氮锌复合作用对单播和混播牧草氮素来源的影响
何忠俊,华珞
INFLUENCE OF THE COMPOUND EFFECT BETWEEN NITROGEN AND ZINC ON THE RESOURCE OF NITROGEN OF HERBAGE IN MIXED AND PURE CULTURE
HE Zhong jun 1,3 HUA Luo 1,2 (1 Institute for Application of Atomic Energy, Chinese Academy of Agricultural Science, Beijing\ 100094; 2 Department of geography, Capital Normal University, Beijing\ 100037; 3 Soil and Fertilizer Institute
J4 . 2002, (03): 179 -184 .  DOI: 10.11869/hnxb.2002.03.0179