Effect of Nitrogen on Nutrient Distribution in Soil and Nutrient Accumulation and Utilization in Summer Maize

doi:10.7668/hbnxb.20193751

Abstract

Abstract:

To determine the effects of different nitrogen levels on soil nutrient characteristics and on the differences in nitrogen,phosphorus,and potassium uptake and utilization of summer maize,a field experiment had been conducted at four nitrogen rates(N0:No nitrogen application;N1:90 kg/ha;N2:195 kg/ha;N3:300 kg/ha)following nitrogen application of 240 kg/ha on preceding winter wheat.The experimental material Cangyu 76 was used to research the effects of nitrogen application rate on different characters of growth indicators and their correlation.The results showed that the dry matter weight of stem,leaf and corn crobs increased with the increase of nitrogen application ranged in 0-195 kg/ha.Soil nitrate N content in 0-20 cm and 20-40 cm soil layers increased significantly with increasing N application rate;but the content of available P and available K in the same soil layer had no significant change.There were significant differences in nitrogen concentration and nitrogen accumulation in stems,leaves,corn cobs and grains under different nitrogen application rates,in which nitrogen accumulation in seeds accounted for 59.4%-63.5% of total nitrogen accumulation in above-ground parts of plants.The P and K contents in stems,leaves,corn crobs and grains had little change under nitrogen application rate,but was positively regulated by dry matter weight.When N input exceeded 195 kg/ha,nitrogen agronomic efficiency was decreased significantly.When the nitrogen rate was higher than 189 kg/ha,grain yield would be not increased,which was evaluated by Linear plus platform model that simulate the relationship between yield and nitrogen application rate.Therefore,combined with experimental and model simulation results,the optimal nitrogen input was controlled within the range of 189-195 kg/ha,which could realize both economic benefits and agroecological benefits.

Key words: Summer maize, Nitrogen, Soil nutrient characteristics, Nutrients, Absorption and utilization

GUO Li, WANG Guangen, LI Yihong, SHI Jianshuo, WANG Liying, LI Dongxiao, JIANG Longgang. Effect of Nitrogen on Nutrient Distribution in Soil and Nutrient Accumulation and Utilization in Summer Maize[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(3): 121-129. doi: 10.7668/hbnxb.20193751.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.20193751

