氮添加对不同种植模式下人工草地产量稳定性的影响

doi:10.3864/j.issn.0578-1752.2025.15.006

Abstract

Abstract:

【Objective】 The agro-pastoral ecotone in northern China is an important production base for agricultural and livestock products and a crucial ecological security barrier. This study analyzed the effects of different planting patterns on pasture yield, interspecific compatibility, and yield stability, aiming to provide the important scientific evidence for revealing the sustainable utilization of artificially established grasslands under different planting patterns with nitrogen addition.【Method】 Based on the long-term cultivated grassland core experimental platform at the Hulunbuir National Field Station, three planting patterns were established: single sowing of Medicago varia (M), single sowing of Bromus inermis (B), and a 1:1 mixed sowing of Medicago varia and Bromus inermis (M:B). Additionally, three nitrogen application levels were set: no nitrogen (CK), 75 kg N·hm^-2(N₇₅), and 150 kg N·hm^-2 (N₁₅₀). Indicators, such as yield, relative yield (RY), relative yield total (RYT), competition ratio (CR), stability, and asynchrony, were utilized to investigate the response of forage yield to nitrogen addition under different planting patterns in artificial grasslands.【Result】 (1) Through eight years of long-term site-specific observations, the results showed that both N₇₅ and N₁₅₀ treatments significantly increased the forage yield of mixed-sown grasslands in the early stages. Specifically, the N₁₅₀ treatment promoted the forage yield of monoculture grasslands. Moreover, under different nitrogen application levels, the forage yield and stability of mixed-sown grasslands were consistently higher than those of monoculture grasslands. (2) In the mixed-sown grassland of variegated alfalfa and smooth brome, the competition ratio of variegated alfalfa was greater than 1 in the first to fifth year after establishment, and less than 1 in the sixth to eighth year. This indicated that variegated alfalfa was highly competitive in the early stages, while smooth brome maintained system balance through continuous nutrient utilization in the later stages. This temporal complementarity enhanced the forage yield stability of the mixed-sown grassland by 1.41-1.53 times and the asynchrony by 1.27-1.57 times, thereby buffering yield fluctuations. Furthermore, there was a positive correlation between stability and asynchrony.【Conclusion】 Species yield asynchrony and stability were key factors determining the stability of mixed-sowing yields. For establishing monoculture artificial grasslands of variegated alfalfa or smooth brome in the Hulunbuir region, it was recommended to apply 150 kg N·hm^-2 of nitrogen. For establishing mixed-sown grasslands of variegated alfalfa and smooth brome, it was advisable to increase the nitrogen application rate to 75 kg N·hm^-2 during the initial establishment phase. Through complementary symbiosis, legume-grass mixed-sown pastures could effectively utilize soil nutrients, increase forage yield, and simultaneously reduce the amount of exogenous nitrogen applied, thereby achieving the goal of promoting and maintaining high pasture productivity.

Key words: nitrogen addition, pastureland, cropping pattern, yield, interspecific compatibility, asynchronism

YUAN Bo, XU LiJun, CUO MeJi, NIE YingYing, ZHANG HongZhi, LIU XinWei, YANG Min, GUO MingYing. The Impact of Nitrogen Addition on the Species Stability of Artificial Grasslands Under Different Planting Patterns[J].Scientia Agricultura Sinica, 2025, 58(15): 3007-3019.

