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| Timing of N Application Affects Net Primary Production of Soybean with Different Planting Densities |
| ZHANG Ming-cong, SUN Wen-xiang, LIU Yuan-ying, LUO Sheng-guo, ZHAO Jing, WU Qiong, WU Zhen-yu , JIANG Yi |
| Resource and Environment College, Northeast Agricultural University, Harbin 150030, P.R.China |
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摘要 Understanding the relationship between the timing of N fertilizer applications and crop primary production is crucial for achieving high yield and N use efficiency in agriculture. This study investigated the effects of starting-N plus topdressing N applications (as compared to the common practice of all basal application) on soybean photosynthetic capacity under different planting densities. A field experiment was conducted in two growing seasons (2011 and 2012), and the soybean (Glycine max L. Merrill) cultivar was Dongnong 52, three planting densities (20, 25 and 30 plants m-2), and four N fertilizer application patterns (all N fertilizer of 6 g N m-2 as basal fertilizer, all N fertilizer as topdressing at beginning pod stage (R3), 1.8 g N m-2 as basal fertilizer and 4.2 g N m-2 as topdressing at stage R3 and full pod stage (R4), respectively). The results indicated that under the same planting density, compared to applying all N as basal fertilizer, the application of starter-N plus topdressing N substantially reduced the rate of pod abscission, and enhanced leaf area index (LAI) significantly at beginning seed stage (R5) (P<0.05), net assimilation rate (NAR) during stages R4-full seed stage (R6) (P<0.05), contribution rate of post-seed filling assimilate to seed (CPA) (P<0.05), and yield (P<0.05). Applying topdressing N at stage R4 resulted in higher net primary production and yield than applying topdressing N at stage R3. When applying starter-N plus topdressing N at planting density of 25 plants m-2, LAI after stage R5 and NAR after stage R4 were increased by 5.92-16.3% (P<0.05) and 13.7-26.6% (P<0.05) with the planting density of 20 plants m-2, respectively, and yield was 8.46-14.0% (P<0.05) higher than that under 20 plants m-2. When planting density increased to 30 plants m-2, only LAI during stages R4-R5 and NAR during stages R4-R5 increased by applying starter-N plus topdressing N, while the other indexes declined. Overall, results of this study demonstrated that applying starter-N plus topdressing N could significantly enhance soybean photosynthetic capacity after stage R5 at planting density of 25 plants m-2.
Abstract Understanding the relationship between the timing of N fertilizer applications and crop primary production is crucial for achieving high yield and N use efficiency in agriculture. This study investigated the effects of starting-N plus topdressing N applications (as compared to the common practice of all basal application) on soybean photosynthetic capacity under different planting densities. A field experiment was conducted in two growing seasons (2011 and 2012), and the soybean (Glycine max L. Merrill) cultivar was Dongnong 52, three planting densities (20, 25 and 30 plants m-2), and four N fertilizer application patterns (all N fertilizer of 6 g N m-2 as basal fertilizer, all N fertilizer as topdressing at beginning pod stage (R3), 1.8 g N m-2 as basal fertilizer and 4.2 g N m-2 as topdressing at stage R3 and full pod stage (R4), respectively). The results indicated that under the same planting density, compared to applying all N as basal fertilizer, the application of starter-N plus topdressing N substantially reduced the rate of pod abscission, and enhanced leaf area index (LAI) significantly at beginning seed stage (R5) (P<0.05), net assimilation rate (NAR) during stages R4-full seed stage (R6) (P<0.05), contribution rate of post-seed filling assimilate to seed (CPA) (P<0.05), and yield (P<0.05). Applying topdressing N at stage R4 resulted in higher net primary production and yield than applying topdressing N at stage R3. When applying starter-N plus topdressing N at planting density of 25 plants m-2, LAI after stage R5 and NAR after stage R4 were increased by 5.92-16.3% (P<0.05) and 13.7-26.6% (P<0.05) with the planting density of 20 plants m-2, respectively, and yield was 8.46-14.0% (P<0.05) higher than that under 20 plants m-2. When planting density increased to 30 plants m-2, only LAI during stages R4-R5 and NAR during stages R4-R5 increased by applying starter-N plus topdressing N, while the other indexes declined. Overall, results of this study demonstrated that applying starter-N plus topdressing N could significantly enhance soybean photosynthetic capacity after stage R5 at planting density of 25 plants m-2.