http://www.hbnxb.net/EN/Y2023/V38/I3/121

Figures/Tables 8

References 29

[1]	Quan Z, Li S L, Zhang X, Zhu F F, Li P P, Sheng R, Chen X, Zhang L M, He J Z, Wei W X, Fang Y T. Fertilizer nitrogen use efficiency and fates in maize cropping systems across China:Field ¹⁵N tracer studies[J]. Soil and Tillage Research, 2020, 197:104498.doi:10.1016/j.still.2019.104498. doi: 10.1016/j.still.2019.104498 URL
[2]	佟丙辛, 张华芳, 高肖贤, 侯勇, 马文奇. 华北平原典型区域农牧系统氮素流动及其环境效应--以河北省为例[J]. 中国农业科学, 2018, 51(3):442-455.doi:10.3864/j.issn.0578-1752.2018.03.005. doi: 10.3864/j.issn.0578-1752.2018.03.005
	Tong B X, Zhang H F, Gao X X, Hou Y, Ma W Q. Nitrogen flow and environmental effects of crop-livestock system in typical area of North China plain-a case study in Hebei Province[J]. Scientia Agricultura Sinica, 2018, 51(3):442-455. doi: 10.3864/j.issn.0578-1752.2018.03.005
[3]	Lu J S, Hu T T, Zhang B C, Wang L, Yang S H, Fan J L, Yan S C, Zhang F C. Nitrogen fertilizer management effects on soil nitrate leaching,grain yield and economic benefit of summer maize in Northwest China[J]. Agricultural Water Management, 2021, 247:106739.doi:10.1016/j.agwat.2021.106739. doi: 10.1016/j.agwat.2021.106739 URL
[4]	向晓玲, 陈松鹤, 高仁才, 吴东明, 陈艳琦, 杨洪坤, 樊高琼. 麦-玉轮作玉米秸秆还田与施氮对后茬玉米产量和养分吸收的影响[J]. 华北农学报, 2021, 36(1):169-176.doi:10.7668/hbnxb.20191570. doi: 10.7668/hbnxb.20191570
	Xiang X L, Chen S H, Gao R C, Wu D M, Chen Y Q, Yang H K, Fan G Q. Effects of maize straw returning and nitrogen application on yield and nutrient uptake of later maize under wheat-maize rotation system[J]. Acta Agriculturae Boreali-Sinica, 2021, 36(1):169-176. doi: 10.7668/hbnxb.20191570
[5]	Liu B Y, Lin B J, Li X X, Latif Virk A, N'dri Yves B, Zhao X, Dang Y P, Zhang H L. Appropriate farming practices of summer maize in the North China Plain:Reducing nitrogen use to promote sustainable agricultural development[J]. Resources, Conservation and Recycling, 2021, 175:105889.doi:10.1016/j.resconrec.2021.105889. doi: 10.1016/j.resconrec.2021.105889 URL
[6]	Li Z T, Wen X M, Hu C S, Li X X, Li S S, Zhang X S, Hu B Q. Regional simulation of nitrate leaching potential from winter wheat-summer maize rotation croplands on the North China Plain using the NLEAP-GIS model[J]. Agriculture, Ecosystems & Environment, 2020, 294:106861.doi:10.1016/j.agee.2020.106861. doi: 10.1016/j.agee.2020.106861
[7]	Cui Z L, Chen X P, Zhang F S. Current nitrogen management status and measures to improve the intensive wheat-maize system in China[J]. AMBIO, 2010, 39(5):376-384.doi:10.1007/s13280-010-0076-6. doi: 10.1007/s13280-010-0076-6 URL
[8]	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[J]. Field Crops Research, 2017, 205:135-146.doi:10.1016/j.fcr.2017.01.003. doi: 10.1016/j.fcr.2017.01.003 URL
[9]	Gu B J, Ju X T, Chang J, Ge Y, Vitousek P M. Integrated reactive nitrogen budgets and future trends in China[J]. Proceedings of the National Academy of Sciences of the United States of America, 2015, 112(28):8792-8797.doi:10.1073/pnas.1510211112. doi: 10.1073/pnas.1510211112 pmid: 26124118
[10]	Liu L, Yao S, Zhang H T, Muhammed A, Xu J X, Li R N, Zhang D J, Zhang S L, Yang X Y. Soil nitrate nitrogen buffer capacity and environmentally safe nitrogen rate for winter wheat-summer maize cropping in Northern China[J]. Agricultural Water Management, 2019, 213:445-453.doi:10.1016/j.agwat.2018.11.001. doi: 10.1016/j.agwat.2018.11.001 URL
[11]	Liang S, Li Y F, Zhang X B, Sun Z G, Sun N, Duan Y H, Xu M G, Wu L H. Response of crop yield and nitrogen use efficiency for wheat-maize cropping system to future climate change in Northern China[J]. Agricultural and Forest Meteorology, 2018, 262:310-321.doi:10.1016/j.agrformet.2018.07.019. doi: 10.1016/j.agrformet.2018.07.019 URL
