干旱地区绿肥还田条件下减氮对玉米农艺性状、产量及籽粒品质的影响

doi:10.3864/j.issn.0578-1752.2025.13.005

Abstract

Abstract:

【Objective】 In order to seek a reasonable nitrogen application system suitable for high-yield and high-quality production of maize in arid areas, this study focused on the effects of reducing nitrogen application under the condition of returning green manure to the field on maize grain yield and quality, with a view to providing a theoretical basis for the regional development of nitrogen-saving, efficiency-enhancing, high-yield and high-quality agricultural production models. 【Method】 Field experiment were conducted at the Wuwei Oasis Agricultural Experiment Station from 2020 to 2022, and different nitrogen reduction rates were investigated under the condition of green manure returned to the field (Green manure retention with nitrogen reduction 0%, N100, 360 kg N·hm^-2; Green manure retention with nitrogen reduction 10%, N90, 324 kg N·hm^-2; Green manure retention with nitrogen reduction 20%, N80, 288 kg N·hm^-2; Green manure retention with nitrogen reduction 30%, N70, 252 kg N·hm^-2; and Green manure retention with nitrogen reduction 40%, N60, 216 kg N·hm^-2) on maize agronomic traits, yield components and grain quality. 【Result】 Compared with the N100 treatment, the N80 treatment ensured that maize plant height, stem diameters, and dry weight did not decrease, while the N70 treatment reduced them by 8.8%, 11.3%, and 16.4%, respectively, and the N60 treatment reduced them by 10.6%, 12.9%, and 21.3%, respectively. Among the yield components, there was no significant difference in maize bare top length among treatments; ear length, row number per ear, kernel number per row, and ear numbers under N100, N90, and N80 treatments were no significant difference too, but they were all significantly higher than those under N70 and N60 treatments. In addition, N80 treatment had the advantage of ensuring that the maize grain protein content was not reduced and fat content was increased while ensuring that maize yield was not reduced. And this system helped to reduce the amount of nitrogen accumulation in maize stems and leaves, and increased the amount of nitrogen accumulation in maize grain. Mantel test analysis revealed that maize grain yield, protein content, and fat content exhibited significant positive correlations (P<0.05, Mantel’s r>0.25) with nitrogen application rate, grain nitrogen accumulation, plant height, stem diameter, dry weight, ear length, and row number per ear. However, no significant correlations were observed with ear height, bare top length, or kernels number per row. Grey correlation analysis further showed that the ear numbers, plant dry weight and row number per ear were the key factors affecting maize kernel yield. 【Conclusion】 In the context of sustainable agriculture, reducing nitrogen by 20% under the condition of returning green manure to the field (288 kg N·hm^-2) could be used as a reasonable nitrogen management system for developing nitrogen-saving and input-reducing, high-yield and high-quality agriculture in arid areas.

Key words: green manure, nitrogen fertilizer, maize, yield, grain quality, nitrogen accumulation

WANG PengFei, YU AiZhong, WANG Feng, WANG YuLong, LÜ HanQiang, SHANG YongPan, Yin Bo, LIU YaLong, ZHANG DongLing, HUO JianZhe, JIANG KeQiang, PANG XiaoNeng. Effects of Reducing Nitrogen Application on Maize Agronomic Traits, Grain Yield and Quality Under Green Manure Returning to Field System in Arid Areas[J].Scientia Agricultura Sinica, 2025, 58(13): 2552-2563.

