Effects of increasing organic fertilizer application on maize yield and soil fertility in Dongyang City

doi:10.16178/j.issn.0528-9017.20250119

Abstract

Abstract:

Based on the monitoring data of provincial-level farmland quality monitoring points in Dongyang City from 2014 to 2022，this study analyzed the changing trends of maize yield and soil fertility under the background of organic fertilizer replacing chemical fertilizer，and clarified the effect of organic fertilizer application on maize yield and soil fertility. The monitoring results over 10 consecutive years showed that by optimizing fertilization，with an additional application of 260 kg of commercial organic fertilizer per 667 m²，the application amounts of chemical nitrogen，phosphorus and potassium fertilizers were reduced by 19.1%，14.3% and 27.3% respectively；and the maize yield increased，with an average annual increase of 74.9 kg per 667 m²，and an increase rate of 11.0%. At the same time，the application of organic fertilizer can，to a certain extent，inhibit soil acidification，increase soil organic matter，total nitrogen，available phosphorus and available potassium contents，improve crop nutrient absorption and fertilizer utilization efficiency，and thus achieve the goal of reducing chemical fertilizer application while increasing efficiency. The results of this study provided a theoretical basis for the substitution of organic fertilizer for chemical fertilizer in maize production in this region，which was conducive to promoting the sustainable production of maize.

Key words: Dongyang City, long-term monitoring, maize yield, soil fertility

CLC Number:

S513

WANG Yun, FANG Xiaowen, SHEN Hong, CAO Mina. Effects of increasing organic fertilizer application on maize yield and soil fertility in Dongyang City[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(2): 310-313.

Figures/Tables 5

References 10

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层次	采样深度/cm	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）	土壤阳离子交换量/（cmol·kg^-1）
旱耕层	0～20	5.06	22.50	1.220	1.31	15.8	6.44
亚耕层	21～30	5.40	9.63	0.586	0.55	15.5	7.08
心土层	31～50	5.57	5.32	0.180	0.40	16.3	4.83
底土层	>50	6.07	2.43	0.180	0.31	17.5	17.80

层次	采样深度/cm	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）	土壤阳离子交换量/（cmol·kg^-1）
旱耕层	0～20	5.06	22.50	1.220	1.31	15.8	6.44
亚耕层	21～30	5.40	9.63	0.586	0.55	15.5	7.08
心土层	31～50	5.57	5.32	0.180	0.40	16.3	4.83
底土层	>50	6.07	2.43	0.180	0.31	17.5	17.80

处理	养分指数	667 m²肥料投入量/kg	667 m²作物带走量/kg	667 m²养分盈亏量/kg
N1P1K1	N	19.90	8.02	11.88
	P₂O₅	5.25	4.11	1.14
	K₂O	16.50	10.37	6.13
N2P2K2+M	N	16.10	11.03	5.07
	P₂O₅	4.50	4.65	-0.15
	K₂O	12.00	12.21	-0.21

处理	养分指数	667 m²肥料投入量/kg	667 m²作物带走量/kg	667 m²养分盈亏量/kg
N1P1K1	N	19.90	8.02	11.88
	P₂O₅	5.25	4.11	1.14
	K₂O	16.50	10.37	6.13
N2P2K2+M	N	16.10	11.03	5.07
	P₂O₅	4.50	4.65	-0.15
	K₂O	12.00	12.21	-0.21

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