安国药材与粮作土壤中有效铜锌含量的状况调查
赵姣姣,刘文科
Survey of Soil Available Copper and Available Zinc Contents on Herbal Field and Food crop Field in Anguo City
ZHAO Jiao jiao,LIU Wen ke
中国农业气象 . 2014, (04): 389 -394 .  DOI: 10.3969/j.issn.1000-6362.2014.04.005