Figures/Tables 7

Table 1

Fig. 1

Fig. 2

Fig. 3

Table 2

Fig. 4

Fig. 5

References 49

[1]	NIE Y Y, XU L J, XIN X P, YE L M. Long-term grassland diversity-productivity relationship regulated by management regimes in northern China. Science of The Total Environment, 2024, 949: 175084.
[2]	XU L J, LI D, WANG D, YE L M, NIE Y Y, FANG H J, XUE W, BAI C L, VAN RANST E. Achieving the dual goals of biomass production and soil rehabilitation with sown pasture on marginal cropland: Evidence from a multi-year field experiment in Northeast Inner Mongolia. Frontiers in Plant Science, 2022, 13: 985864.
[3]	YUAN B, XU L J, WEI J Q, CUO M J, ZHANG H Z, NIE Y Y, GUO M Y, LI J X, LIU X W. Medicago pasture soil C: N: P stoichiometry mediated by N fertilization in northern China. Agronomy, 2025, 15(3): 724.
[4]	JENSEN E S, PEOPLES M B, BODDEY R M, GRESSHOFF P M, HAUGGAARD-NIELSEN H, J R ALVES B, MORRISON M J. Legumes for mitigation of climate change and the provision of feedstock for biofuels and biorefineries. A review. Agronomy for Sustainable Development, 2012, 32(2): 329-364.
[5]	OLIVARES J, BEDMAR E J, SANJUÁN J. Biological nitrogen fixation in the context of global change. Molecular Plant-Microbe Interactions, 2013, 26(5): 486-494. doi: 10.1094/MPMI-12-12-0293-CR pmid: 23360457
[6]	谢开云, 张英俊, 李向林, 何峰, 万里强, 王栋, 秦燕. 无芒雀麦和紫花苜蓿在(1: 1)混播中的竞争与共存. 中国农业科学, 2015, 48(18): 3767-3778. doi:10.3864/j.issn.0578-1752.2015.18.020.
	XIE K Y, ZHANG Y J, LI X L, HE F, WAN L Q, WANG D, QIN Y. Competition and coexistence of alfalfa (Medicago sativa L.) and smooth brome(Bromus inermis layss.) in mixture. Scientia Agricultura Sinica, 2015, 48(18): 3767-3778. doi:10.3864/j.issn.0578-1752.2015.18.020. (in Chinese)
[7]	汪爱霞, 马彦麟, 齐广平, 康燕霞, 银敏华, 汪精海, 贾琼, 唐仲霞, 姜渊博. 无芒雀麦与苜蓿混播草地生产力提升的水氮调控模式. 水土保持学报, 2022, 36(2): 321-330.
	WANG A X, MA Y L, QI G P, KANG Y X, YIN M H, WANG J H, JIA Q, TANG Z X, JIANG Y B. Water and nitrogen regulation patterns for productivity improvement of bromus inermis and alfalfa mixed grassland. Journal of Soil and Water Conservation, 2022, 36(2): 321-330. (in Chinese)
[8]	WANG L L, XIE J H, LUO Z Z, NIU Y N, COULTER J A, ZHANG R Z, LI L L. Forage yield, water use efficiency, and soil fertility response to alfalfa growing age in the semiarid Loess Plateau of China. Agricultural Water Management, 2021, 243: 106415.
[9]	XU L J, YE L M, NIE Y Y, YANG G X, XIN X P, YUAN B, YANG X F. Sown alfalfa pasture decreases grazing intensity while increasing soil carbon: Experimental observations and DNDC model predictions. Frontiers in Plant Science, 2022, 13: 1019966.
[10]	崔增. 人工草地对半干旱区农田土壤质量改善及水分效应研究[D]. 杨凌: 西北农林科技大学, 2019.
	CUI Z. Effects of artificial grasslands on soil quality and soil moisture of farmland in semi-arid areas[D]. Yangling: Northwest A&F University, 2019. (in Chinese)
[11]	吴宛萍. 混播比例对陇东黄土高原紫花苜蓿/无芒雀麦草地土壤有机碳库的影响[D]. 兰州:兰州大学 2023.
	WU W P. Effect of mixing ratio on soil organic carbon pool of alfalfa/ smooth bromegrass mixture in Longdong Loess Plateau[D]. Lanzhou: Lanzhou University, 2023. (in Chinese)
[12]	郑伟, 朱进忠, 加娜尔古丽, 李海, 张景路. 不同混播方式对豆禾混播草地生产性能的影响. 中国草地学报, 2011, 33(5): 45-52.
	ZHENG W, ZHU J Z, JIA N, LI H, ZHANG J L. Effects of different mixed sowing patterns on production performance of legume-grass mixture. Chinese Journal of Grassland, 2011, 33(5): 45-52. (in Chinese)
