| Effects of combined application of vermicompost and chemical fertilizers on growth and quality of adzuki bean |
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| DOI：10.7606/j.issn.1000-7601.2022.02.22 |
| Key Words: adzuki bean vermicompost combined with chemical fertilizer production grain quality antioxidant capacity |
| Author Name | Affiliation | | LIU Xiang | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China | | ZHOU Jie | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China | | DENG Jinhua | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China | | YE Aiping | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China | | ZHENG Xi | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China | | ZHANG Lixin | College of life sciences, Northwest A & F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| A new adzuki bean variety Baohong 947 was taken as the research object to explore the effect of vermicompost and chemical fertilizer on the production and quality of adzadzia bean in Guanzhong area of Shaanxi Province. The experiment included five treatments of T1 (pure fertilizer), T2 (20% vermicompost +80% fertilizer), T3 (50% vermicompost +50% fertilizer), T4 (80% vermicompost +20% fertilizer) and CK (no fertilizer). The differences of agronomic characters, yield characters and quality characters of adzuki bean at maturity under different treatments were studied. The results showed that vermicompost combined with chemical fertilizer significantly improved the agronomic traits such as plant height and leaf area. T2 treatment had the best effect. Compared with CK, plant height and leaf area were increased by 42.52% and 20.54%, respectively, which were better than that of pure chemical fertilizer treatment. Compared with CK and T1, the soluble protein content in T2 treatment was increased by 71.87% and 19.34%, respectively. Compared with CK and T1 treatment, the soluble sugar content in T4 treatment was increased by 47.93% and 37.20%, respectively. In addition, vermicompost treatment also increased the effective components to varying degrees. The total triterpenoids and γ -aminobutyric acid contents of T2 treatment were increased by 50.00% and 96.44%, respectively, when compared with CK, which were higher than those of pure chemical fertilizer treatment. T2 treatment showed the best performance in improving DPPH free radical and hydroxyl free radical scavenging ability and total antioxidant capacity of adzuki bean, which was increased by 151.78% and 135.76% compared with CK and T1 treatment, respectively. The total triterpenoid content and γ -aminobutyric acid content in adzuki bean were significantly positively correlated with DPPH radical scavenging rate and total antioxidant capacity (P<0.01). Vermicompost combined with chemical fertilizer improved the amino acid content of adzuki bean to a certain extent, and the amino acid content of T2 treatment increased by 43.64% and 7.30% compared with CK and T1, respectively. The results showed that 20% vermicompost combined with 80% chemical fertilizer resulted in a better yield and quality of adzuki bean. |
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