[12]	Cui Z L, Zhang F S, Chen X P, Miao Y X, Li J L, Shi L W, Xu J F, Ye Y L, Liu C S, Yang Z P, Zhang Q, Huang S M, Bao D J. On-farm evaluation of an in-season nitrogen management strategy based on soil N_min test[J]. Field Crops Research, 2008, 105(1/2):48-55.doi:10.1016/j.fcr.2007.07.008. doi: 10.1016/j.fcr.2007.07.008 URL
[13]	Vitousek P M, Naylor R, Crews T, David M B, Drinkwater L E, Holland E, Johnes P J, Katzenberger J, Martinelli L A, Matson P A, Nziguheba G, Ojima D, Palm C A, Robertson G P, Sanchez P A, Townsend A R, Zhang F S. Nutrient imbalances in agricultural development[J]. Science, 2009, 324(5934):1519-1520.doi:10.1126/science.1170261. doi: 10.1126/science.1170261 pmid: 19541981
[14]	Gao F, Li B, Ren B Z, Zhao B, Liu P, Zhang J W. Achieve simultaneous increase in straw resources efficiency and nitrogen efficiency under crop yield stabilization-A case study of NCP in China for up to 8 years[J]. Field Crops Research, 2022, 278:108431.doi:10.1016/j.fcr.2022.108431. doi: 10.1016/j.fcr.2022.108431 URL
[15]	Xu J, Cai H J, Wang X Y, Ma C G, Lu Y J, Ding Y B, Wang X W, Chen H, Wang Y F, Saddique Q. Exploring optimal irrigation and nitrogen fertilization in a winter wheat-summer maize rotation system for improving crop yield and reducing water and nitrogen leaching[J]. Agricultural Water Management, 2020, 228:105904.doi:10.1016/j.agwat.2019.105904. doi: 10.1016/j.agwat.2019.105904 URL
[16]	Liu C R, Ren D Y, Liu H R, Zhang Y S, Wang L G, Li Z H, Zhang M C. Optimizing nitrogen management diminished reactive nitrogen loss and acquired optimal net ecosystem economic benefit in a wheat-maize rotation system[J]. Journal of Cleaner Production, 2022, 331:129964.doi:10.1016/j.jclepro.2021.129964. doi: 10.1016/j.jclepro.2021.129964 URL
[17]	翁玲云, 杨晓卡, 吕敏娟, 辛思颖, 陈帅, 马文奇, 魏静. 长期不同施氮量下冬小麦-夏玉米复种系统土壤硝态氮累积和淋洗特征[J]. 应用生态学报, 2018, 29(8):2551-2558.doi:10.13287/j.1001-9332.201808.026. doi: 10.13287/j.1001-9332.201808.026
	Weng L Y, Yang X Q, Lü M J, Xin S Y, Chen S, Ma W Q, Wei J. Characteristics of soil nitrate accumulation and leaching under different long-term nitrogen application rates in winter wheat and summer maize rotation system[J]. Chinese Journal of Applied Ecology, 2018, 29(8):2551-2558.
[18]	侯云鹏, 孔丽丽, 尹彩侠, 李前, 王立春, 徐新朋. 覆膜滴灌下氮肥与种植密度互作对东北春玉米产量、群体养分吸收与转运的调控效应[J]. 植物营养与肥料学报, 2021, 27(1):54-65.doi:10.11674/zwyf.20233. doi: 10.11674/zwyf.20233
	Hou Y P, Kong L L, Yin C X, Li Q, Wang L C, Xu X P. Interaction between nitrogen fertilizer and plant density on nutrient absorption,translocation and yield of spring maize under drip irrigation in Northeast China[J]. Journal of Plant Nutrition and Fertilizers, 2021, 27(1):54-65.
[19]	张忠学, 刘明, 齐智娟. 喷灌条件下水氮用量对玉米氮素吸收转运的影响[J]. 农业机械学报, 2019, 50(8):299-308.doi:10.6041/j.issn.1000-1298.2019.08.033. doi: 10.6041/j.issn.1000-1298.2019.08.033
	Zhang Z X, Liu M, Qi Z J. Effect of water nitrogen dosage on nitrogen absorption and transformation of maize under sprinkler irrigation condition[J]. Transactions of the Chinese Society for Agricultural Machinery, 2019, 50(8):299-308.
[20]	Chen Y L, Xiao C X, Wu D L, Xia T T, Chen Q W, Chen F J, Yuan L X, Mi G H. Effects of nitrogen application rate on grain yield and grain nitrogen concentration in two maize hybrids with contrasting nitrogen remobilization efficiency[J]. European Journal of Agronomy, 2015, 62:79-89.doi:10.1016/j.eja.2014.09.008. doi: 10.1016/j.eja.2014.09.008 URL
