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分析论证了我国北方石灰性土壤上磷空间分布严重不均的特征及其原因。并从植物根系的空间分布及吸磷特性等方面论述了土壤磷空间分布不均对植物营养及生长的影响。并针对上述状况提出提高土壤磷及磷肥有效性及利用率的新途径。
The characteristics and causes of the serious uneven distribution of phosphorus in calcareous soils in northern China were analyzed. The effects of unequal spatial distribution of soil P on plant nutrition and growth were discussed based on the spatial distribution and phosphorus uptake characteristics of plant roots. In view of the above situation, a new way to improve the availability and efficiency of soil phosphorus and phosphate fertilizer is put forward.