[13]	赵保文, 詹圆, 方嘉琪, 周青平, 汪辉. 混播比例对燕麦与箭筈豌豆生产性能的影响. 中国草地学报, 2024, 46(3): 81-90.
	ZHAO B W, ZHAN Y, FANG J Q, ZHOU Q P, WANG H. Mixing ratios effects on production performance and quality in oat and common vetch intercropping systems. Chinese Journal of Grassland, 2024, 46(3): 81-90. (in Chinese)
[14]	祁亚淑, 朱林, 许兴. 宁夏绿洲禾豆牧草混播组合及其比例效应. 草业科学, 2015, 32(9): 1463-1472.
	QI Y S, ZHU L, XU X. Effects of mixed combination and proportion between leguminous and graminaceous forages grown in Ningxia desert steppe. Pratacultural Science, 2015, 32(9): 1463-1472. (in Chinese)
[15]	FOSTER A, VERA C L, MALHI S S, CLARKE F R. Forage yield of simple and complex grass-legume mixtures under two management strategies. Canadian Journal of Plant Science, 2014, 94(1): 41-50.
[16]	FRANKOW-LINDBERG B E, DAHLIN A S. N2 fixation, N transfer, and yield in grassland communities including a deep-rooted legume or non-legume species. Plant and Soil, 2013, 370(1): 567-581.
[17]	许莹月, 侯钰荣, 王静, 周晨烨, 孙宗玖, 朝木力嘎, 柯梅, 王玉祥. 豆禾间行混播对草地生产性能与土壤养分的影响. 中国草地学报, 2024, 46(10): 75-86.
	XU Y Y, HOU Y R, WANG J, ZHOU C Y, SUN Z J, ZHAO M L G, KE M, WANG Y X. Effects of intercropping mixture of legume and grass on grassland production performance and soil nutrients. Chinese Journal of Grassland, 2024, 46(10): 75-86. (in Chinese)
[18]	刘敏, 龚吉蕊, 王忆慧, 张梓榆, 徐沙, 罗亲普. 豆禾混播建植人工草地对牧草产量和草质的影响. 干旱区研究, 2016, 33(1): 179-185.
	LIU M, GONG J R, WANG Y H, ZHANG Z Y, XU S, LUO Q P. Effects of legume-grass mixed sowing on forage grass yield and quality in artificial grassland. Arid Zone Research, 2016, 33(1): 179-185. (in Chinese)
[19]	LI W J, LI J H, LU J F, ZHANG R Y, WANG G. Legume-grass species influence plant productivity and soil nitrogen during grassland succession in the eastern Tibet Plateau. Applied Soil Ecology, 2010, 44(2): 164-169.
[20]	WICHERN F, MAYER J, JOERGENSEN R G, MÜLLER T. Rhizodeposition of C and N in peas and oats after ¹³C-¹⁵N double labelling under field conditions. Soil Biology and Biochemistry, 2007, 39(10): 2527-2537.
[21]	SHAH Z, SHAH S H, PEOPLES M B, SCHWENKE G D, HERRIDGE D F. Crop residue and fertiliser N effects on nitrogen fixation and yields of legume-cereal rotations and soil organic fertility. Field Crops Research, 2003, 83(1): 1-11.
[22]	DONOHUE I, HILLEBRAND H, MONTOYA J M, PETCHEY O L, PIMM S L, FOWLER M S, HEALY K, JACKSON A L, LURGI M, MCCLEAN D, O’CONNOR N E, O’GORMAN E J, YANG Q. Navigating the complexity of ecological stability. Ecology Letters, 2016, 19(9): 1172-1185. doi: 10.1111/ele.12648 pmid: 27432641
[23]	WANG S P, LAMY T, HALLETT L M, LOREAU M. Stability and synchrony across ecological hierarchies in heterogeneous metacommunities: Linking theory to data. Ecography, 2019, 42(6): 1200-1211.
[24]	YAN Y, CONNOLLY J, LIANG M W, JIANG L, WANG S P. Mechanistic links between biodiversity effects on ecosystem functioning and stability in a multi-site grassland experiment. Journal of Ecology, 2021, 109(9): 3370-3378.
[25]	张永亮, 张丽娟, 于铁峰, 潘东. 禾豆组合与间作方式对牧草产量及产量稳定性的影响. 草地学报, 2019, 27(5):1410-1418. doi: 10.11733/j.issn.1007-0435.2019.05.037
	ZHANG Y L, ZHANG L J, YU T F, PAN D. Effects of grass-legume combinations and intercropping patterns on the forage yield and yield stability. Chinese Journal of Grassland, 2019, 27(5):1410-1418. (in Chinese)
