为明确甘州区蔬菜生产中应用较广的不同生物菌剂对娃娃菜产量的影响，在河西走廊甘州区布设大田试验，以单施化肥(尿素375 kg/hm2、重过磷酸钙241.5 kg/hm2和硫酸钾300 kg/hm2)为对照，设置了化肥增施碳酶硅钙生物菌肥、活菌重茬克、懒到底、土康源微生物菌剂等4个不同生物菌肥处理，生物菌肥用量均为30 kg/hm2，测定了不同生物菌肥对娃娃菜光合特性、过氧化物酶等抗氧化酶活性及其产量构成的影响。结果表明，增施不同生物菌肥较单施化肥显著增产5.10%~30.61%，其中增施土康源微生物菌剂30 kg/hm2处理产量最高，为128.06 t/hm2。光合特性以增施土康源微生物菌剂30 kg/hm2处理最好，其中叶片净光合速率为15.64 μmol/m2·s，蒸腾速率为7.89 mmol/(m2·s)，气孔导度为348 mmol/(m2·s)，胞间CO₂浓度为366 μmol/(m2·s)，较单施化肥分别增加155.56%、113.82%、190.00%、65.61%。同时，该处理的娃娃菜叶片数(39.65片)、横径(28.74 cm)、纵径(36.54 cm )均显著高于其他处理；其可溶性蛋白含量、过氧化物酶以及超氧化物歧化酶的活性也高于其他处理，且显著降低了丙二醛含量。因此，在甘州区娃娃菜生产中，增施土康源生物菌肥30 kg/hm2可提高娃娃菜光合效率，促进植株生长发育，助力娃娃菜产量提升。

To clarify the effects of different microbial inoculants on the yield of baby Chinese cabbage in vegetable production in Ganzhou District, a field experiment was conducted in the Hexi Corridor's Ganzhou District. The control treatment applied only chemical fertilizers(urea at 375 kg/ha, superphosphate at 241.5 kg/ha, and potassium sulfateat 300 kg/ha), while 4 treatments added different biofertilizers, i.e., carbon enzyme silicon calcium biofertilizer, live bacteria continuous cropping gram, lazy to the end, and Tukangyuan microbial agent, each at 30 kg/ha, in addition to the chemical fertilizers. The study determined the effects of the biofertilizers on photosynthetic characteristics, antioxidant enzyme activities (e.g., peroxidase), and yield components. Results showed that adding different biofertilizers significantly increased yield by 5.10% to 30.61% compared with the chemical fertilizer control, with the Tukangyuan microbial agent treatment at 30 kg/ha achieving the highest yield of 128.06 t/ha. In terms of photosynthetic characteristics, the Tukangyuan treatment performed best, with a net leaf photosynthetic rate of 15.64 μmol/(m2·s), transpiration rate of 7.89 mmol/(m2·s), stomatal conductance of 348 mmol/(m2·s), and intercellular CO₂ concentration of 366 μmol/(m2·s), an increase of 155.56%, 113.82%, 190.00%, and 65.61%, respectively, over the control. Additionally, this treatment produced the highest leaf number (39.65), horizontal stem length (28.74 cm), and vertical stem length (36.54 cm), its protein content, peroxidase activity, and superoxide dismutase activity were also higher than those in other treatments, while malondialdehyde content was significantly reduced. Therefore, in Ganzhou District, applying 30 kg/ha of Tukangyuan microbial agent can improve photosynthetic efficiency, promote plant growth and development, and enhance baby Chinese cabbage yield.

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