Abstract:

To explore the application effect of biological nano-selenium fertilizer replacing partial chemical fertilizers in the actual production of cherry tomatoes, this study conducted field experiments using Zheyingfen 1 as the tested tomato variety. Through the comprehensive analysis of the growth status, yield and fruit quality of cherry tomato plants, the optimal proportion of biological nano-selenium fertilizer replacing chemical fertilizers was screened. The results showed that the replacement of chemical fertilizer with biological nano-selenium fertilizer had positive effects on plant growth, fruit quality and yield of cherry tomato, among which the application effects of biological nano-selenium fertilizer replacing 70% of chemical fertilizers was the best. Compared with the control group, the plant height increased by 13.46%, the yield increased significantly (p<0.05) by 33.51%, and the single fruit weight increased by 26.32%. Moreover, the qualities of soluble solid content, soluble sugar content, vitamin C content and selenium content were effectively improved. The results of this study provide reference for reducing fertilizer usage and increasing efficiency in the production process of cherry tomatoes.

Key words: cherry tomato, biological nano-selenium fertilizer, quality evaluation, yield