[26]	董世魁. 高寒地区多年生禾草混播草地群落稳定性及其调控机制研究[D]. 兰州: 甘肃农业大学, 2001.
	DONG S K. The stability of mixture grassland of cultivated perennial grass and its regulation in alpine region of Qinghai-Tibetan plateau of China[D]. Lanzhou: Gansu Agricultural University, 2001. (in Chinese)
[27]	YAN H L, GU S S, LI S Z, SHEN W L, ZHOU X L, YU H, MA K, ZHAO Y G, WANG Y C, ZHENG H, DENG Y, LU G X. Grass- legume mixtures enhance forage production via the bacterial community. Agriculture, Ecosystems & Environment, 2022, 338: 108087.
[28]	王建光. 农牧交错区苜蓿-禾草混播模式研究[D]. 北京: 中国农业科学院, 2012.
	WANG J G. Study on mixed-sowing modes of alfalfa and grasses in the farming pasture region[D]. Beijing: Chinese Academy of Agricultural Sciences, 2012. (in Chinese)
[29]	曾昭海. 豆科作物与禾本科作物轮作研究进展及前景. 中国生态农业学报, 2018, 26(1): 57-61.
	ZENG Z H. Progress and perspective of legume-gramineae rotations. Chinese Journal of Eco-Agriculture, 2018, 26(1): 57-61. (in Chinese)
[30]	MONTEROS M J, HAN Y, BRUMMER E C. Alfalfa. Genetics, Genomics and Breeding of Forage Crops. Boca Raton: CRC Press, 2014: 187-219.
[31]	ILYAS N, YANG Y J, ZHANG C S, SINGH R P, YU Q G, YUAN Y, YOU X W, LI Y Q. Temporal dynamics and variation in the alfalfa root nodule and rhizosphere microbial communities of coastal sand and lawn soil. Journal of Plant Interactions, 2022, 17(1): 173-182.
[32]	JI S N, LU X W, LI X N, HAUTIER Y, WANG C. Nitrogen addition strengthens the stabilizing effect of biodiversity on productivity by increasing plant trait diversity and species asynchrony in the artificial grassland communities. Frontiers in Plant Science, 2023, 14: 1301461.
[33]	王博杰, 唐海萍, 何丽, 林国辉, 赵世杰, 赵明旭. 农牧交错区旱作条件下苜蓿和冰草人工草地稳定性研究. 草业学报, 2016, 25(4): 222-229. doi: 10.11686/cyxb2015287
	WANG B J, TANG H P, HE L, LIN G H, ZHAO S J, ZHAO M X. Stability of alfalfa and wheatgrass pasture under dry farming in a pastoral agronomy area. Acta Protoculture Sinica, 2016, 25(4): 222-229. (in Chinese)
[34]	冀超, 殷国梅, 刘思博, 慕宗杰, 薛艳林, 李敬忠, 马春梅, 张英, 杨风兰, 梁叶文. 氮肥水平对紫花苜蓿农艺性状及经济效益的影响. 北方农业学报, 2021, 49(5): 127-134. doi: 10.12190/j.issn.2096-1197.2021.05.18
	JI C, YIN G M, LIU S B, MU Z J, XUE Y L, LI J Z, MA C M, ZHANG Y, YANG F L, LIANG Y W. Effect of nitrogen levels on alfalfa agronomic traits and economic benefit. Journal of Northern Agriculture, 2021, 49(5): 127-134. (in Chinese) doi: 10.12190/j.issn.2096-1197.2021.05.18
[35]	万井尉. 紫花苜蓿人工草地施肥试验. 现代畜牧兽医, 2015, 1: 10-14.
	WAN J W. Fertilization experiment of alfalfa artificial grassland. Modern Journal of Animal Husbandry and Veterinary Medicine, 2015, 1: 10-14. (in Chinese)
[36]	徐然然, 常生华, 贾倩民, SHAHZAD A, 张程, 刘永杰, 侯扶江. 施氮和利用方式对黄土高原禾豆混播草地产量、品质和水分利用的影响. 草地学报, 2020, 28(6): 1744-1755. doi: 10.11733/j.issn.1007-0435.2020.06.030
	XU R R, CHANG S H, JIA Q M, SHAHZAD A, ZHANG C, LIU Y J, HOU F J. Effects of nitrogen application and utilization methods on yield, quality and water use of grass-legume mixed grassland in loess plateau. Chinese Journal of Grassland, 2020, 11: 174-1755. (in Chinese)
[37]	谢开云, 李向林, 何峰, 万里强, 王栋, 秦燕, 余群. 单播与混播下紫花苜蓿与无芒雀麦生物量对氮肥的响应. 草业学报, 2014, 23(6): 148-156. doi: 10.11686/cyxb20140619
