通过试验探明不同生物菌肥在温室辣椒生产中的适宜种类与用量，为辣椒的高产优质化生产提供理论依据。以辣椒品种陇椒6号为试材，设置了施用赛施乐、微生物菌剂、菌护盾、甲壳素、线控1等5个生物菌肥处理，研究了不同生物菌肥对辣椒光合特性、产量和品质的影响。结果表明，生物菌肥菌护盾30.0 kg/hm2处理辣椒的光合代谢能力最强，植株的光合速率、胞间CO₂浓度分别为18.32、232.00 μmol/(m2·s)，分别较对照不施生物菌肥增加4.81、48.00 μmol/(m2·s)；蒸腾速率、气孔导度分别为6.57、315.00 mmol/(m2·s)，分别较对照不施生物菌肥增加3.04、48.00 mmol/(m2·s)。与对照不施生物菌肥相比，辣椒的株高、茎粗、开展度分别增加21.99、0.53、14.61 cm；单株产量增加0.23 kg，折合产量增加8.92 t/hm2；辣椒果实的品质也最优，可溶性糖、可溶性固形物、维生素C、可溶性蛋白与游离氨基酸含量均显著高于其他处理。综上所述，在温室辣椒生产中采用生物菌肥菌护盾30.0 kg/hm2，可有效提高辣椒的产量与品质。

An experiment was conducted to identify the suitable type and dosage of biofertilizer in greenhouse chili pepper production, providing a theoretical basis for high-yield and high-quality cultivation. Using the pepper variety Longjiao 6 as material, 5 treatments with different biofertilizers, Saixie, microbial agent, bacterial shield, chitin, and line control 1, were applied to study their effects on photosynthetic characteristics, yield, and quality of chili pepper. Results showed that the treatment with bacterial shield biofertilizer at 30.0 kg/ha exhibited the strongest photosynthetic metabolism capacity. The photosynthetic rate and intercellular CO₂ concentration of pepper plants reached 18.32 and 232.00 μmol/(m2·s), increasing by 4.81 and 48.00 μmol/(m2·s), compared with the control without biofertilizer. The transpiration rate and stomatal conductance were 6.57 and 315.00 mmol/(m2·s), respectively, 3.04 and 48.00 mmol/(m2·s), higher than those in the control. Compared with no biofertilizer, plant height, stem diameter, and canopy width increased by 21.99 cm, 0.53 cm, and 14.61 cm, respectively, single-plant yield increased by 0.23 kg, equivalent to a yield increase of 8.92 t/ha. Fruit quality was also optimal under this treatment, with significantly higher contents of soluble sugar, soluble solid, vitamin C, soluble protein, and free amino acid compared with other treatments. In conclusion, applying bacterial shield biofertilizer at 30.0 kg/ha in greenhouse chili pepper production can effectively improve both yield and quality.

S641.3；S147.2

张掖市科技计划-技术研究开发专项(ZY2023JS18)；甘肃省农业农村厅科技支撑项目(KJZC-2024-27)。