Study on the reasonable base - topdressing ratio of nitrogen fertillzer
for wheat in different soil textures
WANG Jiwei1，2，YUAN Hao1,MA Yang1,ZHANG Shiqing1,ZHANG Pei3，
Journal of Hebei Agricultural University . 2021, (1): 1 -7 .  DOI: 10.13320/j.cnki.jauh.2021.0001