| Effects of different tillage methods on yield of continuous cropping of Angelica sinensis and soil physicochemical properties |
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| DOI：10.7606/j.issn.1000-7601.2025.04.15 |
| Key Words: tillage methods Angelica sinensis soil physicochemical properties soil quality yield quality |
| Author Name | Affiliation | | FANG Qing | College of Agronomy, College of Life Science and Technology, Gansu Agricultural University, State Key Laboratory of Aridland Crop Science, Lanzhou, Gansu 730070, China | | CHEN Yuan | College of Agronomy, College of Life Science and Technology, Gansu Agricultural University, State Key Laboratory of Aridland Crop Science, Lanzhou, Gansu 730070, China | | GUO Fengxia | College of Agronomy, College of Life Science and Technology, Gansu Agricultural University, State Key Laboratory of Aridland Crop Science, Lanzhou, Gansu 730070, China | | LIANG Wei | College of Agronomy, College of Life Science and Technology, Gansu Agricultural University, State Key Laboratory of Aridland Crop Science, Lanzhou, Gansu 730070, China | | JIANG Xiaofeng | Dryland Agriculture Institute， Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China |
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| Abstract: |
| To address the issue of soil environmental degradation caused by continuous cropping of Angelica sinensis, three tillage methods were evaluated. Traditional tillage to a depth of 20 cm was used as the control (CK), while the experimental treatments included deep tillage to 40 cm (T1), subsoiling to 50 cm (T2), and subsoiling to 60 cm (T3). The study aimed to assess the effects of these different tillage methods on the soil’s physicochemical properties, as well as the yield and quality of Angelica sinensis. The results showed that: (1) Compared with the control (CK), the T1, T2, and T3 treatments effectively reduced the soil bulk density in the 0~60 cm soil layer, while enhancing soil porosity and water content. Notably, the T3 treatment significantly reduced soil bulk density by 6.34%, 12.28%, and 11.18% in the 0~20 cm, 20~40 cm, and 40~60 cm layers, respectively. (2) Compared with CK, T1, T2 and T3 treatments could reduce soil pH, and the soil pH value of 0~20 cm soil layer was significantly reduced by 16.11%, 9.45% and 24.37%, respectively. The content of alkali hydrolysable nitrogen in the 0~20, 20~40 cm and 40~60 cm soil layers of T2 treatment increased significantly by 3.11%, 22.93% and 60.51%, respectively, and the content of available potassium increased significantly by 23.39%, 71.79% and 46.44%, respectively. (3) The T2 treatment exhibited the highest soil quality according to the principal component analysis. (4) The fresh yield, dry yield, extract content, ferulic acid content and ligustilide content of Angelica sinensis in T2 treatment were the highest, which were 114.70%, 110.05%, 24.33%, 14.44% and 38.14% higher than those in CK, respectively. In conclusion, both deep ploughing and subsoiling tillage effectively improve the soil quality of the cultivated layer in continuous Angelica sinensis cropping and enhance its yield and quality, with subsoiling tillage at a depth of 50 cm showing the most significant effect. |
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