Effects of fluridine application rates on soil microbial environment，disease resistance and yield of Chinese cabbage in facility soil

doi:10.16178/j.issn.0528-9017.20250159

Abstract

Abstract:

This study investigated the effects of different fluridine application rates in greenhouse facilities on soil microbial environment and Chinese cabbage growth. Results demonstrated that fluridine exhibited antibacterial effects on soil microorganisms，particularly pronounced against actinomycetes and fungi，with a clear negative correlation between total soil microbial biomass and fluridine application rates. Fluridine application reduced the activity of soil urease，protease，and dehydrogenase，while enhancing phosphatase activity. Notably，a fluridine rate of 6.0 L·hm^-2 showed the most effective control of Chinese cabbage root swelling disease，followed by 3.0 and 4.5 L·hm^-2. As application rate of fluridine increased，Chinese cabbage yield exhibited a "initial increase followed by decline" trend，with the highest yield achieved at 1.5 L·hm^-2 treatment，showing a 22.2% increase compared with the control. In summary，the optimal fluridine application rate for greenhouse vegetables production is 1.5-3.0 L·hm^-2.

Key words: fluridine, soil microbial environment, Chinese cabbage, disease resistance, yield

CLC Number:

S156

SU Guijun, CHENG Jingwen, LOU Ling, PANG Yinghua, GU Wanfan, SHEN Jianguo, CHEN Haoran. Effects of fluridine application rates on soil microbial environment，disease resistance and yield of Chinese cabbage in facility soil[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(5): 1286-1289.

Figures/Tables 5

References 14

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处理	细菌数量	放线菌数量	真菌数量	合计
1（CK）	34.05	53.00	7.75	94.80
2	28.70	33.76	6.55	69.01
3	28.25	32.65	6.15	67.05
4	29.05	30.90	3.60	63.55
5	29.80	20.15	3.40	53.35

处理	细菌数量	放线菌数量	真菌数量	合计
1（CK）	34.05	53.00	7.75	94.80
2	28.70	33.76	6.55	69.01
3	28.25	32.65	6.15	67.05
4	29.05	30.90	3.60	63.55
5	29.80	20.15	3.40	53.35

处理	脲酶活性/（mg·g^-1·d^-1）	蛋白酶活性/（μg·g^-1·d^-1）	磷酸酶活性/（mg·g^-1·d^-1）	脱氢酶活性/（μg·g^-1·d^-1）
1（CK）	0.415	267.5	2.748	100.26
2	0.380	153.0	3.045	87.88
3	0.380	140.0	3.137	89.90
4	0.275	127.5	3.176	77.62
5	0.325	135.0	3.284	81.48

处理	脲酶活性/（mg·g^-1·d^-1）	蛋白酶活性/（μg·g^-1·d^-1）	磷酸酶活性/（mg·g^-1·d^-1）	脱氢酶活性/（μg·g^-1·d^-1）
1（CK）	0.415	267.5	2.748	100.26
2	0.380	153.0	3.045	87.88
3	0.380	140.0	3.137	89.90
4	0.275	127.5	3.176	77.62
5	0.325	135.0	3.284	81.48

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