[目的]研究不同施锌方式对淮北砂姜黑土小麦生长发育和经济效益的影响, 探讨适宜施锌量.[方法]设置0、15、30和60 kg/hm2 ZnSO4·7H2O土壤基施用量, 收获期考察小麦产量结构性状.[结果]施锌对小麦生长发育具有一定的促进作用.3年试验, 与对照相比, 单纯土壤基施15、30和60 kg/hm2 ZnSO4·7H2O处理的增产率分别为0.43％～3.50％、4.38％～9.85％和4.25％～10.04％, 平均增产2.26％、7.13％和6.81％.施锌增收508～1 086元/hm2, 施锌产投比达2.82∶1.00～22.74∶1.00.[结论]在淮北平原砂姜黑土地区, 当前生产水平下, 小麦适宜施锌方式为土壤基施ZnSO4·7H2O 15～30 kg/hm2.%[Objective] To study the effects of different zinc application methods on the growth and economic benefits of wheat in Huaibei lime concretion soil and to explore the appropriate amount of zinc application. [Method] The application of 0, 15, 30 and 60 kg/hm2 seven-water zinc sulfate soil base was set, and the yield structure and characters of wheat were investigated at the harvest stage.[Result] Zinc application could promote the growth and development of wheat. In the 3-year experiment, compared with the control group, the yield increase of zinc-hetahydrate treated with 15, 30 and 60 kg/hm2 was 0.43％-3.50％, 4.38％-9.85％ and 4.25％-10.04％, respectively, with an average yield increase of 2.26％, 7.13％ and 6.81％, respectively. Zinc application increased the income by 508-1 086 yuan/hm2, and the zinc application ratio reached 2.82∶1.00-22.74∶1.00. [Conclusion] At the present production level, the suitable zinc application method for wheat is 15-30 kg/hm2 heptahydrate zinc sulfate on the soil base.
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