Optimization of companion plant fermentation broths and their effect on alleviating ginseng continuous cropping obstacles
The aim of this study was to address the issue of continuous cropping obstacles,including soil deterioration and a decline in ginseng yield,which have arisen from long-term continuous monoculture ginseng cultivation.To this end,two common ginseng-associated plants,beetroot and celandine,were selected to prepare fermentation broth.The fermentation conditions were then optimized.The effects of two companion plant fermentation broths on soil physical and chemical properties and enzyme activities were investigated through pot experiments,and the growth status of ginseng seedlings was evaluated.The results showed that the optimal conditions for the preparation of the two plant fermentation broths were a rotation speed of 200 r/min,a fermentation temperature of 37 ℃,a pH of 7,and a fermentation time of 24 h.At the same time,both plant fermentation broth treatments significantly enhanced soil fertility and ginseng growth,with the improvement effect of the celandine fermentation broth being more obvious.The application of companion plant fermentation broths can enhance the soil nutrient structure,improve the quality of ginseng to a certain extent,and alleviate the impact of continuous cropping.
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