Effect of Different Types of High-quality Japonica Rice on Nitrogen Fertilizer Application

doi:10.11924/j.issn.1000-6850.casb2023-0891

Abstract

Abstract:

The aims are to explore the suitable nitrogen application amount for different types of high-quality rice varieties, effectively solve the problems of low nitrogen fertilizer utilization efficiency and environmental pollution caused by one-sided pursuit of yield and excessive application of nitrogen fertilizer. In this study, we selected three types of rice varieties of medium ripe medium japonica ‘Nanjing 5718’, late ripe medium japonica ‘Nanjing 9108’, and early ripe late japonica ‘Ningxiangjing 9’ as experimental subjects. The effects of different nitrogen application rates on the growth, yield and quality of rice were studied. The results showed that in terms of growth stage and growth process, ‘Nanjing 5718’ had no response to nitrogen application, while ‘Ningxiangjing 9’ was more sensitive to nitrogen application. In a certain range, rice yield increased with the increase of N application, and ‘Nanjing 9108’ and ‘Nanjing 5718’ had the highest yield when N application was 315 kg/hm²; and ‘Ningxiangjing 9’ had the highest yield when nitrogen application was 270 kg/hm². In addition, the processing quality and appearance quality of ‘Nanjing 9108’ and ‘Nanjing 5718’ were significantly affected by increased application of nitrogen fertilizer, but those of ‘Ningxiangjing 9’ were almost not affected. At the same time, the increase of nitrogen application significantly increased the protein content, decreased the amylose content and gum consistency, and decreased the cooking and eating quality of rice.

Key words: japonica rice with good quality, nitrogen fertilizer response, yield, rice quality

CHEN Jing, WEN Kai, WANG Jun, QIU Jingtao, TANG Jianpeng. Effect of Different Types of High-quality Japonica Rice on Nitrogen Fertilizer Application[J]. Chinese Agricultural Science Bulletin, 2024, 40(24): 1-8.

Figures/Tables 7

References 22

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日期	氮素处理水平/(kg/hm²)		N1	N2	N3	N4
6月14日	基肥	(15-10-15)复合肥	600.0
6月25日	分蘖肥	尿素	150.0	214.5	283.5	352.5
8月11日	穗肥	(15-10-15)复合肥	225.0
8月11日	穗肥	尿素	75.0	102.0	132.0	162.0

日期	氮素处理水平/(kg/hm²)		N1	N2	N3	N4
6月14日	基肥	(15-10-15)复合肥	600.0
6月25日	分蘖肥	尿素	150.0	214.5	283.5	352.5
8月11日	穗肥	(15-10-15)复合肥	225.0
8月11日	穗肥	尿素	75.0	102.0	132.0	162.0

品种	处理	播种 (月-日)	插秧 (月-日)	破口期 (月-日)	始穗(10%) (月-日)	抽穗(50%) (月-日)	齐穗(80%) (月-日)	成熟期 (月-日)	齐穗—成熟/ d	全生育期/ d
NJ9108	CK	05-25	06-18	08-27	08-29	09-01	09-04	10-25	51	153
	N1	05-25	06-18	08-29	08-31	09-03	09-06	10-27	51	155
	N2	05-25	06-18	08-29	08-31	09-03	09-06	10-27	51	155
	N3	05-25	06-18	08-29	09-01	09-03	09-05	10-26	51	154
	N4	05-25	06-18	08-31	09-02	09-04	09-06	10-27	51	155
NJ5718	CK	05-25	06-18	08-25	08-27	08-29	09-01	10-23	52	151
	N1	05-25	06-18	08-26	08-28	08-30	09-02	10-23	51	151
	N2	05-25	06-18	08-26	08-28	08-31	09-03	10-23	50	151
	N3	05-25	06-18	08-29	08-31	09-03	09-05	10-24	49	152
	N4	05-25	06-18	08-25	08-28	09-02	09-04	10-23	49	151
宁香粳9号	CK	05-25	06-18	09-02	09-04	09-06	09-08	10-28	50	155
	N1	05-25	06-18	09-04	09-06	09-08	09-10	10-31	51	158
	N2	05-25	06-18	09-05	09-07	09-08	09-10	10-31	51	158
	N3	05-25	06-18	09-03	09-05	09-08	09-10	10-31	51	158
	N4	05-25	06-18	09-03	09-05	09-09	09-11	11-01	51	159

