新型肥料微碳液肥和微藻肥对辣椒生长、产量及基质养分的影响OA

To explore the effects of different new-type fertilizers on pepper growth,quality,yield and cultivation substrate,a pot experiment was conducted using the pepper variety'Jiaolong 12'.Four treatments were established including fullerene(Treatment 1),Geyi micro-carbon liquid fertilizer(Treatment 2),Spanish microalgae energy fertilizer(Treatment 3)and a no-fertilizer control.The results showed that Treatments 3 and Treatments 2 significantly promoted pepper growth,with stem diameters increasing by 23.3％and 19.1％compared to the control,respectively,and chlorophyll contents increasing by 4.1％and 6.1％,respectively.However,no significant differences in plant height were observed among treatments.In terms of fruit quality,the soluble solid content,soluble dietary fiber content and vitamin C content of treatments ranked as Treatment 3＞Treatment 2＞Treatment 1＞control.Treatment 3 achieved the highest,reaching 7.10％,40.4 g/kg and 226.0 mg/kg,respectively,representing significant increases of 19.7％,18.8％and 11.7％compared to the control.In terms of yield,treatment 3 achieved a yield of 1 302 kg per 667 m2,representing a significant increase of 24.7％compared to the control,significantly outperforming treatment 1 but showing no significant difference from treatment 2.All fertilization treatments alleviated nutrient depletion in the cultivation substrate.Among them,treatment 3 was the most effective in enhancing organic matter content,hydrolyzable nitrogen content,available potassium content,available phosphorus content and total nitrogen content,with significant increases of 90.9％,36.8％,145.3％,15.6％and 0.202 percentage point compared to the control,respectively.In summary,the Spanish microalgae energy fertilizer effectively promotes pepper growth,significantly improves fruit quality and yield,and notably enhances the nutrient status of the cultivation substrate,demonstrating the best overall performance and thus can be recommended for application in pepper production.