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干旱缺水地区灌溉施肥不仅是为了供给当季作物所需，而且应成为培肥土壤，发展持续农业的重要手段。选择有机质、全氮、速效磷含量作为土壤肥力的基础指标，列举了山西省部分灌区土壤肥力状况及不同作物土壤肥力特征，表明灌溉、施肥在土壤培肥中起主导作用，介绍了根据供水条件和土壤碳氮比来选择肥料种类及施肥方法的一般原理。
Irrigation and fertilization in arid and dry regions is not only necessary for the supply of seasonal crops, but also an important means of fertilizing the soil and developing sustainable agriculture. Selecting organic matter, total nitrogen and available phosphorus content as the basic index of soil fertility, the status of soil fertility and the soil fertility characteristics of different crops in some irrigated areas of Shanxi Province are listed. It shows that irrigation and fertilization play a leading role in soil fertility improvement. And soil carbon to nitrogen ratio to choose the type of fertilizer and fertilizer methods of general principles.