[21]	李强, 孔凡磊, 袁继超. 氮肥运筹对不同玉米品种氮素吸收、利用及田间氮平衡的影响[J]. 华北农学报, 2022, 37(4): 169-181. doi: 10.7668/hbnxb.20192665. doi: 10.7668/hbnxb.20192665
	Li Q, Kong F L, Yuan J C. Cultivar differences in nitrogen uptake,utilization and field nitrogen balance of maize hybrids in response to nitrogen management[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(4): 169-181. doi: 10.7668/hbnxb.20192665
[22]	高宏伟, 杨武德, 冯美臣, 王超, Muhammad Saleem Kubar, 岳彧. 氮运筹对冬小麦氮素积累量和氮素吸收利用效率的影响[J]. 山西农业科学, 2020, 48(3):392-395. doi: 10.3969/j.issn.1002-2481.2020.03.25. doi: 10.3969/j.issn.1002-2481.2020.03.25
	Gao H W, Yang W D, Feng M C, Wang C, Kubar M S, Yue Y. Effects of nitrogen management on nitrogen accumulation and nitrogen uptake and utilization efficiency in winter wheat[J]. Journal of Shanxi Agricultural Sciences, 2020, 48(3):392-395.
[23]	Yin M H, Li Y N, Xu Y B. Comparative effects of nitrogen application on growth and nitrogen use in a winter wheat/summer maize rotation system[J]. Journal of Integrative Agriculture, 2017, 16(9):2062-2072.doi:10.1016/S2095-3119(16)61487-9. doi: 10.1016/S2095-3119(16)61487-9 URL
[24]	李强, 马晓君, 程秋博, 豆攀, 余东海, 罗延宏, 孔凡磊, 袁继超. 氮肥对不同耐低氮性玉米品种氮素吸收利用及氮素平衡的影响[J]. 水土保持学报, 2016, 30(3):171-176,183.doi:10.13870/j.cnki.stbcxb.2016.03.030. doi: 10.13870/j.cnki.stbcxb.2016.03.030
	Li Q, Ma X J, Cheng Q B, Dou P, Yu D H, Luo Y H, Kong F L, Yuan J C. Effects of nitrogen application on nitrogen utilization and nitrogen balance in fields of maize cultivars with different low nitrogen tolerance[J]. Journal of Soil and Water Conservation, 2016, 30(3):171-176,183.
[25]	Ju X T, Xing G X, Chen X P, Zhang S L, Zhang L J, Liu X J, Cui Z L, Yin B, Christie P, Zhu Z L, Zhang F S. Reducing environmental risk by improving N management in intensive Chinese agricultural systems[J]. Proceedings of the National Academy of Sciences of the United States of America, 2009, 106(9):3041-3046.doi:10.1073/pnas.0813417106. doi: 10.1073/pnas.0813417106
[26]	吕丽华, 董志强, 张经廷, 张丽华, 梁双波, 贾秀领, 姚海坡. 水氮对冬小麦-夏玉米产量及氮利用效应研究[J]. 中国农业科学, 2014, 47(19):3839-3849.doi:10.3864/j.issn.0578-1752.2014.19.012. doi: 10.3864/j.issn.0578-1752.2014.19.012
	Lü L H, Dong Z Q, Zhang J T, Zhang L H, Liang S B, Jia X L, Yao H P. Effect of water and nitrogen on yield and nitrogen utilization of winter wheat and summer maize[J]. Scientia Agricultura Sinica, 2014, 47(19):3839-3849. doi: 10.3864/j.issn.0578-1752.2014.19.012
[27]	郭丽, 史建硕, 王丽英, 李若楠, 任燕利, 张彦才. 滴灌水肥一体化条件下施氮量对夏玉米氮素吸收利用及土壤硝态氮含量的影响[J]. 中国生态农业学报, 2018, 26(5):668-676.doi:10.13930/j.cnki.cjea.170416. doi: 10.13930/j.cnki.cjea.170416
	Guo L, Shi J S, Wang L Y, Li R N, Ren Y L, Zhang Y C. Effects of nitrogen application rate on nitrogen absorption and utilization in summer maize and soil $\text{NO}_{3}^{-}$-N content under drip fertigation[J]. Chinese Journal of Eco-Agriculture,2018,26(5):668-676.
[28]	徐明杰, 张琳, 汪新颖, 彭亚静, 张丽娟, 巨晓棠. 不同管理方式对夏玉米氮素吸收、分配及去向的影响[J]. 植物营养与肥料学报, 2015, 21(1):36-45.doi:10.11674/zwyf.2015.0104. doi: 10.11674/zwyf.2015.0104
	Xu M J, Zhang L, Wang X Y, Peng Y J, Zhang L J, Ju X T. Effects of different management patterns on uptake,distribution and fate of nitrogen in summer maize[J]. Journal of Plant Nutrition and Fertilizers, 2015, 21(1):36-45.
[29]	Zheng J, Fan J L, Zhang F C, Guo J J, Yan S C, Zhuang Q L, Cui N B, Guo L. Interactive effects of mulching practice and nitrogen rate on grain yield,water productivity,fertilizer use efficiency and greenhouse gas emissions of rainfed summer maize in Northwest China[J]. Agricultural Water Management, 2021, 248:106778.doi:10.1016/j.agwat.2021.106778. doi: 10.1016/j.agwat.2021.106778 URL

