Nutrient Analysis and Fertilization Recommendation of Facility Soil in Western Liaoning

doi:10.11924/j.issn.1000-6850.casb2025-0881

Abstract

Abstract:

The purposes of the study are to find the primary causes of physiological diseases in facility vegetables, reduce the waste of chemical fertilizers and soil environmental pollution, and promote the sustainable development of the facility vegetable industry in western Liaoning. This study collected and analyzed 82 soil samples from 4 major production areas (Beipiao City, Heishan County, Yixian County, and Fuxin County) in western Liaoning. The results indicated that the soil pH in all 4 regions was neutral, with abundant total nitrogen, total phosphorus, and total potassium, and high levels of available nitrogen. However, available phosphorus levels were low in Beipiao City and Yixian County, while organic matter content was high in Heishan County and Fuxin County, and was moderate in Beipiao City and Yixian County. Calcium levels were generally low in all 4 regions, while magnesium levels were excessive, and the soils were all saline. It should appropriately increase the application of organic fertilizers such as farmyard manure, compost, and green manure to enhance soil organic matter content in Beipiao City and Yixian County. Meanwhile, it should reduce chemical fertilizer, increase microbial fertilizer application, and appropriately supplement trace elements, and reduce the concentration of salt ions in the soil in all 4 regions with measures such as crop rotation, stubble return, and other practices.

Key words: facilities, soil, nutrients, analysis, scientific fertilization

CLC Number:

S606.1.2

SUN Yongsheng. Nutrient Analysis and Fertilization Recommendation of Facility Soil in Western Liaoning[J]. Chinese Agricultural Science Bulletin, 2026, 42(5): 151-156.

Figures/Tables 9

References 11

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指标	极丰富	丰富	较丰富	适量	贫乏	极贫乏
全氮	>2	1.5~2	1~1.5	0.75~1	0.5~0.75	<0.5
全磷	>1	0.8~1	0.6~0.8	0.4~0.6	0.2~0.4	<0.2
全钾	>25	20~25	15~20	10~15	5~10	<5
交换性钙含量	>3.5	3.0~3.5	2.0~3.0	1.0~2.0	≤1.0
交换性镁含量	>0.15	0.1~0.15	0.05~0.1	0.025~0.05	≤0.025

指标	极丰富	丰富	较丰富	适量	贫乏	极贫乏
全氮	>2	1.5~2	1~1.5	0.75~1	0.5~0.75	<0.5
全磷	>1	0.8~1	0.6~0.8	0.4~0.6	0.2~0.4	<0.2
全钾	>25	20~25	15~20	10~15	5~10	<5
交换性钙含量	>3.5	3.0~3.5	2.0~3.0	1.0~2.0	≤1.0
交换性镁含量	>0.15	0.1~0.15	0.05~0.1	0.025~0.05	≤0.025

指标	临界值	极低	低	中	较高	高
有机质/(g/kg)	20	<10	10~20	20~30	30~40	≥40
碱解氮/(mg/kg)	50	<25	25~50	50-100	100~150	≥150
有效磷/(mg/kg)	50	<25	25~50	50~100	100-150	≥150
速效钾/(mg/kg)	150	<100	100~150	150~200	200-300	≥300

指标	临界值	极低	低	中	较高	高
有机质/(g/kg)	20	<10	10~20	20~30	30~40	≥40
碱解氮/(mg/kg)	50	<25	25~50	50-100	100~150	≥150
有效磷/(mg/kg)	50	<25	25~50	50~100	100-150	≥150
速效钾/(mg/kg)	150	<100	100~150	150~200	200-300	≥300

指标	pH	全氮/ (g/kg)	全磷/ (g/kg)	全钾/ (g/kg)	碱解氮/ (mg/kg)	有效磷/ (mg/kg)	速效钾/ (mg/kg)	有机质/ (g/kg)	交换性钙/ (g/kg)	交换性镁/ (g/kg)	全盐/ (g/kg)
平均	7.06	2.41	1.55	21.26	227.55	34.15	142.38	22.48	1.95	0.24	3.65
标准差	0.54	0.68	0.45	1.74	100.02	11.63	50.19	7.65	1.08	0.15	1.24
变异系数/%	8	28	29	8	44	34	35	34	55	63	34