	XIE K Y, LI X L, HE F, WAN L Q, WANG D, QIN Y, YU Q. Response of alfalfa and smooth brome to nitrogen fertilizer in monoculture and mixed grasslands. Acta Protoculture Sinica, 2014, 23(6): 148-156. (in Chinese)
[38]	张馨文. 氮添加对荒漠草原生产力及群落稳定性的影响机制[D]. 银川: 宁夏大学, 2022.
	ZHANG X W. Effects and mechanism of nitrogen addition on productivity and community stability in the desert grassland[D]. Yinchuan: Ningxia University, 2022. (in Chinese)
[39]	才璐, 王林林, 罗珠珠, 李玲玲, 牛伊宁, 蔡立群, 谢军红. 中国苜蓿产量及水分利用效率对种植年限响应的Meta分析. 草业学报, 2020, 29(6): 27-38. doi: 10.11686/cyxb2019404
	CAI L, WANG L L, LUO Z Z, LI L L, NIU Y N, CAI L Q, XIE J H. Meta-analysis of alfalfa yield and WUE response to growing ages in China. Acta Protoculture Sinica, 2020, 29(6): 27-38. (in Chinese)
[40]	李裕元, 邵明安, 上官周平, 樊军, 王丽梅. 黄土高原北部紫花苜蓿草地退化过程与植被演替研究. 草业学报, 2006, 15(2): 85-92.
	LI Y Y, SHAO M A, SHANG G Z P, FAN J, WANG L M. Study on the degrading process and vegetati on successi on of Medicagosativa grassland in north loess plateau, China. Acta Protoculture Sinica, 2006, 15(2): 85-92. (in Chinese)
[41]	NUTTALL W F, MCCARTNEY D H, HORTON P R, BITTMAN S, WADDINGTON J. The effect of N, P, S fertilizer, temperature and precipitation on the yield of bromegrass and alfalfa pasture established on a Luvisolic soil. Canadian Journal of Plant Science, 1991, 71(4): 1047-1055.
[42]	谢开云. 氮素添加对紫花苜蓿和无芒雀麦种间关系及氮素平衡的影响[D]. 北京: 中国农业大学, 2015.
	XIE K Y. Effect of nitrogen addition on interspecific relationship and nitrogen balance of alfalfa and smooth bromegrass[D]. Beijing: Chinese Agricultural University, 2015. (in Chinese)
[43]	WU Q, REN H Y, WANG Z W, LI Z G, LIU Y H, WANG Z, LI Y H, ZHANG R Y, ZHAO M L, CHANG S X, HAN G D, HECTOR A. Additive negative effects of decadal warming and nitrogen addition on grassland community stability. Journal of Ecology, 2020, 108(4): 1442-1452.
[44]	李治国. 紫花苜蓿-无芒雀麦混播群落稳定性及其产量因子模型建立的研究[D]. 呼和浩特: 内蒙古农业大学, 2005.
	LI Z G. The study of community stability and the establishment of yield factors model about mix-sowing of Medicago Sativa&Bromus Innermis[D]. Hohhot: Inner Mongolia Agricultural University, 2005. (in Chinese)
[45]	LOREAU M, DE MAZANCOURT C. Species synchrony and its drivers: neutral and nonneutral community dynamics in fluctuating environments. The American Naturalist, 2008, 172(2): E48-E66.
[46]	NIU D C, YUAN X B, CEASE A J, WEN H Y, ZHANG C P, FU H, ELSER J J. The impact of nitrogen enrichment on grassland ecosystem stability depends on nitrogen addition level. Science of The Total Environment, 2018, 618: 1529-1538.
[47]	杜忠毓. 水氮添加对荒漠草原植物种间关系及群落稳定性的影响[D]. 银川: 宁夏大学, 2021.
	DU Z Y. Effects of water and nitrogen addition on the plant interspecific association and community stability in the desert grassland[D]. Yinchuan: Ningxia University, 2021. (in Chinese)
[48]	HEJCMAN M, ČEŠKOVÁ M, SCHELLBERG J, PÄTZOLD S. The rengen grassland experiment: effect of soil chemical properties on biomass production, plant species composition and species richness. Folia Geobotanica, 2010, 45(2): 125-142.
[49]	MOLINA J A, MARTÍN-SANZ J P, VALVERDE-ASENJO I, SÁNCHEZ-JIMÉNEZ A, QUINTANA J R. Mediterranean grassland succession as an indicator of changes in ecosystem biodiversity and functionality. Biodiversity and Conservation, 2023, 32(1): 95-118.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

