To explore the suitable high-yield and stable-yield cultivation model for the main wheat-producing areas in the Huaihuaihai Plain, this study used the local main variety Jimai 22 as the material and conducted a field experiment in Chengwu County during the winter wheat growing season from 2022 to 2023. The experiment adopted a two-factor design, setting 3 planting densities and 2 nitrogen application levels, totaling 6 treatment combinations, to study their effects on the lodging rate, yield, and its constituent factors of Jimai 22. The results showed that the planting density and nitrogen application level had significant interaction effects on wheat lodging and yield. The treatment of 25×104 plants/667 m2 basic population combined with 18 kg/667 m2 nitrogen fertilizer achieved a balance between high yield and resistance to lodging, with a yield of 525.36 kg/667 m2 and a lodging rate controlled at 8.34%. The study provided theoretical basis and technical support for the high-yield and stable-yield cultivation of wheat in Chengwu County.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |