Optimizing Fertilizer Management Practices in Summer Maize Fields in the Yellow River Basin

نویسندگان

چکیده

This study aims to examine the impact of combined irrigation and fertilizer control on summer maize yield, nitrogen use efficiency (NE), leaching (NL) in Yellow River Basin. Based measured data from field experiment 2021 2022, a water-nitrogen movement model was constructed for ‘Zhengdan 958’ under two methods (wide furrow (G) border (Q)), three rates (120 kg/ha (N1), 220 (N2), 320 (N3)), frequencies (1 (T1), 2 (T2), 3 (T3)), yielding 18 total treatments. Calculation based water transport modeling. The then analyzed factors their effects. A multi-objective optimization genetic algorithm (NSGA-II) established evaluate efficiency, leaching. results indicate that determination coefficients between simulated water, values exceeded 0.74. rate optimized HYDRUS effectively soil solute movement. interaction method, rate, application frequency did not significantly affect yield leaching, but (p < 0.05). Nitrogen increased gradually as increased. wide 6.26% higher than irrigation. optimal coupling scheme obtained using where GN2T2 treatment management model, reached 14,077 kg/ha, were reduced 30.21 kg·kg−1 17.64 respectively. These findings can guide cultivation Basin assist reducing surface source pollution.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2023

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy13092236