Figures/Tables 10

Fig. 1

Table 1

Fig. 2

Table 2

Fig. 3

Fig. 4

Fig. 5

Table 3

Fig. 6

Table 4

References 36

[1]	TILMAN D, BALZER C, HILL J, BEFORT B L. Global food demand and the sustainable intensification of agriculture. Proceedings of the National Academy of Sciences of the United States of America, 2011, 108(50): 20260-20264.
[2]	GODFRAY H C J, BEDDINGTON J R, CRUTE I R, HADDAD L, LAWRENCE D, MUIR J F, PRETTY J, ROBINSON S, THOMAS S M, TOULMIN C. Food security: The challenge of feeding 9 billion people. Science, 2010, 327(5967): 812-818.
[3]	ZHAI L C, WANG Z B, ZHAI Y C, ZHANG L H, ZHENG M J, YAO H P, LV L H, SHEN H P, ZHANG J T, YAO Y R, JIA X L. Partial substitution of chemical fertilizer by organic fertilizer benefits grain yield, water use efficiency, and economic return of summer maize. Soil and Tillage Research, 2022, 217: 105287.
[4]	TAN Y C, XU C, LIU D X, WU W L, LAL R, MENG F Q. Effects of optimized N fertilization on greenhouse gas emission and crop production in the North China Plain. Field Crops Research, 2017, 205: 135-146.
[5]	LI R, CHAI S X, CHAI Y W, LI Y W, LAN X M, MA J T, CHENG H B, CHANG L. Mulching optimizes water consumption characteristics and improves crop water productivity on the semi-arid Loess Plateau of China. Agricultural Water Management, 2021, 254: 106965.
[6]	樊志龙, 柴强, 曹卫东, 于爱忠, 赵财, 谢军红, 殷文, 胡发龙. 绿肥在我国旱地农业生态系统中的服务功能及其应用. 应用生态学报, 2020, 31(4): 1389-1402. doi: 10.13287/j.1001-9332.202004.023
	FAN Z L, CHAI Q, CAO W D, YU A Z, ZHAO C, XIE J H, YIN W, HU F L. Ecosystem service function of green manure and its application in dryland agriculture of China. Chinese Journal of Applied Ecology, 2020, 31(4): 1389-1402. (in Chinese)
[7]	曹卫东, 包兴国, 徐昌旭, 聂军, 高亚军, 耿明建. 中国绿肥科研60年回顾与未来展望. 植物营养与肥料学报, 2017, 23(6): 1450-1461.
	CAO W D, BAO X G, XU C X, NIE J, GAO Y J, GENG M J. Reviews and prospects on science and technology of green manure in China. Journal of Plant Nutrition and Fertilizer, 2017, 23(6): 1450-1461. (in Chinese)
[8]	王鹏飞, 于爱忠, 王玉珑, 苏向向, 李悦, 吕汉强, 柴健, 杨宏伟. 绿肥还田结合减量施氮对玉米干物质积累分配及产量的影响. 中国农业科学, 2023, 56(7): 1283-1294. doi: 10.3864/j.issn.0578-1752.2023.07.007.
	WANG P F, YU A Z, WANG Y L, SU X X, LI Y, LÜ H Q, CHAI J, YANG H W. Effects of returning green manure to field combined with reducing nitrogen application on the dry matter accumulation, distribution and yield of maize. Scientia Agricultura Sinica, 2023, 56(7): 1283-1294. doi: 10.3864/j.issn.0578-1752.2023.07.007. (in Chinese)
[9]	苏向向, 于爱忠, 吕汉强, 王玉珑. 绿洲灌区小麦复种绿肥并翻压还田对翌年玉米产量形成及氮素吸收利用的影响. 植物营养与肥料学报, 2022, 28(7): 1208-1218.
	SU X X, YU A Z, LÜ H Q, WANG Y L. Effects of wheat multiple cropping with green manure on grain yield formation and nitrogen absorption and utilization of maize in oasis irrigation area in Northwest China. Journal of Plant Nutrition and Fertilizers, 2022, 28(7): 1208-1218. (in Chinese)
[10]	潘福霞, 鲁剑巍, 刘威, 耿明建, 李小坤, 曹卫东. 不同种类绿肥翻压对土壤肥力的影响. 植物营养与肥料学报, 2011, 17(6): 1359-1364.
	PAN F X, LU J W, LIU W, GENG M J, LI X K, CAO W D. Effect of different green manure application on soil fertility. Plant Nutrition and Fertilizer Science, 2011, 17(6): 1359-1364. (in Chinese)
[11]	叶协锋, 杨超, 李正, 敬海霞. 绿肥对植烟土壤酶活性及土壤肥力的影响. 植物营养与肥料学报, 2013, 19(2): 445-454.
	YE X F, YANG C, LI Z, JING H X. Effects of green manure in corporation on soil enzyme activities and fertility in tobacco-planting soils. Plant Nutrition and Fertilizer Science, 2013, 19(2): 445-454. (in Chinese)
[12]	张珺穜, 曹卫东, 徐昌旭, 刘佳. 种植利用紫云英对稻田土壤微生物及酶活性的影响. 中国土壤与肥料, 2012(1): 19-25.
