Effects of Nitrogen Phosphorus Combined Application on Agronomic Characters and Yield of Brassica napus of Multiple Cropping after Wheat
WEI Chun-yu, JIA Biao, HE Wen-shou
HUBEI AGRICULTURAL SCIENCES . 2018, (20): 40 -43 .  DOI: 10.14088/j.cnki.issn0439-8114.2018.20.010