数字农科院2.0

Response of Triticum Vulgare Growth and Nitrogen Allocation to Irrigation Methods and Regimes under Subsoiling Tillage

文献类型： 外文期刊

作者： Chao Huang;Xuchen Liu;Yang Gao;Haiqing Chen;Shoutian Ma;Anzhen Qin;Yingying Zhang;Zile Gao;Yan Song;Jinkai Sun;Zhandong Liu

作者机构：

关键词： biomass transfer amount;drip/micro-sprinkler irrigation;irrigation regime;nitrogen accumulation;winter wheat

期刊名称： Agronomy

ISSN： 2073-4395

年卷期： 2024 年 14 卷 4 期

页码：

收录情况： SCIE（2024版）

摘要： Subsoiling tillage breaks up the shallow plow layer and thickened plow pan resulting from prolonged crop rotation, thus enhancing the soil tillage layer environment and fostering crop growth. However, these changes in tillage practices are not accompanied by corresponding advancements in irrigation technology. Therefore, this study compared drip irrigation (DI) and micro-sprinkler irrigation (MS) with three watering levels (H, M, L) based on soil water content (70%, 60%, 50% of field capacity) against traditional surface irrigation (CK, 70%FC) to find the most suitable irrigation approach for subsoiling wheat fields. This study found that adjusting irrigation methods and regimes significantly impacted wheat growth and yield. Drip irrigation boosts winter wheat grain yield, harvest index, biomass transfer amount, biomass transfer rate, nitrogen accumulation, nitrogen use efficiency, and nitrogen harvest index significantly compared to surface and micro-sprinkler methods. Drip irrigation, notably the DI-M treatment, significantly enhances winter wheat grain yield by 28.7% compared to CK. Drip irrigation produced optimal results when soil water levels decreased to 60% of the field capacity. This suggests adopting a combination of DI, with irrigation initiated at 60% of field capacity, for enhanced wheat production and resource efficiency.

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