在洛阳市洛龙区农场进行的叶面喷施磷酸二氢钾、黄腐酸、黄腐酸+含腐植酸水溶肥料与有机水溶肥料对干旱地区小麦生理指标及产量的影响试验表明，喷施水溶性肥料增强了小麦叶片的SOD和POD活性，提高了叶片的叶绿素含量，降低了叶片的相对电导率及丙二醛含量，以喷施黄腐酸+含腐植酸效果最好，小麦折合产量 7 683.0 kg/hm2，较喷清水处理增产624.0 kg/hm2，增产率8.8%。

In order to investigate the effects of spraying foliar fertilizer on wheat growth，the influence of spraying potassium dihydrogen phosphate，fulvic acid， fulvic acid + water-soluble fertilizer containing humic acid and Penshibao on physiological indices and yield of wheat was selected in the experimental farm in Henan University of Science and Technology. The results showed that the application of these four water-soluble fertilizers all could enhance wheat leaf SOD and POD activities，increase leaf chlorophyll content but reduce leaf relative conductivity and MDA content； and fulvic acid + water-soluble fertilizer containing humic acid worked best， the yield of 7 683.0 kg/hm2 and 624.0 kg/hm2 higher than of the check of watertreatment， the increase rate was 8.8%.

S512.1