Abstract:

Using a control group without soil conditioner application, this study compared the effects of two acidic soil conditioners on facility vegetables. The results showed that applying acidic soil conditioners improved the agronomic traits of Brassica rapa, increased its biomass yield, and enhanced planting benefits. Additionally, the soil pH value was elevated, mitigating soil acidification after application of acidic soil onditioners. In terms of vegetable yield and economic benefits, the application of Tuaobao soil conditioner demonstrated superior performance, achieving a 17.9% yield increase compared with the control and raising comprehensive benefits by 13 020.3 yuan·hm^-2. The Tianshifu soil conditioner also showed notable effects, with a 12.8% yield increase and an additional benefit of 9 061.2 yuan·hm^-2. Regarding soil pH value improvement, Tianshifu exhibited better efficacy, increasing soil pH value by 0.5 and reducing soil exchangeable acid content by 48.1% compared with the control. The study also revealed that applying soil conditioners in greenhouse vegetable cultivation contributed to controlling the occurrence of Brassica rapa clubroot disease.

Key words: acidic soil conditioner, greenhouse vegetables, soil improvement, application effect