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Maize Yield Components as Affected by Plant Population, Planting Date and Soil Coverings in Brazil

Author

Listed:
  • Gustavo Castilho Beruski

    (Department of Biosystems Engineering, ESALQ/University of São Paulo, 11 Pádua Dias Ave., Mail Box 9, Piracicaba, SP 13635-900, Brazil)

  • Luis Miguel Schiebelbein

    (Department of Soil Science and Agricultural Engineering, State University of Ponta Grossa, 4748 Carlos Cavalcanti Ave., Uvaranas, Ponta Grossa, PR 84030-900, Brazil)

  • André Belmont Pereira

    (Department of Soil Science and Agricultural Engineering, State University of Ponta Grossa, 4748 Carlos Cavalcanti Ave., Uvaranas, Ponta Grossa, PR 84030-900, Brazil)

Abstract

The potential yield of annual crops is affected by management practices and water and energy availabilities throughout the crop season. The current work aimed to assess the effects of plant population, planting dates and soil covering on yield components of maize. Field experiments were carried out during the 2014–2015 and 2015–2016 growing seasons at areas grown with oat straw, voluntary plants and bare soil, considering five plant populations (40,000, 60,000, 80,000, 100,000 and 120,000 plants ha −1 ) and three sowing dates (15 September, 30 October and 15 December) for the hybrid P30F53YH in Ponta Grossa, State of Paraná, Brazil. Non-impacts of soil covering or plant population on plant height at the flowering phenological stage were observed. Significant effects of soil covering on yield components and final yield responses throughout the 2014–2015 season were detected. An influence of plant populations on yield components was evidenced, suggesting that, from 80,000 plants ha −1 , the P30F53YH hybrid performs a compensatory effect among assessed yield components in such a way as to not compromise productivity insofar as the plant population increases up to 120,000 plants ha −1 . It was noticed, a positive trend of yield components and crop final yield as a function of plant density increments.

Suggested Citation

  • Gustavo Castilho Beruski & Luis Miguel Schiebelbein & André Belmont Pereira, 2020. "Maize Yield Components as Affected by Plant Population, Planting Date and Soil Coverings in Brazil," Agriculture, MDPI, vol. 10(12), pages 1-20, November.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:12:p:579-:d:450554
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    References listed on IDEAS

    as
    1. Anapalli, Saseendran S. & Green, Timothy R. & Reddy, Krishna N. & Gowda, Prasanna H. & Sui, Ruixiu & Fisher, Daniel K. & Moorhead, Jerry E. & Marek, Gary W., 2018. "Application of an energy balance method for estimating evapotranspiration in cropping systems," Agricultural Water Management, Elsevier, vol. 204(C), pages 107-117.
    2. Unkovich, Murray & Baldock, Jeff & Farquharson, Ryan, 2018. "Field measurements of bare soil evaporation and crop transpiration, and transpiration efficiency, for rainfed grain crops in Australia – A review," Agricultural Water Management, Elsevier, vol. 205(C), pages 72-80.
    3. Irmak, Suat & Kukal, Meetpal S. & Mohammed, Ali T. & Djaman, Koffi, 2019. "Disk-till vs. no-till maize evapotranspiration, microclimate, grain yield, production functions and water productivity," Agricultural Water Management, Elsevier, vol. 216(C), pages 177-195.
    4. J. P. Royston, 1982. "The W Test for Normality," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 31(2), pages 176-180, June.
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