Effect of seedling fertilizer application on agronomic traits and yield of direct seedling Brassica napus L. in paddy rice field

doi:10.16178/j.issn.0528-9017.20240101

Abstract

Abstract:

To study on the effects of seedling fertilizer application on the agronomic traits and yield of direct seedling Brassica napus L. in paddy rice field,this study used Zheyou 505 as test variety.The results showed that the growth period was delayed to varying degrees, the plant height and number of branches per plant increased accordingly with the increase of nitrogen fertilizer application during the seedling stage. The number of pods per plant showed a trend of first increasing and then decreasing with the increase of seedling fertilizer application, the difference in number of seeds per pod was not significant, and the weight of 1 000 grains increased with the increase of seedling fertilizer application. The yield performance showed a significant increase followed by a basic plateau and then a decrease. The oil content of rapeseed decreased with the increase of seedling fertilizer application. The application rate using about 204.75 kg·hm^-2 total nitrogen and 225 kg·hm^-2 urea (N 46%) provided the best yield and quality of Brassica napus L..

Key words: seedling fertilizer, direct seedling, Brassica napus L., traits, yield

CLC Number:

S636

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WU Meijuan, HUANG Hongming, WANG Nuan, SHAO Ting, JIANG Hongqi. Effect of seedling fertilizer application on agronomic traits and yield of direct seedling Brassica napus L. in paddy rice field[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(2): 318-320.

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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20240101

http://www.zjnykx.cn/EN/Y2025/V66/I2/318

Figures/Tables 3

Table 1 Fertilizer usage during each fertilization period in the experimental treatments 单位:kg·hm-2

处理	基肥	苗肥	薹肥	总纯氮
F1	450	75	225	135.75
F2	450	150	225	170.25
F3	450	225	225	204.75
F4	450	300	225	239.25
F5	450	375	225	273.75

Table 1 Fertilizer usage during each fertilization period in the experimental treatments 单位:kg·hm-2

处理	基肥	苗肥	薹肥	总纯氮
F1	450	75	225	135.75
F2	450	150	225	170.25
F3	450	225	225	204.75
F4	450	300	225	239.25
F5	450	375	225	273.75

Table 2 Effects of different treatments on the growth period of Brassica napus L.

处理	初花期(月-日)	终花期(月-日)	成熟期(月-日)
F1	03-06	04-01	05-12
F2	03-08	04-03	05-16
F3	03-09	04-04	05-18
F4	03-10	04-05	05-19
F5	03-10	04-05	05-19

Table 2 Effects of different treatments on the growth period of Brassica napus L.

处理	初花期(月-日)	终花期(月-日)	成熟期(月-日)
F1	03-06	04-01	05-12
F2	03-08	04-03	05-16
F3	03-09	04-04	05-18
F4	03-10	04-05	05-19
F5	03-10	04-05	05-19

Table 3 Effects of different treatments on agronomic traits, yield, and oil content of Brassica napus L.

处理	株高/ cm	一次分枝数/ 个	单株角果数/ 个	每角粒数	千粒重/ g	产量/ (kg·hm^-2)	含油量/ %
F1	120.75	1.25	59.38	20.02	4.97	3 268.35	51.73
F2	134.01	2.60	102.88	20.20	6.16	4 041.90	49.05
F3	135.75	3.20	115.20	21.02	6.60	4 236.30	48.58
F4	138.26	3.27	120.80	21.20	6.60	4 234.35	48.11
F5	138.67	3.33	119.78	21.13	6.63	3 891.30	47.22

Table 3 Effects of different treatments on agronomic traits, yield, and oil content of Brassica napus L.

处理	株高/ cm	一次分枝数/ 个	单株角果数/ 个	每角粒数	千粒重/ g	产量/ (kg·hm^-2)	含油量/ %
F1	120.75	1.25	59.38	20.02	4.97	3 268.35	51.73
F2	134.01	2.60	102.88	20.20	6.16	4 041.90	49.05
F3	135.75	3.20	115.20	21.02	6.60	4 236.30	48.58
F4	138.26	3.27	120.80	21.20	6.60	4 234.35	48.11
F5	138.67	3.33	119.78	21.13	6.63	3 891.30	47.22

References 3

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