Effect of Different Fertilizer Application Frequency on Yield and Quality of Tomato

doi:10.11924/j.issn.1000-6850.casb2020-0133

Abstract

Abstract:

The purpose is to determine the suitable frequency of fertilizer application in tomato cultivation, and provide the theoretical support for scientific fertilization. Using tomato cultivar Lycopersicon esculentum Mill. ‘Xi Linmen’ as material, five fertilizer application frequency were set up, in which the total fertilizer quota (N 542.30 kg/hm ², P₂O₅ 212.6 kg/hm², K₂O 680.4 kg/hm²) was the same, and the effect of fertilizer application frequency on tomato yield, quality and substrate nutrient accumulation were studied. The results showed that the tomato yield first increased then decreased with the fertilizer application frequency increase, and the yield of T2 treatment was the highest, up to 157251.64 kg/hm², 18.69% higher than that of CK. Suitable fertilizer application frequency could improve the taste and quality of fruit, the vitamin C content of T3 treatment and lycopene content of T2 treatment reached the highest of 14.16 mg/100 mg, 4.44 mg/100 mg, respectively, and the sugar-acid ratio was the highest in T2 treatment, followed by that of T1 treatment, while that of CK was the lowest. Meanwhile, the fertilizer application frequency significantly increased substrate nutrient accumulation, improved pH and reduced EC value, among which, the contents of total nitrogen, available nitrogen, available phosphorus and available potassium in the substrate increased by 6.25%~31.25%, 1.88%~25.20%, 5.51%~21.50% and 10.34%~27.58%, respectively. In addition, the pH value was 6.22~6.89, EC value was 466.04~763.46 μs/cm, the correlations among substrate nutrient, tomato yield and quality were significant. In summary, suitable fertilizer application frequency could improve the yield and quality of tomato, and the effect of T2 is the best.

Key words: fertilization times, tomato, yield, quality, substrate nutrient

CLC Number:

S641.2
S143

Liu Zhongliang, Gao Luyang, Gao Junjie, Chen Zhen, Yan Weiqiang, Gu Duanyin. Effect of Different Fertilizer Application Frequency on Yield and Quality of Tomato[J]. Chinese Agricultural Science Bulletin, 2021, 37(5): 26-30.

Figures/Tables 4

References 31

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处理	全氮/%	碱解氮/(mg/kg)	有效磷/(mg/kg)	速效钾/(mg/kg)	pH	EC/(μs/cm)
CK	0.48bc	356.30c	124.39c	491.56d	6.22b	763.46a
T1	0.56ab	362.99bc	151.13a	622.33a	6.89a	535.74c
T2	0.63a	446.10a	140.15ab	627.12a	6.59ab	679.13b
T3	0.51bc	400.44b	131.25bc	542.38b	6.89a	466.04d
T4	0.42c	354.89c	122.23c	581.40ab	6.74ab	555.22c

处理	全氮/%	碱解氮/(mg/kg)	有效磷/(mg/kg)	速效钾/(mg/kg)	pH	EC/(μs/cm)
CK	0.48bc	356.30c	124.39c	491.56d	6.22b	763.46a
T1	0.56ab	362.99bc	151.13a	622.33a	6.89a	535.74c
T2	0.63a	446.10a	140.15ab	627.12a	6.59ab	679.13b
T3	0.51bc	400.44b	131.25bc	542.38b	6.89a	466.04d
T4	0.42c	354.89c	122.23c	581.40ab	6.74ab	555.22c

指标	全氮	碱解氮	有效磷	速效钾	pH	EC
产量	0.72	0.69	0.70	0.91^*	-0.03	-0.42
番茄红素	0.98^**	0.88^*	0.70	0.58	0.59	0.07
Vc	0.86^*	0.69	0.86^*	0.74	0.29	-0.38
可溶性糖	0.83^*	0.45	0.98^**	0.77	0.24	-0.28
糖酸比	0.89^*	0.64	0.91^*	0.85^*	0.25	-0.22

指标	全氮	碱解氮	有效磷	速效钾	pH	EC
产量	0.72	0.69	0.70	0.91^*	-0.03	-0.42
番茄红素	0.98^**	0.88^*	0.70	0.58	0.59	0.07
Vc	0.86^*	0.69	0.86^*	0.74	0.29	-0.38
可溶性糖	0.83^*	0.45	0.98^**	0.77	0.24	-0.28
糖酸比	0.89^*	0.64	0.91^*	0.85^*	0.25	-0.22