Characteristics of Accumulation and Distribution of Phosphorus in Soil Profile after Long-term Application of Different Organic Fertilizers

doi:10.7668/hbnxb.20196001

Abstract

Abstract:

To explore the accumulation characteristics of soil phosphorus and its distribution pattern in the profile after long-term application of different organic fertilizers,a long-term field experiment was conducted to investigate the distribution and migration patterns of phosphorus in the soil profile under continuous application of different amounts of livestock and poultry manure organic fertilizers and sludge compost.The results showed that after 11 consecutive years of application of high amounts(60 t/ha per year)of pig manure,chicken manure and sludge,the phosphorus they brought in could obviously migrate to the 30—60 cm soil layer.The application of medium and high amounts(45,60 t/ha per year)of pig manure,chicken manure organic fertilizers and sludge compost could make the available phosphorus migrate to the 60—90 cm soil layer.After 11 years of application of different types of organic fertilizers,the phosphorus activation coefficient of the plough layer soil showed a significant upward trend,and the difference between high and low application rates reached a significant level.The order of soil phosphorus activation coefficient under different organic fertilizer treatments was:pig manure organic fertilizer treatment>chicken manure organic fertilizer treatment>sludge compost treatment.The content of available phosphorus in the plough layer soil after the application of chicken manure,pig manure organic fertilizer and sludge compost conformed to the linear plus plateau regression model with the phosphorus input.Under the condition of equal phosphorus input of organic fertilizer,the contribution of pig manure and chicken manure organic fertilizer to the available phosphorus in the plough layer soil was significantly higher than that of sludge compost.When the phosphorus input was greater than 7.14 t/ha,the contribution of pig manure organic fertilizer to the available phosphorus in the plough layer soil was significantly higher than that of chicken manure.The total phosphorus and available phosphorus contents in the soil profile were significantly positively correlated with the organic carbon content.In the 0—90 cm profile,soil organic carbon and phosphorus might co-migrate.

Key words: Organic fertilizer, Phosphorus, Soil profile, Accumulation, Distribution, Long-term application

CLC Number:

GAO Jing, WANG Xueqing, XIAO Guangmin, ZHAO Ouya, LIU Lei, WANG Ce, WANG Ling, SUN Shiyou, HOU Shenglin, RU Shuhua. Characteristics of Accumulation and Distribution of Phosphorus in Soil Profile after Long-term Application of Different Organic Fertilizers[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(2): 129-137. doi: 10.7668/hbnxb.20196001.

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References 40

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有机肥种类 Types of organic fertilizers	pH	有机碳/ (g/kg) Organic carbon	全氮/ (g/kg) Total-N	全磷/ (g/kg) Total-P	全钾/ (g/kg) Total-K	有效磷/ (g/kg) Available-P	速效钾/ (g/kg) Available-K
鸡粪Chicken manure	7.10	182	21.6	22.9	11.8	3.80	4.30
猪粪Pig manure	8.60	184	20.2	23.0	11.7	4.93	4.75
污泥Sludge	6.62	201	28.1	27.9	6.0	2.67	2.48

有机肥种类 Types of organic fertilizers	pH	有机碳/ (g/kg) Organic carbon	全氮/ (g/kg) Total-N	全磷/ (g/kg) Total-P	全钾/ (g/kg) Total-K	有效磷/ (g/kg) Available-P	速效钾/ (g/kg) Available-K
鸡粪Chicken manure	7.10	182	21.6	22.9	11.8	3.80	4.30
猪粪Pig manure	8.60	184	20.2	23.0	11.7	4.93	4.75
污泥Sludge	6.62	201	28.1	27.9	6.0	2.67	2.48

处理Treatment	0~15 cm	15~30 cm	30~60 cm	60~90 cm
CK	1.88±0.32c	1.37±0.42d	1.80±0.15c	0.84±0.42c
J1	9.32±0.32b	3.67±0.51c	4.23±0.38b	2.32±0.67b
J2	11.50±0.32a	5.72±0.35b	4.06±0.24b	2.82±0.31b
J3	12.20±0.38a	7.85±0.51a	5.89±0.17a	4.39±0.40a
J4	12.10±0.51a	8.39±0.23a	5.51±0.34a	3.02±0.38b
CK	1.88±0.32c	1.37±0.42d	1.80±0.15d	0.84±0.42c
Z1	11.10±1.35b	4.27±0.48c	3.56±0.80c	2.40±1.06b
Z2	11.40±1.19b	6.89±0.45b	5.02±0.45b	2.33±0.42b
Z3	14.20±0.27a	9.45±0.25a	5.84±0.33a	4.43±0.28a
Z4	14.20±0.57a	9.63±0.79a	6.43±0.61a	4.77±0.27a
CK	1.88±0.32d	1.37±0.42c	1.80±0.15c	0.84±0.42d
W1	8.20±0.81a	5.37±0.36b	4.19±0.36b	3.01±0.18c
W2	7.42±0.25ab	5.63±0.62ab	4.10±0.47b	3.25±0.21bc
W3	6.52±0.22c	5.31±0.63b	5.95±0.52a	3.85±0.33ab
W4	7.17±0.67b	6.47±0.30a	6.26±0.56a	4.47±0.50a

处理Treatment	0~15 cm	15~30 cm	30~60 cm	60~90 cm
CK	1.88±0.32c	1.37±0.42d	1.80±0.15c	0.84±0.42c
J1	9.32±0.32b	3.67±0.51c	4.23±0.38b	2.32±0.67b
J2	11.50±0.32a	5.72±0.35b	4.06±0.24b	2.82±0.31b
J3	12.20±0.38a	7.85±0.51a	5.89±0.17a	4.39±0.40a
J4	12.10±0.51a	8.39±0.23a	5.51±0.34a	3.02±0.38b
CK	1.88±0.32c	1.37±0.42d	1.80±0.15d	0.84±0.42c
Z1	11.10±1.35b	4.27±0.48c	3.56±0.80c	2.40±1.06b
Z2	11.40±1.19b	6.89±0.45b	5.02±0.45b	2.33±0.42b
Z3	14.20±0.27a	9.45±0.25a	5.84±0.33a	4.43±0.28a
Z4	14.20±0.57a	9.63±0.79a	6.43±0.61a	4.77±0.27a
CK	1.88±0.32d	1.37±0.42c	1.80±0.15c	0.84±0.42d
W1	8.20±0.81a	5.37±0.36b	4.19±0.36b	3.01±0.18c
W2	7.42±0.25ab	5.63±0.62ab	4.10±0.47b	3.25±0.21bc
W3	6.52±0.22c	5.31±0.63b	5.95±0.52a	3.85±0.33ab
W4	7.17±0.67b	6.47±0.30a	6.26±0.56a	4.47±0.50a

有机肥种类 Types of organic fertilizers	项目 Item		回归方程 Equation of regression	Pearson相关性 Pearson correlation
鸡粪	有机碳	全磷	y=10.505 0x-0.048 0	0.983^**
Chicken manure		有效磷	y=0.072 3x+5.172 2	0.953^**
猪粪	有机碳	全磷	y=11.216 0x-0.834 3	0.969^**
Pig manure		有效磷	y= 0.066 8x+4.889 5	0.942^**
污泥	有机碳	全磷	y=7.818 8x+1.490 8	0.984^**
Sludge		有效磷	y=0.100 2x+4.172 0	0.950^**

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