| Spatial distribution and correlation of soil salinity and available nutrients in cotton area of upper reaches of Tarim River |
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| DOI：10.7606/j.issn.1000-7601.2024.03.22 |
| Key Words: salt ion nitrate nitrogen available potassium available phosphorus spatial distribution |
| Author Name | Affiliation | | LIU Zhaoxue | College of Agriculture, Tarim University, Alar, Xinjiang 843300, China
Key Laboratory of Genetic Improvement and Efficient Production of Characteristic Crops in Arid Areas of Southern Xinjiang, Alar, Xinjiang 843300, China
Southern Xinjiang Oasis Agricultural Resources and Environment Research Center, Alar, Xinjiang 843300, China | | GAO Zhijian | Institute of Water Conservancy and Soil and Water Conservation, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, Xinjiang 832000, China | | BAI Xinlu | College of Agriculture, Tarim University, Alar, Xinjiang 843300, China
Key Laboratory of Genetic Improvement and Efficient Production of Characteristic Crops in Arid Areas of Southern Xinjiang, Alar, Xinjiang 843300, China
Southern Xinjiang Oasis Agricultural Resources and Environment Research Center, Alar, Xinjiang 843300, China | | ZHANG Baoyue | College of Agriculture, Tarim University, Alar, Xinjiang 843300, China
Key Laboratory of Genetic Improvement and Efficient Production of Characteristic Crops in Arid Areas of Southern Xinjiang, Alar, Xinjiang 843300, China
Southern Xinjiang Oasis Agricultural Resources and Environment Research Center, Alar, Xinjiang 843300, China | | YANG Lili | College of Agriculture, Tarim University, Alar, Xinjiang 843300, China
Key Laboratory of Genetic Improvement and Efficient Production of Characteristic Crops in Arid Areas of Southern Xinjiang, Alar, Xinjiang 843300, China
Southern Xinjiang Oasis Agricultural Resources and Environment Research Center, Alar, Xinjiang 843300, China | | ZHI Jinhu | College of Agriculture, Tarim University, Alar, Xinjiang 843300, China
Key Laboratory of Genetic Improvement and Efficient Production of Characteristic Crops in Arid Areas of Southern Xinjiang, Alar, Xinjiang 843300, China
Southern Xinjiang Oasis Agricultural Resources and Environment Research Center, Alar, Xinjiang 843300, China |
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| Abstract: |
| Soil salt has become an important obstacle factor restricting the upstream cotton field production of the Tarim River. To find out the status quo of the salt in the soil in the upper reaches of the upstream of the Tarim River, the relationship between salt and soil available nutrients and the theoretical standard for salted soil fertilization were established. The production capacity of salt\|stained soil cotton was used. Methods studied the accumulation, distribution rules and related relationships of cumulative nutrients in the research area and available nutrients. The results showed that the contents of soil salinity, nitrate nitrogen, and available phosphorus and available potassium in the cotton field of the upper reaches of Tarim River were 1.17~2.44 g·kg-1, 18.9~65.1 mg·kg-1, 1.3~31.2 mg·kg-1 and 64.9~107.9 mg·kg-1, respectively. Among them, the salt separators were mainly Ca2+, Na+ and SO2-4, and the nitrate nitrogen and available potassium contents of 0~40 cm soil were positively correlated with the total salt content, and the spatial distribution of nitrate nitrogen and available potassium content in 0~40 cm soil was relatively consistent, indicating that fertilization could affect the soil salt content in the upper reaches of the Tarim River. Therefore, it is recommended that fertilization should be applied reasonably during the production process to avoid aggravating the problem of soil salinization. |
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