| Effects of nitrogen and irrigation coupling on dry matter accumulation and yield of Astragalus membranaceus var. Mongholicus |
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| DOI：10.7606/j.issn.1000-7601.2021.02.17 |
| Key Words: nitrogen and irrigation coupling Astragalus membranaceus var. Mongholicus dry matter accumulation characteristic yield the content of astragaloside |
| Author Name | Affiliation | | WEI Tingbang | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | WEI Yujie | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | WEI Yubin | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | SU Yujie | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | CHANG Ying | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | BING Jing | Wuwei Center for Disease Control and Prevention Division of Infectious Diseases, Wuwei, Gansu 733000, China | | CHEN Zhiguo | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China | | CHEN Fang | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | GONG Yongfu | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | WU Lingling | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | ZHANG Zhaoping | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | ZANG Guangpeng | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China | | ZHANG Yingying | Gansu Provincial Institute of Agricultural Engineering and Technology, Wuwei, Gansu 733006, China
Gansu Key Laboratory of Plant Germplasm Innovation and Safety Utilization of Special Drug Sources, Wuwei, Gansu 733006, China
Wuwei Technology Innovation Center of Genuine Medicinal Materials Ecological Cultivation In Qilian Mountain Area, Wuwei, Gansu 733006, China |
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| Abstract: |
| Dry matter accumulation characteristics, yield, and effective component content of Astragalus membranaceus were determined under a one-year field experiment in 2018. In this research, the cultivar “annual astragalus membranaceus” was used as research material. The experimental design was a split plot including three irrigation application rates treatments namely (W1) 3 200 m3·hm-2, (W2) 3 600 m3·hm-2, and (W3) 4 000 m3·hm-2 as the main plot, respectively, four nitrogen (N) application rates namely (N0) 0 kg·hm-2, (N1) 50 kg·hm-2, (N2) 100 kg·hm-2, and (N3) 150 kg·hm-2， respectively, as the split plot. The results showed that, the interaction effect of irrigation and N fertilizer application rates had significant influence on the maximum dry matter accumulation rate and emergence days of maximum dry matter accumulation rate and yield and content of astragaloside of astragalus membranaceus duration (p<0.05). Under the reduced 20% irrigation in growth stages (W1) of astragalus membranaceus, compared with CK (N0), low N application (N1), and high N application treatments (N3), the maximum dry matter accumulation rate with medium N application treatments (N2) increased by 16.08%, 9.96%, and 7.75%, respectively; the emergence days of maximum dry matter accumulation rate with medium N application treatments (N2) shortened by 6.07, 8.14, and 8.15 days, the yield and content of astragaloside with medium N application treatments (N2), increased by 186.32%, 11.99%, and 33.11% and 167.03%, 50.93%, and 24.94%, respectively. Under the medium N application treatments (N2) of astragalus membranaceus, compared with the reduced 10% irrigation (W2) and conventional irrigation (W3) in growth stages, the maximum dry matter accumulation rate with the reduced 20% irrigation treatments (W1) increased by 8.41% and 12.65%, respectively. The emergence days of maximum dry matter accumulation rate with the reduced 20% irrigation treatments (W1) shortened by 5.36 and 6.90 days, the content of astragaloside with the reduced 20% irrigation treatments (W1) increased by 17.11% and 74.82%. The treatments with application coupling of irrigation and N (i.e. reduced 20% irrigation of growth period (W1) 3200 m3·hm-2 and N application with 100 kg·hm-2 at growth stage of Astragalus membranaceus) could be considered as the best feasible cultivation pattern management for further exploring the condition of enhancing dry matter accumulation and dry matter accumulation rate and yield and effectively improve quality of Astragalus membranaceus. |
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