Mulching with plastic film improved the root quality of summer-sown sweet potato (Ipomoea batatas (L). Lam.) in northern China
HOU Fu-yun, DONG Shun-xu, XIE Bei-tao, ZHANG Hai-yan, LI Ai-xian, WANG Qing-mei
Journal of Integrative Agriculture . 2019, (5): 982 -991 .  DOI: 10.1016/S2095-3119(18)61994-X