我们就黑河流域绿洲潮土上玉米施锌的效果和技术,进行了多年的田间试验研究。结果表明:绿洲潮土上玉米施锌增产的主要原因是土壤有效锌含量低,施锌玉米籽粒增产量为34.3—74.2kg/亩,增产率为10.2-23.4％。并且,施锌增产率与土壤有效锌含量间呈幂函数曲线关系, 即y?9.388 x~(-1.908)。施锌最有效的万法是锌浸种加叶面喷锌。并初步确定,土壤有效锌(DTPA-Zn)临界含量为1.00ppm。 We have conducted many years of field experiments on the effects and technologies of applying zinc to the corn in oasis in the Heihe River basin. The results showed that the main reason for increasing yield of maize zinc in the oasis was that the effective zinc content in the soil was low, the yield of Zn maize was 34.3-74.2kg / mu and the yield was 10.2-23.4%. Moreover, the yield-increasing rate of zinc application and the available zinc content in soil were power function curve, that is, y-9.388 x -1.908. Zinc is the most effective method of zinc soaking plus foliar spray zinc. It was initially determined that the critical content of soil available zinc (DTPA-Zn) was 1.00 ppm.