FA旱地龙能有效地提高植物对水分利用率和减少叶片蒸腾 ,增强植物对干旱的抵御能力 ;并含有大量营养物质 ,可提高作物产量。 1999年我们在大豆上应用了 FA旱地龙 ,现将试验结果总结如下。1　试验材料与方法试验地位于第二积温带下限与第三积温带上限交界处 ,土壤类型为草甸黑土 FA dryland dragon can effectively improve the plant’s water use efficiency and reduce leaf transpiration and enhance plant resistance to drought; and contains a large number of nutrients, can improve crop yields. In 1999, we applied FA on dry soybean, and the test results are summarized as follows. 1 Test materials and methods The experimental site is located at the junction of the second lower limit of the accumulated temperate zone and the upper limit of the third accumulated temperate zone. The soil type is meadow black soil