Changes of Soil Nutrient Content and Enzyme Activity in Sesame Continuous Cropping Land and Their Effects on Sesame Germination

doi:10.11923/j.issn.2095-4050.cjas2022-0014

Abstract

Abstract:

Continuous cropping obstacle is the main limiting factor affecting sesame production. To explore the effects of sesame continuous cropping on soil nutrients and enzyme activities, as well as the effects of soil extracts from continuous cropping for different years on sesame seed germination, this study used a 6-year location plot experiment to investigate the changes of soil nutrients and enzyme activities in sesame continuous cropping land, and the germination test was used to analyze the effect of soil extracts on the germination of sesame seeds. The results showed that sesame continuous cropping could cause the overall changes of soil nutrients and enzyme activities, and the changes of various indexes had significant interaction. The soil nutrients, enzyme activities and seed germination rate of continuous cropping for 1 year were close to those of CK, and all indexes decreased to the lowest when the continuous cropping was for 3 years. Soil nutrients and enzyme activities had significantly positive effects on the germination rate of sesame, and urease and total phosphorus had the greatest effects. This study could provide reference for understanding the impact of sesame continuous cropping on soil and optimizing sesame cultivation model.

Key words: sesame, continuous cropping, soil nutrient, soil enzyme activity, sesame germination

CUI Yanqin, LI Sida, XU Guizhen, HOU Shaofeng, GUAN Zhongbo, GUO Yuanzhang. Changes of Soil Nutrient Content and Enzyme Activity in Sesame Continuous Cropping Land and Their Effects on Sesame Germination[J]. Journal of Agriculture, 2023, 13(1): 21-25.

Figures/Tables 4

References 20

[1]	MOAZZAMI A A, KAMAL-ELDIN A. Sesame seed is a rich source of dietary lignans[J]. Journal of the American oil chemists' society, 2006, 83(8):719-723. doi: 10.1007/s11746-006-5029-7 URL
[2]	吕丰娟, 张志华, 汪瑞清, 等. 不同生育期芝麻根系分泌物对连作障碍的响应及其自毒作用[J]. 中国油料作物学报, 2021, 43(6):1087-1098.
[3]	李序进, 蔡立群, 李海亮. 兰州百合连作土壤碳氮磷化学计量特征及酶活性研究[J]. 中国农学通报, 2021, 37(6):82-88.
[4]	汪瑞清, 肖运萍, 魏林根, 等. 油料作物连作障碍形成机理与生态修复措施研究进展[J]. 农学学报, 2015(6):29-33.
[5]	GAO Z Y, HU Y Y, HAN M K, et al. Effects of continuous cropping of sweet potatoes on the bacterial community structure in rhizospheric soil[J]. BMC microbiology, 2021, 21(1).
[6]	GAO Z Y, HAN M K, HU Y Y, et al. Effects of continuous cropping of sweet potato on the fungal community structure in rhizospheric soil[J]. Frontiers in microbiology, 2019,10.
[7]	郭红伟. 连作对土壤性状和辣椒生育、生理代谢的影响[D]. 南京: 南京农业大学, 2011.
[8]	黄玉茜, 韩立思, 韩梅, 等. 花生连作对土壤酶活性的影响[J]. 中国油料作物学报, 2012, 34(1):96-100.
[9]	高桐梅, 吴寅, 李春明, 等. 芝麻连作对农艺性状及土壤生化特性的影响[J]. 土壤通报, 2016, 47(4):897-902.
[10]	汪瑞清, 肖运萍, 魏林根, 等. 连作年限对红壤旱地芝麻产量和主要病害的影响[J]. 湖南农业科学, 2014(24):33-35.
[11]	华菊玲, 刘光荣, 黄劲松. 连作对芝麻根际土壤微生物群落的影响[J]. 生态学报, 2012, 32(9):2936-2942.
[12]	CHEN M N, LI X, YANG Q L, et al. Soil uukaryotic microorganism succession as affected by continuous cropping of peanut-pathogenic and beneficial fungi were selected[J]. PloS one, 2012, 7(7):e40659. doi: 10.1371/journal.pone.0040659 URL
[13]	LI X G, DING C F, ZHANG T L, et al. Fungal pathogen accumulation at the expense of plant-beneficial fungi as a consequence of consecutive peanut monoculturing[J]. Soil biology and biochemistry, 2014, 72:11-18. doi: 10.1016/j.soilbio.2014.01.019 URL
[14]	陈培, 汪强, 赵莉, 等. 水分胁迫对芝麻种子萌发特性的影响[J]. 种子, 2012, 31(4):83-85.
[15]	关松荫. 土壤酶及其研究法[M]. 北京: 农业出版社, 1986.
[16]	崔雯雯. 连作对糜子生理特性及土壤环境效应的影响[DB/CD]. 杨凌:西北农林科技大学, 2013.
[17]	李忠, 江立庚, 唐荣华, 等. 连作对花生土壤酶活性、养分含量和植株产量的影响[J]. 土壤, 2018, 50(3):491-497.
[18]	刘垠霖. 连作年限对党参生长、土壤理化性状及酶活性的影响研究[D]. 兰州: 甘肃农业大学, 2020.
[19]	刘广深, 徐冬梅, 许中坚, 等. 用通径分析法研究土壤水解酶活性与土壤性质的关系[J]. 土壤学报, 2003, 40(5):756-762.
[20]	黄书涛. 黄河三角洲盐碱地土壤脲酶活性与土壤性质的通径分析[J]. 山东农业科学, 2007(6):89-91.

