Spatial variation of soil quality in key grain-producing areas of Qitai County, Xinjiang
【Objective】Qitai County, a major grain-producing area in Xinjiang, is adopting modern agricultural technologies such as aerial pest control, Beidou navigation, precision sowing, and integrated water-fertilizer management. Taking Yaozhanzi village as an example, this paper analyzes the spatial distri...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Chinese |
| Published: |
Science Press
2025-07-01
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| Series: | Guan'gai paishui xuebao |
| Subjects: | |
| Online Access: | https://www.ggpsxb.com/jgpxxben/ch/reader/view_abstract.aspx?file_no=20250707&flag=1 |
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| Summary: | 【Objective】Qitai County, a major grain-producing area in Xinjiang, is adopting modern agricultural technologies such as aerial pest control, Beidou navigation, precision sowing, and integrated water-fertilizer management. Taking Yaozhanzi village as an example, this paper analyzes the spatial distribution of soil quality in the region to provide a baseline for intelligent and precise agricultural management. 【Method】After harvesting wheat and corn, 69 soil sampling points were selected at 700 m intervals across the region. Samples were taken from the 0-40 cm soil layer for determining soil particle size composition and nutrient contents. Classical statistical methods were used to analyze the correlations between indicators, and geostatistical methods were used to assess the spatial variation of each indicator. Soil quality was evaluated using the soil quality index (SQI).【Result】Soil texture in the study area is coarse and alkaline. Soil pH, soil organic matter (SOM), and soil bulk density showed low spatial variability, whereas other soil indicators show moderate variability. Soil available iron, manganese, zinc, SOM, and soil bulk density showed moderate spatial autocorrelation, while other indicators showed strong spatial autocorrelation. Overall, soil quality was above average.【Conclusion】The coarse nature of soil texture in the region resulted in poor water and nutrient retention. Therefore, a high-frequency, low-volume drip irrigation strategy is recommended to reduce nutrient and water leaching. Additionally, applying an appropriate amount of acidic organic fertilizer can increase soil organic matter, improve soil structure, and enhance nitrogen and zinc fertilizer use efficiency. |
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| ISSN: | 1672-3317 |