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Received: 23 April 2013
Accepted:
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| Fund: This study was conducted in the Key Laboratory of Soybean Biology, Ministry of Education and financially supported by the Special Fund for Agro-Scientific Research in the Public Interest, China (201103003), and the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2012BAD20B04). |
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Corresponding Authors:
LIU Yuan-ying, Mobile: 13895705271, Tel: +86-451-55190439,E-mail: yuanyingl@163.com
E-mail: yuanyingl@163.com
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| About author: ZHANG Ming-cong, Mobile: 15845001970, E-mail: zhangmingcong@163.com |
Cite this article:
ZHANG Ming-cong, SUN Wen-xiang, LIU Yuan-ying, LUO Sheng-guo, ZHAO Jing, WU Qiong, WU Zhen-yu , JIANG Yi.
2014.
Timing of N Application Affects Net Primary Production of Soybean with Different Planting Densities. Journal of Integrative Agriculture, 13(12): 2778-2787.
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| Aslam M, Khan N A, Siddique Mirza M, Naeemullah. 1993.Effect of different row and plant spacing on soybeanyield and its components. Pakistan Journal AgriculturalResearch, 14, 143-148Chang Y Z. 1981. Problems of the leaf area of the high yieldculture in soybean. Scientia Agricultura Sinica, 2, 22-26 (in Chinese)Dordas C A, Sioulas C. 2009. Dry matter and nitrogenaccumulation, partitioning, and retranslocation insafflower (Carthamus tinctorius L.) as affected by nitrogenfertilization. Field Crops Research, 110, 35-43Egli D B, Bruening W P. 2005. Shade and temporal distributionof pod production and pod set in soybean. Crop Science,45, 1764-1769Egli D B. 1988. Plant density and soybean yield. Crop Science,28, 977-981Faluyi M A. 1990. Implications of selecting improved strainsof soybeans for dry-matter accumulation and grain yield.Euphytica, 50, 197-201Flavio H G, Javier D S, Helena R, Raul S L. 2004. Lateseason nitrogen fertilization of soybeans: Effects on leafsenescence, yield and environment. Nutrient Cycling inAgroecosystems, 68, 109-115Fu J, Huang Z H, Wang Z Q, Yang J C, Zhang J H. 2011.Pre-anthesis non-structural carbohydrate reserve in thestem enhances the sink strength of inferior spikelets duringgrain filling of rice. Filed Crops Research, 123, 170-182Fu J, Yang J C. 2012. Research advances in high-yieldingcultivation and physiology of super rice. Rice Science,19, 177-184Golparvar P, Mirshekari B, Borhani P. 2012. Nitrogen sprayingof soybeans at earlier flowering stage will be an ecologicalfriendly fertilization management and improve crop yield.World Applied Sciences Journal, 19, 1388-1392Gou L, Yan J, Han C L, Zhao R H, Zhang W F, Yang X J. 2004.Effects of nitrogen rates on photosynthetic characteristicsand yield of high-yielding cotton in Xinjiang. PlantNutrition and Fertilizer Science, 10, 488-493 (in Chinese)Gourdon F, Planchon C. 1982. Responses of photosynthesisto irradiance and temperature in soybean. PhotosynthesisResearch, 3, 31-43Hao N B, Ge Q Y, Zhang Y Z, Xu J, Zhang G Z, Tan K H.1989. Studies on the photosynthetic properties of soybeanwith photosynthetic efficiency. Soybean Science, 8, 283-287 (in Chinese)Heitholt J J, Egli D, Leggett J E. 1986. Role of assimilateand carbon-14 photo synthate partitioning in soybeanreproductive