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0引言国家开展土壤长期定位监测工作已经有20多年了,位于新疆和田地区的三个灌淤土国家级监测点通过长期定点监测,积累了大量养分变化和作物产量数据,为指导农民施肥和改良土壤提供了依据。
0 Introduction The state has conducted long-term monitoring of soil for more than 20 years. Three national monitoring sites for irrigated soil in the Hetian area of Xinjiang have accumulated a large amount of nutrient changes and crop yield data through long-term fixed-point monitoring to guide farmers in fertilization and improvement Soil provided the basis.