Different Intercropping Systems of Cotton-Sorghum: Study on Soil Nutrients, Cotton Agronomic Characters and Yield

doi:10.11924/j.issn.1000-6850.casb2022-0939

Abstract

Abstract:

To fully utilize the land resources and explore environmentally friendly, high-yield, and efficient cotton-sorghum intercropping systems, we conducted an experiment with sorghum and cotton intercropped by 'Jiliang 2' and 'Lu 6269' in Binzhou City, Shandong Province. Four intercropping patterns were adapted to analyze their effects on cotton agronomic traits, soil nutrient content, yield components, yield and economic benefits. The results showed that cotton-sorghum intercropping, compared with cotton monoculture, significantly increased cotton plant height, the number of fruiting branches and boll numbers, resulting in 0.73% to 6.13% increase in lint yield. Although fiber quality was decreased slightly, the soil available nutrient content was enhanced significantly. Among the three intercropping systems, the highest yield and economic benefits were observed in the one with 4-row cotton and 4-row sorghum. The lint yield in this pattern was 6.13% higher than that of cotton monoculture, and the economic benefits increased by 13.79%. Therefore, this pattern could be used in this area in order to improve yield potential in sorghum-cotton intercropping systems.

Key words: cotton, sorghum, intercropping, soil nutrients, agronomic characters, yield

WEI Xuewen, HAN Wenfeng, XU Qinqing, WANG Guifeng, XIONG Shiwu, WANG Zhanbiao. Different Intercropping Systems of Cotton-Sorghum: Study on Soil Nutrients, Cotton Agronomic Characters and Yield[J]. Chinese Agricultural Science Bulletin, 2024, 40(12): 28-32.

Figures/Tables 6

References 19

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处理名称	植株株高/cm	果枝数/个	成铃数/个
MG0	102.8	13.4	16.45
MG1	103.23	13.5	16.83
MG2	104.33	13.7	18.33
MG3	107.32	14.1	17.23

处理名称	植株株高/cm	果枝数/个	成铃数/个
MG0	102.8	13.4	16.45
MG1	103.23	13.5	16.83
MG2	104.33	13.7	18.33
MG3	107.32	14.1	17.23

土层/cm	处理	碱解氮 /(mg/kg)	有效磷 /(mg/kg)	速效钾 /(mg/kg)	有机质/(g/kg)	全氮/(g/kg)	全磷/(g/kg)	全钾/(g/kg)	pH
0~20	MG0 MG1 MG2 MG3	45.76	14.78	83.21	11.32	0.78	1.11	15.53	8.65
		49.38	20.53	106.67	11.41	0.91	1.15	16.84	8.56
		57.17	15.19	86.33	12.31	0.77	1.09	16.67	8.73
		54.89	17.10	127.00	12.30	0.78	1.13	14.87	8.70
20~40	MG0 MG1 MG2 MG3	40.21	14.12	70.43	11.04	0.61	0.98	12.46	8.57
		43.93	20.20	75.33	11.72	0.64	1.06	16.50	8.55
		51.93	15.06	77.67	11.58	0.66	1.02	16.20	8.60
		55.79	28.47	74.67	12.80	0.82	1.08	14.65	8.57

土层/cm	处理	碱解氮 /(mg/kg)	有效磷 /(mg/kg)	速效钾 /(mg/kg)	有机质/(g/kg)	全氮/(g/kg)	全磷/(g/kg)	全钾/(g/kg)	pH
0~20	MG0 MG1 MG2 MG3	45.76	14.78	83.21	11.32	0.78	1.11	15.53	8.65
		49.38	20.53	106.67	11.41	0.91	1.15	16.84	8.56
		57.17	15.19	86.33	12.31	0.77	1.09	16.67	8.73
		54.89	17.10	127.00	12.30	0.78	1.13	14.87	8.70
20~40	MG0 MG1 MG2 MG3	40.21	14.12	70.43	11.04	0.61	0.98	12.46	8.57
		43.93	20.20	75.33	11.72	0.64	1.06	16.50	8.55
		51.93	15.06	77.67	11.58	0.66	1.02	16.20	8.60
		55.79	28.47	74.67	12.80	0.82	1.08	14.65	8.57

处理	籽棉产量/(kg/hm²)	皮棉重量/(kg/hm²)	产量构成因素
处理	籽棉产量/(kg/hm²)	皮棉重量/(kg/hm²)	铃数/（个/株）	单铃重/g	衣分/%	籽指/g
MG0	3514.80b	1465.65b	11.32c	4.6a	41.7a	9.8b
MG1	3667.35a	1543.95a	11.56ab	4.7a	42.1a	10.1a
MG2	3549.00b	1476.45b	11.43b	4.6a	41.6a	10.0a
MG3	3721.35a	1555.50a	11.73a	4.7a	41.8a	10.2a