wang Yongliang, Liu Jiyie, Dai Qinglin
ACTA AGRICULTURAE BOREALI-SINICA . 1992, (2): 71 -76 .  DOI: 10.3321/j.issn:1000-7091.1992.02.013