品种	处理	播种 (月-日)	插秧 (月-日)	破口期 (月-日)	始穗(10%) (月-日)	抽穗(50%) (月-日)	齐穗(80%) (月-日)	成熟期 (月-日)	齐穗—成熟/ d	全生育期/ d
NJ9108	CK	05-25	06-18	08-27	08-29	09-01	09-04	10-25	51	153
	N1	05-25	06-18	08-29	08-31	09-03	09-06	10-27	51	155
	N2	05-25	06-18	08-29	08-31	09-03	09-06	10-27	51	155
	N3	05-25	06-18	08-29	09-01	09-03	09-05	10-26	51	154
	N4	05-25	06-18	08-31	09-02	09-04	09-06	10-27	51	155
NJ5718	CK	05-25	06-18	08-25	08-27	08-29	09-01	10-23	52	151
	N1	05-25	06-18	08-26	08-28	08-30	09-02	10-23	51	151
	N2	05-25	06-18	08-26	08-28	08-31	09-03	10-23	50	151
	N3	05-25	06-18	08-29	08-31	09-03	09-05	10-24	49	152
	N4	05-25	06-18	08-25	08-28	09-02	09-04	10-23	49	151
宁香粳9号	CK	05-25	06-18	09-02	09-04	09-06	09-08	10-28	50	155
	N1	05-25	06-18	09-04	09-06	09-08	09-10	10-31	51	158
	N2	05-25	06-18	09-05	09-07	09-08	09-10	10-31	51	158
	N3	05-25	06-18	09-03	09-05	09-08	09-10	10-31	51	158
	N4	05-25	06-18	09-03	09-05	09-09	09-11	11-01	51	159

品种	处理	基部节间长/cm			基部节间之和/cm	基部节间占株高比重/%	穗下节间/ cm		穗长/ cm	株高/ cm
品种	处理	基部第一节间	基部第二节间	基部第三节间	基部节间之和/cm	基部节间占株高比重/%	穗下节间/ cm		穗长/ cm	株高/ cm
NJ9108	CK	3.24 b	4.39 f	5.63 g	13.25 i	14.57 k	21.80 e		12.50 fg	91.0 f
	N1	3.19 b	4.30 f	5.91 g	13.40 hi	14.61 k	22.70 e		13.71 efg	91.7 f
	N2	2.87 b	5.50 cdef	11.90 cd	20.27 def	21.39 g	23.63 de		14.12 defg	94.8 e
	N3	3.03 b	6.36 cde	10.85 de	20.25 def	22.08 f	25.70cd		14.57 cde	91.7 f
	N4	2.98 b	7.21 c	13.79 bc	23.98 cd	27.21 cd	22.07 e		12.47 g	88.1 g
NJ5718	CK	2.89 b	5.17 def	7.93 f	15.99 ghi	16.20 j	23.43 de		13.81 efg	98.7 cd
	N1	3.27 b	5.48 cdef	10.17 de	18.91 efg	18.87 h	30.98 a		17.00 ab	100.2 abc
	N2	2.98 b	4.92 ef	9.22 ef	17.12 fgh	16.84 i		29.04 ab	17.69 a	101.7 ab
	N3	2.89 b	5.30 def	10.36 de	18.55 efg	18.66 h		26.66 bc	16.01 abc	99.4 bcd
	N4	3.78 ab	6.81 cd	11.07 d	21.66 de	21.55 fg	23.53 de		14.43 cdef	100.5 abc
宁香粳9号	CK	3.05 b	7.27 c	13.75 bc	24.08 cd	23.70 e		28.76 ab	14.45 cde	101.6 ab
	N1	3.82 ab	9.28 b	14.78 ab	27.89 bc	27.53 c		29.86 a	15.20 bcde	101.3 ab
	N2	3.99 ab	9.18 b	13.81 b	26.98 bc	26.72 d		29.91 a	15.80 bcd	101.0 abc
	N3	4.06 ab	10.23 ab	14.88 ab	29.16 ab	28.52 b		29.27 ab	15.38 bcde	102.2 a
	N4	4.63 a	11.08 a	16.59 a	32.30 a	33.16 a		28.95 ab	14.69 cde	97.4 d