	ZHANG J T, CAO W D, XU C X, LIU J. Effects of incorporation of milk vetch(Astragalus sinicus)on microbial populations and enzyme activities of paddy soil in Jiangxi. Soil and Fertilizer Sciences in China, 2012(1): 19-25. (in Chinese)
[13]	陈国军, 闫慧峰, 吴凯, 杨举田, 田雷, 谭效磊, 宗浩, 陈秀斋, 张永春, 孙延国, 刘海伟, 石屹. 不同收获期的籽粒苋绿肥还田对土壤养分的影响. 草业学报, 2016, 25(3): 215-224. doi: 10.11686/cyxb2015415
	CHEN G J, YAN H F, WU K, YANG J T, TIAN L, TAN X L, ZONG H, CHEN X Z, ZHANG Y C, SUN Y G, LIU H W, SHI Y. Green manure returning effect of Amaranthus hypochondriacus harvested at different times on soil fertility. Acta Prataculturae Sinica, 2016, 25(3): 215-224. (in Chinese)
[14]	吴玉红, 王吕, 崔月贞, 郝兴顺, 王保军, 田霄鸿, 李小刚, 秦宇航. 轮作模式及秸秆还田对水稻产量、稻米品质及土壤肥力的影响. 植物营养与肥料学报, 2021, 27(11): 1926-1937.
	WU Y H, WANG L, CUI Y Z, HAO X S, WANG B J, TIAN X H, LI X G, QIN Y H. Rice yield, quality, and soil fertility in response to straw incorporation and rotation pattern. Plant Nutrition and Fertilizer Science, 2021, 27(11): 1926-1937. (in Chinese)
[15]	佀国涵, 赵书军, 王瑞, 徐大兵, 秦兴成, 谭军, 向必坤, 袁家富. 连年翻压绿肥对植烟土壤物理及生物性状的影响. 植物营养与肥料学报, 2014, 20(4): 905-912.
	SI G H, ZHAO S J, WANG R, XU D B, QIN X C, TAN J, XIANG B K, YUAN J F. Effects of consecutive overturning of green manure on soil physical and biological characteristics in tobacco-planting fields. Journal of Plant Nutrition and Fertilizer, 2014, 20(4): 905-912. (in Chinese)
[16]	杨恩琼, 黄建国, 何腾兵, 袁玲. 氮肥用量对普通玉米产量和营养品质的影响. 植物营养与肥料学报, 2009, 15(3): 509-513.
	YANG E Q, HUANG J G, HE T B, YUAN L. Effect of nitrogen fertilization on yield and nutritional qualities of food maize. Plant Nutrition and Fertilizer Science, 2009, 15(3): 509-513. (in Chinese)
[17]	张学林, 王群, 赵亚丽, 杨青华, 李潮海. 施氮水平和收获时期对夏玉米产量和籽粒品质的影响. 应用生态学报, 2010, 21(10): 2565-2572.
	ZHANG X L, WANG Q, ZHAO Y L, YANG Q H, LI C H. Effects of nitrogen fertilization rate and harvest time on summer maize grain yield and its quality. Chinese Journal of Applied Ecology, 2010, 21(10): 2565-2572. (in Chinese)
[18]	ZHANG L, LIANG Z Y, HE X M, MENG Q F, HU Y C, SCHMIDHALTER U, ZHANG W, ZOU C Q, CHEN X P. Improving grain yield and protein concentration of maize (Zea mays L.) simultaneously by appropriate hybrid selection and nitrogen management. Field Crops Research, 2020, 249: 107754.
[19]	白伟, 张立祯, 逄焕成, 孙占祥, 牛世伟, 蔡倩, 安景文. 秸秆还田配施氮肥对东北春玉米光合性能和产量的影响. 作物学报, 2017, 43(12): 1845-1855. doi: 10.3724/SP.J.1006.2017.01845
	BAI W, ZHANG L Z, PANG H C, SUN Z X, NIU S W, CAI Q, AN J W. Effects of straw returning combined with nitrogen fertilizer on photosynthetic performance and yield of spring maize in Northeast China. Acta Agronomica Sinica, 2017, 43(12): 1845-1855. (in Chinese) doi: 10.3724/SP.J.1006.2017.01845
[20]	霍竹, 王璞, 付晋峰. 秸秆还田与氮肥施用对夏玉米物质生产的影响研究. 中国生态农业学报, 2006, 14(2): 95-98.
	HUO Z, WANG P, FU J F. Effects of crop residues incorporation and N-fertilizer utilization on the matter production of summer maize. Chinese Journal of Eco-Agriculture, 2006, 14(2): 95-98. (in Chinese)
[21]	刘凡, 刘斌祥, 刘佳媛, 杜霞, 孔凡磊, 袁继超. 水氮互作对川中丘陵区玉米水肥利用效率和产量形成的影响. 干旱地区农业研究, 2021, 39(6): 200-206.
	LIU F, LIU B X, LIU J Y, DU X, KONG F L, YUAN J C. Effect of water and nitrogen interaction on maize utilization efficiency of fertilizer, water and yield formation in the Middle Hilly Area of Sichuan Province. Agricultural Research in the Arid Areas, 2021, 39(6): 200-206. (in Chinese)
[22]	王宁, 闫洪奎, 王君, 李必富, 张永坤, 曹敏建. 不同量秸秆还田对玉米生长发育及产量影响的研究. 玉米科学, 2007, 15(5): 100-103.