连作年限	发芽势	发芽率
CK	87.33±5.508a	93.67±1.528a
1	93.00±1.000a	96.33±0.577a
2	62.33±11.719b	78.67±12.055b
3	6.50±0.500c	6.50±0.500c
4	84.00±4.000a	84.00±3.512a
5	92.33±3.512a	96.00±1.000a
6	91.67±1.528a	95.00±4.359a

连作年限	发芽势	发芽率
CK	87.33±5.508a	93.67±1.528a
1	93.00±1.000a	96.33±0.577a
2	62.33±11.719b	78.67±12.055b
3	6.50±0.500c	6.50±0.500c
4	84.00±4.000a	84.00±3.512a
5	92.33±3.512a	96.00±1.000a
6	91.67±1.528a	95.00±4.359a

连作年限	全氮/%	全磷/%	碱解氮/(mg/kg)	速效磷/(mg/kg)	速效钾/(mg/kg)	有机质/%
CK	0.125±0.0028b	0.237±0.0021cd	73.085±1.0677b	32.868±0.2772c	248.420±0.0000b	1.895±0.0283b
1	0.138±0.0014a	0.296±0.0049a	78.100±0.6930a	67.515±1.9870a	264.000±0.0000a	2.046±0.0608a
2	0.120±0.0000c	0.234±0.0014cd	67.060±1.0607c	37.590±0.6788b	182.180±0.0000e	1.717±0.0403c
3	0.105±0.0014e	0.230±0.0170cd	58.390±1.5981d	22.150±0.5374e	182.180±0.0000e	1.464±0.0396d
4	0.109±0.0007de	0.230±0.0141cd	59.500±2.0930d	23.900±0.6619de	197.995±0.7707d	1.507±0.0078d
5	0.111±0.0014d	0.222±0.0057d	76.200±0.1414a	25.520±0.8598d	214.360±0.7778c	1.511±0.0339d
6	0.109±0.0007de	0.250±0.0085bc	60.500±0.7495d	25.960±0.9051d	177.140±0.0000f	1.502±0.0339d

连作年限	全氮/%	全磷/%	碱解氮/(mg/kg)	速效磷/(mg/kg)	速效钾/(mg/kg)	有机质/%
CK	0.125±0.0028b	0.237±0.0021cd	73.085±1.0677b	32.868±0.2772c	248.420±0.0000b	1.895±0.0283b
1	0.138±0.0014a	0.296±0.0049a	78.100±0.6930a	67.515±1.9870a	264.000±0.0000a	2.046±0.0608a
2	0.120±0.0000c	0.234±0.0014cd	67.060±1.0607c	37.590±0.6788b	182.180±0.0000e	1.717±0.0403c
3	0.105±0.0014e	0.230±0.0170cd	58.390±1.5981d	22.150±0.5374e	182.180±0.0000e	1.464±0.0396d
4	0.109±0.0007de	0.230±0.0141cd	59.500±2.0930d	23.900±0.6619de	197.995±0.7707d	1.507±0.0078d
5	0.111±0.0014d	0.222±0.0057d	76.200±0.1414a	25.520±0.8598d	214.360±0.7778c	1.511±0.0339d
6	0.109±0.0007de	0.250±0.0085bc	60.500±0.7495d	25.960±0.9051d	177.140±0.0000f	1.502±0.0339d

连作年限	脱氢酶/ [μg/(d·g)]	±CK/%	脲酶/ [μg/(d·g)]	±CK/%	过氧化物酶/ [μmol/(h·g)]	±CK/%	蔗糖酶/ [mg/(d·g)]	±CK/%	酸性磷酸酶/ (nmol/h/g)	±CK（%）
CK	234.06±8.29a		2345.36±6.21b		319.64±2.94b		37.33±0.29b		557.06±6.51b
1	220.13±2.37b	-5.95	2476.36±19.68a	5.59	270.39±0.96d	-18.98	39.96±0.26a	7.04	651.03±6.03a	16.87
2	175.18±1.9d	-25.16	1828.32±15.20d	-22.05	282.05±5.41c	-14.48	34.30±0.09d	-8.12	403.27±3.27g	-27.61
3	144.38±4.67e	-38.31	1420.11±28.17g	-39.45	270.18±3.86d	-19.06	27.10±0.20h	-27.41	320.16±9.08h	-42.53
4	146.75±2.6e	-37.30	1599.05±16.70f	-31.82	325.35±1.26a	2.20	33.10±0.12e	-11.35	417.72±2.49f	-25.01
5	185.73±4.6c	-20.65	1902.56±29.03c	-18.88	317.09±0.17b	-0.98	31.79±0.33f	-14.83	462.83±8.11e	-16.92
6	166.83±5.28d	-28.72	1723.80±14.88e	-26.50	268.64±1.45d	-19.65	29.14±0.21g	-21.95	489.11±2.68d	-12.20