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A two-year field experiment was conducted from 2022 to 2023 in Zunyi, Guizhou Province. Five fertilization treatments, no fertilization (T1), farmerʼs habit fertilization, basal application ordinary compound fertilizer 900 kg/ha and topdressing of pure N 45.0 kg/ha during panicle stage (T2), basal application type I fertilizer 1800 kg/ha, no topdressing (T3), basal application type II fertilizer 3000 kg/ha, no topdressing (T4), basal application type III fertilizer 1500 kg/ha and topdressing of pure N 90.0 kg/ha during panicle stage (T5) were set up to study the effects of different organic-inorganic compound fertilizers from distillerʼs grains on sorghum yield, quality, nutrient uptake and utilization. The result showed that compared with T2 treatment, the sorghum yield of T3, T4, and T5 treatment increased by 76.57, 107.57, 164.66 kg/ha and total biomass increased 328.40, 358.98, and 463.54 kg/ha. Compared with T2 treatment, the amylopectin content in sorghum from T3 to T5 treatment increased by 1.13%-7.02% and and tannin content increased by 1.63%-4.35%. Compared with T2 treatment, the nitrogen accumulation of T3, T4 and T5 treatments were increased by 7.27, 6.22, 9.07 kg/ha, the phosphorus accumulation were increased by 1.27, 1.72, 2.47 kg/ha, the potassium accumulation were increased by 13.35, 12.38, 9.15 kg/ha. After harvesting of sorghum, T3, T4 and T5 treatments could all maintain or increase soil nutrient content. The two-year average net benefit of T5 treatment were 45 189.7 yuan/ha, and output/input ratio were 2.679, higher than T2, T3, and T4 treatments. In summary, both the one-time basal application of Type I and Type II and basal application of Type III + topdressing of nitrogen at panicle stage methods could improve the yield, nutrient absorption and utilization, and maintain soil fertility levels. We suggested that when labor is in sufficient, the former is preferred; when labor is sufficient, the latter is an alternative.
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| 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 |
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