Effects of Different Slow-release Fertilizer Groups on Growth and Yield of Regenerative Rice in Southern Henan

doi:10.11924/j.issn.1000-6850.casb2023-0024

Abstract

Abstract:

The feasibility of light and simplified cultivation technology of ratooning rice in southern Henan and the reasons for yield formation were discussed by applying different combinations of slow and controlled release fertilizers. The results showed that under different treatments, the main factor for the yield increase of the first season rice was to increase the total spikelet amount by panicle grain fertilizer; The main factor of increasing yield in the regeneration season was to improve the regeneration rate by improving the leaf area index and dry matter quality in the regeneration season through bud promoting fertilizer. Under the condition of precise and quantitative fertilization, due to the timely and reasonable application of fertilizer, the total yield and nitrogen contribution rate of the two seasons were the highest. The new special fertilizer for ratooning rice was applied twice in the first season of rice growth, and applied as basal tiller fertilizer and ear bud fertilizer respectively. The total yield of the two seasons was 13.9 t/hm², which was 1055 kg/hm² lower than that of precise quantitative fertilization. The cost of labor and fertilizer was 990 yuan/hm² lower than that of precise quantitative fertilization. The net income was 1478 yuan/hm² lower than that of precise quantitative fertilization, which was only 3.5% lower than that of precise quantitative fertilization. According to the local employment situation, the new type of ratooning rice set fertilizer could be used to achieve the goal of stabilizing production and increasing income.

Key words: ratooning rice, slow and controlled release fertilizer, light simplification, rice yield

YU Guilong, LIU Xiangchen, ZHANG Qiang, FENG Daqing, ZHAO Haiying, GU Mengxuan, SUN Quandong, WANG Bin, XIONG Qu. Effects of Different Slow-release Fertilizer Groups on Growth and Yield of Regenerative Rice in Southern Henan[J]. Chinese Agricultural Science Bulletin, 2023, 39(36): 22-27.

Figures/Tables 6

References 14

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处理	头季稻			再生季		施肥量/(kg/hm²)
处理	基肥	分蘖肥	穗粒肥	促芽肥	提苗肥	施肥量/(kg/hm²)
CK	—	—	—	—	—	N=0；P₂O₅=0； K₂O=0
TCK	45%复合肥(15-15-15) 750 kg/hm²、过磷酸钙193 kg/hm²	尿素 129 kg/hm²	尿素248 kg/hm²、氯化钾239 kg/hm²	尿素150 kg/hm²、氯化钾150 kg/hm²	尿素150 kg/hm²	N=426；P₂O₅=143； K₂O=346
A	再生稻专用缓控释肥(26-10-16) 554 kg/hm²、过磷酸钙285 kg/hm²、氯化钾249 kg/hm²	—	再生稻专用缓控释肥(26-7-18) 600 kg/hm²		尿素272 kg/hm²	N=426；P₂O₅=143； K₂O=346
B	水稻专用缓控释肥(26-9-13) 750 kg/hm²、过磷酸钙209 kg/hm²、氯化钾234 kg/hm²	—	再生稻专用缓控释肥(26-7-18) 600 kg/hm²		尿素162 kg/hm²	N=426；P₂O₅=143； K₂O=346
C	水稻专用缓控释肥(26-9-13) 1200 kg/hm²、过磷酸钙219 kg/hm²、氯化钾317 kg/hm²	—	—		尿素246 kg/hm²	N=426；P₂O₅=143； K₂O=346
D	水稻专用缓控释肥(26-9-13) 750 kg/hm²、氯化钾222 kg/hm²	—	普通复合肥(15-15-15) 770 kg/hm²		尿素249 kg/hm²	N=426；P₂O₅=143； K₂O=346

处理	头季稻			再生季		施肥量/(kg/hm²)
处理	基肥	分蘖肥	穗粒肥	促芽肥	提苗肥	施肥量/(kg/hm²)
CK	—	—	—	—	—	N=0；P₂O₅=0； K₂O=0
TCK	45%复合肥(15-15-15) 750 kg/hm²、过磷酸钙193 kg/hm²	尿素 129 kg/hm²	尿素248 kg/hm²、氯化钾239 kg/hm²	尿素150 kg/hm²、氯化钾150 kg/hm²	尿素150 kg/hm²	N=426；P₂O₅=143； K₂O=346
A	再生稻专用缓控释肥(26-10-16) 554 kg/hm²、过磷酸钙285 kg/hm²、氯化钾249 kg/hm²	—	再生稻专用缓控释肥(26-7-18) 600 kg/hm²		尿素272 kg/hm²	N=426；P₂O₅=143； K₂O=346
B	水稻专用缓控释肥(26-9-13) 750 kg/hm²、过磷酸钙209 kg/hm²、氯化钾234 kg/hm²	—	再生稻专用缓控释肥(26-7-18) 600 kg/hm²		尿素162 kg/hm²	N=426；P₂O₅=143； K₂O=346
C	水稻专用缓控释肥(26-9-13) 1200 kg/hm²、过磷酸钙219 kg/hm²、氯化钾317 kg/hm²	—	—		尿素246 kg/hm²	N=426；P₂O₅=143； K₂O=346
D	水稻专用缓控释肥(26-9-13) 750 kg/hm²、氯化钾222 kg/hm²	—	普通复合肥(15-15-15) 770 kg/hm²		尿素249 kg/hm²	N=426；P₂O₅=143； K₂O=346

处理	播种日期 (月-日)	移栽日期 (月-日)	头季稻			再生季		全生育期/d
处理	播种日期 (月-日)	移栽日期 (月-日)	齐穗期(月-日)	成熟期(月-日)	生育期/d	成熟期(月-日)	生育期/d	全生育期/d
CK	3-05	4-15	7-1	8-2	150b	10-16	75b	226b
TCK			7-4	8-7	155a	10-26	80a	235a
A			7-4	8-6	154a	10-24	79a	233a
B			7-4	8-6	154a	10-23	78a	232a
C			7-3	8-4	152a	10-20	77a	229ab
D			7-4	8-5	153a	10-22	78a	231a

处理	播种日期 (月-日)	移栽日期 (月-日)	头季稻			再生季		全生育期/d
处理	播种日期 (月-日)	移栽日期 (月-日)	齐穗期(月-日)	成熟期(月-日)	生育期/d	成熟期(月-日)	生育期/d	全生育期/d
CK	3-05	4-15	7-1	8-2	150b	10-16	75b	226b
TCK			7-4	8-7	155a	10-26	80a	235a
A			7-4	8-6	154a	10-24	79a	233a
B			7-4	8-6	154a	10-23	78a	232a
C			7-3	8-4	152a	10-20	77a	229ab
D			7-4	8-5	153a	10-22	78a	231a

处理	叶面积指数LAI		干物质积累量/(t/hm²)
处理	齐穗期	成熟期	齐穗期	成熟期	齐穗期-成熟期
CK	1.8f	0.4e	3.9e	5.9f	2.0f
TCK	4.5a	1.4a	7.8a	13.0a	5.2a
A	4.1b	1.2b	7.2b	11.9b	4.7b
B	3.6c	0.9c	6.0c	9.9c	3.9c
C	2.8e	0.7d	5.6d	8.6e	3.0e
D	3.0d	0.8cd	5.8d	9.1d	3.3d