Minaduola et al. (2026) Regulation of Soil Water–Salt Dynamics and Cotton Growth in Saline Cotton Fields Through Optimization of Drip Emitter Parameters and Irrigation Quotas

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Identification

• Journal: Agronomy
• Year: 2026
• Date: 2026-09-05
• Authors: Milixiati Minaduola, Youyang Luo, Xiangwen Xie, Wanli Xu, Feng Ding, Renna Sa
• DOI: 10.3390/agronomy16171730

Research Groups

• Institute of Soil Science, Chinese Academy of Sciences
• Key Laboratory of Arid Agroecology, Northwest A&F University

Short Summary

This study investigates the synergistic effects of emitter parameters and irrigation quotas on water-salt regulation and cotton growth in a salinized field. The results provide a quantitative basis for optimizing drip irrigation system parameters to enhance water use efficiency and yield in saline cotton fields.

Objective

• Investigate the impact of emitter flow rates, spacings, and irrigation quotas on water-salt regulation and cotton growth in a salinized field.

Study Configuration

• Spatial Scale: Field-scale experiment in Xinjiang arid region.
• Temporal Scale: Data collected over one growing season (April to September).

Methodology and Data

• Models used: Optimization model for yield and salt leaching efficiency developed based on experimental data.
• Data sources: Soil water-salt dynamics, cotton growth, and yield responses monitored through field experiments.

Main Results

• Leaching quotas significantly enhanced soil moisture and desalination compared to conventional quotas.
• Emitter parameters (flow rate and spacing) modulated water and salt distribution within the root zone.
• A moderate flow rate of 2.4 L/h combined with a 30 cm spacing created more uniform soil moisture distribution and efficient salt leaching.
• Cotton growth and yield responded markedly to optimal water-salt regulation pattern.

Contributions

• This study provides a quantitative basis for optimizing drip irrigation system parameters in saline cotton fields, enhancing water use efficiency and yield.
• The optimization model developed can be applied to other arid regions with similar soil and climate conditions.

Funding

• National Natural Science Foundation of China (Grant No. 51779200)
• Key Research and Development Program of Xinjiang Uygur Autonomous Region (Grant No. 2018AA101010)

Citation

@article{Minaduola2026Regulation,
  author = {Minaduola, Milixiati and Luo, Youyang and Xie, Xiangwen and Xu, Wanli and Ding, Feng and Sa, Renna},
  title = {Regulation of Soil Water–Salt Dynamics and Cotton Growth in Saline Cotton Fields Through Optimization of Drip Emitter Parameters and Irrigation Quotas},
  journal = {Agronomy},
  year = {2026},
  doi = {10.3390/agronomy16171730},
  url = {https://doi.org/10.3390/agronomy16171730}
}