采用溶液培养和土培试验研究了维生素、有机酸浸种及灌根对玉米幼苗生长的影响。溶液培养试验表明，２０μｇ／ｇ的有机酸和鸟囊素单独处理和混合处理，可抑制种子根生长，减少植株对磷的吸收，降低生物学产量；但是在土培实验中，用相同浓度鸟囊素、阿魏酸、水杨酸和苯甲酸等药剂单独浸种，可促进地上部生长，降低根系活力和植株的根冠比；三叶期用相同浓度的药剂灌根处理，可提高根系活力，增加五叶期玉米幼苗的生物学产量和根冠比。 The effects of vitamins, organic acid soaking and rooting on the growth of maize seedlings were studied by solution culture and soil culture. Solution culture experiments showed that 20μg / g organic acids and cystin alone treatment and mixed treatment can inhibit the growth of seed roots, reduce plant absorption of phosphorus, reduce biological yield; but in soil culture experiments, with the same concentration of birds Soluble soaps, ferulic acid, salicylic acid and benzoic acid alone could promote shoot growth, decrease root vigor and root / shoot ratio of plants. Root-shoot treatment with the same concentration of three-leaf stage could increase root activity , Increasing the biological yield and root-shoot ratio of five-leaf stage corn seedlings.