Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/00103624.2018.1485931 |
Nitrogen mineralization indicators under semi-arid and semi-humid conditions: influence on wheat yield and nitrogen uptake | |
Martinez, Juan M.1; Galantini, Juan A.2; Duval, Matias E.3; Rosa Landriscini, Maria1; Garcia, Ramiro J.3; Lopez, Fernando3 | |
通讯作者 | Martinez, Juan M. |
来源期刊 | COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
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ISSN | 0010-3624 |
EISSN | 1532-2416 |
出版年 | 2018 |
卷号 | 49期号:15页码:1907-1921 |
英文摘要 | The objectives were i) to assess indicators for potential nitrogen (N) mineralization and ii) to analyze their relationships for predicting winter wheat (Triticum aestivum L.) growth parameters (yield and N uptake, N-up) in Mollisols of the semi-arid and semi-humid region of the Argentine Pampas. Thirty-six farmer fields were sampled at 0-20 cm. Several N mineralization indicators, wheat grain yield and N-up at physiological maturity stage were assessed. A principal component (PC) analysis was performed using correlated factors to grain yield and N-up. The cluster analysis showed two main groups: high fertility and low fertility soils. In high fertility soils, combining PCs in multiple regression models enhanced the wheat yield and N-up prediction significantly with a high R-2 (adj R-2=0.71-0.83). The main factors that explained the wheat parameters were associated with water availability and N mineralization indicator, but they differ according to soil fertility.Abbreviations: N: nitrogen; SOM: soil organic matter; POM: particulate organic matter; SOC: soil organic carbon; SON: soil organic nitrogen; POM-C: particulate organic carbon; POM-N: particulate organic nitrogen; N-an: anaerobic nitrogen; N-hyd: hydrolyzable N; NO3-N: cold nitrate; N-205: N determined by spectrometer at 205 nm; N-260: N determined by spectrometer at 260 nm; Pe: extractable P; N-up: wheat N uptake; NO3-N: inorganic N in the form of nitrate; FR: fallow rainfalls (March-Seeding rainfall); FLR: flowering rainfalls (October-December rainfall); GFR: grain filling rainfall (November rainfall); CCR: crop growing season rainfall (June-December rainfall); PCA: principal component analysis; PC: principal component; MR: multiple regression |
英文关键词 | Mollisols potential N mineralization principal component analysis winter crop |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000442620700010 |
WOS关键词 | SOIL ORGANIC NITROGEN ; AVAILABILITY INDEXES ; CHEMICAL INDEXES ; SUPPLYING-POWER ; MATTER ; CORN ; ARGENTINA ; PLANT ; FRACTIONS ; PAMPA |
WOS类目 | Agronomy ; Plant Sciences ; Chemistry, Analytical ; Soil Science |
WOS研究方向 | Agriculture ; Plant Sciences ; Chemistry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208457 |
作者单位 | 1.Univ Nacl Sur, CONICET, Ctr Recursos Nat Renovables Reg Semiarida, Bahia Blanca, Buenos Aires, Argentina; 2.CIC, La Plata, Buenos Aires, Argentina; 3.UNS, Dept Agron, Bahia Blanca, Buenos Aires, Argentina |
推荐引用方式 GB/T 7714 | Martinez, Juan M.,Galantini, Juan A.,Duval, Matias E.,et al. Nitrogen mineralization indicators under semi-arid and semi-humid conditions: influence on wheat yield and nitrogen uptake[J],2018,49(15):1907-1921. |
APA | Martinez, Juan M.,Galantini, Juan A.,Duval, Matias E.,Rosa Landriscini, Maria,Garcia, Ramiro J.,&Lopez, Fernando.(2018).Nitrogen mineralization indicators under semi-arid and semi-humid conditions: influence on wheat yield and nitrogen uptake.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,49(15),1907-1921. |
MLA | Martinez, Juan M.,et al."Nitrogen mineralization indicators under semi-arid and semi-humid conditions: influence on wheat yield and nitrogen uptake".COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 49.15(2018):1907-1921. |
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