Effect of Decomposed Chicken Manure Replacing Nitrogen Fertilizer on Rice Yield, Nitrogen Utilization Rate and Soil Physicochemical Properties

doi:10.11924/j.issn.1000-6850.casb2024-0131

Abstract

Abstract:

The effects of decomposed chicken manure on the yield and quality of rice and soil physicochemical properties were studied for the poor soil structure of the foot-entangled soil in Dongtai. According to the principle of equal nitrogen substitution, seven treatments were set up, including no fertilization treatment, conventional treatment, and chicken manure replacing nitrogen fertilizer by 10%, 20%, 30%, 40%, and 50%, respectively. The results showed that compared with conventional treatment, chicken manure replacing nitrogen fertilizer significantly increased soil total nitrogen (0.86%-3.45%) and organic matter content (0.57%-9.53%), but decreased bulk density (0.73%-4.41%). Chicken manure replacing nitrogen fertilizer improved the yield and quality of rice, of which 20% nitrogen fertilizer substitution significantly increased rice yield by 19.44% (P<0.05) and the nitrogen utilization rate by 16.58% (P<0.05). Based on the economic benefits, chicken manure replacing 20% nitrogen fertilizer had the highest economic benefits, increasing rice yield and quality and improving soil structure. It is a relatively optimal proportion of chicken manure replacing nitrogen fertilizer and is worth promoting and applying.

Key words: rice, foot entangled soil, decomposed chicken manure, replacing nitrogen fertilizer, yield, quality, nitrogen utilization rate

XUN Xianyu, XIA Yangyang, ZHONG Yuehua, MENG Aihong, HE Lingling, ZHANG Junqiang, MA Hongbo, WANG Xiaoyun. Effect of Decomposed Chicken Manure Replacing Nitrogen Fertilizer on Rice Yield, Nitrogen Utilization Rate and Soil Physicochemical Properties[J]. Chinese Agricultural Science Bulletin, 2024, 40(25): 1-5.

Figures/Tables 7

References 21

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处理	基肥用量				分蘖肥（尿素）	穗肥（尿素）
处理	粪肥	尿素	过磷酸钙	硫酸钾	分蘖肥（尿素）	穗肥（尿素）
不施肥	0	0	0	0	0	0
常规对照	0.00	219.9	525.00	240.00	150.00	210.00
鸡粪替代氮肥10%	1875.00	197.85	525.00	240.00	135.00	187.50
鸡粪替代氮肥20%	3750.00	175.95	525.00	240.00	120.00	168.00
鸡粪替代氮肥30%	5625.00	153.9	525.00	240.00	105.00	147.00
鸡粪替代氮肥40%	7500.00	131.85	525.00	240.00	90.00	126.00
鸡粪替代氮肥50%	9375.00	109.95	525.00	240.00	75.00	105.00

处理	基肥用量				分蘖肥（尿素）	穗肥（尿素）
处理	粪肥	尿素	过磷酸钙	硫酸钾	分蘖肥（尿素）	穗肥（尿素）
不施肥	0	0	0	0	0	0
常规对照	0.00	219.9	525.00	240.00	150.00	210.00
鸡粪替代氮肥10%	1875.00	197.85	525.00	240.00	135.00	187.50
鸡粪替代氮肥20%	3750.00	175.95	525.00	240.00	120.00	168.00
鸡粪替代氮肥30%	5625.00	153.9	525.00	240.00	105.00	147.00
鸡粪替代氮肥40%	7500.00	131.85	525.00	240.00	90.00	126.00
鸡粪替代氮肥50%	9375.00	109.95	525.00	240.00	75.00	105.00

处理	穗数/(万/hm²)	穗粒数/(个/穗)	千粒重/g	产量/(kg/hm²)
不施肥	259.65b	89.63b	21.56b	5017.53c
常规施肥	333.00b	114.25a	25.85a	9834.60ab
鸡粪替代氮肥10%	351.15ab	111.37a	26.18a	10238.30ab
鸡粪替代氮肥20%	383.40a	117.85a	26.01a	11751.20a
鸡粪替代氮肥30%	361.80a	105.75a	26.43a	10112.30ab
鸡粪替代氮肥40%	345.60ab	110.50a	26.06a	9953.25ab
鸡粪替代氮肥50%	299.70b	110.80a	23.19b	7700.70b

处理	穗数/(万/hm²)	穗粒数/(个/穗)	千粒重/g	产量/(kg/hm²)
不施肥	259.65b	89.63b	21.56b	5017.53c
常规施肥	333.00b	114.25a	25.85a	9834.60ab
鸡粪替代氮肥10%	351.15ab	111.37a	26.18a	10238.30ab
鸡粪替代氮肥20%	383.40a	117.85a	26.01a	11751.20a
鸡粪替代氮肥30%	361.80a	105.75a	26.43a	10112.30ab
鸡粪替代氮肥40%	345.60ab	110.50a	26.06a	9953.25ab
鸡粪替代氮肥50%	299.70b	110.80a	23.19b	7700.70b

处理	产值/(元/hm²)	肥料成本/(元/hm²)	其他成本/(元/hm²)	利润/(元/hm²)	产投比
不施肥	15052.60	0.00	9000.00	6052.60	1.67
常规施肥	29514.60	3105.00	10500.00	15909.90	2.17
鸡粪替代氮肥10%	30714.80	3169.50	10950.00	16595.00	2.18
鸡粪替代氮肥20%	35253.50	3235.50	10950.00	21068.10	2.48
鸡粪替代氮肥30%	30336.80	3300.00	10950.00	16086.30	2.13
鸡粪替代氮肥40%	29859.80	3411.00	10950.00	15544.20	2.08
鸡粪替代氮肥50%	23106.60	3430.50	10950.00	8725.50	2.16