为了促进新型水溶肥的推广应用，以制种玉米LY263为指示作物，在河西绿洲灌区研究了新型水溶肥料、普通肥料和普通水溶肥对制种玉米产量及经济效益的影响。结果表明，在化肥用量较普通肥料减少26.2%的条件下，施用新型水溶肥系列产品玉米高效专用水溶肥Ⅰ型168～240 kg/hm2+Ⅱ型336～480 kg/hm2+Ⅲ型105～150 kg/hm2(70%～100%新型水溶肥)，较常规施肥模式制种玉米增产0.5%～7.1%，纯收益增加1470.3～ 2 647.2元/hm2；较普通水溶肥模式增产0.7%～8.8%，纯收益增加1 979.6～3 156.5元/hm2。与普通水溶肥模式相比，施用80%新型水溶肥和100%新型水溶肥可实现制种玉米显著增产，70%新型水溶肥可确保制种玉米不减产，均可在河西灌区应用。

To promote the utilization of water-soluble fertilizers, using seed corn LY263 as the material, effects of using new water-soluble fertilizer, chemical fertilizer and traditional water-soluble fertilizer on yield and economic return of seed corn in the Hexi Oasis irrigation district were studied. Results showed that when 26.2% of less chemical fertilizer was used, high-efficiency special water-soluble fertilizer Ⅰ for corn of 168 to 240 kg/ha plusⅡof 336 to 480 kg/ha plus Ⅲ of 105 to 150 kg/ha (70% to 100% new water-soluble fertilizer) showed an increase in yield of 0.5% to 7.1% compared with that of the conventional fertilization mode, which delivered an increase in net income of 1 470.3 to 2 647.2 RMB/ha, it also showed on increase in yield of 0.7% to 8.8%, compared with that of the traditional water-soluble fertilizer mode, which delivered an increase in net income of 1 979.6 to 3 156.5 RMB/ha. Compared with the traditional water-soluble fertilizer, 80% of new water-soluble fertilizerand 100% of new water-soluble fertilizer could achieve the significant increase in yield while 70% of new water-soluble fertilizercould maintain the yield with no significant reduction, which could all be applied in the Hexi Oasis irrigation district.

S513；S147

“十三五”国家重点研发计划课题(2016YFD0200404)。