	WANG N, YAN H K, WANG J, LI B F, ZHANG Y K, CAO M J. Research on effects of different amount straws return to field on growth development and yield of maize. Maize Science, 2007, 15(5): 100-103. (in Chinese)
[23]	TALGRE L, LAURINGSON E, ROOSTALU H, ASTOVER A. The effects of green manures on yields and yield quality of spring wheat. Agronomy Research, 2009, 7(1): 125-132.
[24]	WANG J, QIU Y Y, ZHANG X Y, ZHOU Z, HAN X, ZHOU Y, QIN L, LIU K, LI S Y, WANG W L, CHEN Y, YANG J C, LIU L J. Increasing basal nitrogen fertilizer rate improves grain yield, quality and 2-acetyl-1-pyrroline in rice under wheat straw returning. Frontiers in Plant Science, 2023, 13: 1099751.
[25]	LIANG H, LI S, ZHANG L, XU C X, LV Y H, GAO S J, CAO W D. Long-term green manuring enhances crop N uptake and reduces N losses in rice production system. Soil and Tillage Research, 2022, 220: 105369.
[26]	SHARMA A R, BEHERA U K. Nitrogen contribution through Sesbania green manure and dual-purpose legumes in maize-wheat cropping system: agronomic and economic considerations. Plant and Soil, 2009, 325(1): 289-304.
[27]	SALAZAR O, BALBOA L, PERALTA K, ROSSI M, CASANOVA M, TAPIA Y, SINGH R, QUEMADA M. Effect of cover crops on leaching of dissolved organic nitrogen and carbon in a maize-cover crop rotation in Mediterranean Central Chile. Agricultural Water Management, 2019, 212: 399-406.
[28]	ELFSTRAND S, HEDLUND K, MÅRTENSSON A. Soil enzyme activities, microbial community composition and function after 47 years of continuous green manuring. Applied Soil Ecology, 2007, 35(3): 610-621.
[29]	COUËDEL A, ALLETTO L, TRIBOUILLOIS H, JUSTES É. Cover crop crucifer-legume mixtures provide effective nitrate catch crop and nitrogen green manure ecosystem services. Agriculture, Ecosystems & Environment, 2018, 254: 50-59.
[30]	FOULKES M J, SCOTT R K, SYLVESTER-BRADLEY R. The ability of wheat cultivars to withstand drought in UK conditions: Formation of grain yield. Journal of Agricultural Sciences, 2002, 138(2): 153-169.
[31]	YANG M, GENG M Y, SHEN P F, CHEN X H, LI Y J, WEN X X. Effect of post-silking drought stress on the expression profiles of genes involved in carbon and nitrogen metabolism during leaf senescence in maize (Zea mays L.). Plant Physiology and Biochemistry, 2019, 135: 304-309.
[32]	YUAN L Y, TANG L, ZHU S D, HOU J F, CHEN G H, LIU F, LIU S, WANG C G. Influence of heat stress on leaf morphology and nitrogen-carbohydrate metabolisms in two Wucai (Brassica campestris L.) genotypes. Acta Societatis Botanicorum Poloniae, 2017, 86(2): 3554.
[33]	ZÖRB C, LUDEWIG U, HAWKESFORD M J. Perspective on wheat yield and quality with reduced nitrogen supply. Trends in Plant Science, 2018, 23(11): 1029-1037. doi: S1360-1385(18)30192-4 pmid: 30249481
[34]	WANG P F, YU A Z, WANG F, WANG Y L, LYU H Q, SHANG Y P, YANG X H, LIU Y L, YIN B, ZHANG D L, CHAI Q. Nitrogen reduction by 20% with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas. Field Crops Research, 2024, 315: 109488.
[35]	姜涛. 氮肥运筹对夏玉米产量、品质及植株养分含量的影响. 植物营养与肥料学报, 2013, 19(3): 559-565.
	JIANG T. Effects of nitrogen application regime on yield, quality and plant nutrient contents of summer maize. Journal of Plant Nutrition and Fertilizer, 2013, 19(3): 559-565. (in Chinese)
[36]	LYU H Q, LI Y, YU A Z, HU F L, CHAI Q, WANG F, WANG Y L, WANG P F, SHANG Y P, YANG X H. How do green manure management practices affect ammonia emissions from maize fields? Agriculture, Ecosystems & Environment, 2024, 367: 108971.

