通过大田试验 ,研究晋南粘质土壤粉煤灰及硝酸磷肥的不同施用量对小麦产量的影响 ,利用系统分析的方法对试验结果进行统计分析 ,从而提出提高粘质土壤小麦产量的合理施用粉煤灰及氮、磷肥的量 Field experiments were conducted to study the effects of different application rates of fly ash and nitrate-phosphate fertilizers on the yield of wheat in the calcareous soil in the south of Shanxi Province. The systematic analysis was used to make statistical analysis on the test results, and a reasonable application powder for improving the yield of wheat in the clayey soils Coal ash and nitrogen, the amount of phosphate fertilizer