Effects of reduced chemical fertilization on the cauliflower growth and soil properties

doi:10.16178/j.issn.0528-9017.20250292

Abstract

Abstract:

Cultivating watermelon-cauliflower on ridge fields is an effective measure for improving coastal saline soils, yet excessive fertilizer application remains an issue. This study, based on cauliflower cultivation in ridge fields within the coastal saline soil area of Ruian City, compared the effects of conventional fertilization with three reduced chemical fertilization treatments on cauliflower yield, nutrient uptake, and soil properties. The results indicated that a 20% reduction in nitrogen, phosphorus, and potassium fertilizers did not significantly decrease cauliflower yield or the content of N, P, and K. While no significant differences in soil pH value or major nutrient content were observed among fertilization treatments. The treatment with significantly (P<0.05) increased soil organic matter content while reducing total salt content and electric conductivity. In coastal saline soil areas, cauliflower cultivation can achieve a 20% reduction in fertilizer usage compared with slow-release fertilzer conventional fertilization without compromising yield or nutrient absorption. The application of slow-release fertilizers also shows potential for improving soil quality and reducing salinity, providing a basis for regional fertilizer reduction and efficiency enhancement.

Key words: cauliflower, coastal saline soil, fertilizer reduction, slow-release fertilizer, soil improvement

CLC Number:

S146

FAN Kedi, WANG Xuefeng, MA Liya, HU Zefan, YE Xuezhu, YE Tingyun, CHEN De. Effects of reduced chemical fertilization on the cauliflower growth and soil properties[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(10): 2368-2371.

Figures/Tables 3

References 10

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处理	pH值	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	碱解氮含量/ (mg·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (g·kg^-1)	全盐量/ (g·kg^-1)	电导率/ (mS·cm^-1)
CG	8.21±0.27 a	12.79±0.73 b	0.87±0.05 a	0.76±0.07 a	49.5±10.7 a	20.6±1.7 a	0.34±0.03 a	1.09±0.45 a	0.33±0.12 a
YH	8.29±0.29 a	13.05±0.56 b	0.86±0.03 a	0.74±0.07 a	48.6±17.7 a	20.7±1.2 a	0.32±0.03 a	0.89±0.31 ab	0.24±0.04 b
BM	8.19±0.10 a	13.23±0.80 ab	0.87±0.05 a	0.76±0.06 a	55.5±12.9 a	23.0±4.1 a	0.31±0.10 a	0.88±0.23 ab	0.31±0.06 a
HS	8.33±0.09 a	14.67±1.17 a	0.96±0.07 a	0.80±0.06 a	56.2±5.9 a	22.8±4.1 a	0.35±0.04 a	0.42±0.04 b	0.15±0.02 b

处理	pH值	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	碱解氮含量/ (mg·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (g·kg^-1)	全盐量/ (g·kg^-1)	电导率/ (mS·cm^-1)
CG	8.21±0.27 a	12.79±0.73 b	0.87±0.05 a	0.76±0.07 a	49.5±10.7 a	20.6±1.7 a	0.34±0.03 a	1.09±0.45 a	0.33±0.12 a
YH	8.29±0.29 a	13.05±0.56 b	0.86±0.03 a	0.74±0.07 a	48.6±17.7 a	20.7±1.2 a	0.32±0.03 a	0.89±0.31 ab	0.24±0.04 b
BM	8.19±0.10 a	13.23±0.80 ab	0.87±0.05 a	0.76±0.06 a	55.5±12.9 a	23.0±4.1 a	0.31±0.10 a	0.88±0.23 ab	0.31±0.06 a
HS	8.33±0.09 a	14.67±1.17 a	0.96±0.07 a	0.80±0.06 a	56.2±5.9 a	22.8±4.1 a	0.35±0.04 a	0.42±0.04 b	0.15±0.02 b

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