Abstract
In order to explore the improvement effect of land consolidation projects on soil physical and chemical properties, this paper takes Project A as an example to analyze the influence of soil structure and physical and chemical properties of the tillage layer before and after the implementation of the project. The results show that after the implementation of the land project, the soil pH value is lower than that before the implementation of the project. The increase range of available phosphorus content was significantly greater than that of available potassium, and the effect of sand covering on soil available phosphorus content was more obvious. The total nitrogen content of the soil decreased with the increase of soil depth. After 1 year of corn planting, the total nitrogen content increased compared with that before and after the project was implemented, and the organic matter content also increased. The implementation of the sand leveling project is beneficial to the improvement of the physical and chemical properties of the original saline-alkali soil.
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