Absorption characteristics of N,P, K, Mn, Fe and Cu in Brassica oleracea var.capitata L. cv. Dongyang 206

doi:10.16178/j.issn.0528-9017.20230842

Abstract

Abstract:

The aim of this experiment is to further optimize the fertilization plan for Brassica oleracea var.capitata L. cv. Dongyang 206. By analyzing the accumulation of six nutrients, including N, P, K, Mn, Fe and Cu, as well as the accumulation of trace elements in Brassica oleracea var.capitata L., a reasonable fertilizer application amount and ratio relationship were determined. The average content of N, P, and K in the dry matter of Dongyang 206 was found to be 0.305, 0.033 4 and 0.305 g·kg^-1, respectively. The application amount of N, P₂O₅, and K₂O reached 273.99, 68.27 and 304.16 kg·hm^-2, and the application amount of Mn, Fe, and Cu reached 161.34, 697.63, and 22.09 g·hm^-2, respectively, could basically meet the nutrient balance when the target yield was 117 201 kg·hm^-2. The average absorption amounts of N, P₂O₅ and K₂O in Brassica oleracea var.capitata L. were 215.04, 54.07 and 258.09 kg·hm^-2, and the proportion relationship between the average absorption amount of N, P₂O₅, and K₂O was 20.16∶5.00∶24.30. The average absorption amounts of Mn, Fe and Cu in Brassica oleracea var.capitata L. were 134.42, 426.31 and 16.05 g·hm^-2, respectively. The agronomic efficiency of NPK fertilizer was 101.36, 97.86 and 16.03 kg·kg^-1, respectively. The NPK fertilizer utilization rates were 43.80%, 15.85% and 36.25%, respectively.

Key words: Brassica oleracea var.capitata L., N, P and K, Mn, Fe and Cu, nutrient

CLC Number:

S635.1

WANG Dongqun, CHENG Meiling, FANG Xufeng. Absorption characteristics of N,P, K, Mn, Fe and Cu in Brassica oleracea var.capitata L. cv. Dongyang 206[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(11): 2586-2590.

Figures/Tables 6

References 8

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肥料种类	N₀PK	NPK₀	NP₀K	NPK	N₁P₁K₁	N₂P₂K₂	N₃P₃K₃	N₄P₄K₄
P₂O₅	138	138	0	138	90	135	180	225
N	0	192	192	192	90	135	180	225
K₂O	150	0	150	150	90	135	180	225

肥料种类	N₀PK	NPK₀	NP₀K	NPK	N₁P₁K₁	N₂P₂K₂	N₃P₃K₃	N₄P₄K₄
P₂O₅	138	138	0	138	90	135	180	225
N	0	192	192	192	90	135	180	225
K₂O	150	0	150	150	90	135	180	225

处理	400 g植株烘干重/g	变异系数/ %	全氮含量/ (g·kg^-1)	变异系数/ %	全磷含量/ (g·kg^-1)	变异系数/ %	全钾含量/ (g·kg^-1)	变异系数/ %
N₀PK	23.33	8.92	0.268	21.67	0.030 9	19.03	0.298	10.27
NPK₀	22.87	11.11	0.280	3.05	0.031 4	9.16	0.268	19.58
NP₀K	24.07	14.97	0.292	17.22	0.027 1	15.93	0.304	14.43
NPK	20.47	8.14	0.345	5.87	0.037 2	1.89	0.318	7.15
N₀P₀K₀	21.87	21.10	0.303	10.90	0.029 1	17.55	0.316	18.52
N₁P₁K₁	20.87	6.16	0.317	3.76	0.032 3	25.85	0.294	11.79
N₂P₂K₂	24.67	11.36	0.305	9.94	0.035 5	27.24	0.296	19.34
N₃P₃K₃	22.13	12.33	0.304	12.45	0.037 4	9.17	0.304	13.38
N₄P₄K₄	20.33	21.65	0.328	10.60	0.039 4	17.09	0.349	14.42
平均值	22.29	7.03	0.305	7.73	0.033 4	12.56	0.305	7.19

处理	400 g植株烘干重/g	变异系数/ %	全氮含量/ (g·kg^-1)	变异系数/ %	全磷含量/ (g·kg^-1)	变异系数/ %	全钾含量/ (g·kg^-1)	变异系数/ %
N₀PK	23.33	8.92	0.268	21.67	0.030 9	19.03	0.298	10.27
NPK₀	22.87	11.11	0.280	3.05	0.031 4	9.16	0.268	19.58
NP₀K	24.07	14.97	0.292	17.22	0.027 1	15.93	0.304	14.43
NPK	20.47	8.14	0.345	5.87	0.037 2	1.89	0.318	7.15
N₀P₀K₀	21.87	21.10	0.303	10.90	0.029 1	17.55	0.316	18.52
N₁P₁K₁	20.87	6.16	0.317	3.76	0.032 3	25.85	0.294	11.79
N₂P₂K₂	24.67	11.36	0.305	9.94	0.035 5	27.24	0.296	19.34
N₃P₃K₃	22.13	12.33	0.304	12.45	0.037 4	9.17	0.304	13.38
N₄P₄K₄	20.33	21.65	0.328	10.60	0.039 4	17.09	0.349	14.42
平均值	22.29	7.03	0.305	7.73	0.033 4	12.56	0.305	7.19

变量	N₀PK	NPK₀	NP₀K	NPK	N₀P₀K₀	N₁P₁K₁	N₂P₂K₂	N₃P₃K₃	N₄P₄K₄
叶球产量/(kg·hm^-2)	97 740	114 796	103 696	117 201	79 587	93 940	94 072	115 229	116 329
叶球产量变异系数/%	15.99	11.18	6.74	4.10	10.48	8.37	7.33	4.93	14.26
外叶产量(kg·hm^-2)	24 813	27 087	22 856	38 475	21 612	22 232	24 193	24 658	19 708
外叶产量变异系数/%	31.61	7.65	18.18	34.95	17.97	11.60	20.07	13.04	20.76
净菜率/%	79.76	80.92	81.95	75.31	78.63	80.88	79.55	82.36	85.51
增产率/%	22.81	44.24	30.29	47.26	—	18.03	18.20	44.78	46.17
产量百分比/%	83.40	97.95	88.48	—	67.91	80.15	80.27	98.32	99.26