处理方式 Treatment	牧草产量 Yield of grass (kg·hm^-2)								平均值 Average value
处理方式 Treatment	2016	2017	2018	2019	2020	2021	2022	2023	平均值 Average value
M-CK	1725.00±329.13abD	9954.26±1310.15aB	9998.66±862.82aB	7218.33±2878.70aC	9315.65±1059.68bBC	12969.72±375.53aA	10720.28±3095.22aAB	9628.52±1212.77aABC	8941.30±3541.97a
M-N₇₅	2249.63±550.10aB	10337.13±3116.74aA	10989.95±1353.53aA	9555.60±3174.82aA	12089.91±1559.61aA	12701.57±1856.93aA	10852.04±1285.57aA	11777.96±3174.54aA	10069.22±3814.67a
M-N₁₅₀	1385.93±392.70bE	9546.30±2410.74aCD	10938.10±1112.34aBC	7850.00±2368.79aD	10886.94±1614.57abBC	14150.56±1515.30aA	13013.43±2614.56aAB	12257.13±1705.02aABC	10003.55±4176.72a
B-CK	2592.69±628.78aE	15475.00±2669.89aA	9012.59±1325.26aC	4872.22±1256.79aDE	8384.35±2283.31aC	12781.85±1562.70aB	7565.46±1146.32aC	6457.87±1670.56aCD	8392.75±4226.25a
B-N₇₅	1855.28±720.52aD	13648.33±4796.95aA	11305.09±2736.12aAB	3514.63±873.51aD	7441.11±1553.76aC	14047.04±1456.17aA	8882.87±1963.69aBC	7624.17±1328.37aC	8539.81±4718.40a
B-N₁₅₀	2767.69±1030.97aE	13633.80±1387.09aA	11381.67±2043.47aB	5238.70±1347.22aD	7935.93±538.57aC	15451.94±1146.30aA	7364.51±378.68aC	7955.83±1209.02aC	8966.26±4165.87a
M:B-CK	1936.85±567.71aE	12151.11±2944.89aBC	11082.13±1645.66aB	6676.85±2086.63aD	13015.83±2211.19aBC	18254.72±2316.09aA	10426.48±3036.11aCD	11586.20±2144.68aCD	11207.62±5018.71a
M:B-N₇₅	2016.85±371.92aD	11133.33±2308.68aB	12107.59±2171.98abAB	5830.86±1325.76aC	12053.98±826.56aAB	15402.41±3047.63aA	10462.69±2025.77aB	10322.31±1957.68aB	10499.88±4301.56a
M:B-N₁₅₀	2412.04±920.17aD	12298.70±1648.81aBC	14381.85±753.80aB	6165.74±1084.21aC	12009.26±1801.24aA	18610.56±4521.26aA	9286.67±2575.09aC	8982.87±1120.55aC	11140.28±5187.74a

