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Winter Wheat Straw Decomposition under Different Nitrogen Fertilizers

Author

Listed:
  • Gabriela Mühlbachová

    (Crop Research Institute, Drnovská 507/73, 161 06 Prague 6-Ruzyně, Czech Republic)

  • Pavel Růžek

    (Crop Research Institute, Drnovská 507/73, 161 06 Prague 6-Ruzyně, Czech Republic)

  • Helena Kusá

    (Crop Research Institute, Drnovská 507/73, 161 06 Prague 6-Ruzyně, Czech Republic)

  • Radek Vavera

    (Crop Research Institute, Drnovská 507/73, 161 06 Prague 6-Ruzyně, Czech Republic)

  • Martin Káš

    (Crop Research Institute, Drnovská 507/73, 161 06 Prague 6-Ruzyně, Czech Republic)

Abstract

The climate changes and increased drought frequency still more frequent in recent periods bring challenges to management with wheat straw remaining in the field after harvest and to its decomposition. The field experiment carried out in 2017–2019 in the Czech Republic aimed to evaluate winter wheat straw decomposition under different organic and mineral nitrogen fertilizing (urea, pig slurry and digestate with and without inhibitors of nitrification (IN)). Treatment Straw 1 with fertilizers was incorporated in soil each year the first day of experiment. The Straw 2 was placed on soil surface at the same day as Straw 1 and incorporated together with fertilizers after 3 weeks. The Straw 1 decomposition in N treatments varied between 25.8–40.1% and in controls between 21.5–33.1% in 2017–2019. The Straw 2 decomposition varied between 26.3–51.3% in N treatments and in controls between 22.4–40.6%. Higher straw decomposition in 2019 was related to more rainy weather. The drought observed mainly in 2018 led to the decrease of straw decomposition and to the highest contents of residual mineral nitrogen in soils. The limited efficiency of N fertilisers on straw decomposition under drought showed a necessity of revision of current strategy of N treatments and reduction of N doses adequately according the actual weather conditions.

Suggested Citation

  • Gabriela Mühlbachová & Pavel Růžek & Helena Kusá & Radek Vavera & Martin Káš, 2021. "Winter Wheat Straw Decomposition under Different Nitrogen Fertilizers," Agriculture, MDPI, vol. 11(2), pages 1-13, January.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:2:p:83-:d:483470
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    References listed on IDEAS

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    1. Jason C. Neff & Alan R. Townsend & Gerd Gleixner & Scott J. Lehman & Jocelyn Turnbull & William D. Bowman, 2002. "Variable effects of nitrogen additions on the stability and turnover of soil carbon," Nature, Nature, vol. 419(6910), pages 915-917, October.
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    1. Serhii Halko & Oleksandr Vershkov & Jakub Horák & Oleksandr Lezhenkin & Larysa Boltianska & Anatolii Kucher & Olena Suprun & Oleksandr Miroshnyk & Vitalii Nitsenko, 2023. "Efficiency of Combed Straw Harvesting Technology Involving Straw Decomposition in the Soil," Agriculture, MDPI, vol. 13(3), pages 1-15, March.
    2. Barbara Breza-Boruta & Karol Kotwica & Justyna Bauza-Kaszewska, 2021. "Effect of Tillage System and Organic Matter Management Interactions on Soil Chemical Properties and Biological Activity in a Spring Wheat Short-Time Cultivation," Energies, MDPI, vol. 14(21), pages 1-18, November.
    3. Dominic Kwadwo Anning & Huizhen Qiu & Chunhong Zhang & Philip Ghanney & Yujiao Zhang & Yajun Guo, 2021. "Maize Straw Return and Nitrogen Rate Effects on Potato ( Solanum tuberosum L.) Performance and Soil Physicochemical Characteristics in Northwest China," Sustainability, MDPI, vol. 13(10), pages 1-16, May.

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