Effects of kitchen waste tail liquid on yield and quality of vegetable sweet potato
In order to promote the resource utilization of kitchen waste and improve the pollution of anaerobic fermentation to the environment,Kitchen waste tail liquid was prepared by aerobic fermentation process and the vegetable sweet potato was used as test materials in this study.The experiment was conducted with different amount of kitchen waste tail liquid and chemical fertilizer to explore effect of kitchen waste tail liquid on the yield and quality of vegetable sweet potato.The results showed that the reduction of chemical fertilizer combined with appropriate amount of kit-chen waste tail liquid could improve its quality by increasing the content of protein,flavonoids and polyphenols in leaves,and The highest value of the plant height and yield were presented to A4 treatment,the content of protein and flavonoids were the highest in A5 treatment,followed by A4 treatment;the polyphenol content of leaves was the highest in A3 treatment.Kitchen waste tail liq-uid had a negative effect on the soluble sugar content,no effect on content of VC and nitrite,but could reduce nitrite content by reducing the amount of chemical fertilizer.In general,the yield and quality of vegetable sweet potato could be more improvement when reducing 20%chemical fertil-izer and watering kitchen waste tail liquid each time.
万方数据
维普
