Effects of replacing chemical fertilizers with organic fertilizers on soil properties, yield and quality of Ipomoea batatas

doi:10.16178/j.issn.0528-9017.20231026

Abstract

Abstract:

To investigate the effects of replacing chemical fertilizers with organic fertilizers on soil properties and production of Ipomoea batatas, organic fertilizers were applied using the method of equal nitrogen substitution, and indicators such as soil physical and chemical properties, yield and quality of Ipomoea batatas were tested and analyzed based on the nutrient requirements of Ipomoea batatas. The results showed that, compared with the control group that only applied chemical fertilizer, commercial organic fertilizer and bio-organic fertilizers with equal nitrogen substitution for chemical fertilizers, significantly (P<0.05) increased soil pH value. The content of soil available potassium increased by 62.4% in the treatment added with 15 kg bio-organic fertilizer. Meanwhile, different chemical fertilizer reduction treatments did not have significant effects on yield of Ipomoea batatas. However, the total potassium content in storage root was significantly increased (P<0.05). Especially in the treatment added with 15 kg bio-organic fertilizer, the total potassium content increased by 53.1%. The research promotes the application of chemical fertilizer reduction by organic fertilizer and provides an important theoretical basis for the green and sustainable industry development of Ipomoea batatas.

Key words: bio-organic fertilizer, chemical fertilizer reduction, Ipomoea batatas, yield and quality, soil improvement

CLC Number:

S531

YAN Jiaqi, HONG Leidong, FANG Yuxian, WANG Meiyun, HONG Chunlai, YAO Yanlai. Effects of replacing chemical fertilizers with organic fertilizers on soil properties, yield and quality of Ipomoea batatas[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(1): 57-61.

Figures/Tables 4

References 12

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处理	化肥用量	商品有机肥用量	生物有机肥用量	菜籽饼用量
T1	1.20	0	0	0
T2	1.08	15.0	0	1.1
T3	0.96	30.0	0	1.1
T4	0.96	0	7.5	1.1
T5	0.72	0	15.0	1.1

处理	化肥用量	商品有机肥用量	生物有机肥用量	菜籽饼用量
T1	1.20	0	0	0
T2	1.08	15.0	0	1.1
T3	0.96	30.0	0	1.1
T4	0.96	0	7.5	1.1
T5	0.72	0	15.0	1.1

处理	pH值	电导率/ (μS·cm^-1)	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	有效氮含量/ (mg·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (mg·kg^-1)
T1	4.74±0.23 a	395.31±68.70 b	27.19±1.98 a	1.78±0.13 a	217.24±44.10 a	144.88±60.08 a	104.74±32.21 a
T2	5.21±0.36 c	249.83±32.88 a	28.15±2.77 a	1.76±0.17 a	199.76±17.86 a	198.05±57.75 a	124.29±30.25 ab
T3	5.68±0.28 d	273.67±49.05 a	29.59±2.03 a	1.80±0.14 a	215.49±29.22 a	228.00±54.04 a	151.16±29.48 ab
T4	5.01±0.18 ab	313.25±31.69 ab	29.86±2.38 a	1.76±0.16 a	205.62±24.84 a	150.24±32.73 a	132.03±30.78 ab
T5	5.24±0.24 bc	280.23±62.00 a	30.05±2.07 a	1.76±0.11 a	205.79±29.30 a	185.37±58.31 a	170.12±51.90 b

处理	pH值	电导率/ (μS·cm^-1)	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	有效氮含量/ (mg·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (mg·kg^-1)
T1	4.74±0.23 a	395.31±68.70 b	27.19±1.98 a	1.78±0.13 a	217.24±44.10 a	144.88±60.08 a	104.74±32.21 a
T2	5.21±0.36 c	249.83±32.88 a	28.15±2.77 a	1.76±0.17 a	199.76±17.86 a	198.05±57.75 a	124.29±30.25 ab
T3	5.68±0.28 d	273.67±49.05 a	29.59±2.03 a	1.80±0.14 a	215.49±29.22 a	228.00±54.04 a	151.16±29.48 ab
T4	5.01±0.18 ab	313.25±31.69 ab	29.86±2.38 a	1.76±0.16 a	205.62±24.84 a	150.24±32.73 a	132.03±30.78 ab
T5	5.24±0.24 bc	280.23±62.00 a	30.05±2.07 a	1.76±0.11 a	205.79±29.30 a	185.37±58.31 a	170.12±51.90 b

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