abortion Crop Science, 26, 999-1004Herbert S J, Litchfield G V. 1984. Growth response of shortseasonsoybean to variations in row spacing and density.Field Crops Research, 9, 163-171Hou Y H, Chen C Y, Hu X F, Dong S T, Zhao M. 2012. NARdynamic characteristics and quantitative analysis for highyieldingpopulation of spring maize. Journal of MaizeSciences, 20, 65-70 (in Chinese)Koutroubas S D, Papakosta D K, Gagianas A A. 1998. Theimportance of early dry matter and nitrogen accumulationin soybean yield. European Journal of Agronomy, 9, 1-10Lawrence A, Kapustka, Kenneth G W. 1990. The influence ofsoybean planting density on dinitrogen fixation and yield.Plant and Soil, 129, 145-156Li Y K. 1983. Conventional Methods for Soil and AgricultureChemistry Analysis. Science and Technology Press,Beijing, China. pp. 67-172 (in Chinese)Liu X B, Jin J, Herbert S J, Zhang Q Y, Wang G H. 2005.Yield components, dry matter, LAI and LAD of soybeansin Northeast China. Field Crops Research, 93, 85-93Liu X B, Jin J, Wang G H, Herbert S J. 2008. Soybean yieldphysiology and development of high-yielding practicesin Northeast China. Field Crops Research, 105, 157-171Masoni A, Ercoli L, Mariotti M, Arduini I. 2007. Post-anthesisaccumulation and remobilization of dry matter, nitrogenand phosphorus in durum wheat as affected by soil type.European Journal of Agronomy, 26, 179-186Miao Y N, Zhu C P, Shi L X, Xu Y. 1999. Exploring theideal plant type for high yielding via physiologicalcharacteristics in yield form action in soybean. SoybeanScience, 18, 342-346 (in Chinese)Setiyono T D, Weiss A, Specht J E, Cassman K G, DobermannA. 2008. Leaf area index simulation in soybean grownunder near-optimal conditions. Field Crops Research,108, 82-92Teng Z L 2010. The effects of optimized fertilization onpopulation quality and yield of soybean. MSc thesis,Northeast Agricultural University, China. (in Chinese)Wajid A, Hussain A, Ahmad A. 2004. Effect of sowing dateand plant density on growth, light interception and yieldof wheat under semi arid conditions. International Journalof Agriculture & Biology, 6, 1119-1123Wang Y, Wang P R. 1984. Effects of dressing nitrogen on yieldof the summer soybean at flowering and podding. ChineseJournal of Oil Sciences, 2, 55-57. (in Chinese)Wang Z L, Yin Y P, He M R, Cao H M. 1998. Source-sinkmanipulation effects on post-anthesis photosynthesis andgrain setting on spike in winter wheat. Photosynthetica,35, 453-459Wei J J, Luo G T, Zhang L, Wang X G, Dong Z. 2009. Physiological parameters of super-high yielding soybeancultivar Zhonghuang 35. Acta Agronomica Sinica, 35,506-511. (in Chinese)Xia M Z, Xiong F Q. 1986. Relationship between the netassimilation rate and the planting density in broad bean,Tillage and Cultivation, 3, 67-69. (in Chinese)Zhang W Z. 2008. Effects of N management on C and Nmetabolisms and yield of soybean. Msc thesis, NortheastAgricultural University, China. (in Chinese)Zhou X J, Liang Y, Chen H, Shen S H. 2006. Effects of rhizobiainoculation and nitrogen fertilization on photosyntheticphysiology of soybean. Photosynthetica, 44, 530-535Zou B, Dong Z R, Wang J S, Zhang J, Tan J, Xu X G, LiuY, Li X W. 2011. Response of post-anthesis assimilatesremobilization and yield to nitrogen management. ChineseAgricultural Science Bulletin, 27, 63-67 (in Chinese) |
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