处理方式 Treatment	单播稳定性 The stability of single sowing		混播稳定性 The stability of mixed sowing		混播异步性 The asynchrony of mixed sowing
处理方式 Treatment	2016—2019	2020—2023	2016—2019	2020—2023	2016—2019	2020—2023
M-CK	2.00±0.11aB	5.91±1.73aA	3.21±0.61aB	10.67±3.39aA	0.62±0.04aA	0.56±0.36aA
M-N₇₅	2.26±0.18aB	6.83±1.61aA	2.77±0.57aA	10.43±5.87aA	0.70±0.08aA	0.73±0.54aA
M-N₁₅₀	1.99±0.24aB	7.58±2.65aA	3.02±0.52aB	9.51±3.24aA	0.63±0.08aA	0.41±0.21aA
B-CK	1.65±0.27aB	3.46±0.59aA	4.84±0.63aA	5.41±2.12aA	0.41±0.05aB	1.00±0.29aA
B-N₇₅	1.57±0.40aB	3.65±1.10aA	4.39±1.71aA	5.10±1.00aA	0.39±0.06aB	0.97±0.19aA
B-N₁₅₀	1.85±0.34aB	2.93±0.42aA	4.79±1.11aA	3.70±0.92aA	0.40±0.06aB	0.90±0.02aA
平均值 Average
CK	1.83±0.27aB	4.68±1.78aA	4.02±1.02aB	8.04±3.86aA	0.52±0.11aA	0.78±0.39aA
N₇₅	1.91±0.46aB	5.24±2.11aA	3.58±1.51aA	7.77±4.98aA	0.54±0.17aA	0.85±0.42aA
N₁₅₀	1.92±0.30aB	5.26±3.00aA	3.91±1.24aA	6.61±3.76aA	0.51±0.13aA	0.65±0.29aA

