Combining magnetized water with biodegradable film mulching reshapes soil water-salt distribution and affects processing tomatoes' yield in the arid drip-irrigated field of Northwest China

作者：Zhenpeng Zhou, Jian Liu, Jinzhu Zhang, Wenhao Li, Yue Wen, Rui Chen, Pengpeng Chen, Haiqiang Li, Xuehui Gao, Yan Zhu, Zhenhua Wang · 发表于：Agricultural Water Management · 年份：2024 · DOI：10.1016/j.agwat.2024.109021 · 被引用次数：12 · 研究领域：Magnetic and Electromagnetic Effects、Greenhouse Technology and Climate Control、Plant Stress Responses and Tolerance

In arid areas, biodegradable film has recently had the potential to replace polyethylene (PE) film to address plastic pollution. However, the positive effect of biodegradable film on soil moisture and salt control is weaker than that of PE film. Magnetized irrigation water technology is expected to compensate for this limitation. This study comprised a field experiment in 2021 2023 to study how two types of biodegradable film (M1, black; M2, transparent) and six magnetization intensity on irrigation water (T0, 0 Gs; T1, 1000 Gs; T2, 2000 Gs; T3, 3000 Gs; T4, 4000 Gs; T5, 5000 Gs) affect the degradation rate of biodegradable film, soil water salt distribution, growth, and quality of processing tomatoes. The traditional PE film mulching and non-magnetized irrigation were used as the control group (M PE T0). The results demonstrated that magnetized water irrigation slowed down the degradation rate of biodegradable film. In addition, the magnetized irrigation water can redistributed the soil water-salt patterns under the biodegradable film, improving the soil water content and salt leaching efficiency, with better results in M1 than in M2. Moreover, magnetized water irrigation promoted the growth of tomato leaf area under the biodegradable film, enhancing photochemical efficiency and potential activity of PSII, thereby improving fruit yield, quality, and water use efficiency of tomato. Principal component analysis showed that the comprehensive score of M1T3 treatment was the high...