不同品种饲用大豆农艺特征及其还田的土壤养分和酶活性效应

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中图分类号：S158；S542.9 文献标识码：A 文章编号：1007-0435（2025）08-2512-09

doi：10.11733/j.issn.1007-0435.2025.08.011

Abstract：This study aimed to observe the agronomic characteristicsofdiferent varieties offorage soybeans and their effectsonsoil improvement through return to field，as well as toanalyze the fertilization efects，with the goal of identifying more green manure resources for soil improvement. The varieties used as green manure materials were‘SOOl Forage Hybrid Wild Soybean’（SOOl），‘Inner Agricultural SOO2 Forage Soybean’（SO02）， ‘Mengnong SO03 Forage Soybean’（SO03），‘Mengnong SO04 Forage Soybean’（SO04），‘Mengnong S005 Forage Soybean’（SOO5），and‘Mengnong SOo6 Forage Soybean’（SOo6）．with tilage as the control （CK）. The field experiment was conducted in early May 2O23 at the M-Grass Seed Industry Center Experimental Field in Hohhot.The forage soybeans were plowed into the soil during the peak flowering stage，and after the decomposition soil samples were randomly collected from the 20cm depth to determine nutrient contents and soil enzyme activities. The results showed that the incorporation of forage soybeans significantly increased soil nutrient contents ⋅P<0.05 ，with a decrease in soil pH by O.86 to O.95. The activities of soil sucrase，peroxidase，phosphatase，and urease significantly increased ⋅P<0.05） ，with increases ranging from 52.9% to 67.9% ，1. 3% to 6.1% ， 8.1% to 42.5% and 21. 0% to 56.6% ，respectively. In conclusion，different varieties of forage soybeans used as green manure significantly improved soil nutrient contents and enzyme activities， with SO01，SOO04，and SOO5 treatments performing particularly beter in improving soil structure，reducing bulk density，and lowering pH.

Key words：Forage soybean;Agronomic traits;Incorporation;Soil physicochemicalproperties;Soil enzyme activity

随着全球人口增长和粮食需求的持续增加，如何实现农业生产的可持续发展已成为全世界普遍关注的重大问题。（剩余13373字）