Effects of biochar and organic fertilizer on soil properties and rice growth

doi:10.16178/j.issn.0528-9017.20231186

Abstract

Abstract:

In order to explore the effects of biochar and organic fertilizer on soil fertility and rice growth, Jia 67 was used as the test crop and five treatments were set up to study the changes of soil physical and chemical properties, rice yield and its constituent factors. The results showed that compared with the control, the soil bulk density decreased under the combined application of biochar and organic fertilizer. The content of soil organic matter increased by 13.26% under MC_0.5F₁ treatment. The soil pH value was the highest under SC_0.5F₁ treatment. The rice yield increased by 5.58%-7.48% compared with the control after the combined application of biochar and organic fertilizer. The correlation analysis showed that the combined application of biochar and organic fertilizer mainly increased the effective panicle number of rice by increasing soil pH value, organic matter, total nitrogen and total potassium content, thereby increasing rice yield. Therefore, the combined application of biochar and organic fertilizer can improve soil physical and chemical properties and increase rice yield.

Key words: biochar, organic fertilizer, soil fertility, rice yield

CLC Number:

S511

MA Liang, JIN Xinmei, ZHANG Weixing, FANG Yunfeng. Effects of biochar and organic fertilizer on soil properties and rice growth[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(3): 580-584.

Figures/Tables 4

References 24

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处理	有效穗数/ (万·hm^-2)	每穗粒数	结实率/ %	千粒重/ g
CK	297.95±13.23 b	128.60±6.76 b	88.07±0.20 a	21.50±0.10 b
MC_0.25F₁	340.95±6.45 a	116.00±4.72 c	90.62±0.14 a	22.50±0.26 a
MC_0.5F₁	330.80±14.41 a	142.80±7.11 a	91.22±0.36 a	22.30±0.30 a
SC_0.25F₁	320.25±17.21 a	122.00±3.61 b	90.84±0.11 a	22.70±0.20 a
SC_0.5F₁	340.20±13.84 a	136.50±5.18 a	91.48±0.07 a	22.80±0.35 a

处理	有效穗数/ (万·hm^-2)	每穗粒数	结实率/ %	千粒重/ g
CK	297.95±13.23 b	128.60±6.76 b	88.07±0.20 a	21.50±0.10 b
MC_0.25F₁	340.95±6.45 a	116.00±4.72 c	90.62±0.14 a	22.50±0.26 a
MC_0.5F₁	330.80±14.41 a	142.80±7.11 a	91.22±0.36 a	22.30±0.30 a
SC_0.25F₁	320.25±17.21 a	122.00±3.61 b	90.84±0.11 a	22.70±0.20 a
SC_0.5F₁	340.20±13.84 a	136.50±5.18 a	91.48±0.07 a	22.80±0.35 a

处理	土壤容重/ (g·cm^-3)	pH值	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	全钾含量/ (g·kg^-1)
CK	1.27±0.02 a	6.88±0.10 b	27.90±1.22 b	1.62±0.02 c	0.99±0.03 b	25.16±0.16 b
MC_0.25F₁	1.25±0.01 ab	7.16±0.06 a	30.80±1.20 a	1.68±0.05 b	1.02±0.03 b	25.62±0.18 b
MC_0.5F₁	1.22±0.02 b	7.20±0.07 a	31.60±1.40 a	1.73±0.04 a	0.98±0.02 b	26.15±0.20 a
SC_0.25F₁	1.23±0.03 b	7.14±0.09 a	28.70±1.65 b	1.66±0.04 b	1.05±0.05 b	26.28±0.29 a
SC_0.5F₁	1.22±0.03 b	7.22±0.09 a	30.20±1.60 a	1.71±0.05 a	1.10±0.04 a	26.64±0.21 a

处理	土壤容重/ (g·cm^-3)	pH值	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	全钾含量/ (g·kg^-1)
CK	1.27±0.02 a	6.88±0.10 b	27.90±1.22 b	1.62±0.02 c	0.99±0.03 b	25.16±0.16 b
MC_0.25F₁	1.25±0.01 ab	7.16±0.06 a	30.80±1.20 a	1.68±0.05 b	1.02±0.03 b	25.62±0.18 b
MC_0.5F₁	1.22±0.02 b	7.20±0.07 a	31.60±1.40 a	1.73±0.04 a	0.98±0.02 b	26.15±0.20 a
SC_0.25F₁	1.23±0.03 b	7.14±0.09 a	28.70±1.65 b	1.66±0.04 b	1.05±0.05 b	26.28±0.29 a
SC_0.5F₁	1.22±0.03 b	7.22±0.09 a	30.20±1.60 a	1.71±0.05 a	1.10±0.04 a	26.64±0.21 a

指标	产量	有效穗数	每穗粒数	结实率	千粒重
土壤容重	-0.662^**	-0.393	-0.416	-0.336	-0.446
pH值	0.859^**	0.790^**	0.161	0.781^**	0.509
有机质含量	0.552^**	0.713^**	0.356	0.062	0.446
全氮含量	0.592^*	0.686^**	0.506	0.218	0.462
全磷含量	0.394	0.383	-0.192	0.399	0.701^**
全钾含量	0.800^**	0.603^*	0.362	0.493	0.805^**