Effects of different fertilization dose before and after topping on yield and quality of rapeseed

doi:10.16178/j.issn.0528-9017.20240772

Abstract

Abstract:

To study the effects of different fertilization dose before and after topping on the yield and quality of rapeseed, a related experiment was conducted in Lanxi City from 2023 to 2024. The rapeseed shoots were processed into dried pickled vegetable, and their nutritional components were analyzed. The results showed that topping delayed the growth period of rapeseed, reduced plant height, and increased the protein content of rapeseed. As the fertilization dose increased before and after topping, the growth period was correspondingly delayed, the number of primary branches slightly increased, the number of pods per plant showed no clear trend, and the overall rapeseed yield tended to increase. In summary, when urea application was ≥7.5 kg per 667 m² either on 5 days before topping or on the day of topping, the rapeseed yield was higher, and the comprehensive benefits of the rapeseed field were improved. The dried pickled vegetable made from rapeseed shoots have high nutritional value and are worth further promotion.

Key words: topping, fertilization dose, rapeseed, yield, quality, dried pickled vegetable

CLC Number:

S565.4

WANG Nuan, SHAO Ting, WU Meijuan, HUANG Hongming, ZHANG Yanan. Effects of different fertilization dose before and after topping on yield and quality of rapeseed[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(6): 1333-1337.

Figures/Tables 5

References 15

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年份	处理	播种期 (月-日)	初花期 (月-日)	终花期 (月-日)	成熟期 (月-日)
2023	A1	10-23	03-20	04-10	05-23
	A2	10-23	03-19	04-09	05-22
	A3	10-23	03-20	04-10	05-23
	A4	10-23	03-21	04-11	05-24
	A5	10-23	03-22	04-12	05-26
	CK1	10-23	03-09	04-04	05-21
2024	B1	10-22	03-21	04-12	05-23
	B2	10-22	03-22	04-13	05-24
	B3	10-22	03-22	04-14	05-25
	B4	10-22	03-23	04-15	05-27
	CK2	10-22	03-10	04-02	05-20

年份	处理	播种期 (月-日)	初花期 (月-日)	终花期 (月-日)	成熟期 (月-日)
2023	A1	10-23	03-20	04-10	05-23
	A2	10-23	03-19	04-09	05-22
	A3	10-23	03-20	04-10	05-23
	A4	10-23	03-21	04-11	05-24
	A5	10-23	03-22	04-12	05-26
	CK1	10-23	03-09	04-04	05-21
2024	B1	10-22	03-21	04-12	05-23
	B2	10-22	03-22	04-13	05-24
	B3	10-22	03-22	04-14	05-25
	B4	10-22	03-23	04-15	05-27
	CK2	10-22	03-10	04-02	05-20

年份	处理	株高/ cm	一次分枝数	单株角果数	每角粒数	千粒重/ g
2023	A1	130.50	2.30	91.11	20.32	5.41
	A2	128.75	1.75	44.38	21.07	5.07
	A3	126.50	1.80	64.00	20.80	6.10
	A4	125.00	1.90	57.40	20.65	5.25
	A5	129.50	1.90	88.67	21.97	5.27
	CK1	140.00	0.89	56.44	14.79	6.31
2024	B1	104.50	1.80	55.60	14.95	5.72 ab
	B2	112.50	1.80	60.00	15.76	5.44 b
	B3	111.00	1.90	76.50	13.77	5.52 b
	B4	111.00	2.10	63.70	13.59	5.98 a
	CK2	125.70	1.20	97.30	12.12	5.70 ab

年份	处理	株高/ cm	一次分枝数	单株角果数	每角粒数	千粒重/ g
2023	A1	130.50	2.30	91.11	20.32	5.41
	A2	128.75	1.75	44.38	21.07	5.07
	A3	126.50	1.80	64.00	20.80	6.10
	A4	125.00	1.90	57.40	20.65	5.25
	A5	129.50	1.90	88.67	21.97	5.27
	CK1	140.00	0.89	56.44	14.79	6.31
2024	B1	104.50	1.80	55.60	14.95	5.72 ab
	B2	112.50	1.80	60.00	15.76	5.44 b
	B3	111.00	1.90	76.50	13.77	5.52 b
	B4	111.00	2.10	63.70	13.59	5.98 a
	CK2	125.70	1.20	97.30	12.12	5.70 ab

年份	处理	667 m²菜薹产量/kg	667 m²菜籽产量/kg	667 m²油菜田产值/元	667 m²增加人工成本/元	667 m²增加肥料成本/元	667 m²油菜田效益/元
2023	A1	243.15	175.04	2 092.86	480	22.5	890.36
	A2	212.54	124.74	1 648.50	480	0	468.50
	A3	214.98	130.93	1 697.87	480	15.0	502.87
	A4	219.22	162.75	1 918.48	480	22.5	715.98
	A5	212.24	162.62	1 889.73	480	30.0	679.73
	CK1	0	140.14	896.90	0	0	196.90
2024	B1	143.28	120.60 c	1 344.96	480	0	164.96
	B2	166.69	133.30 bc	1 519.88	480	15.0	324.88
	B3	167.06	165.04 a	1 724.50	480	22.5	522.00
	B4	182.97	163.48 ab	1 778.15	480	30.0	568.15
	CK2	0	151.55 abc	969.92	0	0	269.92