塑料簿膜覆盖下棉花氮素营养特性及增产效果
王正芳;徐宗敏;
THE EFFECT OF NITROGEN ON PRODUCTION OF COTTON UNDER FILM COVER
Wang Zhengfang (Institute for Application of Atomic Energy, Jiangsu Academy of
J4 . 1987, (04): 73 -86 .  DOI: 10.11869/hnxb.1987.04.0073