Related Articles 15

[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 YaFei, YAN Peng, XUE JinTao, DONG XueRui, MENG FanQi, GUO LiNa, LUO Yi, ZHANG Juan, DONG ZhiQiang, LU Lin. Effects of Ethephon-Glycine Betaine-Salicylic Acid Mixture on Root System Architecture, Physiological Function and Yield of Maize Under Heat Stress [J]. Scientia Agricultura Sinica, 2026, 59(7): 1439-1455.
[3]	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.
[4]	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.
[5]	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.
[6]	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.
[7]	LI YongJuan, ZHANG YueTong, WANG YiBo, ZHAO ChangJiang, SONG Jie, CHEN XueLi, YAO Qin. Effects of Biochar Application on the Abundance and Community Composition of Nitrogen-Fixing Microbial nifH Gene in Soybean Rotation and Continuous Cropping Systems [J]. Scientia Agricultura Sinica, 2026, 59(6): 1272-1285.
[8]	LI SiYuan, LI HongPing, CHANG HongQing, ZHANG SenYan, LI SiJia, CUI XinFei, QIAO Po, ZENG Bo, LIU GuiZhen, LIU TianXue, TANG JiHua, LI ChaoHai. Effects of Density Increase on Dynamic Change of Yield and Agronomic Traits of Maize Cultivars with Different Plant Heights [J]. Scientia Agricultura Sinica, 2026, 59(5): 967-984.
[9]	DONG JinLong, ZHAO Ying, YU HaiBing, LÜ JianYe, QIN JiaQi, LIANG Chen, MING Bo, LI ShaoKun. Multi-Model Elucidating of Nutritional Quality Contributions to Maize Kernel Test Weight and Regional Heterogeneity [J]. Scientia Agricultura Sinica, 2026, 59(5): 985-995.
[10]	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.
[11]	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.
[12]	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.
[13]	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.
[14]	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.
[15]	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.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

