Effects of Different Amounts of Fulvic Acid on Tomato Yield and Quality

doi:10.11923/j.issn.2095-4050.cjas2020-0002

Abstract

Abstract:

In this study, tomato variety ‘Jinpeng M6’ was used as the material and pot experiments were conducted to study the effects of different amounts of fulvic acid on tomato growth, nutrient absorption, carbon and nitrogen metabolism, and yield and quality. The results showed that the dosage of fulvic acid at 30 mg/kg could promote the growth of tomato plants at the seedling stage, increase the root volume and surface area, promote the absorption of nitrogen, phosphorus and potassium, and increase the content of soluble protein, soluble sugar and glutamine synthase, and the indexes of tomato reached the highest value. Compared with the control (fulvic acid was not applied), soluble sugar and vitamin C in tomato increased by 43.9% and 35.4%, respectively, and tomato yield increased by 28.1%. When the amount of fulvic acid was 3000 mg/kg, there was no significant difference of tomato-related indexes between the treatment and the control. Based on material cost and various indexes, the optimal dosage of fulvic acid is 30 mg/kg.

Key words: tomato, fulvic acid, yield, quality, carbon and nitrogen metabolism

LI Jing, LI Shiying, LI Qingsong. Effects of Different Amounts of Fulvic Acid on Tomato Yield and Quality[J]. Journal of Agriculture, 2022, 12(2): 54-59.

Figures/Tables 6

References 37

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处理	分枝数/(枝/株)	叶绿素/(mg/g)	整株干物质重/(g/株)
T1	8.2a	0.9ab	1.6ab
T2	8.5a	1.0ab	1.8ab
T3	8.6a	1.2a	2.0a
T4	8.6a	1.1a	1.9ab
T5	8.1a	0.8 b	1.6b

处理	分枝数/(枝/株)	叶绿素/(mg/g)	整株干物质重/(g/株)
T1	8.2a	0.9ab	1.6ab
T2	8.5a	1.0ab	1.8ab
T3	8.6a	1.2a	2.0a
T4	8.6a	1.1a	1.9ab
T5	8.1a	0.8 b	1.6b

处理	总根长/cm	根系面积/cm²	根系平均直径/nm	根体积/cm³
T1	94.82d	9.60bc	0.77ab	2.14b
T2	105.09c	9.97abc	0.84a	2.18b
T3	129.55a	11.53a	0.85a	2.89a
T4	120.06b	11.07ab	0.82a	2.73a
T5	95.57d	8.72c	0.67b	1.59c

处理	总根长/cm	根系面积/cm²	根系平均直径/nm	根体积/cm³
T1	94.82d	9.60bc	0.77ab	2.14b
T2	105.09c	9.97abc	0.84a	2.18b
T3	129.55a	11.53a	0.85a	2.89a
T4	120.06b	11.07ab	0.82a	2.73a
T5	95.57d	8.72c	0.67b	1.59c

处理	产量/(g/株)	单株结果数/(个/株)	单果重/(g/个)	增产率/%
T1	357.9b	8.0a	44.0ab	—
T2	438.9a	9.5a	46.1a	22.6
T3	458.4a	11.0a	47.4bc	28.1
T4	431.2a	10.8a	38.2d	20.5
T5	367.8b	9.0a	39.1cd	2.8