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Effect of biochar on nitrogen use efficiency, grain yield and amino acid content of wheat cultivated on saline soil

Plant, soil and environment, 2019-01, Vol.65 (2), p.83-89 [Peer Reviewed Journal]

2019. This work is published under https://www.agriculturejournals.cz/web/about/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1214-1178 ;EISSN: 1805-9368 ;DOI: 10.17221/525/2018-PSE

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  • Title:
    Effect of biochar on nitrogen use efficiency, grain yield and amino acid content of wheat cultivated on saline soil
  • Author: Sun, Haijun ; Zhang, Huanchao ; Shi, Weiming ; Zhou, Mengyi ; Ma, Xiaofang
  • Subjects: Agricultural production ; Amino acids ; biochar application rate ; biomass resource ; Charcoal ; Crop production ; Crop yield ; Cultivation ; food safety ; Grain ; Grain cultivation ; Nitrogen ; plant nutrition ; Saline soils ; Soil analysis ; sustainable agriculture ; Wheat
  • Is Part Of: Plant, soil and environment, 2019-01, Vol.65 (2), p.83-89
  • Description: Biochar can potentially increase crop production in saline soils. However, the appropriate amount of biochar that should be applied to benefit from resource preservation and increase both grain yield (GY) and quality is not clear. A pot experiment was conducted to evaluate the effects of biochar applied at various rates (i.e., 0, 5, 10, 20, 30, 40 and 50 t/ha) on the nitrogen use efficiency (NUE), GY and amino acid (AA) contents of wheat plants in saline soils. The results showed that the application of 5–20 t/ha biochar increased wheat NUE by 5.2–37.9% and thus increased wheat GY by 2.9–19.4%. However, excessive biochar applications (more than 30 t/ha) had negative effects on both the NUE and GY of wheat. Biochar had little influence on leaf soil and plant analyzer development (SPAD) values, the harvest index or yield components. The AAs were significantly affected by biochar, depending on the application rate. Among the application rates, 5–30 t/ha biochar resulted in relatively higher (by 5.2–19.1%) total AA contents. Similar trends were observed for each of the 17 essential AAs. In conclusion, the positive effects of biochar occurred when it was applied at appropriate rates, but the effects were negative when biochar was overused.
  • Publisher: Prague: Czech Academy of Agricultural Sciences (CAAS)
  • Language: English;Czech
  • Identifier: ISSN: 1214-1178
    EISSN: 1805-9368
    DOI: 10.17221/525/2018-PSE
  • Source: DOAJ Directory of Open Access Journals
    ProQuest Central
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