The Impact of Nitrogen Addition on the Species Stability of Artificial Grasslands Under Different Planting Patterns

RichHTML

PDF

Abstract

Cite this article

share this article

Figures/Tables 7

References 49

Related Articles 15

Metrics

Comments

Recommended 0

[1]	PENG TingShen, LU JiuYan, WU MeiLin, YAN YuXin, LIU HongZhou, NAN WenBin, QIN XiaoJian, LI Ming, GONG JunYi, LIANG YongShu. QTL Analysis of Yield-Related Traits in Both Huangnuo2^# and Changbai7^# of Perennial Chinese Rice [J]. Scientia Agricultura Sinica, 2026, 59(7): 1361-1379.
[2]	WANG YuPing, FU Zhi, SUN JiaYing, MU XiaoMeng, LIU HuiLin, GUO JinYun, SONG WenJing, HOU LeiPing, ZHAO HaiLiang. Evaluation of the Mitigating Effect and Application Efficacy of Melatonin Applied at the Seedling Stage on Short-Term Chilling Stress in Tomato Plants [J]. Scientia Agricultura Sinica, 2026, 59(7): 1523-1535.
[3]	WANG JiaNuo, CHEN GuiPing, LI Pan, WANG LiPing, NAN YunYou, HE Wei, FAN ZhiLong, HU FaLong, CHAI Qiang, YIN Wen, ZHAO LiaoHao. Photo-Physiological Mechanism at Grain Filling Stage of No-Tillage with Plastic Re-Mulching to Increase Maize Yield in Oasis Irrigation Areas [J]. Scientia Agricultura Sinica, 2026, 59(6): 1189-1202.
[4]	ZHOU XinJie, REN Hao, CHEN YingLong, ZHANG JiWang, ZHAO Bin, REN BaiZhao, LIU Peng, WANG HongZhang. Effects of Calcium Peroxide on Root Morphology and Yield Formation of Summer Maize in Waterlogging Farmland [J]. Scientia Agricultura Sinica, 2026, 59(6): 1203-1216.
[5]	HE JiHang, ZHANG Qing, LÜ XiangYue, XUE JiQuan, XU ShuTu, LIU JianChao. Evaluation of Nitrogen Efficiency of Different Stay-Green Maize Hybrids [J]. Scientia Agricultura Sinica, 2026, 59(6): 1217-1230.
[6]	GUO FuCheng, TANG HaiJiang, HAO XinYi, MA GuoLin, YANG JiuJu, HUANG LinFeng, TIAN Lei, WANG Bin, LUO ChengKe. Effects of Different Irrigation Methods on Water-Salt Transport, Rice Yield, and Water Use Efficiency in Saline Soil in Ningxia [J]. Scientia Agricultura Sinica, 2026, 59(4): 750-764.
[7]	HAO Kun, CHEN HongDe, ZHANG Wei, ZHONG Yun, DANG MeiRong, ZHU ShiJiang, HUANG ZhiKun, JIN Ying. Comprehensive Evaluation of Water-Nitrogen Management Under Surge-Root Irrigation Based on Citrus Yield, Quality, and Water- Nitrogen Use Efficiency [J]. Scientia Agricultura Sinica, 2026, 59(4): 862-873.
[8]	YAN TingLin, DU YaDan, HU XiaoTao, WANG He, LI XiaoYan, WANG YuMing, NIU WenQuan, GU XiaoBo. The Impacts of Nitrogen Fertilizer Organic Alternatives Under Aerated Drip Irrigation on Cotton Yield and Water Use Efficiency Under Deficit Irrigation Conditions [J]. Scientia Agricultura Sinica, 2026, 59(3): 602-618.
[9]	YANG Rui, CHEN JingDong, HUANG Ying, XIE LingLi, ZHANG XueKun, ZHOU DengWen, LIU QingYun, XU JinSong, XU BenBo. Genetic Improvement and Configuration Analysis of High-Yield Rapeseed Lines in the Upper Reaches of the Yangtze River [J]. Scientia Agricultura Sinica, 2026, 59(2): 250-264.
[10]	CHEN GuiPing, WEI JinGui, GUO Yao, LI Pan, WANG FeiEr, QIU HaiLong, FENG FuXue, YIN Wen. Synergistic Effects of Wide-Narrow Row and Density Enhancement on the Photosynthetic Characteristics and Resource Utilization of Maize in Oasis Irrigation Areas [J]. Scientia Agricultura Sinica, 2026, 59(2): 278-291.
[11]	CAI TingYang, ZHU YuPeng, LI RuiDong, WU ZongSheng, XU YiFan, SONG WenWen, XU CaiLong, WU CunXiang. Effects of Leaf-Cutting at Seedling Stage on Photosynthetic Characteristics, Pod Distribution and Yield Formation in Soybean in the Huang-Huai-Hai Region [J]. Scientia Agricultura Sinica, 2026, 59(2): 292-304.
[12]	ZHANG ZhiYong, TAN ShiChao, XIONG ShuPing, MA XinMing, WEI YiHao, WANG XiaoChun. Effects of Annual Water and Nitrogen Optimization on Yield and Nitrogen Migration of Wheat-Maize Rotation System in Irrigation Area of Northern Henan [J]. Scientia Agricultura Sinica, 2026, 59(2): 336-353.
[13]	LÜ XuDong, SUN ShiYuan, LI YaNan, LIU YuLong, WANG YanQun, FU Xin, ZHANG JiaYing, NING Peng, PENG ZhengPing. Effects of Intelligent Mechanized Layered Fertilization on Root-Soil Nutrient Distribution and Yield in Wheat Fields [J]. Scientia Agricultura Sinica, 2026, 59(1): 129-146.
[14]	LU Hao, ZHANG MingLong, HAN Mei, YAN QingBiao, LI ZhengPeng, YIN Wen, FAN ZhiLong, HU FaLong, CHAI Qiang. Green Manure Returning via Sheep Digest with Nitrogen Fertilizer Reduction are Beneficial to Improve Wheat Yield and Soil Quality at Qinghai-Tibet Plateau [J]. Scientia Agricultura Sinica, 2026, 59(1): 147-160.
[15]	YE MeiJin, CHEN JiaTing, ZHOU JieGuang, YIN Li, HU XinRong, LAN YuXin, CHEN Bin, SU LongXing, LIU JiaJun, LIU TianChao, LI XiaoYu, MA Jian. Identification, Validation and Genetic Effect Analysis of Major QTL for Spike Density in Wheat [J]. Scientia Agricultura Sinica, 2026, 59(1): 17-28.