灌溉次数 Irrigation frequency	玉米Maize		小麦Wheat		箭筈豌豆Common vetch
灌溉次数 Irrigation frequency	灌溉时期 Irrigation stage	灌溉定额 Irrigation quota (mm)	灌溉时期 Irrigation stage	灌溉定额 Irrigation quota (mm)	灌溉时期 Irrigation stage	灌溉定额 Irrigation quota (mm)
1	拔节期Jointing	90	苗期Seedling	75	苗期Seedling	70
2	大喇叭口期Big trumpet	75	孕穗期Booting	90	现蕾期Budding	90
3	抽雄期Tasseling	90	灌浆期Filling	75	/	/
4	吐丝期Silking	75	/	/	/	/
5	灌浆期Filling	75	/	/	/	/

年份 Year	处理 Treatment	叶片Leaf		茎Stem		籽粒Grain		总积累量 Total accumulation (kg·hm^-2)
年份 Year	处理 Treatment	氮素积累量 N accumulation (kg·hm^-2)	分配比例 Distribution ratio (%)	氮素积累量 N accumulation (kg·hm^-2)	分配比例 Distribution ratio (%)	氮素积累量 N accumulation (kg·hm^-2)	分配比例 Distribution ratio (%)	总积累量 Total accumulation (kg·hm^-2)
2020	N100	77.8c	17.2c	49.5b	10.9c	325.0a	71.8a	452.4a
	N90	79.2c	17.6c	49.1b	10.9c	322.2a	71.5a	450.5a
	N80	78.3c	17.3c	47.8b	10.6c	326.0a	72.1a	452.0a
	N70	88.0b	21.0b	69.8a	16.6b	261.7b	62.4b	419.6b
	N60	98.2a	24.8a	72.6a	18.4a	224.7c	56.8c	395.5c
2021	N100	59.9c	14.0c	48.7b	11.4b	319.4a	74.6b	428.1a
	N90	60.3c	13.9c	47.5b	11.0bc	325.2a	75.1b	433.0a
	N80	57.0d	13.5c	40.0c	9.5c	324.8a	77.0a	421.8a
	N70	65.7b	17.2b	59.2a	15.5a	257.1b	67.3c	382.0b
	N60	78.5a	22.5a	56.7a	16.2a	214.2c	61.3d	349.3c
2022	N100	69.3c	15.7c	39.8b	9.0b	331.2a	75.2a	440.3a
	N90	62.4c	14.5c	42.4b	9.8b	326.9a	75.7a	431.7a
	N80	65.4c	15.2c	42.6b	9.9b	322.8a	74.9a	430.8a
	N70	70.3b	18.0b	55.4a	14.2a	265.3b	67.9b	391.0b
	N60	80.2a	21.5a	57.2a	15.3a	235.4c	63.1c	372.8c

指标 Index	关联度分析 Analysis of association degree	株高 PH	茎粗 SD	穗位高 EH	干重 DM	秃尖长 BT	穗长 EL	穗行数 RNE	行粒数 KNR	穗数 EN
产量 Yield	关联度 Association degree	0.370	0.877	0.832	0.901	0.713	0.889	0.899	0.880	0.948
产量 Yield	排序 Ranking	9	6	7	2	8	4	3	5	1

Effects of Reducing Nitrogen Application on Maize Agronomic Traits, Grain Yield and Quality Under Green Manure Returning to Field System in Arid Areas

RichHTML

PDF