1试验目的辽宁省建平县土壤碱性较大,平均pH值8.3,植物营养必需微量金属离子元素易缺乏,在玉米上,锌缺乏表现最为明显。通过开展玉米锌肥试验,进一步验证锌肥对玉米生长和产量形成的重要作用,探讨锌肥的施用方式和施用量,促进锌肥的全面应用和推广。2试验材料 1 The purpose of the experiment Jianping County, Liaoning Province, a large alkaline soil, the average pH value of 8.3, plant nutrients essential for the lack of trace metal ions, the performance of zinc in maize, the most obvious. The experiment of corn zinc fertilizer was carried out to further verify the important role of zinc fertilizer in the growth and yield formation of corn and to discuss the application mode and amount of zinc fertilizer and to promote the comprehensive application and promotion of zinc fertilizer. 2 test material