年份 Years	处理 Treatment	茎秆干质量 Stem dry weight	叶片干质量 Leaves dry weight	穗轴干质量 Corn cobs dry weight
2019	N0	2 478.4±234.9b	4 141.1±325.3c	1 037.0±116.5b
	N1	2 784.3±262.1b	4 280.4±341.9bc	1 204.5±113.2a
	N2	3 243.3±214.0a	5 112.6±260.5a	1 187.5±131.9a
	N3	3 366.0±63.1a	4 898.7±427.8ab	1 241.5±130.2a
2020	N0	3 105.1±186.5b	4 398.5±240.4b	1 204.8±56.8c
	N1	3 346.4±120.4ab	4 539.5±354.3ab	1 255.5±54.8bc
	N2	3 474.6±92.8a	5 025.8±358.0a	1 347.9±62.9ab
	N3	3 569.6±196.7a	5 077.3±271.7a	1 362.9±49.5a

年份 Years	处理 Treatment	茎秆干质量 Stem dry weight	叶片干质量 Leaves dry weight	穗轴干质量 Corn cobs dry weight
2019	N0	2 478.4±234.9b	4 141.1±325.3c	1 037.0±116.5b
	N1	2 784.3±262.1b	4 280.4±341.9bc	1 204.5±113.2a
	N2	3 243.3±214.0a	5 112.6±260.5a	1 187.5±131.9a
	N3	3 366.0±63.1a	4 898.7±427.8ab	1 241.5±130.2a
2020	N0	3 105.1±186.5b	4 398.5±240.4b	1 204.8±56.8c
	N1	3 346.4±120.4ab	4 539.5±354.3ab	1 255.5±54.8bc
	N2	3 474.6±92.8a	5 025.8±358.0a	1 347.9±62.9ab
	N3	3 569.6±196.7a	5 077.3±271.7a	1 362.9±49.5a

指标 Index	2019年各指标值The index value in 2019				2020年各指标值The index value in 2020
指标 Index	N0	N1	N2	N3	N0	N1	N2	N3
茎氮含量/(g/kg)Stem N content	4.27±0.34b	4.59±0.40b	6.29±0.25a	6.59±0.75a	5.40±0.38b	6.16±0.33ab	7.01±0.83a	7.06±0.28a
叶氮含量/(g/kg)Leaves N content	7.51±0.39b	8.03±0.35b	8.74±0.12a	8.70±0.28a	10.72±0.98a	10.72±0.58a	11.42±0.35a	11.76±0.30a
穗轴氮含量/(g/kg)Corn cobs N content	4.15±0.44a	4.39±0.43a	4.30±0.44a	4.07±0.15a	3.63±0.38a	3.76±0.23a	3.77±0.25a	3.77±0.30a
籽粒氮含量/(g/kg)Grain N content	11.37±0.61b	11.44±0.56b	11.98±0.62ab	12.61±0.58a	13.01±0.44a	13.18±0.92a	13.76±0.79a	13.61±0.50a
茎氮累积量/(kg/hm²)	10.53±0.26b	12.75±1.38b	20.38±1.36a	22.21±2.73a	16.80±2.22c	20.63±1.65bc	24.42±3.51ab	25.22±1.87a
Stem N accumulation amount
叶氮累积量/(kg/hm²)	31.03±0.92b	34.33±2.60b	44.69±2.86a	42.68±5.09a	47.00±2.18b	48.69±5.12b	57.38±4.07a	59.76±4.53a
Leaves N accumulation amount
轴氮累积量/(kg/hm²)	4.27±0.18b	5.26±0.43a	5.08±0.36a	5.04±0.34a	4.25±0.18b	4.72±0.36ab	5.07±0.27a	5.13±0.35a
Corn cobs N accumulation amount
籽粒氮累积量/ (kg/hm²)	89.39±6.31b	97.77±6.44 b	111.88±7.71a	116.71±4.31a	105.89±7.59b	113.45±11.21ab	125.82±3.27a	123.47±3.69a
Grain N accumulation amount
氮总累积量/(kg/hm²)	135.23±5.10c	150.11±6.65b	182.03±10.55a	186.64±4.98a	173.95±5.38b	187.49±11.03 b	212.69±5.72a	213.57±8.95a
Total N accumulation amount

