Effects of different planting cultivation density and cultivars of maize on occurrence of weed and yield
YANG Jizhi, GONG Guoshu, ZHANG Min, CHEN Huabao, WANG Xuegui, YANG Chunping
Ecology and Environment . 2011, (7): 1037 -1041 .  DOI: 10.16258/j.cnki.1674-5906(2011)06-07-1037-05

Copyright © 2021 Editorial Office of ACTA PETROLEI SINICA

Address:No. 6 Liupukang Street, Xicheng District, Beijing, P.R.China, 510650

Tel: 86-010-62067128, 86-010-62067137, 86-010-62067139

Fax: 86-10-62067130

Email: syxb@cnpc.com.cn

Support byBeijing Magtech Co.ltd, E-mail:support@magtech.com.cn