Lei Qingyuan, Tao Wanghai, Yang Fan, Liu Jianqi, Xi Zixuan, Wang Quanjiu, Deng Mingjiang
State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, China.
Front Plant Sci. 2025 Jan 16;15:1497806. doi: 10.3389/fpls.2024.1497806. eCollection 2024.
Seeking effective improvement agent control measures to enhance the photosynthetic physiological traits and yield levels of spring maize is crucial for efficient green agriculture in arid regions. Therefore, this study was conducted to clarify the effects of coupling improvement agents under magnetoelectric activated water irrigation conditions on the photosynthetic physiological traits, grain nutrients, and yield of spring maize in the arid region of northwest China. Field experiments were set up with three concentrations of growth regulators: 400 times (G1), 500 times (G2), and 600 times (G3), and three amounts of : 15 kg/ha (R1), 45 kg/ha (R2), and 75 kg/ha (R3), along with a control group CK, making a total of 10 treatments applied in the field experiment. The results indicate that under magnetoelectric activated water irrigation, coupling improvement agents significantly enhance the photosynthetic traits, grain nutrients, and yield of spring maize in arid areas. With the coupling of improvement agents, the rectangular hyperbola correction model showed a good fit for the light response curve ( >0.992). was significantly increased (7.37%~37.46%) and was highly correlated with yield (). The entropy-weight TOPSIS comprehensive evaluation analysis found that the G2R2 treatment is the optimal improvement agent coupling measure for efficient production of spring maize in arid regions. This treatment yielded 12.68 t/ha and increased 100-kernel weight, grains per spike, and soluble sugar content by 21.3%, 8.22%, and 63.81%, respectively, representing the best balance of quality and high yield. The results of this study provide theoretical references and technical support for the high-quality and efficient production of spring maize in China's arid regions.
寻求有效的改良剂调控措施以提高春玉米光合生理特性和产量水平，对于干旱地区高效绿色农业至关重要。因此，本研究旨在阐明磁电活化水灌溉条件下耦合改良剂对中国西北干旱地区春玉米光合生理特性、籽粒养分及产量的影响。田间试验设置了三种浓度的生长调节剂：400倍液（G1）、500倍液（G2）和600倍液（G3），以及三种用量：15 kg/ha（R1）、45 kg/ha（R2）和75 kg/ha（R3），并设置了对照组CK，田间试验共设10个处理。结果表明，在磁电活化水灌溉条件下，耦合改良剂显著提高了干旱地区春玉米的光合特性、籽粒养分及产量。随着改良剂的耦合，直角双曲线修正模型对光响应曲线拟合良好（>0.992）。显著增加（7.37%~37.46%），且与产量高度相关（）。熵权TOPSIS综合评价分析发现，G2R2处理是干旱地区春玉米高效生产的最佳改良剂耦合措施。该处理产量为12.68 t/ha，百粒重、穗粒数和可溶性糖含量分别提高了21.3%、8.22%和63.81%，实现了品质与高产的最佳平衡。本研究结果为我国干旱地区春玉米的优质高效生产提供了理论参考和技术支持。