指标 Index	2019年各指标值The index value in 2019				2020年各指标值The index value in 2020
指标 Index	N0	N1	N2	N3	N0	N1	N2	N3
茎氮含量/(g/kg)Stem N content	4.27±0.34b	4.59±0.40b	6.29±0.25a	6.59±0.75a	5.40±0.38b	6.16±0.33ab	7.01±0.83a	7.06±0.28a
叶氮含量/(g/kg)Leaves N content	7.51±0.39b	8.03±0.35b	8.74±0.12a	8.70±0.28a	10.72±0.98a	10.72±0.58a	11.42±0.35a	11.76±0.30a
穗轴氮含量/(g/kg)Corn cobs N content	4.15±0.44a	4.39±0.43a	4.30±0.44a	4.07±0.15a	3.63±0.38a	3.76±0.23a	3.77±0.25a	3.77±0.30a
籽粒氮含量/(g/kg)Grain N content	11.37±0.61b	11.44±0.56b	11.98±0.62ab	12.61±0.58a	13.01±0.44a	13.18±0.92a	13.76±0.79a	13.61±0.50a
茎氮累积量/(kg/hm²)	10.53±0.26b	12.75±1.38b	20.38±1.36a	22.21±2.73a	16.80±2.22c	20.63±1.65bc	24.42±3.51ab	25.22±1.87a
Stem N accumulation amount
叶氮累积量/(kg/hm²)	31.03±0.92b	34.33±2.60b	44.69±2.86a	42.68±5.09a	47.00±2.18b	48.69±5.12b	57.38±4.07a	59.76±4.53a
Leaves N accumulation amount
轴氮累积量/(kg/hm²)	4.27±0.18b	5.26±0.43a	5.08±0.36a	5.04±0.34a	4.25±0.18b	4.72±0.36ab	5.07±0.27a	5.13±0.35a
Corn cobs N accumulation amount
籽粒氮累积量/ (kg/hm²)	89.39±6.31b	97.77±6.44 b	111.88±7.71a	116.71±4.31a	105.89±7.59b	113.45±11.21ab	125.82±3.27a	123.47±3.69a
Grain N accumulation amount
氮总累积量/(kg/hm²)	135.23±5.10c	150.11±6.65b	182.03±10.55a	186.64±4.98a	173.95±5.38b	187.49±11.03 b	212.69±5.72a	213.57±8.95a
Total N accumulation amount

指标 Index	2019年各指标值The index value in 2019				2020年各指标值The index value in 2020
指标 Index	N0	N1	N2	N3	N0	N1	N2	N3
茎磷含量/(g/kg)Stem P content	0.27±0.03a	0.28±0.04a	0.27±0.03a	0.26±0.03a	0.37±0.08a	0.34±0.02a	0.38±0.06a	0.40±0.02a
叶磷含量/(g/kg)Leaves P content	0.79±0.08a	0.74±0.06a	0.75±0.03a	0.71±0.04a	0.94±0.22a	1.01±0.01a	1.16±0.11a	1.12±0.04a
穗轴磷含量/(g/kg)Corn cobs P content	0.30±0.02a	0.31±0.05a	0.32±0.05a	0.29±0.01a	0.36±0.05a	0.36±0.04a	0.35±0.02a	0.37±0.02a
籽粒磷含量/(g/kg)Grain P content	2.10±0.08a	2.06±0.19a	2.17±0.04a	2.05±0.14a	2.24±0.12a	2.37±0.15a	2.45±0.11a	2.41±0.18a
茎磷累积量/(kg/hm²)	0.66±0.02b	0.78±0.18ab	0.89±0.06a	0.89±0.10a	1.15±0.19a	1.15±0.07a	1.31±0.19a	1.42±0.11a
Stem P accumulation amount
叶磷累积量/(kg/hm²)	3.29±0.46a	3.17±0.22a	3.86±0.37a	3.50±0.49a	4.15±1.19b	4.60±0.38ab	5.84±0.52a	5.69±0.47a
Leaves P accumulation amount
穗轴磷累积量/(kg/hm²)	0.31±0.03a	0.37±0.07a	0.38±0.03a	0.36±0.05a	0.43±0.04b	0.45±0.02 b	0.47±0.01ab	0.51±0.00a
Corn cobs P accumulation amount
籽粒磷累积量/(kg/hm²)	16.53±0.53c	17.62±1.56bc	20.28±0.56a	19.04±1.87ab	18.23±1.62b	20.37±1.82ab	22.42±1.08a	21.87±1.57a
Grain P accumulation amount
磷总累积量/(kg/hm²)	20.80±0.95c	21.95±1.49bc	26.37±1.88a	23.79±1.86ab	23.97±0.96b	26.57±2.19b	30.03±1.17a	29.49±1.04a
Total P accumulation amount

Please choose a citation manager

Content to export